| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<!-- XBRL document created with Toppan Merrill Bridge 9.5.2.4 --> |
<!-- Based on XBRL 2.1 --> |
<!-- Created on: 2/5/2020 4:29:42 PM --> |
<!-- Modified on: 2/5/2020 4:29:43 PM --> |
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"> |
| <roleRef xlink:type="simple" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd#eedm" roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#StatementCondensedBalanceSheets" roleURI="http://www.bostoncapital.com/role/StatementCondensedBalanceSheets"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#StatementCondensedBalanceSheetsParenthetical" roleURI="http://www.bostoncapital.com/role/StatementCondensedBalanceSheetsParenthetical"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#StatementCondensedStatementsOfOperations" roleURI="http://www.bostoncapital.com/role/StatementCondensedStatementsOfOperations"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#StatementCondensedStatementsOfChangesInPartnersCapitalDeficit" roleURI="http://www.bostoncapital.com/role/StatementCondensedStatementsOfChangesInPartnersCapitalDeficit"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#StatementCondensedStatementsOfCashFlows" roleURI="http://www.bostoncapital.com/role/StatementCondensedStatementsOfCashFlows"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#DisclosureOrganizationBacsSoldAndTotalEquityDetails" roleURI="http://www.bostoncapital.com/role/DisclosureOrganizationBacsSoldAndTotalEquityDetails"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#DisclosureRelatedPartyTransactionsFundManagementFeesAccruedDetails" roleURI="http://www.bostoncapital.com/role/DisclosureRelatedPartyTransactionsFundManagementFeesAccruedDetails"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#DisclosureRelatedPartyTransactionsFundManagementFeesPaidDetails" roleURI="http://www.bostoncapital.com/role/DisclosureRelatedPartyTransactionsFundManagementFeesPaidDetails"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#DisclosureInvestmentsInOperatingPartnershipsOperatingPartnershipsWithinFundDetails" roleURI="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsOperatingPartnershipsWithinFundDetails"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#DisclosureInvestmentsInOperatingPartnershipsContributionsPayableDetails" roleURI="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsContributionsPayableDetails"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#DisclosureInvestmentsInOperatingPartnershipsDispositionsBySeriesDetails" roleURI="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsDispositionsBySeriesDetails"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#DisclosureInvestmentsInOperatingPartnershipsCurrentFinancialResultsAvailableForOperatingPartnershipsDetails" roleURI="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsCurrentFinancialResultsAvailableForOperatingPartnershipsDetails"/> |
| <roleRef xlink:type="simple" xlink:href="bctciv-20191231.xsd#DisclosureInvestmentsInOperatingPartnershipsAdditionalInformationDetails" roleURI="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsAdditionalInformationDetails"/> |
| <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/> |
| <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/> |
| <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/> |
| <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/> |
| <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/> |
| <arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/notAll" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll"/> |
| <definitionLink xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="extended" xlink:title="Extensible Enumeration Domain Members"/> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/StatementCondensedBalanceSheets" xlink:type="extended" xlink:title="00100 - Statement - CONDENSED BALANCE SHEETS"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_StatementTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain_637165169822871535"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain_637165169822871535" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyOneMember" xlink:label="bctciv_SeriesTwentyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFiveMember" xlink:label="bctciv_SeriesTwentyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySevenMember" xlink:label="bctciv_SeriesThirtySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyNineMember" xlink:label="bctciv_SeriesThirtyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="24" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="25" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="26" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="27" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="us-gaap_AssetsAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_AssetsAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RealEstateInvestmentPropertyNet" xlink:label="us-gaap_RealEstateInvestmentPropertyNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_RealEstateInvestmentPropertyNet" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsUnclassifiedAbstract" xlink:label="us-gaap_OtherAssetsUnclassifiedAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_OtherAssetsUnclassifiedAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_OtherAssetsUnclassifiedAbstract" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssets" xlink:label="us-gaap_OtherAssets"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_OtherAssetsUnclassifiedAbstract" xlink:to="us-gaap_OtherAssets" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_Assets" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="us-gaap_LiabilitiesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_LiabilitiesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_LiabilitiesAbstract" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueToAffiliateCurrentAndNoncurrent" xlink:label="us-gaap_DueToAffiliateCurrentAndNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_LiabilitiesAbstract" xlink:to="us-gaap_DueToAffiliateCurrentAndNoncurrent" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_CapitalContributionsPayable" xlink:label="bctciv_CapitalContributionsPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_LiabilitiesAbstract" xlink:to="bctciv_CapitalContributionsPayable" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_LiabilitiesAbstract" xlink:to="us-gaap_Liabilities" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnersCapitalAbstract" xlink:label="us-gaap_PartnersCapitalAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PartnersCapitalAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_AssignorLimitedPartnersInterestCapital" xlink:label="bctciv_AssignorLimitedPartnersInterestCapital"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_PartnersCapitalAbstract" xlink:to="bctciv_AssignorLimitedPartnersInterestCapital" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GeneralPartnersCapitalAccount" xlink:label="us-gaap_GeneralPartnersCapitalAccount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_PartnersCapitalAbstract" xlink:to="us-gaap_GeneralPartnersCapitalAccount" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnersCapital" xlink:label="us-gaap_PartnersCapital"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PartnersCapital" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/StatementCondensedBalanceSheetsParenthetical" xlink:type="extended" xlink:title="00105 - Statement - CONDENSED BALANCE SHEETS (Parenthetical)"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_StatementTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyOneMember" xlink:label="bctciv_SeriesTwentyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFiveMember" xlink:label="bctciv_SeriesTwentyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySevenMember" xlink:label="bctciv_SeriesThirtySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyNineMember" xlink:label="bctciv_SeriesThirtyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="24" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="25" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="26" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="27" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnersCapitalAccountDistributionPerUnitOfLimitedPartnerInterest" xlink:label="us-gaap_PartnersCapitalAccountDistributionPerUnitOfLimitedPartnerInterest"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PartnersCapitalAccountDistributionPerUnitOfLimitedPartnerInterest" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedPartnersCapitalAccountUnitsAuthorized" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsAuthorized"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_LimitedPartnersCapitalAccountUnitsAuthorized" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedPartnersCapitalAccountUnitsIssued" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_LimitedPartnersCapitalAccountUnitsIssued" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/StatementCondensedStatementsOfOperations" xlink:type="extended" xlink:title="00200 - Statement - CONDENSED STATEMENTS OF OPERATIONS"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_StatementTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyOneMember" xlink:label="bctciv_SeriesTwentyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFiveMember" xlink:label="bctciv_SeriesTwentyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySevenMember" xlink:label="bctciv_SeriesThirtySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyNineMember" xlink:label="bctciv_SeriesThirtyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="24" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="25" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="26" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="27" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="us-gaap_RevenuesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_RevenuesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestIncomeOperating" xlink:label="us-gaap_InterestIncomeOperating"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_InterestIncomeOperating" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncome" xlink:label="us-gaap_OtherIncome"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_OtherIncome" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues" xlink:label="us-gaap_Revenues"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_Revenues" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:label="us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="us-gaap_OperatingExpensesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_OperatingExpensesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="us-gaap_ProfessionalFees"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_ProfessionalFees" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_FundManagementFees" xlink:label="bctciv_FundManagementFees"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="bctciv_FundManagementFees" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="us-gaap_GeneralAndAdministrativeExpense"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_GeneralAndAdministrativeExpense" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="us-gaap_OperatingExpenses"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpenses" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetIncomeLoss" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLossAllocatedToLimitedPartners" xlink:label="us-gaap_NetIncomeLossAllocatedToLimitedPartners"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetIncomeLossAllocatedToLimitedPartners" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLossAllocatedToGeneralPartners" xlink:label="us-gaap_NetIncomeLossAllocatedToGeneralPartners"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetIncomeLossAllocatedToGeneralPartners" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" xlink:label="us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/StatementCondensedStatementsOfChangesInPartnersCapitalDeficit" xlink:type="extended" xlink:title="00300 - Statement - CONDENSED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (DEFICIT)"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_StatementTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyOneMember" xlink:label="bctciv_SeriesTwentyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFiveMember" xlink:label="bctciv_SeriesTwentyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySevenMember" xlink:label="bctciv_SeriesThirtySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyNineMember" xlink:label="bctciv_SeriesThirtyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="24" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="25" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="26" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="27" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="2" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" xlink:to="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" xlink:label="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_637165169823578911"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" order="1" xlink:from="us-gaap_PartnerTypeOfPartnersCapitalAccountAxis" xlink:to="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain_637165169823578911" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_AssigneesMember" xlink:label="bctciv_AssigneesMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" xlink:to="bctciv_AssigneesMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GeneralPartnerMember" xlink:label="us-gaap_GeneralPartnerMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_PartnerTypeOfPartnersCapitalAccountNameDomain" xlink:to="us-gaap_GeneralPartnerMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnersCapital" xlink:label="us-gaap_PartnersCapital"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PartnersCapital" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnersCapitalAccountContributions" xlink:label="us-gaap_PartnersCapitalAccountContributions"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PartnersCapitalAccountContributions" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PartnersCapitalAccountDistributions" xlink:label="us-gaap_PartnersCapitalAccountDistributions"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PartnersCapitalAccountDistributions" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetIncomeLoss" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/StatementCondensedStatementsOfCashFlows" xlink:type="extended" xlink:title="00400 - Statement - CONDENSED STATEMENTS OF CASH FLOWS"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_StatementTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyOneMember" xlink:label="bctciv_SeriesTwentyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFiveMember" xlink:label="bctciv_SeriesTwentyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySevenMember" xlink:label="bctciv_SeriesThirtySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyNineMember" xlink:label="bctciv_SeriesThirtyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="24" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="25" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="26" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="27" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetIncomeLoss" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="us-gaap_IncomeLossFromEquityMethodInvestments"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_IncomeLossFromEquityMethodInvestments" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOtherOperatingAssets" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInDueToAffiliates" xlink:label="us-gaap_IncreaseDecreaseInDueToAffiliates"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInDueToAffiliates" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments" xlink:label="us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_ProceedsFromSaleOfEquityMethodInvestments" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfDistributionsToAffiliates" xlink:label="us-gaap_PaymentsOfDistributionsToAffiliates"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_PaymentsOfDistributionsToAffiliates" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionPayablesAssumed1" xlink:label="us-gaap_NoncashOrPartNoncashAcquisitionPayablesAssumed1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:to="us-gaap_NoncashOrPartNoncashAcquisitionPayablesAssumed1" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_NonCashOrPartNonCashOfNotesReceivablesAndAdvancesToCapitalContribution" xlink:label="bctciv_NonCashOrPartNonCashOfNotesReceivablesAndAdvancesToCapitalContribution"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:to="bctciv_NonCashOrPartNonCashOfNotesReceivablesAndAdvancesToCapitalContribution" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/DisclosureOrganizationBacsSoldAndTotalEquityDetails" xlink:type="extended" xlink:title="40101 - Disclosure - ORGANIZATION - BACs sold and total equity (Details)"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfCapitalUnitsTable" xlink:label="us-gaap_ScheduleOfCapitalUnitsTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_ScheduleOfCapitalUnitsTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyOneMember" xlink:label="bctciv_SeriesTwentyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFiveMember" xlink:label="bctciv_SeriesTwentyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySevenMember" xlink:label="bctciv_SeriesThirtySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyNineMember" xlink:label="bctciv_SeriesThirtyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="24" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="25" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="26" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="27" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalUnitLineItems" xlink:label="us-gaap_CapitalUnitLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_CapitalUnitLineItems" xlink:to="us-gaap_ScheduleOfCapitalUnitsTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_ClosingDateOfUnitsIssuedAndEquityRaised" xlink:label="bctciv_ClosingDateOfUnitsIssuedAndEquityRaised"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_CapitalUnitLineItems" xlink:to="bctciv_ClosingDateOfUnitsIssuedAndEquityRaised" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedPartnersCapitalAccountUnitsIssued" xlink:label="us-gaap_LimitedPartnersCapitalAccountUnitsIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_CapitalUnitLineItems" xlink:to="us-gaap_LimitedPartnersCapitalAccountUnitsIssued" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LimitedPartnersContributedCapital" xlink:label="us-gaap_LimitedPartnersContributedCapital"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="us-gaap_CapitalUnitLineItems" xlink:to="us-gaap_LimitedPartnersContributedCapital" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/DisclosureRelatedPartyTransactionsFundManagementFeesAccruedDetails" xlink:type="extended" xlink:title="40301 - Disclosure - RELATED PARTY TRANSACTIONS - Fund management fees accrued (Details)"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="us-gaap_RelatedPartyTransactionLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_RelatedPartyTransactionLineItems" xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_GrossManagementFee" xlink:label="bctciv_GrossManagementFee"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_RelatedPartyTransactionLineItems" xlink:to="bctciv_GrossManagementFee" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/DisclosureRelatedPartyTransactionsFundManagementFeesPaidDetails" xlink:type="extended" xlink:title="40302 - Disclosure - RELATED PARTY TRANSACTIONS - Fund management fees paid (Details)"> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySevenMember" xlink:label="bctciv_SeriesThirtySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="us-gaap_RelatedPartyTransactionLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_RelatedPartyTransactionLineItems" xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ManagementFeeExpense" xlink:label="us-gaap_ManagementFeeExpense"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_RelatedPartyTransactionLineItems" xlink:to="us-gaap_ManagementFeeExpense" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsOperatingPartnershipsWithinFundDetails" xlink:type="extended" xlink:title="40401 - Disclosure - INVESTMENTS IN OPERATING PARTNERSHIPS - Operating Partnerships within the Fund (Details)"> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_ScheduleOfNumberOfOperatingPartnershipsTable" xlink:label="bctciv_ScheduleOfNumberOfOperatingPartnershipsTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="bctciv_ScheduleOfNumberOfOperatingPartnershipsTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_NumberOfOperatingPartnershipsLineItems" xlink:label="bctciv_NumberOfOperatingPartnershipsLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="bctciv_NumberOfOperatingPartnershipsLineItems" xlink:to="bctciv_ScheduleOfNumberOfOperatingPartnershipsTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_NumberOfOperatingPartnerships" xlink:label="bctciv_NumberOfOperatingPartnerships"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_NumberOfOperatingPartnershipsLineItems" xlink:to="bctciv_NumberOfOperatingPartnerships" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsContributionsPayableDetails" xlink:type="extended" xlink:title="40402 - Disclosure - INVESTMENTS IN OPERATING PARTNERSHIPS - Contributions payable (Details)"> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_ScheduleOfContributionsPayableTable" xlink:label="bctciv_ScheduleOfContributionsPayableTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="bctciv_ScheduleOfContributionsPayableTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_ContributionsPayableLineItems" xlink:label="bctciv_ContributionsPayableLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="bctciv_ContributionsPayableLineItems" xlink:to="bctciv_ScheduleOfContributionsPayableTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_CapitalContributionsPayable" xlink:label="bctciv_CapitalContributionsPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_ContributionsPayableLineItems" xlink:to="bctciv_CapitalContributionsPayable" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsDispositionsBySeriesDetails" xlink:type="extended" xlink:title="40403 - Disclosure - INVESTMENTS IN OPERATING PARTNERSHIPS - Dispositions by series (Details)"> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_ScheduleOfDispositionsBySeriesTable" xlink:label="bctciv_ScheduleOfDispositionsBySeriesTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="bctciv_ScheduleOfDispositionsBySeriesTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyMember" xlink:label="bctciv_SeriesTwentyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyOneMember" xlink:label="bctciv_SeriesTwentyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyTwoMember" xlink:label="bctciv_SeriesTwentyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyThreeMember" xlink:label="bctciv_SeriesTwentyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFiveMember" xlink:label="bctciv_SeriesTwentyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySevenMember" xlink:label="bctciv_SeriesThirtySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyNineMember" xlink:label="bctciv_SeriesThirtyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="21" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="22" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="23" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="24" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="25" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="26" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="27" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_DispositionsBySeriesDisclosureLineItems" xlink:label="bctciv_DispositionsBySeriesDisclosureLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="bctciv_DispositionsBySeriesDisclosureLineItems" xlink:to="bctciv_ScheduleOfDispositionsBySeriesTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipInterestTransferred" xlink:label="bctciv_OperatingPartnershipInterestTransferred"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_DispositionsBySeriesDisclosureLineItems" xlink:to="bctciv_OperatingPartnershipInterestTransferred" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SaleOfUnderlyingOperatingPartnership" xlink:label="bctciv_SaleOfUnderlyingOperatingPartnership"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_DispositionsBySeriesDisclosureLineItems" xlink:to="bctciv_SaleOfUnderlyingOperatingPartnership" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments" xlink:label="us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_DispositionsBySeriesDisclosureLineItems" xlink:to="us-gaap_ProceedsFromSaleOfEquityMethodInvestments" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnSaleOfInvestments" xlink:label="us-gaap_GainLossOnSaleOfInvestments"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_DispositionsBySeriesDisclosureLineItems" xlink:to="us-gaap_GainLossOnSaleOfInvestments" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsCurrentFinancialResultsAvailableForOperatingPartnershipsDetails" xlink:type="extended" xlink:title="40404 - Disclosure - INVESTMENTS IN OPERATING PARTNERSHIPS - Current financial results available for the Operating Partnerships (Details)"> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_ScheduleOfSummarizedStatementOfOperationsInOperatingPartnershipsTable" xlink:label="bctciv_ScheduleOfSummarizedStatementOfOperationsInOperatingPartnershipsTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="bctciv_ScheduleOfSummarizedStatementOfOperationsInOperatingPartnershipsTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyFourMember" xlink:label="bctciv_SeriesTwentyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySixMember" xlink:label="bctciv_SeriesTwentySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentySevenMember" xlink:label="bctciv_SeriesTwentySevenMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentySevenMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyThreeMember" xlink:label="bctciv_SeriesThirtyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFourMember" xlink:label="bctciv_SeriesThirtyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="9" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyFiveMember" xlink:label="bctciv_SeriesThirtyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtySixMember" xlink:label="bctciv_SeriesThirtySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="11" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyEightMember" xlink:label="bctciv_SeriesThirtyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="12" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="13" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyOneMember" xlink:label="bctciv_SeriesFortyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="14" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyTwoMember" xlink:label="bctciv_SeriesFortyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="15" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="16" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFourMember" xlink:label="bctciv_SeriesFortyFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="17" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFourMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyFiveMember" xlink:label="bctciv_SeriesFortyFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="18" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyFiveMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortySixMember" xlink:label="bctciv_SeriesFortySixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="19" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortySixMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SummarizedStatementOfOperationsInOperatingPartnershipsLineItems" xlink:label="bctciv_SummarizedStatementOfOperationsInOperatingPartnershipsLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="bctciv_SummarizedStatementOfOperationsInOperatingPartnershipsLineItems" xlink:to="bctciv_ScheduleOfSummarizedStatementOfOperationsInOperatingPartnershipsTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="us-gaap_RevenuesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_SummarizedStatementOfOperationsInOperatingPartnershipsLineItems" xlink:to="us-gaap_RevenuesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsRentalIncome" xlink:label="bctciv_OperatingPartnershipsRentalIncome"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="us-gaap_RevenuesAbstract" xlink:to="bctciv_OperatingPartnershipsRentalIncome" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsInterestAndOtherIncome" xlink:label="bctciv_OperatingPartnershipsInterestAndOtherIncome"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_RevenuesAbstract" xlink:to="bctciv_OperatingPartnershipsInterestAndOtherIncome" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsRevenues" xlink:label="bctciv_OperatingPartnershipsRevenues"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="us-gaap_RevenuesAbstract" xlink:to="bctciv_OperatingPartnershipsRevenues" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_ExpensesAbstract" xlink:label="bctciv_ExpensesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_SummarizedStatementOfOperationsInOperatingPartnershipsLineItems" xlink:to="bctciv_ExpensesAbstract" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsInterestExpenses" xlink:label="bctciv_OperatingPartnershipsInterestExpenses"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_ExpensesAbstract" xlink:to="bctciv_OperatingPartnershipsInterestExpenses" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsDepreciationAndAmortization" xlink:label="bctciv_OperatingPartnershipsDepreciationAndAmortization"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_ExpensesAbstract" xlink:to="bctciv_OperatingPartnershipsDepreciationAndAmortization" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsOperatingExpenses" xlink:label="bctciv_OperatingPartnershipsOperatingExpenses"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_ExpensesAbstract" xlink:to="bctciv_OperatingPartnershipsOperatingExpenses" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsTotalExpenses" xlink:label="bctciv_OperatingPartnershipsTotalExpenses"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_ExpensesAbstract" xlink:to="bctciv_OperatingPartnershipsTotalExpenses" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsNetIncomeLoss" xlink:label="bctciv_OperatingPartnershipsNetIncomeLoss"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_SummarizedStatementOfOperationsInOperatingPartnershipsLineItems" xlink:to="bctciv_OperatingPartnershipsNetIncomeLoss" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsNetIncomeLossAllocatedToParent" xlink:label="bctciv_OperatingPartnershipsNetIncomeLossAllocatedToParent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_SummarizedStatementOfOperationsInOperatingPartnershipsLineItems" xlink:to="bctciv_OperatingPartnershipsNetIncomeLossAllocatedToParent" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_OperatingPartnershipsNetIncomeLossAllocatedToOtherPartners" xlink:label="bctciv_OperatingPartnershipsNetIncomeLossAllocatedToOtherPartners"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_SummarizedStatementOfOperationsInOperatingPartnershipsLineItems" xlink:to="bctciv_OperatingPartnershipsNetIncomeLossAllocatedToOtherPartners" priority="1" use="optional"/> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.bostoncapital.com/role/DisclosureInvestmentsInOperatingPartnershipsAdditionalInformationDetails" xlink:type="extended" xlink:title="40405 - Disclosure - INVESTMENTS IN OPERATING PARTNERSHIPS - Additional Information (Details)"> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_InvestmentsInOperatingLimitedPartnershipsTable" xlink:label="bctciv_InvestmentsInOperatingLimitedPartnershipsTable"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesAxis" xlink:label="bctciv_TaxCreditSeriesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="bctciv_InvestmentsInOperatingLimitedPartnershipsTable" xlink:to="bctciv_TaxCreditSeriesAxis" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_TaxCreditSeriesDomain" xlink:label="bctciv_TaxCreditSeriesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="bctciv_TaxCreditSeriesAxis" xlink:to="bctciv_TaxCreditSeriesDomain" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyEightMember" xlink:label="bctciv_SeriesTwentyEightMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyEightMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesTwentyNineMember" xlink:label="bctciv_SeriesTwentyNineMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesTwentyNineMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyMember" xlink:label="bctciv_SeriesThirtyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyOneMember" xlink:label="bctciv_SeriesThirtyOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyOneMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesThirtyTwoMember" xlink:label="bctciv_SeriesThirtyTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="5" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesThirtyTwoMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyMember" xlink:label="bctciv_SeriesFortyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="6" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_SeriesFortyThreeMember" xlink:label="bctciv_SeriesFortyThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="bctciv_TaxCreditSeriesDomain" xlink:to="bctciv_SeriesFortyThreeMember" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_InvestmentsInOperatingLimitedPartnershipsLineItems" xlink:label="bctciv_InvestmentsInOperatingLimitedPartnershipsLineItems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="bctciv_InvestmentsInOperatingLimitedPartnershipsLineItems" xlink:to="bctciv_InvestmentsInOperatingLimitedPartnershipsTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_WriteOffOfCapitalContributionPayable" xlink:label="bctciv_WriteOffOfCapitalContributionPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="bctciv_InvestmentsInOperatingLimitedPartnershipsLineItems" xlink:to="bctciv_WriteOffOfCapitalContributionPayable" priority="1" use="optional"/> |
| | <loc xlink:type="locator" xlink:href="bctciv-20191231.xsd#bctciv_ReceivableFromSaleOfEquityInvestment" xlink:label="bctciv_ReceivableFromSaleOfEquityInvestment"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="bctciv_InvestmentsInOperatingLimitedPartnershipsLineItems" xlink:to="bctciv_ReceivableFromSaleOfEquityInvestment" priority="1" use="optional"/> |
| | </definitionLink> |
| </linkbase> |