| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<ownershipDocument> |
| <schemaVersion> X0206 </schemaVersion> |
| <documentType> 3 </documentType> |
| <periodOfReport> 2022-10-17 </periodOfReport> |
| <noSecuritiesOwned> 0 </noSecuritiesOwned> |
| <issuer> |
| | <issuerCik> 0000027996 </issuerCik> |
| | <issuerName> DELUXE CORP </issuerName> |
| | <issuerTradingSymbol> DLX </issuerTradingSymbol> |
| | </issuer> |
| <reportingOwner> |
| | <reportingOwnerId> |
| | | <rptOwnerCik> 0001950384 </rptOwnerCik> |
| | | <rptOwnerName> Zint William C </rptOwnerName> |
| | | </reportingOwnerId> |
| | <reportingOwnerAddress> |
| | | <rptOwnerStreet1> 801 MARQUETTE AVE. S. </rptOwnerStreet1> |
| | | <rptOwnerStreet2></rptOwnerStreet2> |
| | | <rptOwnerCity> MINNEAPOLIS </rptOwnerCity> |
| | | <rptOwnerState> MN </rptOwnerState> |
| | | <rptOwnerZipCode> 55402 </rptOwnerZipCode> |
| | | <rptOwnerStateDescription></rptOwnerStateDescription> |
| | | </reportingOwnerAddress> |
| | <reportingOwnerRelationship> |
| | | <isDirector> 0 </isDirector> |
| | | <isOfficer> 1 </isOfficer> |
| | | <isTenPercentOwner> 0 </isTenPercentOwner> |
| | | <isOther> 0 </isOther> |
| | | <officerTitle> SVP, Chief Financial Offier </officerTitle> |
| | | <otherText></otherText> |
| | | </reportingOwnerRelationship> |
| | </reportingOwner> |
| <nonDerivativeTable> |
| | <nonDerivativeHolding> |
| | | <securityTitle> |
| <value> Common Stock </value> |
| </securityTitle> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 5270 </value> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </nonDerivativeHolding> |
| | </nonDerivativeTable> |
| <derivativeTable> |
| | <derivativeHolding> |
| | | <securityTitle> |
| <value> Common Stock Option </value> |
| </securityTitle> |
| | | <conversionOrExercisePrice> |
| <value> 41.27 </value> |
| </conversionOrExercisePrice> |
| | | <exerciseDate> |
| <value> 2022-03-01 </value> |
| <footnoteId id="F1"/> |
| </exerciseDate> |
| | | <expirationDate> |
| <value> 2031-03-01 </value> |
| </expirationDate> |
| | | <underlyingSecurity> |
| <underlyingSecurityTitle> |
| <value> Common Stock </value> |
| </underlyingSecurityTitle> |
| <underlyingSecurityShares> |
| <value> 3906.0 </value> |
| </underlyingSecurityShares> |
| </underlyingSecurity> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </derivativeHolding> |
| | <derivativeHolding> |
| | | <securityTitle> |
| <value> Restricted Stock Unit </value> |
| </securityTitle> |
| | | <conversionOrExercisePrice> |
| <value> 0.0 </value> |
| </conversionOrExercisePrice> |
| | | <exerciseDate> |
| <value> 2021-08-14 </value> |
| <footnoteId id="F2"/> |
| </exerciseDate> |
| | | <expirationDate> |
| <value> 2023-08-14 </value> |
| </expirationDate> |
| | | <underlyingSecurity> |
| <underlyingSecurityTitle> |
| <value> Common Stock </value> |
| </underlyingSecurityTitle> |
| <underlyingSecurityShares> |
| <value> 9.0 </value> |
| </underlyingSecurityShares> |
| </underlyingSecurity> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </derivativeHolding> |
| | <derivativeHolding> |
| | | <securityTitle> |
| <value> Restricted Stock Unit </value> |
| </securityTitle> |
| | | <conversionOrExercisePrice> |
| <value> 0.0 </value> |
| </conversionOrExercisePrice> |
| | | <exerciseDate> |
| <value> 2022-03-01 </value> |
| <footnoteId id="F3"/> |
| </exerciseDate> |
| | | <expirationDate> |
| <value> 2025-03-01 </value> |
| </expirationDate> |
| | | <underlyingSecurity> |
| <underlyingSecurityTitle> |
| <value> Common Stock </value> |
| </underlyingSecurityTitle> |
| <underlyingSecurityShares> |
| <value> 1908.0 </value> |
| </underlyingSecurityShares> |
| </underlyingSecurity> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </derivativeHolding> |
| | <derivativeHolding> |
| | | <securityTitle> |
| <value> Restricted Stock Unit </value> |
| </securityTitle> |
| | | <conversionOrExercisePrice> |
| <value> 0.0 </value> |
| </conversionOrExercisePrice> |
| | | <exerciseDate> |
| <value> 2023-02-16 </value> |
| <footnoteId id="F3"/> |
| </exerciseDate> |
| | | <expirationDate> |
| <value> 2026-02-16 </value> |
| </expirationDate> |
| | | <underlyingSecurity> |
| <underlyingSecurityTitle> |
| <value> Common Stock </value> |
| </underlyingSecurityTitle> |
| <underlyingSecurityShares> |
| <value> 4625.0 </value> |
| </underlyingSecurityShares> |
| </underlyingSecurity> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </derivativeHolding> |
| | </derivativeTable> |
| <footnotes> |
| | <footnote id="F1"> Options vest in four equal installments on the four succeeding anniversary dates of the date of grant, provided the holder remains an employee of the Company. Date entered reflects date on which first installment vests. </footnote> |
| | <footnote id="F2"> Restricted stock units granted under the Company's Long-Term Incentive Plan that vest in equal one-third increments on the first three anniversaries of date of grant. Upon vesting, each unit is converted into a share of common stock. Subject to certain exceptions, vesting is contingent upon continued employment. </footnote> |
| | <footnote id="F3"> Restricted stock units granted under the Company's Long-Term Incentive Plan that vest in equal one-quarter increments on the first four anniversaries of date of grant. Upon vesting, each unit is converted into a share of common stock. Subject to certain exceptions, vesting is contingent upon continued employment. </footnote> |
| | </footnotes> |
| <remarks></remarks> |
| <ownerSignature> |
| | <signatureName> /s/ Ruth M. Timm, Attorney-in-Fact </signatureName> |
| | <signatureDate> 2022-10-17 </signatureDate> |
| | </ownerSignature> |
| </ownershipDocument> |