Exhibit 32.1
CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
as adopted pursuant to
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Annual Report of Irwin Financial Corporation (the
“Company”) on Form
10-K for the year ended
December 31, 2007 as filed with the Securities and Exchange Commission on
the date hereof, (the
“Report”), I,
William I. Miller, Chief Executive Officer, Chairman and
President, hereby certify, to the best of my knowledge and belief, pursuant to 18 U.S.C. Section
1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:
(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the
Securities Exchange Act of 1934, as amended; and
(2) the information contained in the Report fairly presents, in all material respects, the
financial condition and results of operations of
the Company.
