IF Bancorp (IROQ) 10-K 2017 FY Annual report

Exhibit 32.0

Section 1350 Certification of Chief Executive Officer and Chief Financial Officer

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADDED BY

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of IF Bancorp, Inc. (the “Company”) on Form 10-K for the period ended June 30, 2017 as filed with the Securities and Exchange Commission (the “Report”), the undersigned hereby certify, pursuant to 18 U.S.C. §1350, as added by § 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; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of and for the period covered by the Report.

/s/ Walter H. Hasselbring, III

Walter H. Hasselbring, III

President and Chief Executive Officer

/s/ Pamela J. Verkler

Pamela J. Verkler

Senior Executive Vice President and

Chief Financial Officer

September 11, 2017