Amendment to Annual Report (Form 10-K/A)

This Amendment No. 1 to the Annual Report on Form (this "Amendment") amends the Annual Report on Form for the fiscal year ended June 30, 2025, originally filed on September 11, 2025 (the "Original Filing"), by IF Bancorp, Inc., a Maryland corporation ("IF Bancorp" or the "Company"). The Company is filing this Amendment to present the information required by Part III of Form as the Company will not file a definitive annual proxy statement within 120 days of the end of its fiscal year ended June 30, 2025.

Pursuant to Rule under the Securities Exchange Act of 1934, as amended, this Amendment also contains new certifications by the principal executive officer and the principal financial officer as required by Section 302 of the Sarbanes-Oxley Act of 2002. Accordingly, Item 15(a)(3) of Part IV is amended to include the currently dated certifications as exhibits. Because no financial statements have been included in this Amendment and this Amendment does not contain or amend any disclosure with respect to Items 307 and 308 of Regulation paragraphs 3, 4 and 5 of the certifications have been omitted.

Except as described above or as expressly noted in this Amendment, no other changes have been made to the Original Filing. The Original Filing continues to speak as of and for the periods covered in the Original Filing, and the Company has not updated the disclosures contained therein to reflect any subsequent events.

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