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We consent to the incorporation by reference in Registration Statement No. 333-227381 on Form S-3ASR and Registration Statement Nos. 333-174890, 333-174891 and 333-180926 on Form S-8 of our reports dated November 24, 2021, relating to the consolidated financial statements of Capitol Federal Financial, Inc. and subsidiary, and the effectiveness of Capitol Federal Financial, Inc.’s internal control over financial reporting appearing in this Annual Report on Form 10-K for the year ended September 30, 2021.