Aflac Incorporated 2022 Form 10-K

EXHIBIT 23

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (No. 333-237969, 333-242390, and 333-259379) on Form S-3; and No. 333-115105, 333-135327, 333-158969, 333-161269, 333-202781, 333-219888, and 333-245702 on Form S-8 of our reports dated February 23, 2023, with respect to the consolidated financial statements of Aflac Incorporated and the effectiveness of internal control over financial reporting.

/s/ KPMG LLP

Atlanta, Georgia

February 23, 2023