Tompkins Financial Corporation S-3

EXHIBIT 23.1

KPMG LLP

265 Clinton Square

Rochester, NY 14604-1701

Consent of Independent Registered Public Accounting Firm

We consent to the use of our reports dated February 29, 2024, with respect to the consolidated financial statements of Tompkins Financial Corporation and subsidiaries, and the effectiveness of internal control over financial reporting, incorporated herein by reference, and to the reference to our firm under the heading “Experts” in the prospectus.

Rochester, New York

July 26, 2024

KPMG LLP, a Delaware limited liability partnership and a member firm of
the KPMG global organization of independent member firms affiliated with
KPMG International Limited, a private English company limited by guarantee.