PAR Technology (PAR) 8-K/A Financial Statements and Exhibits

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

PAR Technology Corporation

New Hartford, New York

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-228026 and 333-102197) and Form S-8 (No. 333-232589, 333-119828, 33-04968, 33-39784, 33-58110, 033-63095, 333-208063, 333-187246 and 333-137647) of PAR Technology Corporation of our report dated December 13, 2019, relating to the consolidated financial statements of AccSys, Inc., which appear in this Current Report on Form 8-K/A.

/s/ BDO USA, LLP

Tampa, FL

January 31, 2020