CBIZ (CBZ) 10-K 2014 FY Annual report

Exhibit 23

Consent of Independent Registered Public Accounting Firm

The Board of Directors

CBIZ, Inc.:

We consent to the incorporation by reference in the registration statementsNos. 333-135912,333-76179,333-64109, and333-27825 onForm S-3;Nos. 333-90749,333-46687,333-40331, and333-15413 onForm S-3, as amended;Nos. 333-40313 and333-81039 onForm S-4, as amended; andNos. 333-145495,333-62148,333-74647,333-35049,333-176219, and 333-197284 onForm S-8 of CBIZ, Inc. of our reports dated March 12, 2015, with respect to the consolidated balance sheets of CBIZ, Inc. and subsidiaries as of December 31, 2014 and 2013, and the related consolidated statements of comprehensive income, stockholders’ equity, and cash flows for each of the years in thethree-year period ended December 31, 2014, and the effectiveness of internal control over financial reporting as of December 31, 2014, which reports appear in the December 31, 2014 Annual Report onForm 10-K of CBIZ, Inc.

/s/ KPMG LLP

Cleveland, Ohio

March 12, 2015