v3.26.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Feb. 20, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K/A    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 1-32961    
Entity Registrant Name CBIZ, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 22-2769024    
Entity Address, Address Line One 5959 Rockside Woods Blvd. N.    
Entity Address, Address Line Two Suite 600    
Entity Address, City or Town Independence,    
Entity Address, State or Province OH    
Entity Address, Postal Zip Code 44131    
City Area Code 216    
Local Phone Number 447-9000    
Title of 12(b) Security Common Stock, $0.01 Par Value    
Trading Symbol CBZ    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 3,830.6
Entity Common Stock, Shares Outstanding   55,073,267  
Documents Incorporated by Reference The registrant incorporates by reference in Part III hereof portions of its definitive Proxy Statement for its 2026 Annual Meeting of Stockholders.    
Amendment Flag true    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000944148    
Amendment Description CBIZ, Inc. (the “Company”) is filing this Amendment No. 2 on Form 10-K/A (this “Amendment No. 2”) to amend and restate its Annual Report on Form 10-K for the period ended December 31, 2025, originally filed with the Securities and Exchange Commission (“SEC”) on February 26, 2026 and as amended by Amendment No. 1 on Form 10-K/A on March 2, 2026 (collectively, the “Original Form 10-K”) to make certain changes as described below.Subsequent to the filing of the Original Form 10-K, management identified material weaknesses in internal control over financial reporting relating to the administration of the Company’s 2007 Employee Stock Purchase Plan (as amended from time to time, the “ESPP”) and the Company’s reassignment of goodwill among reporting units. Notwithstanding the identified material weaknesses, management believes the consolidated financial statements contained in the Original Form 10-K fairly present, in all material respects, the financial condition, results of operations and cash flows of the Company for all periods presented in accordance with accounting principles generally accepted in the United States, and that such material weaknesses did not result in any change to the Company’s consolidated financial statements as set forth in the Original Form 10-K. Accordingly, this Amendment No. 2 is being filed to amend the following items of the Original Form 10-K with respect to the aforementioned material weakness, with each item being restated in its entirety:•Forward-Looking Statements•Item 1A. Risk Factors•Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters, and Issuer Purchases of Equity Securities •Item 8. Financial Statements and Supplementary Data•Item 9A. Controls and ProceduresAlso, as part of this Amendment No. 2 and as previously announced in the Company’s Form 10-Q for the quarter ended March 31, 2026, the Company completed during the first quarter of 2026 certain organizational changes which resulted in a change to the Company’s presentation of reportable segments. The Company is now recasting in this Amendment No. 2 segment reporting information previously presented in the Original Form 10-K to account for the revision of the Company’s segment reporting structure from three to two reportable segments. The National Practices reportable segment, which consisted of a single reporting unit, was combined with a reporting unit included in the Financial Services practice group to better align the Company’s current internal management information reviewed by the Company’s chief operating decision maker and reporting structure with the services provided. As a result of these changes, the Company now operate with two reportable segments: Financial Services and Benefits and Insurances Services. All subsequent periodic reports will report two segments, with prior periods adjusted accordingly. The recast of segment reporting information impact the following items of the Original Form 10-K:•Item 1. Business•Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations•Item 8. Financial Statements and Supplementary DataSEC rules require that when a registrant prepares, on or after the date a registrant reports an accounting change such as the change in segment reporting described above, a new registration, proxy, or information statement (or amends a previously filed registration, proxy, or information statement) that includes or incorporates by reference financial statements, the registrant must recast the prior period financial statements included or incorporated by reference in the registration, proxy, or information statement to reflect these types of changes. Accordingly, the Company is including in this Amendment No. 2 the Company’s recasted audited consolidated financial statements reported in the Original Form 10-K to reflect the segment reporting changes described above. The information included in this Amendment No. 2 does not amend or restate the Company’s audited consolidated financial statements included in the Original Form 10-K.Except as described above and to update the Report of Independent Registered Public Accounting Firm of KPMG LLP to express an adverse opinion by KPMG LLP on the effectiveness of the Company’s internal control over financial reporting as of December 31, 2025 associated with the material weaknesses, this Amendment No. 2 does not update or amend the Original Form 10-K to give effect to any subsequent events beyond those that existed as of the Original Form 10-K filing date. This Amendment No. 2 should be read in conjunction with the Company’s other filings with the SEC subsequent to the Original Form 10-K, together with any amendments to those filings. Other than as described above, this Amendment No. 2 does not modify or update the disclosure in the Original Form 10-K in any way. As required by Rule 12b-15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), this Amendment No. 2 contains new certifications by the Company’s principal executive officer and principal financial officer, which are being filed as exhibits to this Amendment No. 2.In addition, the Company concluded that, as a result of the purchase and delivery of certain shares of common stock relating to the ESPP as described in Item 5 in this Amendment No. 2, immaterial revisions should be made to the Company’s historical condensed consolidated financial statements for the quarter ended March 31, 2026. Accordingly, the Company will revise the previously issued interim financial information for the three months ended March 31, 2026 in the Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2026.