2024 Annual Report

2024 ANNUAL REPORT

A Breakthrough Year

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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FORM 10-K

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• ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2024

OR

• TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Securities registered pursuant to Section 12(g) of the Act: None

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Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued the audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ☒

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The aggregate market value of the voting and non-voting common stock held by non-affiliates of the registrant, computed by reference to the last sales price of such common stock as of the closing of trading on June 28, 2024, was approximately $3.67 billion.

The number of outstanding shares of the registrant's common stock was 53,758,439 as of February 21, 2025.

DOCUMENTS INCORPORATED BY REFERENCE

The registrant incorporates by reference in Part III hereof portions of its definitive Proxy Statement for its 2025 Annual Meeting of Stockholders.

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CBIZ, INC.

ANNUAL REPORT ON FORM 10-K

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024

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FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 (the "Securities Act") and Section 21E of the Securities Exchange Act of 1934 ("the Exchange Act"). All statements other than statements of historical fact included in this Annual Report on Form 10-K including, without limitation, "Business" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" regarding our financial position, business strategy and plans and objectives for future performance are forward-looking statements. You can identify these statements by the fact that they do not relate strictly to historical or current facts. Forward- looking statements are commonly identified by the use of such terms and phrases as "will," "could," "can," "may," "strive," "hope," "intend," "believe," "estimate," "continue," "plan," "expect," "project," "anticipate," "outlook," "foreseeable future," "seek" and words or phrases of similar import in connection with any discussion of future operating or financial performance. In particular, these include statements relating to future actions, future performance or results of current and anticipated services, sales efforts, expenses, and financial results.

From time to time, we may also provide oral or written forward-looking statements in other materials we release to the public. All of our forward- looking statements in this Annual Report on Form 10-K and in any other public statements that we make, are subject to certain risks and uncertainties that could cause actual results to differ materially from those projected. Such risks and uncertainties include, but are not limited to: payments on accounts receivable may be slower than expected, or amounts due on receivables or notes may not be fully collectible; we are dependent on the services of our executive officers, other key employees, producers and service personnel, the loss of whom may have a material adverse effect on our business, financial condition and results of operations; restrictions imposed by independence requirements and conflict of interest rules may limit our ability to provide services to clients of the attest firms with which we have contractual relationships and the ability of such attest firms to provide attestation services to our clients; our goodwill and intangible assets could become impaired, which could lead to material non-cash charges against earnings; certain liabilities resulting from acquisitions are estimated and could lead to a material impact on our results of operations; we may fail to realize the anticipated benefits of acquisitions, or they may prove disruptive and could result in the combined business failing to meet our expectations; our business could be adversely affected if Marcum LLP ("Marcum") does not perform to our expectations or we underestimate the liabilities we are assuming; recent Securities & Exchange Commission ("SEC") and Public Company Accounting Oversight Board ("PCAOB") sanctions against Marcum may adversely impact our performance and reputation; if we are unable to implement and maintain effective internal control over financial reporting following the Marcum acquisition (the "Transaction"), we may fail to prevent or detect material misstatements in our financial statements, in which case investors could lose confidence in the accuracy and completeness of our financial reports and the market price of our common stock may decline; we may not be able to acquire and finance additional businesses, which could limit our ability to pursue our business strategy; we will incur transaction, integration, and restructuring costs in connection with our acquisition program; governmental regulations and interpretations are subject to changes, which could have a material adverse effect on our financial condition; changes in the United States healthcare environment, including new healthcare legislation, may adversely affect the revenue and margins in our healthcare benefit business; we are subject to risks relating to processing customer transactions for our payroll and other transaction processing businesses; cyber-attacks or other security breaches involving our computer systems or the systems of one or more of our vendors could materially and adversely affect our business; we are subject to risk as it relates to software that we license from third parties; we are reliant on information processing systems and any failure or disruptions of these systems could have a material adverse effect on our business, financial condition and results of operations; we could be held liable for errors and omissions; the business services industry is competitive and fragmented, if we are unable to compete effectively, our business, financial condition and results of operations could be negatively impacted; given our levels of share- based compensation, our tax rate may vary significantly depending on our stock price; rapid technological changes could significantly impact our competitive position, client relationships and operating results and our ability to realize the anticipated benefits of the Transaction; climate change legislation or regulations restricting emissions of greenhouse gases could result in increased operating costs; the widespread outbreak of a communicable illness or any other public health crisis could adversely affect our business, financial condition and results of operations; we require a significant amount of cash for interest payments on our debt and to expand our business as planned; terms of our credit facility could adversely affect our ability to run our business and/or reduce stockholder returns; our failure to satisfy covenants in our debt instruments could cause a default under those instruments; our increased leverage following the Transaction may adversely impact our business; we may be more sensitive to revenue fluctuations than other companies, which could result in fluctuations in the market price of our common stock; the significant number of shares issuable as the stock consideration in the Transaction may adversely impact our stock price; the future issuance of additional shares could adversely affect the price of our common stock; there is

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