Organization - CBIZ, Inc. is a leading provider of financial, insurance and advisory services to businesses throughout the United States and parts of Canada. Acting through its subsidiaries, it has been serving small and medium-sized businesses, as well as individuals, governmental entities, and not-for-profit enterprises. CBIZ, Inc. manages and reports its operations along three practice groups: Financial Services, Benefits and Insurance Services and National Practices. A further description of products and services offered by each of the practice groups is provided in Note 21, Segment Disclosures, to the accompanying consolidated financial statements.

Basis of Presentation - The accompanying consolidated financial statements reflect the operations of CBIZ, Inc. and all of its wholly-owned subsidiaries (“CBIZ,” the “Company,” “we,” “us” or “our”), after elimination of all intercompany accounts and transactions. We have prepared the accompanying consolidated financial statements in accordance with GAAP and pursuant to the rules and regulations of the SEC.

We have determined that our relationship with certain CPA firms with whom we maintain ASAs qualify as variable interest entities. The accompanying consolidated financial statements do not reflect the operations or accounts of variable interest entities as the impact is not material to our consolidated financial condition, results of operations or cash flows.

Fees earned by us under the ASAs are recorded at net realizable value as a component of “Revenue” in the accompanying Consolidated Statements of Comprehensive Income and were approximately $159.4 million, $157.6 million and $154.0 million for the years ended December 31, 2020, 2019 and 2018, respectively, the majority of which was related to services rendered to privately-held clients. In the event that accounts receivable and unbilled work in process become uncollectible by the CPA firms, the service fee due to us is typically reduced on a

Use of Estimates - The preparation of consolidated financial statements in conformity with GAAP and pursuant to the rules and regulations of the SEC requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Management’s estimates and assumptions are derived from and are continually evaluated based upon available information, judgment and experience. Actual results may differ materially from these estimates.

Revenue Recognition - We account for revenue in accordance with Topic 606, Revenue from Contracts with Customers. We recognize revenue based on the five-step model; (i) identify the contract with the customer; (ii) identify the performance obligation in the contract; (iii) determine the contract price; (iv) allocate the transaction price; and (v) recognize revenue as each performance obligation is satisfied. If we determine that a contract with enforceable rights and obligations does not exist, revenues are deferred until all criteria for an enforceable contract are met. For further information on our various streams of revenue, refer to Note 2, Revenue, to the accompanying consolidated financial statements.

Operating Expenses - Operating expenses represent costs of service and other costs incurred to operate our business units and are primarily comprised of personnel costs and occupancy related expenses. Personnel costs include (i) salaries and benefits; (ii) commissions paid to producers; (iii) incentive compensation; and (iv) share-based compensation. Incentive compensation costs and share-based compensation are estimated and accrued. The final determination of incentive compensation is made after year-end results are finalized. The largest components of occupancy costs are rent expense and utilities. Base rent expense is recognized over respective lease terms, while utilities and common area maintenance charges are recognized as incurred.

Share-Based Compensation - The measurement of all share-based compensation arrangements is based on their respective grant date fair value. The grant date fair value of stock options is based on the Black-Scholes-Merton pricing model, which incorporates assumptions regarding the expected volatility, the expected option life, the risk-free interest rate and the expected dividend yield. The grant date fair value of restricted stock and restricted stock unit is based on the closing price of the underlying stock on the date of issuance. The grant date fair value of the performance share unit is based on the closing price of the underlying stock on the date of issuance and recorded based on achievement of target performance metrics. The expense related to stock options, restricted stock, and restricted stock units is recognized over the requisite service period which is generally three to four years. The expense related to performance share units is recorded over the three-year performance period based on the fair value on the grant date and adjusted each reporting period for the achievement of the performance metrics, based on our best estimate using available information.

Share-based compensation expense is recorded in the accompanying Consolidated Statements of Comprehensive Income as “Operating expenses” or “Corporate general and administrative expenses,” depending on where the respective individual’s compensation is recorded. For additional discussion regarding share-based awards, refer to Note 14, Employee Share Plans, to the accompanying consolidated financial statements.

Operating Leases – We determine if a contract is a lease at inception. We have leases for office space and facilities, automobiles, and certain information technology equipment. Certain of these leases include options to extend the lease and some include options to terminate the lease early. Effective January 1, 2019, we adopted the New Lease Standard using the modified retrospective method of applying the new standard at the adoption date. Under the New Lease Standard, all of our leases are classified as operating leases and the majority of which are for office space and facilities. The ROU assets and lease liabilities are recognized as of the commencement date based on the present value of the lease payments over the lease term. The lease term may include the options to extend or terminate the lease when it is reasonably certain that we will exercise the applicable option. Related rent expense under such leases is recognized evenly throughout the term of the lease when the total lease commitment is a known amount, and recorded on an as incurred basis when future rent payment increases under the obligation are

unknown due to rent escalations being tied to factors that are not currently measurable (such as increases in the consumer price index). Differences between rent expense recognized and the cash payments required under these leases are recorded as a component of “Operating lease liability” in the Non-current liabilities section of the accompanying Consolidated Balance Sheets. We may receive incentives to lease office facilities in certain areas. Such incentives are recorded as a change in lease payments and may require us to remeasure the lease liability to reflect the change in lease payments.

Restricted Cash - Restricted cash consists of funds held by us in relation to our capital and investment advisory services as those funds are restricted in accordance with applicable Financial Industry Regulatory Authority regulations. Restricted cash also consists of funds on deposit from clients in connection with the pass-through of insurance premiums to the carrier with the related liability for these funds recorded in “Accounts payable” in the accompanying Consolidated Balance Sheets.

Accounts Receivable and Allowance for Doubtful Accounts - Accounts receivable, less allowances for doubtful accounts, reflects the net realizable value of receivables and approximates fair value. Unbilled revenues are recorded at estimated net realizable value. Assessing the collectability of receivables (billed and unbilled) requires management judgment based on a combination of factors. When evaluating the adequacy of the allowance for doubtful accounts and the overall probability of collecting on receivables, we analyze historical experience, client credit-worthiness, the age of the trade receivable balances, current economic conditions that may affect a client’s ability to pay and current and projected economic trends and conditions at the balance sheet date. At December 31, 2020 and 2019, the allowance for doubtful accounts was $14.9 million and $14.4 million, respectively, in the accompanying Consolidated Balance Sheets.

Funds Held for Clients and Client Fund Obligations - Services provided by our payroll operations include the preparation of payroll checks, federal, state, and local payroll tax returns, and flexible spending account administration. In relation to these services, as well as other similar service offerings, we collect funds from our clients’ accounts in advance of paying client obligations. These funds, collected before they are due, are segregated and invested in accordance with our investment policy, which requires all investments carry an investment grade rating at the time of initial investment. These investments, primarily consisting of corporate and municipal bonds and U.S. treasury bills, are classified as available-for-sale and are included in the “Funds held for clients” line item on the accompanying Consolidated Balance Sheets. The underlying obligation is recorded as “Client fund obligation” on the Consolidated Balance Sheets. The balances in these accounts fluctuate with the timing of cash receipts and the related cash payments and may vary significantly during the year based on the timing of client’s payroll periods. Other than certain federal and state regulations pertaining to flexible spending account administration, there are no regulatory or other contractual restrictions placed on these funds. Refer to Note 6, Financial Instruments, to the accompanying consolidated financial statements for further discussion of investments related to funds held for clients.

Leasehold improvements are amortized using the straight-line method over the shorter of their estimated useful lives or the remaining respective lease term. The cost of software purchased or developed for internal use is capitalized and amortized using the straight-line method over an estimated useful life not to exceed seven years. We periodically review long-lived assets for impairment whenever events or changes in business circumstances

Goodwill and Other Intangible Assets - Goodwill represents the excess of the purchase price of the acquired businesses and the related fair value of the net assets acquired. At December 31, 2020, the carrying value of goodwill totaled $683.1 million, compared to total assets of $1.5 billion and total shareholders’ equity of $702.6 million. Intangible assets consist of identifiable intangibles other than goodwill. Identifiable intangible assets other than goodwill include client lists and non-compete agreements which require significant judgments in determining the fair value. We carry client lists and non-compete agreements at cost, less accumulated amortization, in the accompanying Consolidated Balance Sheets.

Goodwill is reviewed for impairment annually during the fourth quarter or more frequently in the event of an impairment indicator. We are required to consider whether it is more likely than not (defined as a likelihood of more than 50%) that the fair value of each reporting unit has fallen below its carrying value, thus requiring us to perform an interim goodwill impairment test. Intangible assets with definite lives, such as client lists and non-compete agreements, are amortized using the straight-line method over their estimated useful lives (generally ranging from two to fifteen years). We review these assets for impairment whenever events or changes in circumstances indicate an asset’s carrying value may not be recoverable. Recoverability is assessed based on a comparison of the undiscounted cash flows to the recorded value of the asset. If impairment is indicated, the asset is written down to its estimated fair value determined by a discounted cash flow analysis or market comparable method.

The goodwill impairment test is performed at a reporting unit level. A reporting unit is an operating segment of a business or one level below an operating segment. At December 31, 2020, we had five reporting units. We may use either a qualitative or quantitative approach when testing a reporting unit’s goodwill for impairment. Under the qualitative assessment, we are not required to calculate the fair value of a reporting unit unless we determine that it is more likely than not that its fair value is less than its carrying amount. If under the quantitative assessment the fair value of a reporting unit is less than its carrying amount, then the amount of the impairment loss, if any, must be measured. Any such impairment charge would reduce earnings and could be material.

After considering changes to assumptions used in our most recent quantitative testing for each reporting unit, including the capital market environment, economic and market conditions, industry competition and trends, our weighted average cost of capital, changes in management and key personnel, the price of our common stock, changes in our results of operations, the magnitude of the excess of fair value over the carrying amount of each reporting unit as determined in our most recent quantitative testing, and other factors, we concluded that it was more likely than not that the fair values of each of our reporting units exceeded their respective carrying values and, therefore, did not perform a quantitative impairment analysis. For further information regarding our goodwill balances, refer to Note 5, Goodwill and Other Intangible Assets, net, to the accompanying consolidated financial statements.

Income Taxes - Income taxes are provided for the tax effects of transactions reported in the consolidated financial statements and consist of taxes currently payable and deferred taxes. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis, and operating losses and tax credit carryforwards. State income tax credits are accounted for using the flow-through method.

A valuation allowance is provided when it is more-likely-than-not that all or some portion of a deferred tax asset will not be realized. We determine valuation allowances based on all available evidence. Such evidence includes historical results, the reversal of deferred tax liabilities, expectations of future consolidated and/or separate company profitability and the feasibility of tax-planning strategies. Determining valuation allowances includes significant judgment by management, and different judgments could yield different results.

Accounting for uncertain tax positions requires a more-likely-than-not threshold for recognition in the consolidated financial statements. We recognize a tax benefit based on whether it is more-likely-than-not that a tax position will be sustained. We record a liability to the extent that a tax position taken or expected to be taken on a tax return exceeds the amount recognized in the consolidated financial statements.

Business Combinations - We recognize and measure identifiable tangible and intangible assets acquired and liabilities assumed as of the acquisition date at fair value. Fair value measurements require extensive use of estimates and assumptions, including estimates of future cash flows to be generated by the acquired assets. The operating results of acquired businesses are included in our consolidated financial statements beginning on the date of acquisition. The purchase price is equivalent to the fair value of consideration transferred. Goodwill is recognized for the excess of purchase price over the net fair value of assets acquired and liabilities assumed.

Contingent Purchase Price Liabilities - Contingent purchase price liabilities consisting of cash payments and common stock issuances result from our business acquisitions and are recorded at fair value at the time of acquisition as “Contingent purchase price liability - current” and “Contingent purchase price liability - non-current” in the accompanying Consolidated Balance Sheets. We estimate the fair value of our contingent purchase price liabilities using a probability-weighted discounted cash flow model. We probability weight risk-adjusted estimates of future performance of acquired businesses, then calculate the contingent purchase price based on the estimates and discount them to present value representing management’s best estimate of fair value. The fair value of the contingent purchase price liabilities, which is considered a Level 3 unobservable input, is reassessed on a quarterly basis based on assumptions provided by practice group leaders and business unit controllers together with our corporate finance department. Any change in the fair value estimate, including the revaluation of common stock, is recorded in the earnings of that period. For the years ended December 31, 2020, 2019 and 2018, we recorded other income (expense) of $0.6 million, ($1.6) million and $(2.6) million, respectively, related to net changes in the fair value of contingent consideration.

Interest Rate Derivative Instruments - We maintain interest rate swaps that are designated as cash flow hedges to manage the market risk from changes in interest rates on our floating-rate debt under our $400.0 million unsecured credit facility, by and among CBIZ Operations, Inc., CBIZ, Inc. and Bank of America, N.A., as administrative agent and bank, and other participating banks (the “2018 credit facility”). The designation of a derivative instrument as a hedge and its ability to meet the hedge accounting criteria determine how we reflect the change in fair value of the derivative instrument. A derivative qualifies for hedge accounting treatment if, at inception, it meets defined correlation and effectiveness criteria. These criteria require that the anticipated cash flows and/or changes in fair value of the hedging instrument substantially offset those of the position being hedged.

We utilize derivative instruments to manage interest rate risk associated with our floating-rate debt under the credit facility. Interest rate swap contracts mitigate the risk associated with the underlying hedged item. If the contract is designated as a cash flow hedge, the mark-to-market gains or losses on the swap are deferred and included as a component of accumulated other comprehensive loss, net of tax, to the extent effective, and reclassified to interest expense in the same period during which the hedged transaction affects earnings. For further discussion regarding derivative financial instruments, refer to Note 6, Financial Instruments, to the accompanying consolidated financial statements.

Recent Accounting Pronouncements - The FASB ASC is the sole source of authoritative GAAP other than the SEC issued rules and regulations that apply only to SEC registrants. The FASB issues an ASU to communicate changes to the FASB codification. We assess and review the impact of all ASUs. ASUs not listed below were reviewed and determined to be either not applicable or are not expected to have a material impact on the consolidated financial statements.

Credit Losses: Effective January 1, 2020, we adopted Topic 326, which replaces the incurred loss model with an expected loss model that is referred to as the current expected credit loss model. The CECL model requires the Company to immediately recognize an estimate of credit losses that are expected to occur over the life of financial instruments recorded at amortized cost, including trade receivables.

For financial instruments recorded at amortized cost, we did not recognize a cumulative-effect adjustment to retained earnings as the adoption of Topic 326 did not have a material impact on our consolidated financial statements. For available-for-sale securities, the updated guidance was applied prospectively.

Fair Value Measurement: On January 1, 2020, we adopted ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement. This standard amends existing fair value measurement disclosure requirements by adding, changing, or removing certain disclosures. The adoption of this guidance did not have a material impact on our consolidated financial statements.

Income Taxes: On January 1, 2020, we adopted ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. The adoption of this guidance did not have a material impact on our consolidated financial statements.

Reference Rate Reform: In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments in this ASU are effective for all entities through December 31, 2022. We are currently evaluating the effect of this new standard on our consolidated financial statements.