PAYCHEX INC New Standards Disclosure

Recently adopted accounting pronouncements: Effective for the Company's Annual Report on Form 10-K for fiscal 2026, the Company adopted Accounting Standard Update ("ASU") No. 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” using a retrospective application approach. The requirements of this ASU are disclosure-related and do not have an impact on the Company’s financial condition, results of operations, or cash flows. The ASU requires additional detail in the income tax rate reconciliation, including quantitative thresholds for reconciling items, and mandates disaggregation of income taxes paid among federal, state, and foreign jurisdictions, with further breakdowns for significant individual jurisdictions. Refer to Note L of the Notes to Consolidated Financial Statements included in Item 8 of this Form 10-K for additional information regarding income taxes.

Recently issued accounting pronouncements: In November 2024, the FASB issued ASU No. 2024-03 “Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” ASU No. 2024-03 as amended by subsequent ASUs on the topic requires public business entities to disclose, for interim and annual reporting periods, additional information about certain income statement expense categories. The requirements are effective for annual reporting periods beginning after December 15, 2026, and for interim periods within annual reporting periods beginning after December 15, 2027. Entities are permitted to apply either the prospective or retrospective transition methods. This ASU is applicable to the Company’s Annual Report on Form 10-K for the fiscal year ending May 31, 2028, and subsequent interim periods, with early application permitted. The requirements of this ASU are disclosure-related and will not have an impact on the Company’s financial condition, results of operations, or cash flows. The Company is currently evaluating the impact of adopting this ASU on its disclosures.

In July 2025, the FASB issued ASU No. 2025-05 “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets,” which introduces a practical expedient for the application of the current expected credit loss model to current accounts receivable and contract assets. The practical expedient permits an entity to assume that conditions at the balance sheet date remain unchanged over the life of the asset. This ASU is effective for annual periods beginning after December 15, 2025, and interim periods within those annual reporting periods. The transition method is prospective. The Company will adopt this guidance in its fiscal year beginning June 1, 2026, and will elect the practical expedient. The adoption of this guidance will not have a material impact on the Company's consolidated financial statements.

In September 2025, the FASB issued ASU No. 2025-06 “Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software.” This ASU updates the cost capitalization threshold for internal-use software development costs by removing all references to software project development stages and providing new guidance on how to evaluate whether the probable-to-complete recognition threshold has been met. This ASU is effective for annual periods beginning after December 15, 2027, and interim periods within those annual reporting periods. This ASU is applicable to the Company’s fiscal year beginning June 1, 2028, with early application permitted. The transition method may be prospective, modified, or retrospective. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements and disclosures.

In November 2025, the FASB issued ASU No. 2025-08 “Financial Instruments – Credit Losses (Topic 326): Purchased Loans.” This ASU expands the population of acquired financial assets subject to the gross-up approach under Topic 326 whereby loans purchased without credit deterioration and deemed seasoned are recognized at their purchase price plus an allowance for expected credit losses. Purchased seasoned loans include all loans that are acquired in a business combination and loans acquired in an asset acquisition if purchased at least 90 days after origination and the acquirer was not involved in the origination of the loans. This ASU is effective for annual periods beginning after December 15, 2026, and interim periods within those annual reporting periods. This ASU is applicable to the Company’s fiscal year beginning June 1, 2027, with early application permitted. The transition method is prospective. The Company does not currently purchase financial assets within the scope of the ASU. Accordingly, the adoption of this guidance will not have a material impact on the Company's consolidated financial statements.