Document and Entity Information - USD ($) |
12 Months Ended | ||
|---|---|---|---|
May 31, 2026 |
Jun. 30, 2026 |
Nov. 28, 2025 |
|
| Cover [Abstract] | |||
| Document Type | 10-K | ||
| Document Annual Report | true | ||
| Document Fiscal Period Focus | FY | ||
| Current Fiscal Year End Date | --05-31 | ||
| Document Fiscal Year Focus | 2026 | ||
| Document Period End Date | May 31, 2026 | ||
| Document Transition Report | false | ||
| Entity File Number | 0-11330 | ||
| Entity Registrant Name | Paychex, Inc. | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Tax Identification Number | 16-1124166 | ||
| Entity Address, Address Line One | 911 Panorama Trail South | ||
| Entity Address, City or Town | Rochester | ||
| Entity Address, State or Province | NY | ||
| Entity Address, Postal Zip Code | 14625-2396 | ||
| City Area Code | 585 | ||
| Local Phone Number | 385-6666 | ||
| Title of 12(b) Security | Common Stock, $0.01 par value | ||
| Trading Symbol | PAYX | ||
| Security Exchange Name | NASDAQ | ||
| 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 [Flag] | false | ||
| Entity Shell Company | false | ||
| Entity Public Float | $ 35,959,981,648 | ||
| Entity Common Stock, Shares Outstanding | 355,682,860 | ||
| Documents Incorporated by Reference | Portions of the registrant’s definitive proxy statement to be issued in connection with its Annual Meeting of Stockholders to be held on or about October 15, 2026, to the extent not set forth herein, are incorporated by reference into Part III, Items 10 through 14, inclusive. |
||
| Amendment Flag | false | ||
| Entity Central Index Key | 0000723531 | ||
| Auditor Name | PricewaterhouseCoopers LLP | ||
| Auditor Location | Victor, New York | ||
| Auditor Firm ID | 238 | ||
| Auditor Opinion | Opinions on the Financial Statements and Internal Control over Financial Reporting We have audited the accompanying consolidated balance sheets of Paychex, Inc. and its subsidiaries (the "Company") as of May 31, 2026 and 2025, and the related consolidated statements of income and comprehensive income, of stockholders’ equity and of cash flows for each of the three years in the period ended May 31, 2026, including the related notes and financial statement schedule listed in the accompanying index (collectively referred to as the "consolidated financial statements"). We also have audited the Company's internal control over financial reporting as of May 31, 2026, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of May 31, 2026 and 2025, and the results of its operations and its cash flows for each of the three years in the period ended May 31, 2026 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of May 31, 2026, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO. |