Company: PAYX
Filing Date: 2025-03-31
Form Type: S-3ASR
Source: 0001193125-25-067979
Chunk: 28

Company: PAYCHEX INC
Filing Date: 2025-03-31
Form: S-3ASR
Chunk 28
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 and resubstitution for them and in their name, place, and stead in any and all capacities to sign any and all amendments (including post-effective amendments) to this registration statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-factand agents, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-factsand agents or any of them, or of their substitute or substitutes, may lawfully do to cause to be done by virtue hereof. Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

| Signature               
 /s/ John Gibson         
 John Gibson             
 /s/ Robert L. Schrader  
 Robert L. Schrader      |     | Title                                    
 President and Chief Executive            
 Officer, and Director (Principal         
 Executive Officer)                       
 Senior Vice President and                
 Chief Financial Officer                  
 (Principal Financial Officer)            |     | Date           
 March 31, 2025 
 March 31, 2025 |
|:------------------------|:----|:-----------------------------------------|:----|:---------------|
| /s/ Christopher Simmons 
 Christopher Simmons     |     | Vice President, Controller and Treasurer 
 (Principal Accounting Officer)           |     | March 31, 2025 |
| /s/ Martin Mucci        
 Martin Mucci            |     | Chairman of the Board                    |     | March 31, 2025 |
| /s/ Thomas F. Bonadio   
 Thomas F. Bonadio       |     | Director                                 |     | March 31, 2025 |
| /s/ Joseph G. Doody     
 Joseph G. Doody         |     | Director                                 |     | March 31, 2025 |

II-5

| Signature             
 /s/ Pamela A. Joseph  
 Pamela A. Joseph      
 /s/ Theresa M. Payton 
 Theresa M. Payton     |     | Title    
 Director 
 Director |     | Date           
 March 31, 2025 
 March 31, 2025 |
|:----------------------|:----|:---------|:----|:---------------|
| /s/ Kevin