The undersigned Directors of Paychex, Inc., do hereby constitute and appoint Martin Mucci their true and lawful attorney and agent, to execute the Paychex, Inc., Annual Report on Form 10-K for the fiscal year ended May 31, 2011, for us and in our names as Directors, to comply with the Securities Exchange Act of 1934, as amended, and the rules, regulations and requirements of the Securities and Exchange Commission, in connection therewith.
Dated: July 6, 2011
  /s/ B. Thomas Golisano    
B. Thomas Golisano
Dated: July 6, 2011
  /s/ Joseph G. Doody    
Joseph G. Doody
Dated: July 6, 2011
  /s/ David J. S. Flaschen    
David J. S. Flaschen
Dated: July 6, 2011
  /s/ Grant M. Inman    
Grant M. Inman
Dated: July 6, 2011
  /s/ Pamela A. Joseph    
Pamela A. Joseph
Dated: July 6, 2011
  /s/ Joseph M. Tucci    
Joseph M. Tucci
Dated: July 6, 2011
  /s/ Joseph M. Velli    
Joseph M. Velli