UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the
Securities Exchange Act of 1934 (Amendment No. )

☑ Filed by the Registrant ☐ Filed by a party other than the Registrant      

CHECK THE APPROPRIATE BOX:
☐   Preliminary Proxy Statement
☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐ Definitive Proxy Statement
☑   Definitive Additional Materials
☐ Soliciting Material under §240.14a-12

Automatic Data Processing, Inc.

(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

PAYMENT OF FILING FEE (CHECK ALL BOXES THAT APPLY):
☑   No fee required
☐ Fee paid previously with preliminary materials
☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11


     
                                                                             
                                

AUTOMATIC DATA PROCESSING, INC.
1 ADP BOULEVARD
ROSELAND, NJ 07068

 
 

Your Vote Counts!

AUTOMATIC DATA PROCESSING, INC.

2026 Annual Meeting
November 11, 2026, 10:00 a.m.
www.virtualshareholdermeeting.com/ADP2026
Vote by November 10, 2026 11:59 PM EST


 
 
 
 
 
 
 

 
 
 
 
 
 
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You invested in AUTOMATIC DATA PROCESSING, INC. and it’s time to vote!
You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the stockholder meeting to be held on November 11, 2026.

Get informed before you vote
View the Combined Document containing the Notice of 2026 Annual Meeting of Stockholders, Proxy Statement and Annual Report on Form 10-K online OR you can receive a free paper or email copy of the material(s) by requesting prior to October 28, 2026. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy.

For complete information and to vote, visit www.ProxyVote.com

Control #


Smartphone users

Point your camera here and
vote without entering a
control number
                        
             
Vote Virtually at the Meeting*     
November 11, 2026
10:00 a.m., Eastern Standard Time


Virtually at:
www.virtualshareholdermeeting.com/ADP2026
       

* Please check the meeting materials for any special requirements for meeting attendance.



Vote at www.ProxyVote.com

THIS IS NOT A VOTABLE BALLOT

This is an overview of the proposals being presented at the
upcoming stockholder meeting. Please follow the instructions on
the reverse side to vote these important matters.




Voting Items

Board
Recommends

1. Election of Directors.
1a. Peter Bisson For     
1b. Maria Black For
1c. Linnie M. Haynesworth For
1d. Francine S. Katsoudas For
1e. Nazzic S. Keene For
1f. David W. Kenny For
1g. Karen S. Lynch For
1h. Thomas J. Lynch For
1i. Nancy McKinstry For
1j. Scott F. Powers For
1k. Carlos A. Rodriguez For
1l. Robert H. Swan For
1m. Sandra S. Wijnberg For
2. Advisory Vote on Executive Compensation. For
3. Ratification of the Appointment of Auditors. For
NOTE: Proxies, when properly executed, will be voted as directed, or if no direction is given, will be voted as the Board of Directors recommends. The proxies will vote in their discretion upon any and all other matters which may properly come before the meeting or any adjournments or postponements thereof.
 
 
 
 
 
 

Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”.


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