Automatic Data Processing (ADP) DEFA14A Additional proxy soliciting materials

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 [X]
Filed by a Party other than the Registrant [   ]
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[   ]	Preliminary Proxy Statement
[   ]	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
[   ]	Definitive Proxy Statement
[X]	Definitive Additional Materials
[   ]	Soliciting Material Pursuant to §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)

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*** Exercise Your Right to Vote ***
Important Notice Regarding the Availability of Proxy Materials for the
Stockholder Meeting to Be Held on November 11, 2020.

AUTOMATIC DATA PROCESSING, INC.

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

Meeting Information
Meeting Type:	Annual Meeting
For holders as of:	September 14, 2020
Date: November 11, 2020        Time: 10:00 a.m.

Location:    Meeting live via the Internet-please visit
www.virtualshareholdermeeting.com/ADP2020

The company will be hosting the meeting live via the Internet this year. To attend the meeting via the Internet please visit www.virtualshareholdermeeting.com/ADP2020 and be sure to have the information that is printed in the box marked by the arrow ➔ XXXX XXXX XXXX XXXX (located on the following page).

You are receiving this communication because you hold shares in the company named above.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

— Before You Vote —
How to Access the Proxy Materials

Proxy Materials Available to VIEW or RECEIVE:

COMBINED DOCUMENT CONTAINING NOTICE OF 2020 ANNUAL MEETING OF STOCKHOLDERS, PROXY STATEMENT AND ANNUAL REPORT ON FORM 10-K.

How to View Online:

Have the information that is printed in the box marked by the arrow ➔ XXXX XXXX XXXX XXXX (located on the following page) and visit: www.proxyvote.com.

How to Request and Receive a PAPER or E-MAIL Copy:

If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:

1) BY INTERNET:	www.proxyvote.com
2) BY TELEPHONE:	1-800-579-1639
3) BY E-MAIL*:	sendmaterial@proxyvote.com

* If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow ➔ XXXX XXXX XXXX XXXX (located on the following page) in the subject line.

Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before October 28, 2020 to facilitate timely delivery.

— How To Vote —
Please Choose One of the Following Voting Methods

Vote By Internet:

Before The Meeting:

Go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow ➔ XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions.

During The Meeting:

Go to www.virtualshareholdermeeting.com/ADP2020. Have the information that is printed in the box marked by the arrow ➔ XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Voting Items

The Board of Directors recommends a vote FOR the following nominees:
1.	Election of Directors
	1a.	Peter Bisson
	1b.	Richard T. Clark
	1c.	Linnie M. Haynesworth
	1d.	John P. Jones
	1e.	Francine S. Katsoudas
	1f.	Nazzic S. Keene
	1g.	Thomas J. Lynch
	1h.	Scott F. Powers
	1i.	William J. Ready
	1j.	Carlos A. Rodriguez
	1k.	Sandra S. Wijnberg

The Board of Directors recommends a vote FOR the following proposals:
2.	Advisory Vote on Executive Compensation.
3.	Ratification of the Appointment of Auditors.
The Board of Directors recommends a vote AGAINST the following proposal:
4.	Stockholder proposal, if properly presented at the meeting, to prepare a Report on Employee Representation on the Board of Directors.
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 adjournment thereof.