AUTOMATIC DATA PROCESSING INC — Director's Dealing 2004

Dec 10, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AUTOMATIC DATA PROCESSING INC (ADP)
CIK: 0000008670
Period of Report: 2004-12-09

Reporting Person: TAUB HENRY (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-12-09	Common Stock	S	10000	$44.7500	Disposed	5853288.3130	Direct
2004-12-09	Common Stock	S	10000	$44.9500	Disposed	5843288.3130	Direct
2004-12-09	Common Stock	S	10000	$45.0000	Disposed	5833288.3130	Direct
2004-12-09	Common Stock	S	2000	$45.0500	Disposed	5831288.3130	Direct
2004-12-09	Common Stock	S	300	$45.0700	Disposed	5830988.3130	Direct
2004-12-09	Common Stock	S	2400	$45.0800	Disposed	5828588.3130	Direct
2004-12-09	Common Stock	S	2500	$45.0900	Disposed	5826088.3130	Direct
2004-12-09	Common Stock	S	12300	$45.1000	Disposed	5813788.3130	Direct
2004-12-09	Common Stock	S	2200	$45.1300	Disposed	5811588.3130	Direct
2004-12-09	Common Stock	S	10500	$45.1400	Disposed	5801088.3130	Direct
2004-12-09	Common Stock	S	7800	$45.1500	Disposed	5793288.3130	Direct
2004-12-09	Common Stock	S	2100	$45.2000	Disposed	5791188.3130	Direct
2004-12-10	Common Stock	S	9500	$45.0000	Disposed	5781688.3130	Direct
2004-12-10	Common Stock	S	500	$45.0100	Disposed	5781188.3130	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	297600.0000	Indirect
Common Stock	16065.0000	Indirect