AUTOMATIC DATA PROCESSING INC — Director's Dealing 2005

Dec 13, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AUTOMATIC DATA PROCESSING INC (ADP)
CIK: 0000008670
Period of Report: 2005-12-13

Reporting Person: TAUB HENRY (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-12-13	Common Stock	S	23900	$46.2000	Disposed	5468417.3280	Direct
2005-12-13	Common Stock	S	3500	$46.4000	Disposed	5464917.3280	Direct
2005-12-13	Common Stock	S	1200	$46.4100	Disposed	5463717.3280	Direct
2005-12-13	Common Stock	S	400	$46.4200	Disposed	5463317.3280	Direct
2005-12-13	Common Stock	S	27000	$46.4000	Disposed	5436317.3280	Direct
2005-12-13	Common Stock	S	2200	$46.4100	Disposed	5434117.3280	Direct
2005-12-13	Common Stock	S	900	$46.4200	Disposed	5433217.3280	Direct
2005-12-13	Common Stock	S	2500	$46.4300	Disposed	5430717.3280	Direct
2005-12-13	Common Stock	S	500	$46.4400	Disposed	5430217.3280	Direct
2005-12-13	Common Stock	S	100	$46.4500	Disposed	5430117.3280	Direct
2005-12-13	Common Stock	S	800	$46.4600	Disposed	5429317.3280	Direct
2005-12-13	Common Stock	S	16700	$46.5000	Disposed	5412617.3280	Direct
2005-12-13	Common Stock	S	10600	$46.5100	Disposed	5402017.3280	Direct
2005-12-13	Common Stock	S	1700	$46.5200	Disposed	5400317.3280	Direct
2005-12-13	Common Stock	S	800	$46.5300	Disposed	5399517.3280	Direct
2005-12-13	Common Stock	S	3800	$46.5400	Disposed	5395717.3280	Direct
2005-12-13	Common Stock	S	800	$46.5500	Disposed	5394917.3280	Direct
2005-12-13	Common Stock	S	1700	$46.5600	Disposed	5393217.3280	Direct
2005-12-13	Common Stock	S	200	$46.5700	Disposed	5393017.3280	Direct
2005-12-13	Common Stock	S	300	$46.5800	Disposed	5392717.3280	Direct
2005-12-13	Common Stock	S	5200	$46.5900	Disposed	5387517.3280	Direct
2005-12-13	Common Stock	S	1700	$46.6000	Disposed	5385817.3280	Direct
2005-12-13	Common Stock	S	500	$46.6100	Disposed	5385317.3280	Direct
2005-12-13	Common Stock	S	3900	$46.6200	Disposed	5381417.3280	Direct
2005-12-13	Common Stock	S	600	$46.6300	Disposed	5380817.3280	Direct
2005-12-13	Common Stock	S	400	$46.6400	Disposed	5380417.3280	Direct
2005-12-13	Common Stock	S	16800	$46.6500	Disposed	5363617.3280	Direct
2005-12-13	Common Stock	S	300	$46.6700	Disposed	5363317.3280	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	297600.0000	Indirect
Common Stock	16065.0000	Indirect