AUTOMATIC DATA PROCESSING INC — Director's Dealing 2005

Nov 14, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AUTOMATIC DATA PROCESSING INC (ADP)
CIK: 0000008670
Period of Report: 2005-11-10

Reporting Person: DYKSTRA KAREN E (Corporate Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-11-10	Common Stock	S	4000	$47.5000	Disposed	47647.8220	Direct
2005-11-10	Common Stock	S	1200	$47.5100	Acquired	48847.8220	Direct
2005-11-10	Common Stock	S	300	$47.5200	Acquired	49147.8220	Direct
2005-11-14	Common Stock	M	10300	$32.2450	Acquired	59447.8220	Direct
2005-11-14	Common Stock	M	6000	$37.8100	Acquired	65447.8220	Direct
2005-11-14	Common Stock	M	13000	$38.1100	Acquired	78447.8220	Direct
2005-11-14	Common Stock	S	7000	$47.5557	Disposed	71447.8220	Direct
2005-11-14	Common Stock	S	3300	$47.5200	Disposed	68147.8220	Direct
2005-11-14	Common Stock	S	6000	$47.4910	Disposed	62147.8220	Direct
2005-11-14	Common Stock	S	13000	$47.4008	Disposed	49147.8220	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-11-14	Stock Option (Right to Buy)	$	M	10300	Disposed	1988-08-08	Common Stock (10300.0000)	Direct
2005-11-14	Stock Option (Right to Buy)	$	M	13000	Disposed	1988-08-08	Common Stock (13000.0000)	Direct
2005-11-14	Stock Option (Right to Buy)	$37.8100	M	6000	Disposed	2013-08-10	Common Stock (6000.0000)	Direct

Footnotes

F1: Exerciseable price varies

F2: Will vest equally over 5 years