Go to https://portal.adp.com - a self service portal - to access its payroll services.
First time users have to register while frequent visitors need only their user login and password to avail of the benefits of the site, ipay, access benefits information, pay statements, etc.
Registering at the ADP portal comes with multiple benefits for for both the employers and employess - ensuring up to date financial information for both.
Go to www.portal.adp.com for logging and adp.com/solutions for more information on automated data processing.