Address Change for Service Fee Payments

The addresses for both ADP fees for service P.O. box and lockbox have changed. If  you mail in payment for WorkMarket fees for service invoices, please update your records with the information below. Payments sent to the old P.O. box or lockbox may be rejected. 

There is no change to our bank account number, routing number, or process for paying electronically. Only the mailing addresses are changing.

You can also find this information on your invoices; we began including it on your invoice in January 2024. 

New Addresses (effective immediately): 

Old Addresses	New Addresses
Old Payment Mailing Address: ADP, Inc. P.O. Box 842875 Boston, MA 02284-2875	New Payment Mailing Address:  ADP, Inc.  P.O. Box 830272 Philadelphia, PA 19182-0272
Old Overnight Payment Address: ADP, Inc. PNC Bank Attn: Lockbox 842875 20 Commerce Way, Ste 800 Woburn, MA 01801-1057	New Overnight Payment Address: ADP, Inc.  Lockbox 830272 525 Fellowship Road, Suite 330 Mt. Laurel, NJ 08054-3415

Please reach out to your WorkMarket representative with any questions you may have.