The IRS has announced that beginning January 1, 2022, it will close several individual payment P.O. boxes in the San Francisco, CA and Hartford, CT areas. These P.O. boxes are also called lockbox addresses. Payments mailed to these closed locations after January 1 will be returned to the sender.
If you have pre-printed mailing labels for one of these payment addresses, the IRS recommends destroying them now. Also advise clients to avoid mailing anything to these addresses. For a listing of active IRS addresses, go to: