USPS Form 1583 Checklist

Enrolling at many private mailbox providers means completing USPS Form 1583 (or the agent’s current equivalent process). This checklist helps you prepare—download official forms only from USPS or your provider’s directed source.

Government photo ID that matches the applicant name
Secondary ID if the agent requires two forms
Business formation documents when mail is for an entity
Clear list of people authorized to pick up mail
Notary or in-person verification steps your CMRA specifies

See the full explainer: Form 1583 explained. For notary context, read notary public basics.

We do not process Form 1583 applications.

Capital Postal Mailbox publishes educational guides only and does not fulfill retail postal or shipping services.