USPS Form 1583 is the Postal Service’s application for delivery of mail through an agent. Virtual mailbox providers require it because postal rules require it. The form authorizes the provider to accept your mail and documents who you are, so everyone involved stays within the rules.
What USPS Form 1583 Is
USPS Form 1583 is officially titled the Application for Delivery of Mail Through Agent. In plain terms, it is a signed agreement that lets a business, called the agent, receive mail for you. For a virtual mailbox, the agent is your provider, which the form calls a commercial mail receiving agency. You also tell the form whether the mailbox is for business or personal use, and that choice decides who signs and how many forms are needed.
The form runs two pages. Page one collects the details: mailbox information, the type of service, your information, any authorized individual, a forwarding address, business details, and your IDs. Page two holds the instructions, definitions, agreement terms, and a notary section.
What You Fill Out and What the Provider Fills Out
The provider completes its own address and your mailbox number, plus its witness signature if it observes you signing. You complete everything else. Expect to provide:
- Your name, phone number, email address, and home address
- Whether the mailbox is for business or personal use
- Details for one government-issued photo ID and one document that confirms your address
- Any authorized individual who may collect your mail
- A forwarding address, if you want mail sent elsewhere
- Business details and an officer’s signature, for business use
The authorized individual line is useful if a partner, assistant, or family member will collect your mail. Whoever you name needs two types of ID as well. Write your name the same way on the form and on your IDs, since small differences invite questions.
Why Providers Require It
The short answer is that the Postal Service requires it. The form says the provider uploads the signed original to the Postal Service’s CMRA Customer Registration Database and keeps a copy on site for examination by the postmaster or the Postal Inspection Service. If an agency does not comply, its mail can be withheld until it fixes the problem.
The form also sets ground rules. Neither you nor the provider may file a change of address with USPS when the agency relationship ends. Forwarded mail must carry new postage, and the provider must give USPS every address it transfers mail to. The privacy statement adds that USPS uses your information to verify your identity and to make sure mail reaches the correct recipient. When any required information changes, you must file an updated application.
Tips for Filling It Out Smoothly
Most delays come from small mismatches, so slow down and check the details. The address you write on the form must match the address on your address document. A driver’s license or nondriver ID can serve as your photo ID or your address ID, but not both, so bring a second document such as a lease or insurance policy if you use it as your photo ID.
Sign in the right setting: in front of the provider, in its live audio and video presence, or before a notary. Attach copies of your photo and address documents. For business use, an officer signs and adds a title, and the form lists the members who will receive mail, each of whom must show two valid IDs on request. For personal use, each adult needs a separate form.
Keep a copy for your records, and update the form if your details change. Careful preparation makes this one of the quicker parts of getting started. This article is general information, not legal advice.
USPS Form 1583 FAQs
Does Everyone Using the Mailbox Need Their Own Form?
For personal use, each adult needs a separate form. For business use, one form lists the members who will receive mail.
Can I Sign Form 1583 Remotely?
Often yes. The form allows signing in the live audio and video presence of the provider or a notary, but ask your provider which method it supports.
What Happens if My Information Changes?
You must file an updated application with your provider when information on the form changes or becomes outdated.