To cancel a USPS PO Box, either sign in to your account at the PO Boxes Online portal and use the “Close/Request Refund” link, or go to the Post Office where the box is located and tell the clerk you want to close it. Either way, you’ll need to return your keys in person to get your key deposit back, and you should turn off auto-pay and file a change of address before the closure takes effect.
The Two Ways to Close the Box
The in-person route is the cleanest. Bring all your keys and a valid photo ID to the Post Office that hosts your box. The retail associate verifies the account, takes the keys, processes the closure, and hands you a receipt. If a refund is due for unused rental time, you can take it in cash, by check, or by money order on the spot.
The online route works from anywhere. Sign in at the USPS PO Boxes Online portal, find your box in your account, and click “Close/Request Refund” next to it.1USPS. PO Boxes USPS will mail any refund as a check. The catch: you still have to return the keys to the Post Office to recover the key deposit. There’s no way to mail keys in for credit, so if you’ve moved far away and can’t get back, that deposit is gone.
Turn Off Auto-Pay Before the 14th
If you set up automatic payments when you opened the box, closing the box does not by itself guarantee the next charge won’t post. USPS requires you to cancel auto-pay no later than the 14th of the month before the next payment is due. Miss that cutoff and the payment goes through.2USPS. USPS POBOL Terms and Conditions
USPS drops a payment-due notice in the PO Box itself 20 calendar days before billing. That’s useless if you’ve already stopped checking the box, which is exactly the situation most people are in when they’re closing it. Log in to the portal and disable auto-pay first, then process the closure.
Getting Your Prorated Refund
USPS refunds the unused portion of your rental period when you close the box, calculated in full unused months. Pay for a year, close after four months, and you get eight months back. Partial months don’t count.
In-person closures pay out immediately in your choice of cash, check, or money order. Online closures generate a mailed check with no published timeline.3USPS. Request a Domestic Refund If getting the money quickly matters, the counter is the better route.
Keys, Deposits, and Replacement Fees
USPS collects a $5.50 key deposit per key when you open a box. You get that deposit back only by handing the keys back in person at the Post Office. A lost key costs $13 to replace before you can close cleanly. Lose both keys and USPS charges a $27 lock replacement fee.4Postal Explorer. Domestic – PO Box Service
Simply walking away and letting the box lapse is the expensive option. USPS ended its extended grace period for late PO Box payments in March 2023, so a missed renewal can trigger termination fairly quickly.5United States Postal Service. Policies, Procedures, and Forms Updates When the box is terminated for non-payment, you lose the deposit, you can be charged the $27 lock fee, and any mail arriving afterward is returned to the sender or discarded depending on the class. Formally closing the box, even if it means one extra trip, keeps you in control of the money and the mail.
Where Your Mail Goes After You Close the Box
Once the box is closed, mail addressed to it doesn’t linger. What actually happens depends on whether you filed a Change of Address and what kind of mail is arriving.
File a COA (online at USPS.com or at any Post Office), and First-Class Mail forwards to your new address for 12 months. Periodicals like magazines and newsletters forward for 60 days.6USPS. Mail Forwarding Options You can pay to extend First-Class forwarding for an additional 6, 12, or 18 months beyond the first year.7USPS. Standard Forward Mail and Change of Address
Plenty doesn’t forward. USPS Marketing Mail — catalogs, flyers, promotional pieces — is discarded absent a sender endorsement requesting otherwise. Certain package services and bound printed matter are handled the same way.8Postal Explorer. 507 Mailer Services Skip the COA and almost everything goes back to sender or into the trash. File the change of address before you close the box, and treat the forwarding window as a buffer while you notify senders directly.
Update Your Address With the IRS and Other Senders
An old PO Box on file with the IRS or your bank can quietly cost you. Missing a tax notice or a legal filing deadline because it went to a closed address is expensive to unwind.
For personal taxes, note the new address on your next return or file IRS Form 8822. Businesses with an EIN file Form 8822-B.9Internal Revenue Service. About Form 8822-B, Change of Address or Responsible Party – Business If your business listed the PO Box as its registered address with the state Secretary of State, file the required address change there too; forms vary by state, and a stale registered address can put a business out of good standing.
Then work through the rest: banks, credit cards, insurance policies, medical providers, subscriptions. Every piece of forwarded mail is a sender you still need to update.
Closing a PO Box for a Deceased Family Member
If the box belonged to someone who has died, closing it takes more paperwork than a standard cancellation. Go to the Post Office in person with documentation showing you’re the appointed executor or administrator authorized to manage the deceased person’s mail. A death certificate on its own is not enough; USPS specifically wants proof of legal authority, such as letters testamentary or a court order.10USPS. How to Stop or Forward Mail for the Deceased While there, you can file a COA to forward First-Class Mail to your own address for 12 months and periodicals for 60 days, which helps catch financial statements, tax documents, and legal notices before they bounce.