Do USPS Labels Expire?

USPS does not put a blanket expiration date on a shipping label. When you print one, you choose a Shipping Date, and USPS expects the package to be mailed on that date. A label mailed after its printed Shipping Date is what USPS calls stale, and USPS says a stale-dated package may be returned to you. The 28-day figure that shows up in most forum answers is a shipping-platform refund convention, not a USPS rule. The one label with a hard USPS deadline is the Click-N-Ship business return label, which must be used within 30 days of the ship date on the outbound label it was created with.

Where the "28 days" rule comes from

Search this question and nearly every answer says 28 or 30 days. None of them cite USPS, and USPS publishes no such number. It comes from shipping software. Pirate Ship, for example, automatically requests a refund on any USPS or UPS label that has no tracking updates 28 days after purchase, and its help docs describe that as the software's own behavior. Over time that platform behavior got repeated as postal policy.

The difference matters for two reasons. The date USPS cares about is the Shipping Date printed on your label, not a count of days since purchase. And the platform's auto-refund clock is not the same length as USPS's own refund window, which is covered below.

Can you still ship after the Shipping Date on the label?

USPS's published guidance is to mail the item on the Shipping Date you selected, because an electronic record is created for that label on that date. Packages with stale Shipping Dates may be returned to you. USPS does not publish a grace period.

If the package has not left yet, the safer path is to print a new label with today's date and request a refund on the original. When you need the package to leave on a specific day, schedule a USPS pickup for that date so the label date and the first scan line up.

How far ahead can you post-date a USPS label?

In Click-N-Ship, you can set the Shipping Date up to 7 days from today. That covers a weekend batch printed on Friday, or an order that is packed but cannot go out until midweek. Pick the date you will actually hand the package over. If the plan changes after you print, the fix is a new label with the right date and a refund request on the unused one.

Getting a refund on an unused USPS label

How long you have depends on where you bought the postage. Click-N-Ship and third-party shipping software run on different USPS refund rules, and the gap between them is 30 days.

The two routes also carry different conditions. USPS grants a Click-N-Ship refund only when its system shows no barcode scan event for the label and a refund has not already been requested or processed. For software postage, the provider decides against USPS criteria: the label must be unused, complete, and legible, the request goes in electronically rather than by mailing the label back, and once a refund is granted you have to destroy the original. That 30-day clock is written for postage with a tracking number, which covers every shipping label. Postage indicia printed without one fall under a separate 60-day rule that requires sending the physical indicia to the provider.

For a Click-N-Ship label within 30 days, log in, open Shipping History, check the labels you want refunded, and choose Refund Labels from the Track Labels dropdown. Between day 30 and day 60, the Help Desk email needs your username, Click-N-Ship account number, label number, and the transaction number and date. If you are new to the tool, what USPS Click-N-Ship covers explains the account and Shipping History side.

For a software label, the request goes to the provider, not to USPS. USPS says processing can take up to 14 days, and the credit can take up to two billing cycles to appear on your card statement.

Do prepaid return labels expire?

It depends on which return label you are holding. A Click-N-Ship business return label is tied to the outbound shipment, and USPS says it must be used within 30 days of the ship date on the label that carried the item to the customer. The shipper is charged for it only once it is used.

For merchant return labels issued through USPS Returns or Label Broker, USPS publishes no validity window on its Customer Returns page or in the Label Broker FAQ. Those services are priced per label scanned, so the merchant pays postage when the label is scanned, not when it is printed. Your shipping platform may add its own limit: Pirate Ship says its pay-on-use USPS return labels are valid for up to 90 days, and Shippo says its scan-based USPS return labels expire 365 days after they are created. The "one year" figure that circulates online is Shippo's term, not a USPS rule.

For the customer holding the label, the deadline that matters is the retailer's return window, or the label's own limit if the platform set a shorter one. State that date wherever the label is handed out, because the customer has no other way to know it.

Stale labels come from buying postage before the package is ready to leave. If Simpl's ecommerce fulfillment service handles your orders instead, postage is included in the flat per-order rate, and orders received before 12pm CT ship the same day by UPS, USPS, or FedEx.