No — you can't reuse a shipping label that has already been scanned into the carrier network. Each shipping label is tied to a specific shipment and tracking number; once it's been accepted, reusing it creates a duplicate that the carrier's system rejects or misroutes. If a label was never used, you may be able to void and refund it, then create a new one — but you can't simply re-apply an old label to a new package.
This is different from reusing a shipping box, which is fine as long as you remove the old label. The label itself is single-use by design. See can two packages have the same shipping label for what happens when two packages carry the same barcode.
If you printed a label but never shipped the package, you can usually cancel and refund it — see can I cancel a shipment after it has been sent — and print a fresh one. But a label that's already been scanned is consumed and can't be reused.
What It Means
When a Label Is Reusable vs. Consumed
- Label printed, never scanned: you can void it and get a refund — see can a shipping label be cancelled — and create a new one. Physically re-applying an unused label risks a wrong label attached situation if the system flags it.
- Label scanned/accepted: consumed. Reusing it risks duplicate-tracking confusion — see can two packages have the same shipping label.
- Label used and package returned to you: the label is spent; create a new one for re-shipment.
Why You Can't Reuse a Scanned Label
Carriers tie each barcode to one shipment record. Scanning it again either errors out or, worse, updates the old (completed) shipment, hiding your new package's real status — see why was a new shipping label generated.
Why It Happens
Why Labels Are Single-Use
Shipping labels encode a unique tracking number, postage payment, and route. Once the carrier accepts the package, the postage is consumed and the tracking number is locked to that shipment. Reusing it would be like reusing a postage stamp after it's been cancelled — and it can create a wrong label attached or unreadable label exception at sorting.
How Long It Lasts
How Long an Unused Label Stays Valid
An unscanned label can stay valid for a while — see how long can a label exist before shipment — but most carriers void and refund unused labels automatically after a set period (often 28–45 days for USPS Click-N-Ship). After that, you must create a new one. See also why was a shipping label created but never shipped.
Should You Be Concerned?
Should You Be Concerned?
If you accidentally reused an old label, act fast — contact the carrier to intercept or correct before the package is delivered wrong. A reused scanned label can result in the package being delivered but not received, misdelivered, or marked with the old shipment's status. If the package is lost as a result, see our lost package reporting guide.
What You Can Do
What You Can Do
- If the label was never scanned: cancel it and print a new one.
- If you accidentally reused a scanned label: contact the carrier immediately to intercept — see can I stop a package already in transit.
- Always create a fresh label for every new shipment — never re-apply an old one.
- Reusing the box is fine — just remove old labels — see can I reuse a shipping box.
- If you no longer need to ship, void the label to get a postage refund.
When to Contact the Carrier
When to Contact the Carrier
Contact the carrier immediately if you suspect a label was reused on a package in transit — see can I stop a package already in transit. If the package is misdelivered or lost, follow our lost package reporting guide.