Can I still use a label I printed weeks ago?
Often yes, since none of the three big carriers publishes a firm use-by date for a paid, unused label. You fall outside the USPS refund window after 30 days though, and outside every UPS void option after 180, so waiting quietly shrinks your fallbacks.
Can I get a refund on a label I never used?
USPS allows it within 30 days of printing for labels that were never scanned, per usps.com. UPS voids run out at 180 days. On our side, the terms say unused labels may be eligible for carrier void or postage refund only when the selected carrier allows it, and carrier decisions take time.
Does the ship date printed on a label matter?
Carriers pull the operative data from the barcode at the first scan, and none of the pages we checked ties acceptance to the printed date. Where the date really counts is refund math, which starts at label creation or printing.
What if my SMKlog label fails to generate at all?
Our terms cover that case head-on: we review the order and either issue the label, ask for corrected information, or refund the label payment when no label can be provided.
Do UPS labels expire, including return labels?
Not on a separate clock. UPS's void-a-shipment page and its how-to-return-a-package page, both checked 2026-08-27, apply the same 90-day self-service window and 180-day hard stop to a return label as to any other UPS-created label. Neither page treats a return label as a special case.
How long are FedEx labels good for?
It depends which kind. A printed FedEx return label keeps working while the account behind it stays in good standing, and an emailed one is retrievable for up to two years before printing, per fedex.com checked 2026-07-27. For an ordinary outbound label, FedEx publishes no matching window in the pages we checked, so there is no number to give: treat the label as fresh-is-best rather than something to bank for later.