What Is a Shipping Label and How Long Is It Valid?
Everything shoppers and small business owners need to know about shipping labels — what’s on them, how long they last by carrier, and what happens when one expires.
A shipping label is one of those things most people ignore until something goes wrong. You stick it on a box, drop it off, and forget about it — until your package gets stuck, your return gets rejected, or you discover the label you printed three weeks ago is no longer valid.
This guide covers what a shipping label actually contains, why labels expire, how long each major carrier’s labels stay valid in 2026, and what to do if yours has expired.
What Is a Shipping Label?
A shipping label is the printed document attached to the outside of a package that contains all the information a carrier needs to route and deliver it. It serves as the package’s identity card throughout its entire journey — from the moment it’s dropped off until it reaches its destination.
Every shipping label contains several key pieces of information:
Sender information: The name and address of whoever is shipping the package — either a retailer, a seller, or an individual. This is also where the package is returned if delivery fails.
Recipient information: The full delivery address including name, street address, apartment or unit number, city, state, and zip code. Errors here are the leading cause of delivery exceptions and failed deliveries.
Tracking number and barcode: The unique identifier that allows the package to be scanned at every checkpoint along its journey. This is what generates the tracking updates you see in your carrier’s app or website. For SpeedX shipments, this is the SPX number. For Amazon, it starts with TBA. For USPS, it’s a 20–22 digit string.
Service type: The shipping speed and service level — Priority Mail, Ground, Express, etc. This determines how the carrier prioritizes the package in their network.
Weight and dimensions: Used to calculate shipping rates and ensure the package is routed correctly through sorting equipment.
Special handling instructions: Fragile, this side up, signature required, and similar instructions appear as symbols or text on the label.
Postage or payment confirmation: Either a printed postage amount (for prepaid labels) or a billing indicator for account-based shipments.
Why Shipping Labels Expire
Labels don’t expire arbitrarily — there are real operational reasons carriers set validity windows:
Rate accuracy: Carrier rates change regularly. A label printed six months ago may reference outdated pricing or discontinued service tiers, creating billing discrepancies when it’s finally scanned.
Fraud prevention: Expiration dates prevent labels from being reused, duplicated, or used for shipments other than the one they were created for.
Inventory management: Carriers use the tracking number on each label to reserve space in their routing and sorting systems. Tracking numbers that stay open indefinitely create system overhead.
Address validation: Addresses and delivery routes change over time. An old label may reference a routing that’s no longer current in the carrier’s system.
Here’s something important that most people don’t know: labels don’t expire visually. They look fine. The barcode still scans. But the backend authorization voids, meaning the carrier blocks the shipment. You can drop off an expired label — but the package will usually get stuck in “Acceptance Pending” with no further movement.
How Long Is a Shipping Label Valid? By Carrier
USPS — 28 Days (Outbound), 365 Days (Return Labels)
USPS labels expire after 28 days from purchase. In practice, many sellers and shipping platforms report a usable window of about 28 days from purchase, after which the barcode may not scan properly at sorting facilities. Some local post offices apply a short grace period of a couple of days at their own discretion — but this is never guaranteed and shouldn’t be relied on.
USPS return labels are different: USPS scan-based return labels are valid for a full year. These work differently from outbound labels — postage is only charged when the label is actually scanned for the first time, not when it’s created. This makes them practical for retailers including return labels with orders.
Important 2025 change: USPS now applies a processing hold on refunds for unused outbound prepaid labels before issuing credit. The self-service refund window is still 30 days from the label print date, with a Help Desk option for labels up to 60 days old.
Best practice: Print USPS labels as close to your actual ship date as possible. Don’t print them days or weeks in advance.
UPS — 90 Days (with Important Nuances)
UPS prepaid shipping labels remain valid for 90 days from the date of creation, according to UPS’s 2026 shipping tariff guidelines.
However, the reality is more nuanced than a simple 90-day window. UPS prefers that labels be used as soon as possible after creation. If a UPS label is used long after it was created, the package risks being flagged as having an old or invalid label, which can route it to a UPS facility for unrecoverable packages. The safe practice is to recreate and repurchase the label if significant time has passed rather than risk an old one.
Using an expired UPS label triggers several immediate consequences — shipment rejection occurs at the first UPS facility that scans your package, and the package will not continue through the UPS network until you provide a valid, current label.
After 90 days, you need to contact UPS directly to request a void, and no void is processed after 180 days.
FedEx — Two Weeks Once Printed (Emailed Labels: Up to Two Years)
FedEx has the most nuanced label validity policy of the major carriers, and understanding the distinction matters:
Emailed labels remain printable for up to two years, but once printed, most FedEx labels must be used within two weeks before expiring, according to FedEx’s 2025 policies.
FedEx also uses a “Ship By” date printed directly on the label. You have up to seven days beyond that “Ship By” date to tender the package before the label becomes invalid.
For returns specifically: FedEx’s non-expiring return label policy means FedEx return labels don’t expire the same way outbound labels do — making them practical for retailers who include return labels with shipments.
DHL — A Few Days to One Week
DHL labels have the shortest validity window of the major international carriers — typically a few days to about a week depending on the service type and origin country. For international DHL shipments, labels should be used immediately or within days of creation. DHL exceptions often linked to customs delays can further complicate shipments with older labels.
Amazon Logistics (AMZL) — Managed by Amazon
For Amazon shipments, label validity isn’t something individual shoppers typically manage — Amazon’s system generates labels automatically and manages their lifecycle. If you’re a seller using Amazon’s fulfillment network, labels for FBA shipments are managed through Seller Central. For returns, Amazon generates labels on demand when a return is initiated, so expiration is generally not a concern for shoppers.
SpeedX — Created by Retailers, Not Individually
SpeedX tracking numbers are generated by the retailers who use SpeedX’s network — SHEIN, Temu, and other e-commerce platforms — not by individual shoppers. If your SPX tracking number shows “Label Created” but no further movement for more than 48–72 hours, it typically means the label was generated but the package hasn’t been physically handed to SpeedX yet, not that the label has expired. If no movement appears after 5 or more days, contact your retailer to confirm the shipment is active.
Carrier Label Validity — Quick Reference
| Carrier | Outbound Label Validity | Return Label Validity |
|---|---|---|
| USPS | 28 days from purchase | 365 days (scan-based) |
| UPS | 90 days from creation | Varies by service |
| FedEx | ~2 weeks once printed | Non-expiring |
| DHL | A few days to 1 week | Varies |
| AMZL | Managed by Amazon | On-demand generation |
What Happens If You Use an Expired Label
The consequences depend on when in the process the expired label is caught:
At drop-off: Some retail drop-off locations (post offices, UPS Stores, FedEx Office) will scan the label and catch the expiration before accepting the package. You’ll be told on the spot that the label is invalid.
At a sorting facility: If an expired label makes it through drop-off, it will almost certainly be caught at the first carrier sorting facility. The package gets flagged and held — it won’t continue through the network until a new label is provided or the shipment is resolved.
“Acceptance Pending” status: The most common symptom of an expired label that got dropped off is a tracking status stuck on “Acceptance Pending” — the carrier’s system shows the barcode was scanned but the authorization behind it has voided. This is a red flag that something is wrong with the label.
Refund complications for returns: Using an expired return label is one of the top reasons refunds get delayed. The package may get stuck in the carrier’s system without properly triggering the return process, delaying your retailer’s receipt of the item and therefore your refund.
SHEIN and Temu Return Labels — What Shoppers Need to Know
Since this site’s audience includes a lot of SHEIN and Temu shoppers, return label validity is worth addressing specifically.
Return labels provided by SHEIN and Temu are typically carrier-specific — SHEIN primarily uses USPS for US returns, while Temu uses USPS and UPS depending on your location. USPS is usually good for 7 days, UPS often lasts 14 days, and FedEx labels from retailers like SHEIN typically work for up to 30 days.
The practical advice: use your return label as soon as possible after receiving it. Don’t leave it sitting for weeks assuming it’ll still work. If your return window is long and you’re planning to return an item close to the deadline, request a fresh return label from the retailer rather than relying on one generated weeks earlier.
How to Get a New Label If Yours Has Expired
The process is straightforward regardless of carrier:
For outbound shipments you haven’t sent yet: Go back to wherever you purchased the label — USPS.com, UPS.com, FedEx.com, or a third-party platform like Pirate Ship or Shippo — and create a new label. You may be eligible for a refund on the expired label depending on how recently it was created.
For return labels from a retailer: Contact the retailer’s customer service and explain that your return label has expired. Most retailers will generate a new return label on request — SHEIN, Temu, and Amazon all do this routinely.
For USPS specifically: Labels must be submitted for refund within 30 days of the label print date via the USPS self-service portal, or up to 60 days via the USPS Help Desk.
Best Practices to Avoid Label Expiration Problems
Print labels as close to your ship date as possible. Don’t print a label days or weeks before you’re ready to ship — there’s no benefit and significant risk.
Check the “Ship By” date on FedEx and UPS labels. It’s printed right on the label. Don’t miss it.
For returns, use the label within a week of receiving it. Even if the validity window is technically longer, acting quickly avoids any risk.
Store unused labels carefully. Heat, moisture, and direct sunlight can degrade thermal-printed labels, making barcodes unreadable even if the label is still technically valid.
Use digital labels where possible. USPS Label Broker lets merchants generate a QR code instead of a physical return label — the post office prints it for you at drop-off, eliminating degradation and expiration concerns entirely.
Quick Reference Summary
| Question | Answer |
|---|---|
| What is a shipping label? | Document on a package containing all routing, tracking, and delivery information |
| Do all shipping labels expire? | Yes — validity varies by carrier from days to months |
| What happens with an expired label? | Package gets stuck — won’t move through carrier network |
| Can I get a refund on an expired label? | Yes, within carrier-specific windows — act quickly |
| How do I get a new return label? | Contact your retailer — they generate new ones on request |
| What’s the longest-lasting label type? | USPS scan-based return labels — valid 365 days |
Tracking a Package That Has SpeedX as the Carrier?
If your SHEIN or Temu order has an SPX tracking number and you’re seeing “Label Created” with no movement, use our free tracker to check the current status before contacting anyone.
