What Is the Service Guarantee?
Both UPS and FedEx offer a money-back guarantee (also called the Guaranteed Service Refund or GSR) on express services. If a package covered by the guarantee is delivered even one minute late, the shipper is entitled to a full refund of the transportation charges.
This is one of the most underutilized savings opportunities in parcel shipping.
What’s Covered
| Carrier | Covered Services | Not Covered |
|---|---|---|
| UPS | Next Day Air (all tiers), 2nd Day Air, 3 Day Select | Ground, SurePost, MI |
| FedEx | Priority Overnight, Standard Overnight, 2Day, Express Saver | Ground, Home Delivery, Ground Economy |
What Constitutes “Late”
Each express service has a specific commit time — the guaranteed delivery time:
| Service | Commit Time |
|---|---|
| Next Day Air Early / First Overnight | 8:00–8:30 AM |
| Next Day Air / Priority Overnight | 10:30 AM |
| Next Day Air Saver / Standard Overnight | 3:00–5:00 PM |
| 2nd Day Air / 2Day | End of day |
| 3 Day Select / Express Saver | End of day |
A package delivered at 10:31 AM when the commit time is 10:30 AM qualifies for a full refund.
What’s Refunded
The refund covers:
- ✅ Base transportation charge
- ✅ Fuel surcharge
- ❌ Residential surcharge (usually not refunded)
- ❌ Other surcharges (DAS, AHS, etc.)
- ❌ Duties, taxes, brokerage fees
How to Claim Refunds
Filing Window
| Carrier | Claim Deadline |
|---|---|
| UPS | Within 15 calendar days of scheduled delivery |
| FedEx | Within 15 calendar days of ship date |
Filing Methods
- Online: ups.com or fedex.com → Claims/Billing → Request Refund
- Phone: Call carrier’s billing support
- API: Both carriers offer automated claims filing
- Third-party audit: Companies like ShipMint automate GSR claims
Required Information
- Tracking number
- Scheduled delivery date and time
- Actual delivery date and time
- Invoice number and amount
How Much Money Is Being Left on the Table?
Industry data suggests:
| Metric | Typical Range |
|---|---|
| Late delivery rate (express) | 3–8% |
| Average refund per late package | $15–$45 |
| Percentage of refunds claimed | 10–20% |
Most shippers claim less than 20% of eligible refunds because:
- They don’t track commit times
- They don’t know the guarantee exists
- The 15-day filing window is too tight for manual review
- Ground shipments (no guarantee) make up most of their volume
Example: 500 express packages/week, 5% late, $25 average refund
- Late packages/week: 25
- Potential weekly refund: $625
- Annual unclaimed refunds: ~$32,500
Guarantee Suspensions
Both carriers periodically suspend the guarantee:
| Suspension Reason | Duration |
|---|---|
| Holiday peak season | November–January (6–8 weeks) |
| Major weather events | Days to weeks |
| Natural disasters | Varies |
| Labor disruptions | Duration of event |
| Pandemic/force majeure | Extended periods |
During suspensions, late deliveries are not eligible for refunds. Carriers announce suspensions on their websites and through account notifications.
Negotiation Considerations
Some carrier agreements modify the guarantee:
- Guarantee opt-out: Some shippers agree to waive the guarantee in exchange for lower rates — understand the trade-off
- Extended filing windows: Negotiate longer than 15 days to file claims
- Broader coverage: Some contracts extend guarantees to Ground service (rare but possible)
- Automatic credits: Negotiate automatic refunds rather than requiring manual claims
The Bottom Line
The money-back guarantee is free money that most shippers leave on the table. If you ship express packages and aren’t systematically claiming late delivery refunds, you’re missing savings of $10,000–$100,000+ annually. Automate the process — the manual effort isn’t worth it at scale, but the dollars absolutely are.
ShipMint automatically identifies late delivery refund opportunities. Upload one invoice to Instant Analysis — free.