USPS, UPS, and FedEx each serve different shipping needs. This guide helps you choose the right carrier and avoid surprise charges on every order.
Which carrier should I use?
| Scenario | USPS | UPS | FedEx |
|---|---|---|---|
|
Lightweight package (<1 lb) to a home address
e.g. jewelry, small accessories, supplements
|
Best choice | High surcharges | High surcharges |
|
Any B2C residential delivery
Shipping to a home address
|
Best choice | +$5 surcharge | +$5 surcharge |
|
Medium package (1–10 lbs) to a business
B2B or commercial address
|
Less competitive | Good choice | Good choice |
|
Heavy or oversized item (>10 lbs)
Furniture, equipment, bulk goods
|
Not recommended | Best choice | Best choice |
|
Time-sensitive overnight / 2-day delivery
Guaranteed delivery windows
|
Priority Mail | Best choice | Best choice |
|
Rural or remote address
USPS delivers everywhere by law
|
Best choice | Extra fees possible | Extra fees possible |
Rule of thumb: If your customer is at a home address and the package is under a pound, USPS will almost always be the most cost-effective option. For heavier items or time-critical shipments to commercial addresses, compare UPS and FedEx.
Why is my UPS or FedEx bill higher than the quoted rate?
UPS and FedEx add surcharges on top of the base rate. The two most common ones your clients will encounter are:
Residential delivery surcharge
~$5.00+UPS and FedEx add a residential carrier adjustment to every delivery sent to a home address. This fee is per package and is separate from the base shipping rate. USPS does not charge this fee.
Fuel surcharge
+15%+UPS and FedEx apply a variable fuel surcharge that changes weekly based on the U.S. Department of Energy index. It's calculated as a percentage of your base rate and can meaningfully increase your total cost. USPS does not charge a fuel surcharge.
Heads up: The rate shown at label creation may differ from what appears on your final invoice once UPS/FedEx apply their weekly fuel adjustment and any residential fees. Always verify the invoice, not just the quoted rate.
How do label refunds work if I void a shipment?
If you purchase a label but don't end up using it, you can void it. How that refund works depends on the carrier.
USPS tip: Because of the 14-day hold, avoid generating USPS labels before a package is ready to ship. Labels created in error now lock up funds for two weeks before the credit is returned.
Quick reference
- ✓No residential surcharge
- ✓No fuel adjustment fees
- ✓Best for <1 lb to home addresses
- ✓Delivers to every US address
- ~14-day hold on voided label refunds
- ~Sender email + phone required
- ✓Strong for heavy packages
- ✓Reliable B2B / commercial delivery
- ✓Fast guaranteed service options
- ✗Residential surcharge ~$5+
- ✗Variable fuel surcharge 15%+
- ~Post-billed; unscanned labels not charged
- ✓Premium overnight options
- ✓Strong for large and heavy items
- ✓Reliable commercial delivery
- ✗Residential surcharge ~$5+
- ✗Variable fuel surcharge 15%+
- ~Post-billed; unscanned labels not charged