“Prepaid postage stamp” may refer to an adhesive stamp, but prepaid postage also appears as a printed envelope indicium, shipping label, meter impression or permit marking.
Five common forms
| Form | What it is | Best check |
|---|---|---|
| Adhesive postage stamp | Physical stamp applied to the mailpiece | Validity, service value and total postage |
| Stamped envelope/card | Postal stationery with a printed indicium | Value represented and whether extra postage is needed |
| Online shipping label | Printed label encoding postage and routing data | Class, weight, dimensions, date and tracking |
| Meter impression | Postage printed by an approved meter system | Date, amount and meter rules |
| Permit imprint | Indicia used under a mailing permit | Permit, preparation and minimum-volume rules |
A decision workflow
- Classify the completed item as a letter, flat, postcard or package.
- Measure and weigh it, including contents and packaging.
- Select the mailing class and any added service.
- Decide whether you need a label with tracking or can use physical postage.
- Buy or apply the exact required amount and place it where USPS directs.
Do not treat “prepaid” as “everything is covered.” A stamped envelope may still need added postage when weight, shape, destination or services increase the price.
Packages paid with stamps
Physical stamps can pay postage for some domestic packages, but acceptance and security rules matter. A package over 10 ounces or more than one-half inch thick that bears only stamps must be presented at a Post Office retail counter rather than dropped into an unattended collection point. Verify current rules and the finished package.
Use our postage calculator guide for the initial estimate, then confirm with USPS.
Sources and review note
Reviewed August 31, 2026. Postal products, prices and rules can change; verify current USPS guidance before mailing or buying.
Explore this topic in detail
Use these focused pages for the complete answer, product, tool or reference for each separate task.
- envelope stampIdentify or obtain an envelope with valid postage and distinguish it from envelope rubber stamps or postage printed by software.
- metered mail vs stamped mailUnderstand Stamped Vs Metered and apply it correctly.
Explore this topic
Preview each focused page below to understand its core task before opening it. The topic center provides the overview; each child page handles its own detailed answer.
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