You can use many genuine, unused vintage U.S. stamps on wedding invitations, but the required total comes from the completed envelope—not its theme or the number of stamps. Assemble one invitation exactly as guests will receive it, then measure, weigh and classify it before buying or applying postage.
The safe six-step workflow
- Put the invitation, inserts, liner, RSVP materials and decorations into one sample envelope.
- Seal it and measure the finished length, height and thickness.
- Weigh the complete sample; do not use a paper or envelope estimate.
- Check whether it is a standard letter or nonmachinable because it is square, rigid, uneven, clasped or otherwise outside machinable conditions.
- Find the current total dollar postage and combine eligible unused stamps to at least that amount.
- Before mailing the full batch, take the sample to a Post Office or verify it with the USPS Retail Postage Price Calculator.
Current domestic letter checkpoints
For retail stamped letters, prices effective July 12, 2026 are shown below. These amounts apply only when the finished piece qualifies as a domestic letter.
| Finished piece | Postage | What changes it |
|---|---|---|
| Up to 1 oz | 82¢ | Extra weight, shape, dimensions or service |
| Over 1 through 2 oz | $1.11 | Further weight or nonmachinable conditions |
| Over 2 through 3 oz | $1.40 | Further weight or nonmachinable conditions |
| Nonmachinable letter | Add 49¢ | Square shape, rigidity and other DMM-listed features |
A square letter has an aspect ratio below the machinable threshold. Read the square-envelope postage guide before ordering square invitation envelopes.
How vintage denominations work
A valid fixed-denomination stamp contributes its printed amount. Combine denominations so their total meets or exceeds the required postage. The objective is the correct dollar total—not “one stamp per envelope.” A genuine Forever stamp follows its defined current service value, but not every old or decorative stamp is a Forever stamp.
Designing the stamp arrangement
- Keep all postage on the address side, normally in the upper-right area.
- Leave the delivery address, return address and barcode clear zones readable.
- Plan enough surface area for the entire combination without overlap.
- Do not use cancelled, previously used, replica or decorative sticker stamps as postage.
- Preserve any potentially collectible item until you have compared its postal value with collector interest.
Choose stamps after postage is known
Once the sample is verified, browse the wedding stamp collection by actual postage use as well as design. If you want older issues specifically, follow the seller and authenticity checklist in where to buy vintage postage stamps.
Return to the vintage stamps hub.
Sources
- USPS — how to send a letter
- USPS DMM 101 — physical standards
- USPS Notice 123 — current retail prices
- USPS Retail Postage Price Calculator
“Minted wedding stamps” can mean two different things
Minted is also the name of a current invitation and design marketplace. A search for “Minted wedding stamps” may therefore be asking how to coordinate postage with a Minted invitation suite—not for stamps in mint philatelic condition. This site is independent and is not affiliated with or endorsed by Minted.
For any invitation brand, assemble one complete sample with every insert, liner, seal and decoration. Measure its length, height and thickness, weigh it, check rigidity and shape, and only then choose valid postage. “Mint” in a collector description refers to stamp condition and does not identify the Minted brand.
Sources and update note
Use the linked primary record for the exact issue, rule or current condition. Prices, availability and platform features can change and should be checked at the time of use.