How Much Is a Postcard Stamp in 2026? ($0.65)
A postcard stamp costs $0.65 in 2026
The USPS domestic postcard rate is $0.65, effective July 12, 2026, up from $0.61. That single stamp mails a standard postcard anywhere in the United States. A book of 20 postcard stamps costs $13.00. Sending a postcard overseas costs more, at the $1.75 international rate.
Postcard stamp price chart
| Destination | Rate | Book of 20 |
|---|---|---|
| Domestic postcard | $0.65 | $13.00 |
| International postcard | $1.75 | $35.00 |
| Domestic letter (1 oz) | $0.82 | $16.40 |
What counts as a postcard for the lower rate
To qualify for the $0.65 rate a card must be rectangular, at least 3.5 by 5 inches, no larger than 4.25 by 6 inches, and between 0.007 and 0.016 inches thick. Anything larger or thicker is charged the First-Class letter rate instead, which is $0.82. Oversized holiday cards are the most common surprise here.
Can you use a Forever stamp on a postcard?
Yes, but you will overpay. A Forever stamp is worth $0.82 and a postcard only needs $0.65, so you lose $0.17 of postage value per card. If you have leftover Forever stamps and no postcard stamps, they will work. For quantities, see the current book of stamps price.
Leftover postcard stamps are worth cash
Postcard stamps in unused condition hold their value the same way Forever stamps do. If you bought a batch for an event or mailing and have extras, you can sell unused stamps rather than let them sit.
Quick answers
How much is a postcard stamp? $0.65 for domestic mail, effective July 12, 2026.
How much to mail a postcard internationally? $1.75, the same as an international letter.
Do postcard stamps expire? No. Forever-style postcard stamps stay valid at the current postcard rate.
Is a postcard cheaper than a letter? Yes, $0.65 versus $0.82, a saving of $0.17 per piece.