That single fact makes Forever Stamps one of the most practical postage purchases you can make. There is no clock ticking, no “use by” date printed on the stamp, and no risk of the stamp losing value in a desk drawer. Below, we explain exactly how the program works, why it matters for your budget, and how to plan your postage purchases with confidence.
Current USPS letter rates
As of September 13, 2026, USPS Notice 123 lists $0.82 for an eligible stamped domestic letter up to 1 ounce, $1.11 for 2 ounces, $1.40 for 3 ounces and $1.69 for 3.5 ounces. The additional-ounce increment is $0.29, and a qualifying nonmachinable letter adds $0.49. The schedule took effect July 12, 2026.
These prices apply only after the finished piece is classified correctly. Postcards, flats, packages, international mail and added services use different rules.
What “Forever” Really Means
The U. S. Postal Service introduced the Forever Stamp in 2007 at a price of $0.41. The concept was simple: buy the stamp at today’s price, and it will always be accepted for a one-ounce First-Class letter, regardless of future rate increases.
Why This Matters When Prices Rise
Rate increases are not occasional surprises—they have become a regular occurrence. In recent years, the USPS has implemented one or two adjustments annually. That predictable pattern is exactly why buying Forever Stamps ahead of a rate change can save real money over time.
Here is a simple illustration of the savings potential:
The stamps bought at $0.41 still cover a $0.82 letter today, and they will cover a $0.82 letter in July 2026. That is the core value of the Forever program: your stamps keep pace with the rate, no matter when you bought them.
How Many Forever Stamps Should You Buy?
The right quantity depends on your actual mailing volume. Buying too many stamps you will not use ties up cash unnecessarily. Buying too few means you may miss a rate increase window. A practical approach is to estimate your mailing needs for the next 12 to 18 months and purchase accordingly.
Household Mailing Scenarios
- Occasional mailer (5–10 letters/month): A book of 20 stamps covers roughly two months. Two books—40 stamps—will last most of a year at this volume.
- Moderate mailer (15–25 letters/month): A roll of 100 stamps covers four to six months. Purchasing 100 stamps before a rate increase locks in savings on dozens of future letters.
- Heavy mailer (30+ letters/month): Consider purchasing multiple rolls or a bulk quantity. At 360 letters per year, buying 100 stamps three times before rate changes can save $12 or more annually compared to buying after each increase.
Small Business and Freelancer Mailing
USPS rates effective July 12, 2026 should be treated as current, not as a future buying deadline.
Wedding and Event Planning
Holiday Cards and Seasonal Mail
Households that send holiday cards every December benefit from planning ahead. If you send 75 cards each year, purchasing stamps in summer—well before the holiday rush and any intervening rate increases—ensures you have postage on hand at the lowest available price.
Common Questions About Forever Stamp Validity
Do Forever Stamps have an expiration date printed on them?
No. Forever Stamps do not carry an expiration date, a “valid through” notation, or any printed time limit. The word “Forever” is the only indication you need. As long as the stamp is unused and undamaged, it is valid for mailing.
Will Forever Stamps still be valid if the USPS changes its stamp program?
The USPS has given no indication that it plans to discontinue or invalidate existing Forever Stamps. Since 2007, every Forever Stamp ever sold has remained valid. If the program were ever phased out, the USPS would provide advance notice, but nothing in current policy suggests that is on the horizon.
Can I use a Forever Stamp on a heavier letter or a flat?
A single Forever Stamp covers the postage for a one-ounce First-Class letter. If your letter weighs more than one ounce, you will need additional postage—typically an additional $0.29 for each extra ounce at the current rate. Forever Stamps can be combined with other stamps or additional postage to meet the required amount.
Do Forever Stamps lose value over time?
No. A Forever Stamp purchased at any previous price continues to cover the current First-Class one-ounce letter rate. It does not lose value regardless of how long you hold it. This is the defining feature of the Forever Stamp program.
Are Forever Stamps valid for international mail?
A single Forever Stamp does not cover international First-Class Mail. International letter postage requires additional stamps or a Global Forever Stamp, which is a separate product. Forever Stamps are specifically designed for domestic First-Class letter mail.
How to Plan Your Next Stamp Purchase
The savings are modest per stamp but add up quickly at higher volumes—and since the stamps never expire, there is no downside to holding a supply that extends beyond the immediate year.
Buying Tips and Next Steps
Use this section as a practical checkpoint before buying: confirm the current postage rule, match the stamp type to the mail you plan to send, and choose a quantity that fits your real mailing needs.
- Forever Stamps never expire and never lose value—they always cover the current one-ounce First-Class letter rate.
- Estimate your 12-to-18-month mailing volume and buy accordingly.
- Books of 20 and rolls of 100 are the most common quantities for households and small businesses.
- Stamps purchased at any time in the past are still fully valid for today’s mail.
Whether you are stocking up for holiday cards, planning wedding invitations, or simply keeping postage on hand for everyday bills and correspondence, Forever Stamps let you buy with confidence. The stamps you purchase today will cover tomorrow’s letter—no matter when “tomorrow” turns out to be.
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.