A few stamps sitting in a desk drawer can save you an unexpected trip to the post office. But if you haven’t bought postage in a while, you may be surprised by the current price.
So, how much does a book of stamps cost in the United States? As of 2026, a standard book of 20 USPS Forever Stamps costs $16.40, with each stamp valued at 82 cents. That works out to 82 cents per stamp.
The good news is that Forever Stamps don’t become worthless when postage rates increase. Once purchased, they can continue to be used for eligible First-Class Mail, even if the price of a stamp goes up later.
How Much Is a Book of 20 Stamps?
A standard USPS booklet contains 20 Forever Stamps. At the current 2026 rate of 82 cents per stamp, the total is:
- 1 stamp: $0.82
- 10 stamps: $8.20
- 20 stamps: $16.40
- 100 stamps: $82.00
USPS currently lists several 2026 Forever Stamp designs at $16.40 for a book of 20. For example, the U.S. Flag 2026 stamps are available as a book of 20 for $16.40.
Why Does a Book Cost $16.40?
There isn’t normally a special discount simply because you buy 20 stamps together. The calculation is straightforward:
20 × $0.82 = $16.40
The booklet is simply a convenient way to purchase and store multiple stamps.
What Is a Forever Stamp?
A Forever Stamp is a type of U.S. postage stamp designed for standard domestic First-Class Mail.
The important feature is its long-term validity. USPS explains that a Forever Stamp can be used to mail one ounce of First-Class Mail even after future postage increases.
For example, imagine you purchase a booklet today for $16.40. If USPS increases the price of a standard First-Class stamp in the future, you generally don’t have to add the difference when using an eligible Forever Stamp.
That’s one reason many people buy booklets when they regularly send letters, greeting cards, invitations, or other standard mail.
What Can You Mail With a Forever Stamp?
A standard Forever Stamp covers eligible domestic First-Class Mail weighing up to one ounce.
That can include:
- Standard personal letters
- Greeting cards
- Invitations
- Business correspondence
- Other qualifying First-Class Mail
However, not every envelope costs the same to mail. If your letter is heavier than one ounce, unusually shaped, oversized, or otherwise subject to additional postage, you may need extra postage.
USPS notes that a Forever Stamp is intended for domestic mail weighing up to one ounce, including mail sent to U.S. territories and military addresses.
Book of Stamps vs. Sheet of Stamps
You may notice that USPS sells stamps in several formats, including books, sheets, and coils.
A booklet is designed to be convenient to carry and use. A sheet may have the same number of stamps but is arranged differently.
For example, USPS lists the 2026 U.S. Flag stamps as both a sheet of 20 and a book of 20, with each format priced at $16.40.
The best choice largely comes down to convenience rather than postage value.
What About a Roll or Coil?
If you mail a large volume of letters, buying stamps in larger quantities can make more sense.
USPS offers certain Forever Stamps in coils of 100, 3,000, and even 10,000. The U.S. Flag 2026 issue, for instance, is listed at $82 for 100 stamps and $2,460 for 3,000 stamps.
For everyday household use, however, a booklet of 20 is usually much more practical.
Are All Books of Stamps the Same Price?
Not necessarily.
Standard Forever Stamp booklets generally reflect the current postage value, but USPS also sells special editions, commemorative products, and collectible stamp items. Some of these can cost more than the face value of the postage.
For example, USPS lists its Treasures of the Revolutionary Era stamps as a 20-stamp prestige booklet priced at $28.95. The stamps themselves are Forever stamps, but the prestige booklet is a special collectible product rather than an ordinary booklet.
So, if you’re simply looking for postage for everyday mail, look for a standard Forever Stamp booklet rather than a collectible or prestige product.
Where Can You Buy a Book of Stamps?
There are several convenient options.
USPS
The most direct option is the U.S. Postal Service. You can purchase stamps at participating post offices or through the USPS Postal Store.
Buying directly from USPS also makes it easier to check the current official price and available designs.
Retail Stores
Many retailers sell USPS postage stamps. Depending on the store, you may find booklets near the customer service desk, checkout area, or other postal supplies.
Availability and pricing can vary, so check before making a special trip.
Online
USPS also sells stamps online. Keep in mind that online orders may involve handling or shipping-related charges depending on the order.
For example, USPS currently states that domestic stamp and philatelic orders up to $50 are subject to a $2.10 handling fee when ordered through its Postal Store.
Does a Book of Stamps Expire?
No. Standard Forever Stamps do not have an expiration date.
Their main advantage is that they retain their postage value for qualifying mail even when USPS changes the price of a First-Class stamp.
That makes them useful if you don’t send mail every week. You can purchase a booklet today and keep unused stamps for future letters.
Can You Use Old Forever Stamps?
Yes. If you purchased Forever Stamps when the postage rate was lower, they can generally still be used for eligible First-Class Mail.
For instance, an older Forever Stamp doesn’t suddenly become invalid because USPS introduces a new stamp price. Its value is tied to the current applicable First-Class Mail rate.
This is also why people sometimes buy Forever Stamps before an announced rate increase.
What If Your Letter Weighs More Than One Ounce?
A Forever Stamp covers the standard one-ounce First-Class Mail rate, but heavier letters require additional postage.
Before mailing a particularly heavy envelope, it’s worth checking the current USPS postage requirements rather than simply putting one stamp on it.
Other factors can also affect postage, including:
- Weight
- Envelope dimensions
- Shape
- Thickness
- Destination
- Type of mail service
If you’re unsure, a USPS employee can weigh the item and tell you exactly how much postage is required.
Why Do Stamp Prices Keep Changing?
Postal rates aren’t permanently fixed. USPS periodically adjusts prices to account for operating expenses and other factors.
This can make it difficult to remember the current cost of a stamp if you only mail something occasionally.
That’s where Forever Stamps are particularly useful. You can buy them at today’s rate and use them later for qualifying mail without having to replace them simply because the standard postage price increased.
Is Buying a Book of Stamps Worth It?
For most people who regularly mail letters or cards, yes.
Buying 20 stamps at once saves you from repeatedly purchasing individual stamps and means you have postage available whenever you need it.
A booklet can be particularly handy for:
- Small businesses sending invoices or documents
- Families mailing greeting cards
- People sending invitations
- Students mailing paperwork
- Anyone who prefers keeping basic postage at home
If you rarely send physical mail, though, buying a full booklet may not be necessary.
Frequently Asked Questions
How much does a book of stamps cost in 2026?
A standard USPS book of 20 Forever Stamps costs $16.40 in 2026, based on the current 82-cent postage rate.
How many stamps are in a book?
A standard USPS stamp booklet commonly contains 20 stamps.
How much is one Forever Stamp?
The current 2026 price for a standard Forever Stamp is 82 cents.
Do Forever Stamps expire?
No. Forever Stamps don’t expire and can continue to be used for eligible First-Class Mail even after postage rates increase.
Can I use an old Forever Stamp?
Yes. Previously purchased Forever Stamps can generally be used at their applicable current postage value for qualifying mail.
Is a sheet of 20 stamps the same as a book of 20?
They can contain the same number of stamps and have the same total postage value, but the physical format is different. USPS currently lists both sheets and books of 20 for some stamp issues.
Can one Forever Stamp mail any envelope?
No. One Forever Stamp covers qualifying domestic First-Class Mail up to one ounce. Heavier, oversized, unusually shaped, or otherwise nonstandard mail may require additional postage.
Are collectible stamp booklets more expensive?
They can be. Special editions and prestige booklets may cost more than the face value of the stamps because you’re also paying for the collectible format or presentation. USPS, for example, lists its Treasures of the Revolutionary Era prestige booklet at $28.95.
Final Thoughts
So, how much does a book of stamps cost? For a standard USPS booklet in 2026, the answer is $16.40 for 20 Forever Stamps, or 82 cents per stamp.
The bigger benefit isn’t just convenience. Forever Stamps can protect you from future increases in the standard postage rate, making a small stockpile useful for anyone who regularly sends letters and cards.
If you need postage today, check the current USPS rate before buying, especially if you’re mailing something heavier than a standard one-ounce letter or considering international postage.
