As of early 2026, the cost of a standard United States Postal Service (USPS) First-Class Mail Forever stamp is $0.78. This rate has been in effect since July 2025. However, regular mail users should prepare for another adjustment soon. On July 12, 2026, the price is scheduled to increase by 4 cents, bringing the cost of a single Forever stamp to $0.82.

Understanding the current and future costs of postage is essential for everyone from individuals sending occasional greeting cards to small businesses managing monthly invoices. The "Forever" stamp, introduced in 2007, was designed to provide convenience and a hedge against inflation. Once purchased, these stamps remain valid for mailing a one-ounce letter regardless of how high the postage rate climbs in the future.

Current Postage Rates for 2026

To plan your mailing budget effectively, it is helpful to look at the complete price list for common First-Class Mail services. While the $0.78 Forever stamp covers a standard one-ounce letter, other items like postcards and international mail have their own specific rates.

Domestic Mailing Costs

  • First-Class Mail Forever Stamp (1 oz): $0.78 (Increasing to $0.82 on July 12, 2026)
  • Additional Ounce Rate: $0.29 (Remaining at $0.29 after July 2026)
  • Postcard Stamp: $0.61 (Increasing to $0.65 on July 12, 2026)
  • Two-Ounce Forever Stamp: $1.07 (Increasing to $1.11 on July 12, 2026)
  • Three-Ounce Forever Stamp: $1.36 (Increasing to $1.40 on July 12, 2026)
  • Metered Mail (1 oz): $0.74 (Increasing to $0.78 on July 12, 2026)

International and Special Mail

  • Global Forever Stamp (1 oz): $1.70 (Increasing to $1.85 on July 12, 2026)
  • Non-Machinable Surcharge: $0.49 (This applies to square or rigid envelopes)

The decision to increase rates is part of the "Delivering for America" 10-year strategic plan, which aims to help the USPS achieve financial stability. While the frequency of these hikes—often twice a year—has been a point of discussion among consumers, the USPS maintains that its rates remain among the most affordable in the industrialized world.

How the Forever Stamp Works

The brilliance of the Forever stamp lies in its name. Its value is not printed as a monetary amount but as the word "FOREVER." This means its "value" is always equal to the current price of a one-ounce First-Class Mail letter.

If you purchased a "book" of stamps in 2019 for $0.55 per stamp, those same stamps are perfectly valid today to mail a letter that now costs $0.78. You do not need to add extra 1-cent or 2-cent stamps to make up the difference. This makes them a unique commodity: a product that never expires and serves as a pre-paid service regardless of future price volatility.

Why Buy Forever Stamps?

The primary advantage is convenience. You never have to worry about whether your stamps are "up to date." The secondary advantage is the financial hedge. By purchasing stamps in bulk before a scheduled rate increase, you effectively lock in the lower price for all your future mailings. For instance, buying 1,000 stamps before the July 2026 hike would save a small business $40. While that might seem minor, these savings compound over years of regular mailing.

Calculating Postage for Different Envelope Types

A common mistake many people make is assuming one Forever stamp covers any envelope they can fit into a mailbox. In reality, the USPS has very specific criteria for what constitutes a "standard" letter.

The One-Ounce Rule

A single Forever stamp covers exactly one ounce. But what does one ounce look like in the real world? In our testing and practical experience, a standard business-size (#10) envelope containing four sheets of ordinary 20lb printer paper typically weighs just under one ounce. Once you add a fifth sheet or include a heavy cardstock insert, the weight often tips over the limit.

If your letter weighs 1.1 ounces, it requires the Forever stamp plus an "Additional Ounce" stamp. Placing two Forever stamps on a 1.1-ounce letter is a waste of money, as you would be paying $1.56 for a service that only costs $1.07 ($0.78 + $0.29).

Size and Shape Matters: The Non-Machinable Surcharge

The USPS uses high-speed sorting machines to process millions of letters daily. If an envelope cannot go through these machines, it must be hand-canceled, which costs more. This is known as a "non-machinable" surcharge.

You will need to pay more (currently a $0.49 surcharge on top of the $0.78 postage) if your letter meets any of the following criteria:

  1. It is square: Square wedding invitations are a classic example. Even if they weigh less than an ounce, they are non-machinable.
  2. It is too rigid: If the envelope contains a stiff object like a wooden coin, a key, or a credit card that doesn't bend, it can't navigate the rollers of the sorting machine.
  3. It has clasps or strings: Old-fashioned office envelopes with metal clasps or string-and-button closures are non-machinable.
  4. It is "lumpy": If the contents are uneven, making the envelope's thickness inconsistent, it may be rejected by the machine.

A Historical Perspective: Why Costs Keep Rising

To understand why a stamp that cost $0.50 in 2018 now costs $0.78, we have to look at the broader economic and operational landscape of the postal service.

Declining Mail Volume

The rise of digital communication—email, Slack, and online billing—has led to a dramatic decrease in "First-Class Mail" volume. Since 2007, the volume of letters has dropped by over 60%. However, the USPS is still mandated to deliver to every address in the United States six days a week. As the number of delivery points grows (due to new housing) and the volume of mail per house shrinks, the cost per letter inevitably rises.

The "Delivering for America" Plan

Under the current leadership, the USPS has implemented a 10-year plan to modernize its network. Part of this plan involves "judicious" price increases. The goal is to move away from relying on government subsidies and toward a self-sustaining business model. While these biannual price adjustments (usually in January and July) are frustrating for consumers, they are a core component of the strategy to fund new electric delivery vehicles and upgraded sorting facilities.

Inflation and Fuel Costs

Like every other logistics company, the USPS is sensitive to the price of fuel and labor. Transporting mail across the vast geography of the US requires a massive fleet of trucks and planes. When gas prices rise, the cost to deliver a single letter to a remote rural address increases significantly.

Practical Tips for Saving Money on Postage

If you find the rising cost of Forever stamps concerning, there are several ways to mitigate the impact on your wallet or your business.

1. Stock Up Before the Hike

The most straightforward strategy is to buy Forever stamps in bulk before July 12, 2026. Retailers like Costco or your local grocery store often sell coils of 100 stamps. If you know you will be sending out holiday cards or wedding invites later in the year, purchasing them at the $0.78 rate instead of the $0.82 rate is an easy win.

2. Use Metered Mail for Business

If you run a small business, consider using a postage meter or an online postage service. Metered mail rates are typically a few cents cheaper than physical stamps. For 2026, metered mail costs $0.74 per ounce compared to $0.78 for a stamp. This 4-cent difference adds up quickly if you are mailing hundreds of invoices a month.

3. Opt for Postcards When Possible

If you are sending a short note, a "save the date," or a simple thank you, a postcard is significantly cheaper. At $0.61 (rising to $0.65), it offers a more economical way to stay in touch than a full letter. Just ensure your postcard meets the size requirements: at least 3.5" x 5" but no larger than 4.25" x 6".

4. Check Your Weight at Home

Avoid the "two-stamp" trap. Many people, unsure if their letter is over an ounce, simply put two Forever stamps on it "just to be safe." Using a simple digital kitchen scale can tell you if that extra sheet of paper is actually pushing you over the limit. If it is 1.05 ounces, you only need an "Additional Ounce" stamp ($0.29), not a second Forever stamp ($0.78).

5. Use Global Forever Stamps Wisely

When mailing internationally, don't try to guess the postage using domestic stamps. A Global Forever stamp currently costs $1.70 and covers a one-ounce letter to any country in the world where the USPS delivers. It is a much cleaner and more professional look than covering the entire top of an envelope with domestic stamps.

Understanding Envelope Dimensions

Postage isn't just about weight; it's about the "footprint" of the mailpiece. To qualify for the $0.78 First-Class rate, your envelope must be rectangular and fall within these dimensions:

  • Height: Minimum 3.5 inches, Maximum 6.125 inches.
  • Length: Minimum 5 inches, Maximum 11.5 inches.
  • Thickness: Minimum 0.007 inches, Maximum 0.25 inches.

If your envelope is larger than 6.125" x 11.5", it is classified as a "Flat" (or Large Envelope). Flats have a different pricing structure entirely and start at a much higher price point (currently around $1.50 for the first ounce). If you can fold your documents to fit into a standard #10 envelope, you will save a significant amount of money.

The Future of the Forever Stamp

Will the price of Forever stamps ever stop rising? It's unlikely. As long as inflation exists and the volume of physical mail continues to face competition from digital alternatives, the cost of maintaining a physical delivery network will continue to climb.

However, the Forever stamp remains one of the best "consumer-friendly" products offered by the government. It simplifies a complex pricing web into a single, easy-to-understand sticker. Whether the price is $0.78 or $1.00, the peace of mind that comes with knowing "this stamp will always work" is where the true value lies.

Summary of Key Information

  • Current Price (Early 2026): $0.78 per Forever stamp.
  • Upcoming Increase: $0.82 per stamp starting July 12, 2026.
  • Best Value: Buying in bulk before price hikes and using metered mail for business.
  • Weight Limit: One stamp covers up to 1 ounce; additional ounces cost $0.29 each.
  • Special Shapes: Square or rigid envelopes require an extra $0.49 surcharge.

Frequently Asked Questions (FAQ)

Can I still use Forever stamps I bought ten years ago?

Yes. Forever stamps never expire. A Forever stamp purchased in 2007 at the original price of $0.41 is still valid for mailing a one-ounce letter today without any additional postage.

What happens if I put a Forever stamp on a postcard?

You can use a Forever stamp on a postcard, but it is not a good financial move. A Forever stamp costs $0.78, while a postcard stamp only costs $0.61. You will not get a refund for the difference, and the USPS will simply process the postcard as usual.

Do Forever stamps work for international mail?

Standard domestic Forever stamps can be used for international mail, but they are only worth their current domestic value ($0.78). Since international mail costs $1.70, you would need to use multiple stamps or add "make-up" postage to reach the correct amount. It is much easier to use a single "Global Forever" stamp.

Where is the best place to buy Forever stamps?

The official USPS website and local Post Offices are the most reliable sources. Many grocery stores, pharmacies (like CVS or Walgreens), and big-box retailers like Costco also sell them at the counter or in the office supply aisle. Avoid "discount" stamp websites offering 50% off, as these are frequently scams or involve counterfeit stamps.

How many stamps do I need for a 2-ounce letter?

For a 2-ounce letter, you have two choices:

  1. Use one "Two-Ounce" stamp (currently $1.07).
  2. Use one Forever stamp ($0.78) plus one "Additional Ounce" stamp ($0.29). Both methods cost the same amount, but using the dedicated two-ounce stamp looks neater on the envelope.

What is the "Additional Ounce" stamp?

These are stamps specifically valued at the cost of one extra ounce of mail (currently $0.29). They do not have a price printed on them, but they are marked as "Additional Ounce." Like Forever stamps, their value adjusts whenever the USPS changes the rate for extra ounces.