In this blog post, I’ll explain the price of a First-Class stamp in 2025. Whether you mail a friendly card, business letter, or time-sensitive document, using the right stamp keeps your message on track.
First-Class Mail is still one of the quickest and least expensive ways to send items in the U.S., so knowing the latest cost helps prevent delays at the post office.
Overview
Dropping a letter in the mailbox looks easy, yet figuring out the price of a First-Class stamp is sneakily tricky.

Whether you re popping off a birthday card, settling a bill the no-tech way, or sending sensitive papers, knowing the current stamp cost keeps your envelope moving on time and stops it from getting stuck or returned.
How Much Is A First Class Stamp
Let me break down the cost of a First-Class stamp using the United States Postal Service (USPS) so it makes sense:

- Current Price: Right now, a First-Class Forever stamp costs $0.73 for a normal 1-ounce letter.
- Never Expires: These Forever stamps are yours for life-they keep working even after rates go up.
- Extra Ounces: Add another ounce and the price jumps by just $0.28.
- Postcards: A standard-sized postcard flies for $0.56.
- Large Envelopes (Flats): The first ounce of a flat starts at $1.50.
- Odd Shapes: Send a square or stiff envelope and you may pay a small surcharge.
- Delivery Speed: Letters normally land in 1-5 business days to most U.S. addresses.
Current Cost of a First Class Stamp (As of June 2025)
As of June 2025, a First-Class stamp in the U.S. sells for 73 cents. That covers the postage on one standard-sized letter weighing no more than 1 ounce.
The U.S. Postal Service (USPS) tweaks rates now and then to keep pace with inflation and rising costs. The most recent bump hit in January 2025, when the price moved up from 68 cents to the current 73 cents.
What Does a First Class Stamp Cover?
A First-Class stamp lets you send any standard, flat envelope to any address inside the U.S. Heres what it covers in plain terms:
Size: Rectangular mail that measures between 3.5 x 5 inches and 6.125 x 11.5 inches
Weight: Up to 1 ounce
Delivery Time: Usually lands in 1 to 5 business days
People use First-Class for letters to friends, birthday cards, billing statements, and quick small-business mail. Its a reliable, speedy service that doesnt break the bank.
Where to Buy First Class Stamps
First-Class stamps are easy to get-if you know where to look.
- USPS post offices across the country
- USPS.com, delivered right to your doorstep
- Grocery stores, pharmacies, and office-supply shops that have been authorized by the Postal Service
- Self-service stamp kiosks found inside some post offices and in public areas
Buying in bulk-a 20-stamp booklet or a coil of 100-is handy and usually offers a fun design.
Why Do Stamp Prices Increase?
Stamp prices go up mostly because inflation hits everyone and the Postal Service has to cover higher day-to-day costs. Theres nothing cheap about fuel, labor, trucks, or even the paper and ink used for each stamp. On top of that, the USPS earns less money now because people send fewer letters and choose email or texts instead.
Before any new price takes effect, the Postal Regulatory Commission, or PRC, steps in to review and approve the change. The agency wants rates to be fair, so it gives advance notice-usually months ahead-so customers and businesses can adjust.
Conclusion
As of June 2025, a First-Class stamp in the U.S. costs 73 cents. That tiny charge slips into everyday life because people stick it on birthday cards, bills, or quick business notes without thinking twice.
Knowing what that rate covers, when extra postage kicks in, and how Forever Stamps save trouble keeps your letters moving on time-and saves you the headache of unexpected fees.
FAQ
How much does a First Class stamp cost in 2025?
As of June 2025, a First Class stamp costs $0.73 in the United States. This covers mailing a standard letter weighing up to 1 ounce within the U.S.
What happens if my letter weighs more than 1 ounce?
You must pay $0.24 for each additional ounce. You can use “Additional Ounce” stamps or add extra postage to cover the total.
What is a Forever Stamp?
A Forever Stamp is a type of First Class stamp that never expires, even if postage rates increase. If you purchased a Forever Stamp in a previous year at a lower price, it still covers the full current First Class rate.