Knowing First-Class Mail rates as of January 2026 helps you budget accurately for business correspondence, whether you're sending a handful of invoices or hundreds of customer statements. USPS adjusts postage prices periodically—typically in January and July—so tracking dated rates matters for any business that relies on physical mail.
This page covers First-Class Mail pricing as of January 2026 for letters, postcards, and large envelopes, including both retail (stamp) rates and metered mail discounts. For businesses curious about volume discounts, we also explain commercial presort pricing and the requirements to access those rates.
Current First-Class Letter Rates#
First-Class letters are priced by weight, with a base rate for the first ounce and additional charges for each ounce thereafter. The maximum weight for letter-rate pricing is 3.5 ounces.
Retail Rates (Forever Stamps)#
The current Forever Stamp price is $0.78, which covers a standard one-ounce letter. This rate took effect July 13, 2025. Here's the complete breakdown for letters:
Weight | Retail Price |
|---|---|
1 oz | $0.78 |
2 oz | $1.07 |
3 oz | $1.36 |
3.5 oz (max for letters) | $1.65 |
A standard business letter with 4-5 pages typically weighs under one ounce. Once you exceed one ounce—usually around six pages of standard 20-lb paper in a #10 envelope—you'll need additional postage.
Metered Mail Rates#
Postage meters and online postage services qualify for slightly lower rates than stamps. This discount exists because metered mail is pre-processed and easier for USPS to handle.
Weight | Metered Rate | Savings vs. Stamp |
|---|---|---|
1 oz | $0.74 | $0.04 |
2 oz | $1.03 | $0.04 |
3 oz | $1.32 | $0.04 |
3.5 oz | $1.61 | $0.04 |
The four-cent discount applies regardless of weight. For businesses sending regular mail, even modest volumes add up: 50 letters per month saves $24 annually; 200 letters per month saves $96.
Nonmachinable Surcharge#
Letters that can't be processed by USPS's automated sorting equipment incur an additional $0.49 surcharge. This applies to:
Square envelopes (aspect ratio outside 1.3-2.5 range)
Rigid items like cards containing photos or USB drives
Envelopes with clasps, strings, or buttons
Lumpy items like pens, keys, or small objects inside the envelope
Very thin or very thick envelopes
A one-ounce nonmachinable letter costs $1.27 ($0.78 + $0.49) rather than $0.78. If you're sending square invitations or greeting cards with embellishments, plan for this surcharge.
Postcard Rates#
Postcards meeting USPS size requirements mail at their own discounted rate: $0.61 each.
To qualify for postcard pricing, pieces must be:
Minimum 3.5 inches × 5 inches
Maximum 4.25 inches × 6 inches
Thickness between 0.007 and 0.016 inches
Rectangular, not square
Oversized postcards exceeding these dimensions are charged letter rates instead. A 5×7 postcard, for example, would cost $0.78 (one-ounce letter rate) rather than $0.61.
Large Envelope (Flat) Rates#
Mail pieces exceeding letter dimensions but remaining flexible and flat are classified as "flats" and priced by weight up to 13 ounces.
Weight | Retail Price |
|---|---|
1 oz | $1.63 |
2 oz | $1.86 |
3 oz | $2.09 |
4 oz | $2.32 |
5 oz | $2.55 |
6 oz | $2.78 |
7 oz | $3.01 |
8 oz | $3.24 |
9 oz | $3.47 |
10 oz | $3.95 (online) or $4.95 (Post Office) |
11 oz | $3.93 |
12 oz | $4.16 |
13 oz (max) | $4.39 |
Large envelopes can measure up to 12 inches × 15 inches × 0.75 inches. Typical uses include 9×12 manila envelopes, multi-page documents, and booklets.
The price jump from letter to flat rates is significant. A two-ounce letter costs $1.07; a two-ounce flat costs $1.86. Keeping mail within letter dimensions when possible saves money.
Commercial Presort Rates#
Businesses mailing large volumes can access discounted commercial rates through the USPS Commercial Mail program. These savings are substantial—automation letters can cost as little as $0.42-$0.59 per piece—but the requirements are considerable.
Requirements for Commercial Rates#
To qualify for commercial pricing, you must:
Send a minimum of 500 pieces per mailing
Obtain a USPS permit
Apply Intelligent Mail barcodes to each piece
Standardize addresses through CASS-certified software
Sort mail by ZIP code into bundles and trays
For most small businesses, these requirements outweigh the savings. The 500-piece minimum alone rules out commercial rates for typical transactional mailings like invoices and statements.
Commercial Rate Examples#
For businesses that do meet volume requirements, here's a sample of automation letter rates (prices vary by sort level):
Presort Level | Price |
|---|---|
5-Digit | $0.420 |
AADC | $0.462 |
Mixed AADC | $0.498 |
The deepest discounts require the most sorting work. "5-Digit" pricing means you've presorted mail into groups going to the same 5-digit ZIP code—practical only for very large mailings.
For more detail on commercial mail, see Commercial First-Class Mail Rates for Businesses.
How Rate Increases Work#
USPS typically adjusts rates twice yearly, though not every adjustment affects all mail classes. Recent changes include:
July 2025: Forever Stamp increased to $0.78 in July 2025 (6.8% increase from the prior rate)
January 2025: Minor adjustments to commercial rates
January 2026: USPS announced no price changes for mailing services
Rate increases have become more frequent in recent years as USPS works to address financial pressures. The July 2025 increase was the fourth consecutive annual increase for First-Class Mail.
Planning assumption: Expect rates to increase in most years. When budgeting for mail expenses, building in modest annual increases helps avoid surprises.
What Your Business Actually Pays#
Understanding rates is one part of the equation. What you actually pay per piece depends on how you're sending mail.
Manual mailing with stamps: You pay retail rates ($0.78 for a one-ounce letter) plus the cost of envelopes, paper, and your time handling the logistics.
Postage meters: You pay metered rates ($0.74 for a one-ounce letter) plus equipment lease costs (typically $20-50/month for basic meters) and supplies.
Online mailing services: Services like Postmarkr charge all-in pricing that includes printing, postage, and mailing. Letters start at $2.50, which covers everything—no separate postage calculation needed, no supplies to stock.
The right approach depends on your volume and how you value your time. For occasional letters, stamps work fine. For regular business mail, the convenience of all-in pricing often makes sense.
Comparing First-Class to Other Mail Classes#
First-Class Mail occupies the middle ground between expensive premium services and cheaper bulk options.
Service | Cost (1 oz letter) | Delivery | Tracking | Forwarding |
|---|---|---|---|---|
First-Class Mail | $0.78 | 1-5 days | No* | Yes |
Priority Mail | $9.50+ | 1-3 days | Yes | Yes |
Marketing Mail | ~$0.30-0.50 | several days | No | No |
*Tracking available for packages or with add-on services like Certified Mail
First-Class offers the best balance for typical business correspondence: reasonable speed, forwarding and return services, and professional handling without Priority Mail's premium pricing.
For help deciding which service fits your needs, see First-Class Mail vs Priority Mail and First-Class Mail vs Marketing Mail.
Frequently Asked Questions#
How much does a First-Class stamp cost in 2026?#
As of January 2026, a Forever Stamp costs $0.78. This rate has been in effect since July 13, 2025, and USPS announced no mailing services price changes for January 2026.
Does metered mail cost less than stamps?#
Yes. Metered postage for a one-ounce letter costs $0.74 versus $0.78 for a stamp—a four-cent savings per piece. Businesses using postage meters or online postage services automatically qualify for metered rates.
What happens if I don't put enough postage on a letter?#
If postage is insufficient, USPS will either return the letter to you (if your return address is readable) or deliver it postage-due to the recipient, who would need to pay the difference plus a fee. For business mail, always weigh items when there's any doubt about postage.
When does USPS typically raise First-Class Mail rates?#
USPS typically announces rate changes in January and July, though not every announcement includes First-Class Mail adjustments. The most recent increase (July 2025) set the Forever Stamp price to $0.78.
How can I get commercial postage rates?#
Commercial rates require a minimum of 500 pieces per mailing, a USPS permit, Intelligent Mail barcodes, CASS-certified address standardization, and physical presorting. Most small businesses don't meet these requirements for regular mailings. An alternative is using a mailing service that accesses commercial rates on your behalf.
Keeping Track of Rates#
First-Class Mail rates matter for budgeting and accurate postage application. As of January 2026, the Forever Stamp price is $0.78 for standard one-ounce letters, with additional charges for heavier items.
For businesses sending regular mail, metered rates provide a small per-piece savings, while online mailing services like Postmarkr offer all-in pricing that removes the need to track postage rates separately. Whatever approach you choose, knowing rates as of January 2026 helps you plan accurately and avoid postage surprises.
Related reading: Commercial First-Class Mail Rates: Volume Discounts Explained
Related reading: First-Class Mail vs Priority Mail: Cost and Speed Comparison