How Much Does It Cost to Mail a Letter? USPS Postage Rates (2026)
Current rates as of April 2026 • July 2026 increase pending
💌 Current price: 1-oz letter is $0.78 — rising to $0.82 on July 12, 2026
- $0.78 = 1 oz standard letter (current)
- $0.82 = 1 oz standard letter (July 12, 2026)
- $1.07 = 2 oz letter ($0.78 + $0.29)
- $0.61 = Postcard
- $1.70 = International letter (1 oz)
⚠️ Upcoming Rate Increase
USPS filed to raise the Forever stamp from $0.78 to $0.82 effective July 12, 2026 (pending PRC approval). Buy Forever Stamps now to lock in the current rate.
Wondering how much it costs to mail a letter in 2026? The USPS is raising postage rates again, and we're here to break it all down. Whether you're sending a one-page letter, need certified mail pricing, or mailing something overseas, this updated guide covers every scenario, including how to mail a letter online. Save time with our online mail service that handles postage automatically, or use our send letter online service starting at $4.99.
Complete 2026 USPS Mail Rates
Prices shown reflect current USPS rates as of April 2026. A rate increase to $0.82 has been proposed for July 12, 2026. Always verify current rates before mailing.
| Mail Type | Current Price (2026) | Best For |
|---|---|---|
| First-Class Letter (1 oz) | $0.78 (→ $0.82 July 12, 2026) | Standard letters, bills, documents |
| Additional Ounce (each) | + $0.29 | Multi-page letters, thick documents |
| Metered Mail (1 oz) | $0.74 | Business bulk mailings |
| Postcard (Domestic) | $0.61 | Marketing, quick notes |
| Large Envelope/Flat (1 oz) | $1.63 | Catalogs, magazines, large documents |
| International Letter (1 oz) | $1.70 | Letters to other countries |
| Certified Mail Add-On | + $5.30 | Proof of delivery needed |
| Registered Mail Add-On | From $19.70+ | Maximum security, valuable items |
📦 Large Envelope & 9x12 Envelope Postage
Sending something bigger than a standard letter? Large envelopes (also called "flats") — including 9x12 envelopes — use a different rate than standard letters.
| Envelope Type | Weight | Postage |
|---|---|---|
| Large envelope / flat (9x12) | 1 oz | $1.63 |
| Large envelope / flat (9x12) | 2 oz | $1.83 |
| Large envelope / flat (9x12) | 3 oz | $2.03 |
| Large envelope / flat (9x12) | 4 oz | $2.50 |
A 9x12 envelope qualifies as a "large envelope" or "flat" under USPS rules. It must be flexible, rectangular, and under 3/4 inch thick. Add $0.20 per additional ounce after 1 oz.
💡 Pro Tip: Forever Stamps are always valid for First-Class postage, regardless of future rate changes. Stock up when rates are lower! Or skip the post office entirely with our print and mail service for automatic postage calculation and mailing.
Average Annual Stamp Price Increases
USPS postage rates have steadily increased over recent years. Here's how Forever Stamp prices have changed, showing the importance of buying stamps in advance:
| Year | Forever Stamp Price | Annual Increase |
|---|---|---|
| 2022 | $0.60 | - |
| 2023 | $0.66 | +$0.06 (10%) |
| 2024 (July) | $0.73 | +$0.07 (11%) |
| 2025 (July) | $0.78 | +$0.05 (7%) |
| 2026 (July — proposed) | $0.82 | +$0.04 (5%) — pending PRC approval |
USPS implemented a mid-year increase on July 13, 2025 (Forever Stamp to $0.78). Historical data shows an average annual increase of 4-5%, with rate changes typically announced in advance.
Letter vs Postcard vs International: Visual Cost Comparison
Standard Letter
1 oz domestic
Postcard
Domestic postcard
International
1 oz international
Need help addressing your envelope? Check out our full guide on how to address an envelope.
FAQs: Mailing Costs and Postage
How much does it cost to mail a letter in 2026?
It currently costs $0.78 to send a standard First-Class letter (1 oz) within the U.S. USPS has proposed raising this to $0.82 effective July 12, 2026, pending regulatory approval.
How many stamps do I need for 2 ounces?
You'll need $1.07 in postage: one Forever Stamp ($0.78) and one additional ounce stamp ($0.29).
How can I send a letter online?
You can prepare letters online using USPS.com tools or other services. Review current options and requirements at USPS.com. Or use our send letter online service for hassle-free mailing.
How much does Certified Mail cost?
Certified Mail adds an extra fee on top of regular postage. Check current USPS pricing before you send. Learn more about Certified Mail costs, or send Certified Mail online directly.
How much postage for a 9x12 envelope?
A 9x12 envelope is classified as a large envelope (flat) by USPS. Postage starts at $1.63 for 1 oz, then adds $0.20 per additional ounce. A 4-oz 9x12 envelope costs $2.50. Make sure the envelope is flexible and no more than 3/4 inch thick or it will be reclassified as a package.
How much is postage for a large envelope?
Large envelopes (flats) start at $1.63 for 1 oz via USPS First-Class Mail. This covers envelopes larger than 6-1/8" x 11-1/2" including standard 9x12 and 10x13 sizes. Each additional ounce adds $0.20.
How much is a book of stamps in 2026?
A book of 20 Forever Stamps currently costs $15.60 (20 x $0.78). After the proposed July 12, 2026 increase, a book will cost $16.40 (20 x $0.82).
Can I reuse old stamps?
Yes, Forever Stamps can be used regardless of when you bought them. They're always valid for First-Class postage.
What happens if I underpay postage?
The mail will be returned to sender or the recipient will need to pay the shortage plus a handling fee.
Related Questions People Ask
Stamp Values & Worth:
- • How much is a Forever Stamp worth? Always valid for First-Class postage ($0.78 current value)
- • Are old stamps still good? Yes, Forever Stamps never expire
- • How much is a roll of stamps? 100 stamps = $78 (current 2026 rate)
Weight & Postage:
- • How many stamps for 3 ounces? $1.36 total ($0.78 + $0.29 + $0.29)
- • How many stamps for 4 ounces? Flat pricing applies; 4-oz flat = $2.50
- • Is it cheaper to mail online? It depends on the method and service level
Complete Guide Hub: Everything About USPS Mail
📝 Addressing & Formatting
📧 Certified & Tracked Mail
🖨️ Print & Mail Guides
Disclaimer: USPS rates current as of April 2026. A rate increase to $0.82 has been proposed for July 12, 2026, pending PRC approval. This guide is for informational purposes and isn't postal or legal advice. Verify current rates before mailing.