Current First Class Stamp Price for 2025
A first class stamp in 2025 costs $0.66 for a 1-ounce letter mailed within the United States. This price took effect on January 5, 2025, following a January 2024 adjustment of $0.63. The rate covers up to 1 ounce; each additional ounce currently adds $0.24. These prices are set by the Postal Regulatory Commission and approved by the U.S. Postal Service for letters and flats weighing up to 13 ounces delivered domestically via First-Class Mail.
How First Class Mail Pricing Works
First-Class Mail is tiered by weight and category, with postcards, letters, and flats each priced differently. The base rate applies to letters up to 1 ounce. Larger envelopes and flats have separate pricing. Understanding these tiers helps you choose the most cost-effective option and avoid unexpected postage due at the counter.
Weight and Pricing Tiers
| Weight | Letter Price (1 oz and under) | Additional Ounce |
|---|---|---|
| 1 oz or less | $0.66 | — |
| Over 1 oz, up to 2 oz | $0.66 + $0.24 | $0.24 per oz |
| Over 2 oz, up to 3 oz | $0.66 + $0.48 | $0.24 per oz |
| Over 3 oz, up to 13 oz (flats) | varies by category | varies by category |
Where and When to Buy
You can purchase first class stamps online at usps.com, at local post offices, and at many retail partners. Buying stamps online before a rate change takes effect can lock in a previous rate until inventory is exhausted. Vendors often sell booklets that offer modest discounts per stamp compared to single purchases. Delivery options include in-store pickup and home delivery, depending on the vendor.
Where to Buy and Price Variance
- USPS.com: Official rates; occasional online-only promotions
- Post offices: Full-service availability; may sell booklets at slight discounts
- Retail partners: Convenience; prices usually match official rates
Upcoming Rate Changes and Effective Dates
Postal rates typically adjust annually, often in January, based on a blend of market factors and regulatory reviews. The January 2025 increase from $0.63 to $0.66 followed prior year adjustments. Future changes are proposed by the Postal Service and approved by the Postal Regulatory Commission; when exact dates and amounts are announced, they are published on usps.com and in regulatory filings.
Recent Rate Timeline
| Date or Period | First Class Stamp Price | What Changed |
|---|---|---|
| 2024 | $0.63 | Rate prior to 2025 adjustment |
| January 5, 2025 | $0.66 | New rate for 1-ounce letters; regulatory approval applied |
| 2025 onward (until next announced change) | $0.66 | Current published rate for First-Class Mail letters |
Saving on First Class Mail
To control costs, consider metered postage, which can slightly undercut sticker prices, or buy books when promotions offer discounts. Using lighter paper, avoiding oversized envelopes, and batching mailings also reduce expenses. If your volume justifies it, explore nonprofit or periodical rates for eligible items, but note those come with additional eligibility requirements and handling steps.
Cost-Saving Options at a Glance
- Metered postage: often a few cents below retail
- Booklets: modest per-stamp savings
- Online purchases: convenience and occasional promos
- Lightweight materials and batched sends: lower total weight and fees