Postage Stamps 2025 Increase. The cost of a forever stamp is set to increase in july 2025 as part of the us postal service's 'delivering for america' plan. When do postage stamps go up in 2025 usps avril jessamine, learn about the 2025 postage price change for usps services and products, and how it affects domestic and.

When does the postage increase take. Rates for first class mail will increase by roughly 7.8%.