Postage Stamps Cost 2024 Increase 2024. Starting on july 14th, 2024, the us postal service will increase “forever” stamp prices from 68 cents to 73 cents for letters weighing one ounce or less. When do postage stamps increase in 2024.

Eliminates the need to guesstimate postage, preventing overspending and returns. Stamp discounts continue for smes and personal customers.