When Do Postage Stamps Go Up In 2024. Postal service (usps) will raise the price of its postage stamps again on sunday, the second price hike in 2024, with the increase tying the record for the biggest hike ever. Washington, dc — today, the u.

It’s the sixth stamp price hike in the last three years. Postal service is raising prices starting on july 14, including the cost of forever postage stamps.