How Much Does A Postage Stamp Cost 2024. The cost of a forever stamp is set to increase in july 2024 as part of the us postal service's 'delivering for america' plan. The new price is a 78 percent increase from when.

This follows a 10p rise to £1.35 in april. If it is approved, this would go into effect july 14 and would increase stamp prices by 7.8%.