a forever stamp is a stamp that always will be valid, regardless of future postal rate increases. introduced in 2007, the forever stamp allows users of the united states postal service to lock in a consistent rate to avoid the hassle of keeping up with the current postal rate.

the forever stamp currently costs 41¢ and will forever be valid without the need for additional postage to match the current rate.

further information can be found on: foreverstamps.com