Now might be a good time to stock up on U.S. postage Forever Stamps. The cost of stamps is going up by two cents Sunday.The price of a First-Class Mail Forever stamp is going from 58 cents to 60 cents. It usually takes one Forever stamp to mail a letter domestically.It is the second increase in less than a year. The U.S. Postal Service raised the rate for a Forever Stamp from 55 cents to 58 cents on Aug. 29, 2021.“They don’t give us a reason why. They just tell us there’s going to be an increase,” Lamesa Postmaster Richard ...