2024 Stamp Price Increase. Effective september 16, 2024, usps will adjust rates for priority mail ® and ground advantage ™ packages shipped to certain zip codes. Usps stamp prices going up:
Washington, dc — today, the united states postal service filed notice with the postal regulatory commission (prc) of mailing services price changes to take. Postage stamp prices are on the rise and will increase by another 2 cents starting sunday.