Us Postage Increase 2024. The postal service will also adjust prices for. The postal regulatory commission (prc) has approved the next usps postage rate increases, which will take effect on sunday, july 14, 2024.
January 19, 2024, 7:57 am. Effective september 16, 2024, usps will adjust rates for priority mail ® and ground advantage ™ packages shipped to certain zip codes.