Usps Stamps Rate Increase 2024. Effective september 16th, usps is adjusting rates for priority mail® and ground advantage®. Severe weather conditions across the u.s.
Effective september 16th, usps will adjust rates for priority mail and ground advantage. Postal service (usps) will raise the price of its postage stamps again on sunday, the second price hike in 2024, with the increase tying the record for the biggest hike ever.