New Usps Rates 2024 Calculator. Impacted zip codes will enjoy up to 41.66% off usps priority mail® and 48.92% off usps ground advantage™ when you ship through stamps.com. This change introduces a separate rate structure for.

Usps® is raising rates on july 14, 2024 for the sixth time in 3 years with some of the largest increases in history and at significantly higher pace than inflation. Starting september 16, 2024, usps will update its new shipping rates for over 17,000+ zip codes due to their market demands.