New USPS Flat Rate Prices for 2026 – Postage Changes for Flat Rate Loyalists
USPS flat rate shipping breaks from its usual price hike pattern in 2026. For the first time in years, some flat rate envelope prices will actually drop by up to $0.20, even as Priority Mail services overall increase by approximately 6.6%. The changes take effect January 18, 2026, creating a mix of price adjustments that