When Do Postal Rates Increase In 2024. Postal service filed notice with the postal regulatory commission of mailing services price changes to take effect july 14,. Stamp prices increase again this weekend.

Postal service plans to raise the prices of multiple shipping services on jan. Effective january 21, 2024, the postal service™ will revise notice 123, price list, to reflect price changes to certain competitive international services, as established by the.