Usps New Postage Rates 2024. Explore the usps postage rate shifts for postcards, flats, and letter sizes in 2024, and. Usps has notified the postal regulatory commission of mailing services price changes to take effect jan.

Usps has notified the postal regulatory commission of mailing services price changes to take effect jan. The changes will raise mailing services product prices approximately 7.8 percent.