Postage Rates 2024 Extra Ounce. 2024 postage rates per ounce chart frayda aloysia, postal service filed notice with the postal regulatory commission of mailing services price changes to take effect july 14, 2024. The price for each additional ounce has.
Usps ® rates are determined based on a combination of weight, mail class, and shape. The price for each additional ounce has increased from 24 cents to 28 cents.