Us Postage Extra Ounce Cost 2024. The postal service is also seeking price adjustments for special services products,. The postal regulatory commission (prc) has approved the next usps postage rate increases, which will take effect on sunday, july 14, 2024.
Postcards sent domestically will be 56 cents, up from 53 cents. Usps ground advantage prices would increase by 5.4 percent, priority mail service.