On January 22, 2017 the cost of mailing a one-ounce single-piece Stamped Letter will increase from 47¢ to 49¢, and the cost of mailing a one-ounce single-piece Metered Letter will decrease from 46.5¢ to 46¢.
Additional ounces will remain at 21¢, and the cost of sending a Postcard will remain at 34¢.
On October 12, 2016 the USPS provided notice to the Postal Regulatory Commission that the Governors had authorized the Postal Service to adjust the prices for its market dominant products.