what is the first class postage rate
USPS rates WILL NOT be changing on April 26, 2015. The U.S. Postal Service has announced a postage rate increase for select mail classes and services for 2015. The new postage rates will start on Sunday, April 26, 2015. The cost to send a one ounce First Class Letter will NOT BE INCREASING and will remain $0.49. Additional ounces will cost $0.22, a one cent increase from 2014.