How many stamps do you need per ounce? Stores & Services 3 July 2022 A standard letter that weighs under one (1) ounce will require 55 cents of postage to mail in 2020. USPS…
What happens if a letter weighs over 1 oz? Stores & Services 1 July 2022 Customers must affix additional postage when mailing letters weighing in excess of 1 ounce and/or letters subject to the nonmachinable…
