: Stamps with a specific cent value (e.g., 25 cents) retain that exact value forever. You can use multiple old stamps on one envelope to meet the current mailing rate. 4. Third-Party Options
: These are always valid for the current First-Class Mail 1-ounce rate, regardless of when they were purchased or how much the price has increased. usps buy back old stamps
: You cannot exchange stamps simply because the price of postage has gone up. You must buy "makeup" stamps (e.g., 2-cent stamps) to reach the current rate. 3. Using Old Stamps United States postage never expires . : Stamps with a specific cent value (e
Are Stamps and Other Postage Products Eligible for a Refund? Third-Party Options : These are always valid for
: Stamps that are damaged, stuck together, or otherwise "spoiled" through no fault of your own can be exchanged for an equal number of stamps of the same denomination.
: Flawed stamps or incorrect denominations received from a Postal Store order. 2. Can I Exchange Old Stamps?