: A significant benefit is Costco's tendency to maintain "old" pricing for a short window after a USPS rate increase. Members may find signage at checkouts indicating that stamps will be sold at the previous rate for several weeks following a national price hike.

Costco is one of the few retailers authorized to sell USPS Forever Stamps at slightly below their face value.

: Generally, a roll of 100 stamps at Costco is priced slightly lower than the equivalent at a post office—for example, $77.75 versus a $78.00 retail price as of April 2026.

, which retain their value for a one-ounce letter regardless of future price increases. Can You Get Stamps at Costco?

: These prices are reserved for members. Notably, stamp purchases are often excluded from the Executive Membership 2% Reward program. Product Options and Format Costco exclusively sells Forever Stamps