You must be a Costco member to purchase or reload Costco Shop Cards. Members and non-members may use the cash cards to shop at any Costco location in the United States, Canada, Puerto Rico and online at Costco.com or on Costco.ca. Costco Cash balances may be used toward membership or merchandise. 
 
The Costco Shop card features include: 

• A convenient payment option in our warehouses, gas stations, and costco.com
• No expiration date
• Are rechargeable at any Costco warehouse location
• A supply card or gas card for businesses
• A means to provide students with money for food, gas, or school and dormitory necessities, while being able to limit their spending
• Balance can be accessed on costco.com, the warehouse "red kiosk" or by calling the toll-free number on the back of the card