Maria Adams, Credit Cards Moderator
@m_adams
You can’t use your Mastercard credit card at Costco, because Costco has a contract with Visa and it only accepts credit cards on this network for their warehouse locations. You can, however, use your Mastercard credit card for purchases made at Costco.com and through the Costco app.
So, if you only have a Mastercard and want to shop at Costco, you have a couple choices. For starters, you can still pay for Costco items with cash or a check. But if you don’t really want to carry all that cash, take the time to write out a check, or miss out on a lot of rewards, your best bet is to simply get a Visa credit card. The best option would be the Costco Anywhere Visa® Card by Citi, as it offers 5% cash back rewards on gas at Costco and 4% cash back on other eligible gas and electric vehicle (EV) charging purchases for the first $7,000 combined spend per year, and then 1% thereafter, 3% back on restaurant and eligible travel purchases, 2% back on all other Costco and Costco.com purchases, and 1% back on all other purchases.
GARY PAQUETTE, Member
@flyboy91901
MasterCard is only accepted in Canada at all Costco’s.
They do not take Visa and your US debit card will most likely not work as it’s seen as a credit card by their system.
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I read a lot of the comments on the Costco website about the Costco cash card. As best I could tell, it’s a physical card that can be purchased online using a Mastercard. But sometimes the wait to receive the card in the mail can be up to a couple of weeks, and then the only way to reload the card is in-store. That means you can’t use a Mastercard to reload and will have to buy a new one and again go through the hokey-pokey of waiting for the card to arrive in the mail. I have an airline Mastercard and I’m trying to gather enough frequent flyer miles for a trip next year, and I just figured out another work-around. Costco accepts ANY VISA card in-store. So I stopped at Walgreens on the way to Costco and bought a “Vanilla” prepaid VISA gift card. Using my airline Mastercard, I funded the card to its limit ($500) and paid a $5.95 service charge. And then I went shopping at Costco. The new gift card worked perfectly in the store. It will also work at Costco gas stations. This card is NOT reloadable, so once I’ve spent the $500 I put on it, I’ll have to go buy another one, again with the service charge. I figure a few service charges are a small price to pay when we’re talking about plane tickets that would cost several hundred dollars if they weren’t purchased with frequent flyer miles.