Costco originally had a similar deal with American Express, but after 16 years ... only credit card company Costco members can use to pay with, Costco accepts almost any debit card—even debit ...

Costco is no longer accepting American Express. Instead, the retailer's partnership with Citi and Visa is now underway. As of Monday, Costco members can now pay with any Visa credit or debit card ...

Have you wondered which forms of payment you can use at Costco? It's different in-store versus online, but here is all you need to know.