What Credit Cards Can You Use at Costco?

Costco has one of the more straightforward — and sometimes surprising — payment policies among major retailers. If you've ever pulled out a Visa card at checkout without thinking twice, that's by design. But if you reached for your Mastercard or American Express, you may have had a different experience. Here's what you need to know about how credit card acceptance works at Costco, why it's set up this way, and how your own card choices fit into the picture.

Costco Only Accepts Visa Credit Cards

At all Costco warehouse locations in the United States, the only credit card network accepted is Visa. This means Mastercard, Discover, and American Express credit cards are not accepted at the register — regardless of the bank that issued them or the rewards they carry.

This exclusivity stems from a co-branded partnership between Costco and Citibank, which has been in place since 2016. Under that agreement, the Costco Anywhere Visa® Card by Citi became the warehouse's official co-branded credit card. In exchange for the exclusive Visa-only policy in stores, Costco members who hold that card get elevated cash back rates in categories like gas, restaurants, and travel — plus a base rate on all other Costco purchases.

But the Costco Anywhere Visa is not the only Visa card you can use. Any Visa credit card — from any issuing bank — is accepted at Costco warehouses. So a Chase Sapphire, a Capital One Visa, a Wells Fargo Visa, or any other Visa-branded card will work at the register.

What About Costco.com?

Online purchases through Costco.com follow different rules. The website accepts a broader range of payment options, including:

• Visa credit and debit cards
• Mastercard credit and debit cards
• Discover cards
• American Express cards
• Costco Shop Cards (gift cards)
• Citi Visa cards linked to your Costco membership

This distinction trips up a lot of shoppers. If you prefer using an Amex or Mastercard for the rewards, shopping online at Costco.com is one way to make that work.

Debit Cards, Cash, and Other Payment Methods

In-store, Costco accepts more than just Visa credit cards. Debit cards from any network — including Mastercard debit, Visa debit, and PIN-based debit — are accepted at all U.S. warehouse locations. Costco also accepts:

• Cash
• Checks (personal and business)
• Costco Shop Cards
• EBT/SNAP cards (at most locations for eligible items)

So even if you don't carry a Visa credit card, you're not locked out of paying at Costco — you just won't be able to use a non-Visa credit card for in-store purchases.

Why Does This Exclusivity Exist?

Retail co-branding deals like this one come down to economics and volume. Costco processes an enormous number of transactions annually. Card networks charge merchants an interchange fee — a small percentage of each transaction — every time a customer swipes a card. By locking in an exclusive deal with Visa (and by extension, Citi), Costco negotiated more favorable interchange rates than it might pay if it accepted every network equally.

For shoppers, the tradeoff is real: if your best rewards card happens to be an Amex or Mastercard, you won't be earning those points on your in-store Costco spending. That's worth factoring in if Costco represents a significant portion of your monthly budget. 💳

The Costco Anywhere Visa: What Makes It Different

The co-branded Costco Anywhere Visa Card is worth understanding as its own category — not because it's necessarily the right card for everyone, but because it illustrates how co-branded retail cards work differently from general-purpose cards.

Co-branded cards typically offer:

• Elevated rewards at the branded retailer (in this case, Costco purchases)
• Accelerated rewards in specific everyday categories (gas, travel, dining in this card's case)
• A flat base rate on all other purchases

Unlike store-branded cards that only work inside one retailer, the Costco Anywhere Visa functions as a full Visa card — accepted anywhere Visa is. That means you can use it at Costco, at the gas station, at restaurants, and everywhere else.

Factors That Shape Which Card Actually Makes Sense for You

Knowing which cards work at Costco is straightforward. What's more nuanced is knowing which card is worth carrying — and that depends on your individual credit profile and spending patterns.

A few variables that matter: 🔍

• Your credit score range — The Costco Anywhere Visa is generally targeted at consumers with good to excellent credit. General-purpose Visa cards span a much wider range, from secured cards for those building credit to premium travel cards for established borrowers.
• Your existing card portfolio — If you already carry a strong flat-rate or grocery rewards Visa, adding another card may or may not add value depending on how your utilization and account history look.
• Your Costco spending volume — The more you spend at Costco, the more a card with elevated Costco-specific rewards could matter. For occasional shoppers, a general Visa with strong baseline rewards may be equally useful.
• Category spending — Beyond Costco, where do you spend most? The right card rewards the categories that match your real-world behavior, not just one retailer.

What any Visa card can do at Costco and what any specific card should do for your budget are two different questions — and the second one depends entirely on numbers only you can see.