Which Credit Cards Work at Sam's Club and Which Ones Don't

Sam's Club accepts most credit cards, but not all of them

Sam's Club takes Visa, Mastercard, American Express, and Discover at checkout. You can use these cards both in the warehouse and on their website. The one major exception: Sam's Club does not accept Diners Club or any store credit cards from other retailers.

The catch is that Sam's Club has a business relationship with Visa and Mastercard that makes those two cards the smoothest option. American Express and Discover work fine, but Sam's Club doesn't promote them the same way, and you might occasionally run into a register that processes them differently. This rarely causes a problem, but it's worth knowing.

If you're a Sam's Club member paying with a personal credit card, you'll swipe or insert your card at the register like you would anywhere else. The transaction posts to your credit card account within a day or two, just as it does at other stores.

Key Takeaways

• Visa and Mastercard are accepted everywhere at Sam's Club warehouses and online without restrictions.
• American Express and Discover work at Sam's Club but are not the primary payment partners, so occasional processing differences may occur.
• Sam's Club membership is required to shop there, but your credit card choice does not affect your membership status or benefits.
• You cannot use store credit cards from other retailers, and Sam's Club does not issue its own credit card.

Why Sam's Club limits which cards they take

Sam's Club, like most large retailers, negotiates payment processing agreements with card networks. Visa and Mastercard are the networks that Sam's Club prioritizes because they have the largest customer base and the most favorable terms for the warehouse. American Express and Discover are accepted because they're major networks, but Sam's Club doesn't push members toward them.

The reason you don't see a Sam's Club credit card is that the warehouse operates differently from traditional retailers. Sam's Club is a membership club, not an open-to-the-public store. A co-branded credit card would require Sam's Club to partner with a bank, and the warehouse has chosen not to do that. Instead, they focus on accepting the major payment networks that members already use.

Using your credit card online versus in the warehouse

If you shop on Sam's Club's website, you enter your credit card information the same way you would on any other retailer's site. The website accepts Visa, Mastercard, American Express, and Discover. You'll need your membership number to complete the purchase, and your card will be charged once the order is confirmed.

In the warehouse, the process is faster: you hand your card to the cashier or insert it into the chip reader, and the transaction is done. Both methods post to your credit card account within one to two business days. If you're using a rewards credit card, the purchase counts toward your rewards just like any other transaction.

What happens if you try to use a card Sam's Club doesn't accept

If you attempt to pay with a card that Sam's Club doesn't accept—such as a Diners Club card or a store credit card from Target or Walmart—the register will decline it. The cashier will ask you to provide a different payment method. You can then use a Visa, Mastercard, American Express, Discover, debit card, or cash instead.

This happens at the point of sale, so there's no delay or confusion. You simply won't be able to complete the transaction with that card. If you frequently shop at Sam's Club and use a card network they don't accept, it's worth adding a Visa or Mastercard to your wallet for those trips.

Debit cards and other payment methods at Sam's Club

If you don't want to use a credit card, Sam's Club accepts debit cards on the same networks—Visa debit, Mastercard debit, American Express debit, and Discover debit all work. You can also pay with cash, and some locations accept mobile payment apps like Apple Pay and Google Pay, though this depends on the individual warehouse's equipment.

Sam's Club does not accept personal checks, and they do not accept payment plans or layaway. Your membership card is required to enter the warehouse and shop, but it is not a payment method—you still need to bring a separate form of payment to the register.

How credit card rewards work at Sam's Club

When you use a rewards credit card at Sam's Club, the purchase counts toward your card's rewards just like any other purchase. If your card earns 1% cash back on all purchases, you'll earn 1% on your Sam's Club transaction. If your card has a higher rewards rate for specific categories like groceries or gas, check whether Sam's Club purchases fall into those categories—this varies by card issuer.

Some credit cards offer bonus rewards at warehouse clubs, so if you shop at Sam's Club regularly, it's worth checking whether your card has a higher earning rate there. You don't need to do anything special to earn the rewards; they post automatically when the transaction clears.

Frequently Asked Questions

Can I use a Sam's Club membership card as a payment method?

No. Your membership card gets you into the warehouse, but you still need a separate payment method at checkout—a credit card, debit card, or cash. The membership card and the payment card are two different things.

Does Sam's Club accept prepaid credit cards?

Yes, as long as the prepaid card runs on Visa, Mastercard, American Express, or Discover. Prepaid cards work the same way as regular credit cards at the register. Just make sure the card has enough balance to cover your purchase.

What if my credit card is declined at Sam's Club?

A decline usually means your card issuer flagged the transaction as suspicious, your card has expired, or you've reached your credit limit. Contact your card issuer to find out why. You can also pay with a different card, a debit card, or cash to complete your purchase right away.

Can I use an international credit card at Sam's Club?

If your international card runs on Visa, Mastercard, American Express, or Discover, it should work at Sam's Club. However, your card issuer may charge a foreign transaction fee. Check with your bank before traveling to the United States if you plan to use an international card.