No, the Sam's Club Mastercard will not work at Walmart stores
The Sam's Club Mastercard is designed specifically for Sam's Club members and can only be used at Sam's Club locations, Sam's Club gas stations, and online at samsclub.com. You cannot use it to pay at Walmart, Walmart.com, or any other retailer. If you try to swipe or insert the card at a Walmart checkout, it will be declined.
This is true even though Walmart owns Sam's Club. The two retailers operate as separate businesses with separate payment systems, membership bases, and rewards programs. Your Sam's Club card is tied to your Sam's Club membership account, not your Walmart account.
If you shop at both retailers regularly, you will need a separate payment method for Walmart — either a different credit card, a debit card, or the Walmart credit card if you want rewards at Walmart specifically.
Key Takeaways
- The Sam's Club Mastercard works only at Sam's Club locations and samsclub.com, not at Walmart or any other store.
- Walmart and Sam's Club maintain separate payment systems and membership programs despite common ownership.
- You can use any other Mastercard, Visa, or debit card at Walmart if you do not have a Walmart-specific card.
- Walmart offers its own credit card with rewards that work only at Walmart and Walmart.com.
- The Sam's Club card does work at Sam's Club gas stations, which are separate from Walmart fuel centers.
What the Sam's Club Mastercard actually covers
The Sam's Club Mastercard is a co-branded card issued by Synchrony Bank in partnership with Sam's Club. It is designed to give members rewards on purchases made within the Sam's Club ecosystem. You earn cash back or points on Sam's Club purchases, and the card comes with benefits like extended warranties and purchase protection — but only on items bought at Sam's Club.
The card works at any Sam's Club warehouse location in the United States, at Sam's Club fuel stations, and when you shop online at samsclub.com. Some versions of the card also offer introductory benefits like bonus cash back in the first few months of membership.
Outside of Sam's Club, the card is still a Mastercard, which means it can technically be used anywhere Mastercard is accepted — but only if you choose to use it that way. At Walmart, the payment terminal will recognize it as a Mastercard, but Walmart's system will not block it. The issue is that Sam's Club does not want you using their branded card elsewhere, and the rewards and benefits only explore to Sam's Club purchases.
Why Walmart and Sam's Club keep separate payment systems
Walmart owns Sam's Club, but the two operate as distinct retail brands with different customer bases and pricing strategies. Sam's Club is a membership warehouse, while Walmart is an open-to-the-public discount retailer. The membership model is central to Sam's Club's business — members pay an annual fee for access to bulk goods and lower prices. Walmart has no membership requirement.
Because of this structural difference, the companies maintain separate loyalty programs, rewards structures, and payment systems. The Sam's Club Mastercard is tied to your Sam's Club membership number, not your Walmart account. If you use the card at Walmart, Sam's Club would have no way to track the purchase or credit you with rewards, because the transaction would not be linked to your membership.
From a business standpoint, keeping the systems separate also protects each brand's pricing and promotional strategy. Sam's Club members pay for the privilege of lower bulk prices. Walmart customers do not. Mixing the two payment systems could blur that distinction.
What payment methods work at both retailers
If you want a single card that works at both Sam's Club and Walmart, you have a few options. Any standard Visa or Mastercard — whether from your bank, a general rewards card, or a different retailer — will work at both locations. A debit card linked to your checking account also works everywhere.
You can also use digital payment methods like Apple Pay, Google Pay, or PayPal at both retailers, as long as they are linked to a card or bank account that is accepted. Both Sam's Club and Walmart accept these mobile payment options at checkout.
If you want rewards specifically tied to Walmart purchases, Walmart offers its own credit card through Synchrony Bank. That card works at Walmart, Walmart.com, and Sam's Club — making it a genuine crossover option. However, the rewards structure is designed around Walmart purchases, not Sam's Club bulk buying.
Using your Sam's Club card outside the warehouse
Technically, because the Sam's Club Mastercard is a Mastercard, you can use it at any merchant that accepts Mastercard — including Walmart, gas stations, restaurants, and online retailers. There is nothing in the card's terms that prevents this. However, you will not earn Sam's Club rewards on those purchases, and you lose the benefits that come with the card.
If you do use it outside Sam's Club, you are essentially using it as a regular Mastercard with whatever standard benefits Synchrony Bank offers on non-Sam's Club purchases. Most versions of the Sam's Club card offer minimal or no rewards on purchases outside Sam's Club, so there is little incentive to use it elsewhere.
The practical reason not to use it at Walmart is straightforward: you will not get the cash back or points you would earn on a Sam's Club purchase, and you might as well use a card that does offer rewards at Walmart.
If you need a card that works at both places
The most straightforward solution is to carry two cards — your Sam's Club Mastercard for warehouse trips and a different card for Walmart. This is what most people who shop at both retailers do.
If you want to minimize the number of cards in your wallet, use a general-purpose rewards card from your bank or a card issuer like Chase or American Express. These cards typically work everywhere and earn rewards at most retailers. You will not get Sam's Club-specific bonuses, but you will earn something on every purchase.
Alternatively, if you shop at Walmart much more often than Sam's Club, the Walmart credit card might make more sense for you. It works at both locations, but the rewards are optimized for Walmart purchases. You would lose the Sam's Club-specific benefits, but you would gain Walmart rewards instead.
Frequently Asked Questions
Will the Sam's Club card be declined if I try to use it at Walmart?
No, it will not be declined because it is a valid Mastercard. The transaction will go through. However, you will not earn Sam's Club rewards, and you lose any special benefits the card offers. There is no practical reason to use it at Walmart when other cards will earn you rewards there.
Can I use my Sam's Club membership number at Walmart?
No. Your Sam's Club membership is separate from Walmart. Walmart does not have a membership program, so there is nothing to link your Sam's Club number to. You can shop at Walmart without any membership or account.
Does the Walmart credit card work at Sam's Club?
Yes, the Walmart credit card works at Sam's Club locations. However, you will not earn Walmart rewards on Sam's Club purchases — the rewards are designed for Walmart and Walmart.com only. Check your card's terms to confirm the exact rewards structure.
What happens if I use my Sam's Club card at Walmart by mistake?
The transaction will process normally because it is a valid Mastercard. You will not earn Sam's Club rewards, but you will not be charged any extra fees or penalties. You straightforward will not get the cash back or points you would earn on a Sam's Club purchase.
Can I link my Sam's Club card to my Walmart account?
No. Sam's Club and Walmart maintain separate account systems. Your Sam's Club card is linked only to your Sam's Club membership. You can create a Walmart.com account, but linking your Sam's Club card to it will not give you any special benefits or rewards.