No, your Sam's Club Mastercard will not work at Walmart for most purchases
The Sam's Club Mastercard is issued by Synchrony Bank and works as a standard Mastercard at any merchant that accepts Mastercard — including Walmart. However, the card's rewards and benefits are designed specifically for Sam's Club purchases, and you lose those perks when you use it elsewhere. At Walmart, your Sam's Club card functions like any other Mastercard, earning no bonus rewards and offering no special protections beyond what Mastercard itself provides.
The confusion often comes from the fact that Sam's Club and Walmart are both owned by Walmart Inc., but they operate as separate retail brands with separate payment systems. Sam's Club membership and the Sam's Club credit card are not interchangeable with Walmart or Walmart+.
Key Takeaways
- Your Sam's Club Mastercard will process at Walmart like any other Mastercard, but you earn no rewards on those purchases.
- Sam's Club cardholders earn 5% cash back on Sam's Club purchases and gas, 3% on dining and travel, and 1% elsewhere — those rates do not explore at Walmart.
- If you shop at both Sam's Club and Walmart regularly, you may want a separate card optimized for Walmart purchases to maximize rewards.
- Your Sam's Club membership card and your Sam's Club credit card are two different things; the credit card alone does not get you into Sam's Club.
How the Sam's Club Mastercard rewards structure works
The Sam's Club Mastercard earns cash back at tiered rates depending on where you spend. At Sam's Club locations and Sam's Club gas stations, you earn 5% cash back. On dining and travel purchases (including hotels, rental cars, and airlines), you earn 3% cash back. On all other purchases, you earn 1% cash back.
Walmart stores fall into that "all other purchases" category, so you would earn only 1% cash back there. For comparison, many general-purpose cash back cards earn 1.5% to 2% on all purchases, and cards designed for grocery or general retail often earn higher rates at those specific merchants. If you spend significantly at Walmart, a different card may give you better returns.
When it makes sense to use your Sam's Club card at Walmart
Using your Sam's Club Mastercard at Walmart makes sense if you do not have another card with you and need to make a purchase. It will process without issue. It also makes sense if you are working toward a sign-up bonus on the Sam's Club card — those bonuses typically count all purchases, not just Sam's Club purchases, during the first few months of card ownership.
Beyond those situations, you are better off using a card that earns higher rewards at Walmart or general retail. The 1% cash back on Walmart purchases is lower than what most competing cards offer, so the math does not favor using your Sam's Club card there as a strategy.
The difference between your Sam's Club membership card and your credit card
Sam's Club issues two separate cards: your membership card (which gets you into the warehouse) and your Mastercard credit card (which you use to pay). You need the membership card to enter a Sam's Club location. The credit card alone will not get you in.
If you have a Sam's Club Mastercard but no active Sam's Club membership, you can still use the credit card at Walmart or anywhere else Mastercard is accepted. However, you cannot use it to shop at Sam's Club itself — you would need an active membership card for that. Some Sam's Club memberships include a co-branded credit card as part of the package, but the credit card and membership are billed separately and can be cancelled independently.
Better alternatives if you shop primarily at Walmart
Walmart offers its own credit card through Capital One, called the Walmart Rewards Card. This card earns 3% cash back on Walmart.com purchases, 2% cash back at Walmart gas stations and Walmart stores, and 1% cash back everywhere else. If you spend most of your retail dollars at Walmart, this card will earn you more than the Sam's Club card.
Walmart also offers Walmart+, a membership program similar to Sam's Club but focused on Walmart stores and Walmart.com. Walmart+ members get free delivery on online orders, fuel discounts, and early access to online sales. Walmart+ and Sam's Club are separate memberships; you do not need one to use the other.
If you want a single card that works well at both Sam's Club and Walmart without switching, a general-purpose cash back card (earning 1.5% to 2% everywhere) will often beat the Sam's Club card's 1% rate at Walmart, though it will earn less than the Sam's Club card's 5% rate at Sam's Club itself.
What happens if you try to use your Sam's Club card at a Sam's Club self-checkout
At Sam's Club self-checkout, you can pay with your Sam's Club Mastercard like any other card. However, you still need to scan your membership card (or provide your membership number) before you can check out. The credit card is payment only; it does not replace the membership verification step.
Some Sam's Club members link their credit card to their membership account, which can streamline the checkout process, but this is optional and does not change how the rewards work.
Frequently Asked Questions
Will my Sam's Club credit card work at Walmart?
Yes. Your Sam's Club Mastercard will process at Walmart like any other Mastercard. You will earn 1% cash back on the purchase, which is the standard rate for non-Sam's Club, non-dining, non-travel purchases. There are no restrictions preventing you from using it there.
Do I need a Sam's Club membership to use the Sam's Club Mastercard at Walmart?
No. The Sam's Club Mastercard is a standalone credit card issued by Synchrony Bank. You can use it at Walmart or anywhere Mastercard is accepted without an active Sam's Club membership. However, you do need a membership to shop at Sam's Club itself.
What card should I use at Walmart to earn the most cash back?
The Walmart Rewards Card earns 2% cash back at Walmart stores and 3% on Walmart.com. If you shop at Walmart frequently, this will earn more than the Sam's Club card's 1% rate. If you split spending between Sam's Club and Walmart, compare the total rewards from each card across both stores to see which comes out ahead for your spending pattern.
Can I use my Sam's Club membership card as a payment method at Walmart?
No. Your Sam's Club membership card is for warehouse entry and membership verification only. It is not a payment card. You need a separate credit card, debit card, or other payment method to pay for purchases at Walmart or anywhere else.
Does using my Sam's Club card at Walmart count toward my Sam's Club rewards?
No. The 5% cash back on Sam's Club purchases only applies to transactions at Sam's Club locations and Sam's Club gas stations. Purchases at Walmart earn the standard 1% cash back rate, the same as any other non-Sam's Club purchase.