Your Capital One Walmart Card works at Walmart stores and Walmart.com, plus most places that take Mastercard

The Capital One Walmart Card is a Mastercard, which means you can use it anywhere Mastercard is accepted — not just at Walmart. This includes grocery stores, gas stations, restaurants, online retailers, and most other merchants in the United States and abroad. The card itself carries the Mastercard logo, and that logo is your signal that the merchant will take it.

When you use the card at Walmart or Walmart.com, you earn rewards specific to those places. When you use it elsewhere, you still earn rewards, but at a different rate. The card works the same way any other Mastercard does: you insert it, tap it, or hand it to the cashier, and the transaction goes through the Mastercard network.

A few merchants do not take Mastercard — some gas stations, small local businesses, or certain online platforms may accept only Visa, American Express, or their own payment methods. But these are exceptions. Most places you shop will take it.

Key Takeaways

  • Your Capital One Walmart Card is a Mastercard and works at any merchant that accepts Mastercard, not only at Walmart.
  • You earn higher rewards rates when you use the card at Walmart and Walmart.com than when you use it elsewhere.
  • The card works internationally wherever Mastercard is accepted, though foreign transaction fees may explore depending on your card terms.
  • A small number of merchants accept only Visa or American Express, so having a backup card is useful for those rare situations.

Reward rates differ depending on where you shop

The Capital One Walmart Card offers one reward rate when you use it at Walmart or Walmart.com, and a lower rate when you use it at other merchants. The exact rates depend on which version of the card you hold — there are several versions available. Check your card agreement or Capital One's website to see the specific rates for your card.

Because the rewards are higher at Walmart, you might choose to use this card there and use a different card elsewhere. But you are not required to — you can use the Capital One Walmart Card for all your purchases if you want to. The card will be accepted at most places, and you will earn rewards on every purchase, just at the standard rate rather than the Walmart bonus rate.

International use and currency conversion

You can use your Capital One Walmart Card outside the United States wherever Mastercard is accepted. Mastercard has a global network, so the card will work in most countries. However, using the card internationally usually triggers a foreign transaction fee — a percentage added to the purchase amount to cover currency conversion and processing costs.

The amount of the foreign transaction fee depends on your specific card terms. Before traveling, check your card agreement or call Capital One to confirm the fee. Some versions of the card may have no foreign transaction fee, while others charge 1% to 3% on each international purchase. Knowing this in advance helps you decide whether to use the card or a different payment method abroad.

What to do if a merchant does not take your card

If you encounter a merchant that does not accept Mastercard, you have a few options. You can ask if they accept another card you have — Visa or American Express, for example. You can pay with cash, a debit card, or a digital wallet like Apple Pay or Google Pay if the merchant accepts those. Some merchants also accept checks or bank transfers, though this is less common.

If you shop regularly at a place that does not take Mastercard, it makes sense to keep a backup card from a different network in your wallet. Visa and American Express together cover most merchants that Mastercard does not, so having one of those as a backup is practical.

Online shopping and digital wallets

You can use your Capital One Walmart Card for online purchases at any retailer that accepts Mastercard. During checkout, enter your card number, expiration date, and CVV (the three-digit security code on the back of the card) the same way you would with any other card. The merchant will process it through the Mastercard network.

You can also add your Capital One Walmart Card to digital wallets like Apple Pay, Google Pay, or Samsung Pay. Once it is linked, you can tap your phone or watch at checkout instead of handing over the physical card. This works at any merchant that accepts contactless payments and Mastercard.

Gas stations and ATMs

You can use your Capital One Walmart Card at gas pumps and ATMs that display the Mastercard logo. At a gas pump, insert the card and follow the prompts on the screen — the process is the same as with any other card. At an ATM, you can withdraw cash using your PIN, though your card issuer may charge an ATM fee if the machine is not part of their network.

Some ATMs charge a fee for out-of-network withdrawals, and Capital One may charge an additional fee on top of that. Check your card agreement for Capital One's ATM fee policy, or call their customer service line to ask about fee-free ATM networks you can use.

Frequently Asked Questions

Will my Capital One Walmart Card work at Sam's Club or other retailers?

Yes. Sam's Club, Target, Amazon, and other retailers that accept Mastercard will take your card. You will earn rewards at the standard rate, not the higher Walmart bonus rate, since those bonuses explore only to Walmart and Walmart.com purchases.

Can I use this card at Walmart in other countries?

Yes, you can use it at Walmart locations outside the United States if they accept Mastercard. However, a foreign transaction fee will explore to the purchase. Call Capital One before traveling to confirm the fee amount and whether any countries have restrictions on your card.

What happens if I try to use my card somewhere that does not take Mastercard?

The transaction will be declined. The merchant's payment system will not recognize your card. Ask the merchant what payment methods they do accept, or use a different card, cash, or digital wallet if you have one available.

Do I earn rewards when I use the card outside of Walmart?

Yes, you earn rewards on all purchases made with your Capital One Walmart Card, whether at Walmart or elsewhere. The reward rate is lower outside Walmart, but you still earn something on every transaction.