Where You Can Actually Use a Sam's Club Credit Card

The Sam's Club Mastercard works almost everywhere Mastercard is accepted, but it gives you the best rewards inside Sam's Club

The Sam's Club Mastercard is a Mastercard, which means you can use it anywhere that takes Mastercard — at grocery stores, gas stations, restaurants, online retailers, and thousands of other places. You are not locked into shopping only at Sam's Club. However, the card is designed to reward you most heavily for purchases made at Sam's Club locations, so the real question is not whether you can use it elsewhere, but whether you should.

The card comes in two versions: the regular Sam's Club Mastercard and the Sam's Club Business Mastercard. Both work the same way outside Sam's Club — they function as a standard Mastercard. The difference is in the rewards structure and who the card is meant for. A personal member uses the regular version; a business owner uses the business version.

Key Takeaways

• Sam's Club Mastercard is accepted anywhere Mastercard is accepted, including online, at other retailers, and at gas stations.
• The card earns higher rewards rates (typically 2% to 5%) on Sam's Club purchases than on purchases elsewhere (typically 1%).
• You do not need to be inside a Sam's Club warehouse to use the card — it works at any merchant that accepts Mastercard.
• If you rarely shop at Sam's Club, a different rewards card may give you better value since the card's main benefit is the Sam's Club bonus rate.

How the rewards structure changes outside Sam's Club

The Sam's Club Mastercard earns rewards at different rates depending on where you spend. Inside Sam's Club warehouses and on Sam's Club's website, you earn a higher percentage back — this varies but is typically 2% to 5% depending on the card version and the category. On gas purchases (at any gas station), you earn a lower rate, usually around 1%. On all other purchases outside Sam's Club, you earn the lowest rate, typically 1% cash back.

This tiered structure means the card is most valuable if you do most of your spending at Sam's Club. If you use it primarily for groceries at other stores or everyday purchases outside the warehouse, you are earning the same 1% that many basic cash-back cards offer. You would not be taking advantage of the card's main benefit.

What happens when you use it at non-Mastercard merchants

Some retailers do not accept Mastercard — this is rare in the United States, but it does happen. A few gas stations, small local shops, or specialty stores may accept only Visa, American Express, or cash. If you encounter a merchant that does not take Mastercard, your Sam's Club Mastercard will be declined, just like any other Mastercard would be.

Sam's Club does not issue a Visa version of its card, so if you need a backup card for places that do not take Mastercard, you would need a separate card from another issuer. This is one reason some people carry more than one rewards card.

Using the card online and for recurring bills

You can use your Sam's Club Mastercard for online shopping at any retailer that accepts Mastercard — Amazon, Target, Walmart, and thousands of others. You earn the standard 1% cash back on these purchases (unless you are buying from Sam's Club's website, where the higher rate applies). The card works the same way as any other Mastercard for online transactions, including the security features and fraud protection that Mastercard provides.

You can also set up recurring bills with your Sam's Club Mastercard — utilities, subscriptions, insurance payments, and similar charges. The card will be charged automatically each month, and you will earn 1% cash back on those payments. This is a straightforward way to earn rewards on expenses you are already paying.

Comparing the Sam's Club card to other options

If you do not have a Sam's Club membership or do not shop there regularly, the Sam's Club Mastercard may not be the right choice. Many general-purpose rewards cards offer 1.5% to 2% cash back on all purchases with no warehouse requirement. The Sam's Club card's advantage only kicks in when you are shopping at Sam's Club, so the card makes sense primarily for people who already use the warehouse regularly.

If you do have a Sam's Club membership and shop there weekly or monthly, the higher rewards rate inside the warehouse can add up. A family that spends $200 per month at Sam's Club and earns 2% cash back is earning $4 per month, or roughly $48 per year, just from that one category. Add in gas purchases and other spending, and the card can pay for itself.

Annual fees and membership requirements

The Sam's Club Mastercard itself has no annual fee — you do not pay to carry the card. However, to shop at Sam's Club and earn the higher rewards rates, you need an active Sam's Club membership. A Sam's Club membership does have an annual cost, which varies by membership tier (Gold Star, Plus, or Business). This membership fee is separate from the credit card and is required whether you use the Mastercard or pay another way.

If you are considering the Sam's Club Mastercard, factor in the membership cost when deciding whether the rewards will be worth it. For someone who shops at Sam's Club regularly, the combination of membership and the card's rewards can make financial sense. For someone who shops there occasionally, the membership fee might outweigh the rewards you earn.

What to do if you need a card accepted everywhere

If you travel internationally or shop at retailers that do not accept Mastercard, the Sam's Club Mastercard alone may not be enough. Mastercard is widely accepted in most countries, but some regions prefer Visa or American Express. Similarly, some U.S. retailers — particularly small businesses or certain gas stations — may not take Mastercard.

Many people carry two cards for this reason: the Sam's Club Mastercard for everyday spending and rewards, and a Visa or American Express card as a backup. This gives you coverage at nearly every merchant while still letting you earn the Sam's Club rewards where they are highest.

Frequently Asked Questions

Can I use my Sam's Club Mastercard at Costco or other warehouse clubs?

Yes, your Sam's Club Mastercard is a Mastercard, so it works at any merchant that accepts Mastercard, including Costco. However, you will only earn the higher rewards rate at Sam's Club locations. At Costco or other retailers, you earn the standard 1% cash back.

What if my Sam's Club membership expires but I still have the card?

The card itself remains active and works as a Mastercard everywhere. However, you will not be able to enter a Sam's Club warehouse to shop, so you lose access to the higher rewards rates. You can still use the card online at Sam's Club if you renew your membership, or use it at other retailers for 1% cash back.

Do I earn rewards on Sam's Club membership fees?

No, membership fees are not may be able to access for rewards. Only purchases of merchandise and services inside the warehouse or on the Sam's Club website earn cash back.

Can I use the Sam's Club Mastercard internationally?

Yes, Mastercard is accepted in most countries worldwide. However, you may face foreign transaction fees depending on your card terms, and you will earn only the standard 1% cash back (or whatever rate applies to non-Sam's Club purchases). Check your card's terms for any international fees before traveling.