Best Credit Card for Costco in 2026
We ranked major rewards cards by the rates and caveats we track for Costco. The top listed option shows up to 3% — review the notes before relying on it.
8 cards earning 2%+ at Costco · sorted by highest cash back · updated Q2 2026
Rankings use issuer/product-page reward terms where available. Rotating categories, legacy cards, and needs-review cards are labeled separately so old or uncertain offers do not look like normal applyable recommendations.
Why #1: Solid up-to-3% cash back option at Costco. No annual fee — easy to hold long-term.
Why #2: Earns 2.5% cash back on purchases including Costco. A reliable flat-rate option when category bonuses do not apply.
Why #3: Earns 2% cash back on purchases including Costco. A reliable flat-rate option when category bonuses do not apply.
Why #4: Earns 2% cash back on purchases including Costco. A reliable flat-rate option when category bonuses do not apply.
Why #5: Earns 2% cash back on purchases including Costco. A reliable flat-rate option when category bonuses do not apply.
Why #6: Earns 2% cash back on purchases including Costco. A reliable flat-rate option when category bonuses do not apply.
Why #7: Earns 2% cash back on purchases including Costco. A reliable flat-rate option when category bonuses do not apply.
Why #8: Earns 2% cash back on purchases including Costco. A reliable flat-rate option when category bonuses do not apply.
Frequently Asked Questions
What is the best credit card to use at Costco?
The top listed card at Costco right now is the Robinhood Gold Card, showing up to 3% cash back. 3% unlimited cash back on all purchases — no categories, no caps. ⚠️ Requires Robinhood Gold subscription ($5/mo). Effective rate is ~3% if you spend $6,000+/yr; otherwise the subscription cost reduces net earnings.
Does any credit card offer more than 2% at Costco?
Yes — the Robinhood Gold Card at 3%, the Alliant Cashback Visa® Signature Card at 2.5% all earn above 2% at Costco.
Best Credit Card for Costco (2026)
Costco rewards are trickier than a normal grocery-store recommendation because Costco warehouses only accept Visa credit cards, while Costco.com accepts more networks. The right answer depends on whether you shop in-warehouse, online, at Costco gas, and whether you already hold a legacy or existing-cardholder-only product.
Quick Answer
For in-warehouse Costco purchases, start with a Visa. The Costco Anywhere Visa by Citi is simple and earns 2% at Costco and Costco.com, but it is not automatically the highest-value card for every household. Flat-rate Visa cards can be just as reliable, especially if you want simpler rewards or faster redemption. Costco.com is different: it accepts Visa, Mastercard, and Discover, so online orders may open up other card options.
Top Cards for Costco
Costco Anywhere Visa by Citi — Simple Costco Option
The co-branded card gives 2% back on Costco and Costco.com purchases, plus higher rates on eligible gas, restaurants, and travel. Rewards are paid once per year as a certificate, so it is best for members who value a straightforward Costco-specific setup and are comfortable with annual redemption.
Flat-Rate Visa Cards — Reliable Backup
Cards like Wells Fargo Active Cash, Citi Double Cash, or other 2% flat-rate products can be strong options when they are available on a Visa network or when you are shopping online where Costco accepts more networks. They avoid quarterly categories and merchant-coding surprises.
Rotating-Category Cards — Use Only When the Terms Match
Chase Freedom Flex and Discover it can be useful when their current quarterly categories include the relevant Costco channel. But Costco warehouses are Visa-only, and Discover is not accepted in the warehouse. Treat rotating-category rates as conditional: activation, quarter, network acceptance, and spending caps all matter.
Legacy or Existing-Cardholder Products — If You Already Have Them
Some older or restricted cards may still earn attractive rates for people who already hold them. PennySwiper labels those separately because they should not be treated like normal new-applicant recommendations.
What to Know Before You Swipe at Costco
Visa only, in-store. Costco warehouses don't accept Mastercard, Amex, or Discover. If you show up with the wrong card, you're paying cash or debit. This is a hard rule — make sure your rewards card is a Visa before you shop.
Costco.com is different. The website accepts Visa, Mastercard, and Discover. If you have a non-Visa card that earns big rewards, you can still use it online — just not at the warehouse.
Gas station coding varies. The Costco gas station generally falls under "Costco purchases" for the co-branded card, but some third-party cards categorize it as auto & gas instead of wholesale clubs. Check how your card codes Costco gas before assuming you're getting the same rate.
Membership tier doesn't change your card rewards. Whether you have a Gold Star or Executive membership, your credit card cashback is separate from any membership-level rebates Costco offers.
Frequently Asked Questions
Does Costco accept Mastercard?
No. In-warehouse purchases are Visa-only. Costco.com accepts Mastercard, Visa, and Discover.
Is the Costco Anywhere Visa worth it?
It depends. It is simple and Costco-specific, especially if you also use Costco gas. But compare it against flat-rate Visa cards and any cards you already have, especially if you prefer monthly rewards instead of an annual certificate.
Does the Citi Custom Cash work at Costco?
Do not assume 5% at Costco. Citi Custom Cash bonus categories are limited and the card is not broadly available to new applicants. If you already have the card, check Citi's current eligible categories and your statement coding before relying on it for Costco.
When does Chase Freedom Flex have wholesale clubs?
Chase rotates categories quarterly and doesn't announce them all at once. Wholesale clubs typically appears once a year — check Chase's current calendar or sign up for category alerts.
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Search All Stores →Cash back rates are estimates and may vary. Rotating category cards require quarterly activation. Always verify rates with your card issuer before applying. Links on this page may be affiliate links — PennySwiper may earn a commission at no cost to you.