Costco Gas Accepts Credit Cards, But Only Costco Cards
Costco gas stations take credit cards, but only one kind: a Costco credit card. You cannot use Visa, Mastercard, American Express, or Discover at the pump or inside the gas station kiosk. If you try to insert or tap a regular credit card, the pump will decline it.
This restriction applies everywhere Costco operates gas stations — whether you are filling up in California, New York, or any other state. The policy is the same at every location. Costco enforces this to control costs and pass savings to members.
If you do not have a Costco credit card, you can still buy gas using a debit card or cash. Debit cards work at Costco gas pumps the same way they do at other gas stations. You can also pay inside the kiosk with cash, though some locations require you to prepay before pumping.
Key Takeaways
- Costco gas pumps accept only Costco-branded credit cards, not Visa, Mastercard, American Express, or Discover.
- Debit cards and cash work at Costco gas stations even if you do not have a Costco credit card.
- The Costco Visa card offers cash back on gas purchases, which is one reason Costco limits pump access to its own card.
- You must be a Costco member to buy gas at Costco, regardless of which payment method you use.
How the Costco Credit Card Works at the Pump
The Costco Visa card is the only credit card accepted at Costco gas stations. This card earns cash back on every gallon you pump — currently 4% cash back on gas purchases at Costco stations, though this rate can change. The card also earns cash back on other Costco purchases and warehouse visits.
You do not need to own a Costco Visa card to be a Costco member. Membership and the credit card are separate. Many members use debit cards or cash at the pump and never open a Costco credit card account. The card is optional, but if you want to use a credit card at the pump, it is your only choice.
The Costco Visa card is issued by Citi. You can open an account online through Costco's website or ask for an process at the membership desk. The card arrives by mail within one to two weeks. Once you have it, you can use it at any Costco gas station worldwide.
Why Costco Does Not Accept Other Credit Cards
Costco's policy of accepting only its own credit card at gas pumps is deliberate. The warehouse chain uses this restriction to keep gas prices low for members. When Costco accepts only its Visa card, the company negotiates lower processing fees with Citi than it would if it accepted multiple card networks.
Those savings flow back to members in the form of lower gas prices. Costco's gas is typically cheaper than nearby competitors, and the credit card restriction is one reason why. The company prioritizes member savings over payment convenience at the pump.
This policy also reduces fraud and theft at unmanned pumps. Costco can control which transactions go through and monitor the Costco Visa card more closely than it could if dozens of card types were accepted.
Paying With Debit Cards and Cash Instead
If you do not have a Costco Visa card, use your debit card at the pump. Debit cards work like they do at any other gas station — insert the card, enter your PIN, and pump. Most Costco gas stations accept debit cards without issue.
Cash is also accepted. At some Costco locations, you prepay inside the kiosk before you pump. At others, you can pump first and pay after. The process varies by location, so ask the attendant when you arrive. Prepayment is more common at busy stations.
Neither debit cards nor cash earn you any rewards or cash back. If you pump gas at Costco regularly, the 4% cash back from the Costco Visa card can add up over time, even though you cannot use it anywhere else.
Membership Requirements for Buying Gas
You must have an active Costco membership to buy gas at any Costco station, regardless of how you pay. The membership requirement applies whether you use a credit card, debit card, or cash. Costco checks your membership status before allowing you to pump.
Costco offers two main membership tiers: Gold Star and Executive. Gas prices are the same for both. The difference is in warehouse shopping benefits and annual fees, not in gas access. If your membership has expired, you cannot pump gas until you renew.
Some Costco gas stations are located outside the warehouse building, but you still need a membership card to access them. You will need to show your membership card or have it scanned before you can use the pump.
What Happens When You Try a Non-Costco Card
If you insert a Visa, Mastercard, American Express, or Discover card into a Costco pump, the pump will reject it. The transaction will not go through. You will see an error message on the pump screen telling you the card is not accepted.
This happens when ready — you do not have to wait or call anyone. The pump straightforward will not allow the transaction to begin. If this happens to you, you have two options: use a debit card instead, or go inside the kiosk and pay with cash.
Some members are surprised by this restriction because most gas stations accept all major credit cards. Costco's policy is unusual, but it is consistent across all locations and all card types except the Costco Visa.
Opening a Costco Credit Card for Gas Purchases
If you want to use a credit card at Costco gas pumps, you will need to open a Costco Visa account. You can start the process online at Costco.com or in person at the membership desk. The process takes about 10 minutes.
Citi will review your process and let you know within a few minutes whether you are approved. If approved, your card ships by mail and typically arrives within one to two weeks. You can start using it at the pump as soon as it arrives.
There is no annual fee for the Costco Visa card. You only pay interest if you carry a balance month to month. The 4% cash back on gas is automatic — you do not have to enroll or set up anything once the card is open.
Frequently Asked Questions
Can I use my regular Visa or Mastercard at Costco gas?
No. Costco gas pumps accept only the Costco Visa card, not regular Visa or Mastercard. If you try to use another card, the pump will decline it. You can use a debit card or cash instead.
Do I need a Costco membership to get the Costco credit card?
Yes. You must be a Costco member to open a Costco Visa card. Membership and the credit card are linked to the same account. If your membership expires, your card remains active for other purchases, but you cannot use it at the gas pump.
What if I do not want to open a credit card — can I still buy gas?
Yes. You can pay with a debit card or cash at any Costco gas station. You do not need a credit card at all. The only requirement is an active Costco membership.
Does the Costco credit card work at gas stations outside Costco?
The Costco Visa card works like a regular Visa at other merchants and gas stations. However, you only earn the 4% cash back rate on gas purchased at Costco stations. Gas at other pumps earns a lower cash back rate.
What if my Costco credit card is lost or stolen?
Contact Citi when ready to report the card. Citi will cancel it and send you a replacement card by mail, usually within one to two weeks. In the meantime, use a debit card or cash at the Costco pump.