How to Cancel Costco Membership in 2026
Costco cancels at any membership desk or by phone and refunds 100% of the membership fee at any time — one of the most consumer-friendly cancellation policies of any membership.
Direct cancellation page
Go straight to Costco Membership's cancel page ↗
Cancel now ↗- Methods accepted
- In-personPhone
- Average time
- ~15min
- Effective in
- Immediately
If you hit a wall
Why this is harder than it should be
Costco is the rare membership that makes cancellation genuinely painless: you can cancel at any warehouse membership desk or by phone, and Costco's Risk-Free 100% Satisfaction Guarantee means it refunds the entire membership fee whenever you cancel — no proration, no retention script. The only friction is that there is no fully self-service online cancellation; you have to talk to a person at the desk or on the phone. Bring your membership card and the card used to pay the fee to speed up the refund.
Step-by-step
Verified June 25, 2026
- 01
Go to any Costco warehouse membership desk, or call Costco Member Services at 1-800-774-2678.
- 02
Ask to cancel your membership and request the prorated/full refund of your annual membership fee (Costco refunds 100% of the fee on cancellation).
- 03
Surrender or destroy the membership card. Keep any refund confirmation.
Refund policy
Costco refunds 100% of the membership fee at any time if you are dissatisfied — there is no proration penalty.
What to do if they refuse to cancel
If a warehouse gives you trouble, call Member Services (1-800-774-2678) and reference Costco's published Risk-Free 100% Satisfaction Guarantee on membership fees. If a refund you were promised never posts, dispute the charge with your card issuer and attach the cancellation confirmation. For unresolved issues you can also file with your State Attorney General, though Costco rarely requires escalation.
Frequently asked questions
Will Costco really refund my whole membership fee?
Can I cancel Costco online?
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Sources & verification (2)
Free guide
Your Rights as a US Digital Subscriber
A 22-page free PDF covering FTC Click-to-Cancel, chargebacks, state laws, and how to escalate when Costco Membership or anyone else refuses to honor a cancellation. Sent once. No spam.
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Educational only · Not legal advice · Verified June 25, 2026 · Report an error