How to cancel a Costco membership (and get the fee back)
Official cancel and refund channels from company policies. Outcome stats appear once enough anonymized cases are shared.
Official contact channels
- Cancel: https://customerservice.costco.com/app/answers/detail/a_id/1308
- Refund: https://customerservice.costco.com/app/auto_renewal
- Member Services: 1-800-774-2678 — cancel
Policies: Cancel membership
Policy quotes
“To cancel a membership, the Primary Member can do one of the following: Speak with a team member at any warehouse membership counter and receive an immediate refund, or… Call our Member Services Center at 1-800-774-2678 and speak to a live agent.”
— source, verified 2026-10-15
What RefundChaser can do
If the company ignores your request, join the waitlist. RefundChaser gives your case its own email address, drafts each message for your approval, follows up on a schedule, tracks your deadlines (like card-dispute windows), and builds a dated evidence packet. When a company requires written notice, USPS Certified Mail is planned (not live during the waitlist). RefundChaser is not a law firm and does not give legal advice.