Cancellation guide

How to cancel Costco membership

A clear, step-by-step guide to cancelling your Costco membership membership, plus the things worth checking before you leave.

Before you cancel

  • There's no fixed contract, so you can cancel anytime. Your access simply runs to the end of the period you've paid for.
  • Expect to be offered a retention discount or loyalty deal to make you stay. If you're sure you want to cancel, stand your ground.
  • Cancel before your next renewal date to avoid being charged for another period.
  • Cancel from the account you actually pay with, and make sure you're the billing owner before you start.
  • Get a confirmation (on-screen or by email) and keep it as proof of the date you cancelled.

How to cancel Costco membership, step by step

  1. Only the Primary Member can cancel, bring your membership card or photo ID.
  2. In person: go to the membership counter at any Costco warehouse and ask to cancel, you get your fee refunded on the spot.
  3. By phone: call the Member Services Center on 1-800-774-2678.
  4. There is no online cancellation (you can join/renew/upgrade online, but not cancel).
  5. If a recent auto-renewal is the issue, use Costco's auto-renewal refund request form on its help pages.

Ways to cancel

By phone
1-800-774-2678

Notice, fees & cooling-off

Early-exit charge
None - full refund of membership fee at any time if dissatisfied (100% satisfaction guarantee)

4 Jul 2026