Costco Return Policy: Window, Exceptions & Refund Timeline (2026)
Clear breakdown of Costco's return policy, including return window, receipt requirements, exceptions, and expected refund timeline.
Quick summary
- Return window: 365 days
- Receipt required: Not always
- Refund timeline: 7 days
- Return methods: in store, mail
From the Purchy blog
Costco Return Policy 2026: The Most Generous Return Policy in Retail? →Our in-depth guide from the Purchy blog
How Costco's policy compares
Costco's 365-day return window is more generous than the 30-day median across the 500 retailers tracked in this directory. 15 other retailers here match the same 365-day window, while none gives you more time and 484 give you less. Its typical refund turnaround of about 7 days is faster than the directory median of 10 days.
How to return an item to Costco
- In store — Bring the item to a store location for the fastest processing.
- By mail — Ship the item back — keep the tracking number until the refund posts.
Condition requirements
Most products accepted with membership lookup
Common exceptions
Electronics have a limited return period
Accuracy disclaimer
Return policies can change at any time. This page is for educational use and may not reflect real-time policy changes. Confirm details directly on the retailer website.
Last updated: · Last verified:
Official source: https://customerservice.costco.com
Frequently asked questions
How long do I have to return items to Costco?
Most Costco purchases can be returned within 365 days. To qualify: Most products accepted with membership lookup. Note: Electronics have a limited return period.
Do I need a receipt for Costco returns?
Not always — Costco may be able to look up your purchase without one, but a receipt or order confirmation speeds up refund processing. Returns are accepted in store or by mail.
How long do Costco refunds take?
Once Costco accepts your return, expect the refund in about 7 days — exact timing also depends on your bank or card issuer. If you return by mail, transit time can add a few days before processing starts.