Costco Return Policy

Verified 2026

Costco backs most merchandise with a no-time-limit "Risk-Free 100% Satisfaction Guarantee" — even years-old purchases can qualify — though electronics and appliances are limited to 90 days, and Costco will even refund your membership fee if you're dissatisfied.

Costco Will Refund Your Membership, Not Just Your Purchases

Costco's own official policy confirms it will cancel and refund your membership fee if you're not satisfied, on top of its no-deadline return policy for most general merchandise like clothing, household goods, and furniture. That's on top of a genuinely unusual exception: a diamond of 1.00 carat or larger requires a Jewelry Credit Memo and inspection of the original IGI/GIA certificate by a Costco Graduate Gemologist within 48 hours.

General merchandise	No time limit — clothing, household goods, and furniture can be returned even years after purchase
Membership fee	Fully refundable if you're not satisfied, per Costco's official policy
Electronics and major appliances	90 days from receipt — includes TVs, projectors, refrigerators over 10 cu. ft., computers, tablets, smart wearables, cameras, drones, camcorders, MP3 players, and cell phones
Diamonds (1.00 carat or larger)	Requires a Jewelry Credit Memo and inspection of the original IGI/GIA certificate by a Costco Graduate Gemologist within 48 hours
Tires and batteries	Sold with product-specific limited warranties rather than the standard return policy, due to limited useful life
Not returnable	Cigarettes and alcohol where prohibited by law, precious metals, Shop Cards, gift cards, airline tickets, and custom-ordered products

In-warehouse purchases must be returned at any Costco warehouse returns counter; online orders can go back at a warehouse or through Costco.com.

Frequently Asked Questions

Does Costco have a time limit on returns?

For most general merchandise, no — Costco's satisfaction guarantee allows returns even years after purchase. Electronics and major appliances are the main exception, limited to 90 days.

Can I get a refund on my Costco membership?

Yes. Costco will cancel and refund your membership fee if you're not satisfied, per its official policy.

How long do I have to return electronics to Costco?

90 days from the date you received the item, for TVs, computers, tablets, cameras, phones, and similar devices.

Can I return a diamond to Costco?

Diamonds of 1.00 carat or larger require a Jewelry Credit Memo and inspection of the original certificate by a Costco Graduate Gemologist within 48 hours.