Costco Return Policy: No Deadline on Most Items, a Refund if You Are Not Satisfied
Costco has the most generous return policy in American retail: under its Risk-Free 100% Satisfaction Guarantee, there is no time limit on most merchandise — if you are not satisfied with a product, Costco will refund your purchase price. The main exception is electronics and major appliances, which must be returned within 90 days of the date you received them. The guarantee even covers your membership itself: Costco will cancel your membership and refund the fee at any time if you are dissatisfied. This guide covers the windows that do exist, how returns work in the warehouse and online, and the short list of items Costco will not refund.
Return Period
No time limit on most merchandise
Electronics
90 days from receipt
Membership
Fee refundable at any time
No Receipt
Returns are processed against your membership
Costco Return Windows at a Glance
| Category | Return window | Good to know |
|---|---|---|
| Most merchandise | No time limit | Covered by the 100% Satisfaction Guarantee — refund of the purchase price if you are not satisfied |
| Electronics and major appliances | 90 days | Counted from the date you received the merchandise |
| Cellular phones | 90 days | Return details vary by carrier service contract |
| Diamonds of 1.00 carat or larger | No standard window | Original paperwork required; authenticity inspection within 48 hours |
| Recreational carts ordered online | 90 days | Counted from the date you received the product |
| Tires and batteries | Product-specific warranty | Sold with their own limited warranties rather than the standard guarantee |
| Your Costco membership | Any time | Cancel and receive a refund of the membership fee if you are dissatisfied |
How to Return an Item to Costco
Costco keeps the mechanics simple: warehouse purchases go back to a warehouse, and online orders can go either way.
Return it to any warehouse
Take the item to the returns counter at any Costco warehouse — it does not have to be the location where you bought it. Products purchased at a Costco location must be returned this way. Costco.com products can also be returned to any of Costco’s warehouses, which makes the warehouse the fastest route for most online orders too.
Start an online return through Costco.com
Items ordered online can instead be returned by initiating a return through Costco.com. Sign in to your account, open the order and follow the return instructions for that item; large, freight-delivered items follow the freight return process described on the product and customer service pages.
Get technical help before you return electronics
For many electronics and appliances, Costco’s Technical and Warranty Services team offers free technical support and warranty information. If a product is misbehaving rather than simply unwanted, a call to that team can fix the setup problem — and if it cannot, they will walk you through your warranty and return options.
Is There Really No Time Limit on Costco Returns?
For most of the warehouse, yes. Costco’s published policy guarantees your satisfaction on every product it sells and promises to refund the purchase price, and it sets no deadline for ordinary merchandise. Clothing, furniture, kitchen goods, food and household items all sit under that open-ended promise, whether you bought them last week or last season.
Two honest qualifications:
- The guarantee is about satisfaction, not a free rental scheme. The policy is written around being dissatisfied with a product. Warehouses handle returns under that standard, and the exceptions below are firm.
- A few departments have their own rules. Eyeglasses go through the Optical Department, contact lenses have their own return route, hearing aids go through the Hearing Aid Center, and large freight-delivered items follow the freight return process.
Can You Return Opened or Used Items to Costco?
Yes — and this is a real difference from most retailers. Target’s policy, for example, is built around unopened items in new condition. Costco’s published guarantee contains no unopened or unused condition at all: it guarantees your satisfaction on every product sold. A kitchen appliance that underperforms, clothing that does not hold up, or food your household simply does not like all sit under the same promise, and the returns counter processes them under it.
The limits are the ones already covered: the 90-day window still applies to electronics and appliances whether they are opened or not, the non-refundable list stays non-refundable, and products like tires and batteries run on their own product-specific warranties rather than the satisfaction promise.
What Is the Return Window for Electronics and Appliances?
Electronics are the one place Costco imposes a deadline. Costco will accept returns within 90 days from the date you received the merchandise for:
- Televisions and projectors
- Major appliances: refrigerators above 10 cu. ft., freezers, ranges, cooktops, over-the-range and under-counter microwaves, range hoods, dishwashers, water heaters, washers and dryers
- Computers and touchscreen tablets
- Smart wearable devices
- Cameras, aerial cameras (drones) and camcorders
- MP3 players
- Cellular phones — with return details that vary by carrier service contract
After 90 days, the return door closes on these items, and problems are handled through the manufacturer warranty and Costco’s Technical and Warranty Services instead. Recreational carts ordered online carry the same 90-day window.
Can You Return an Item to Costco Without a Receipt?
Costco shopping runs on membership, and returns do too — every return is processed at the returns counter against the membership the purchase sits on, so the paper receipt is not the centerpiece of the process the way it is at other retailers. Bring your membership card, and for a Costco.com order, your account holds the order record you started the purchase with.
The practical advice is simple: the more of the purchase trail you can show — membership card, order confirmation, the card you paid with — the faster the counter can process you. And because the guarantee is written around member satisfaction, straightforward returns of ordinary merchandise are rarely a paperwork battle.
How Do Returns Work for Costco.com Orders?
You have two routes, and you can choose per item:
- Any warehouse. Costco.com products can be returned to any Costco warehouse — the returns counter handles them like warehouse purchases, which usually makes this the quickest option.
- Through Costco.com. You can initiate a return online instead and follow the shipping or pickup instructions given for that order. Large, freight-delivered items follow Costco’s freight return process rather than the standard parcel route.
Check the Shipping and Returns information on the product details page for anything unusual — a handful of online-only categories, such as contact lenses and recreational carts, have their own instructions.
What Items Can’t Be Returned to Costco?
The following are non-refundable under Costco’s published policy:
- Airline and live performance event items
- Precious metals
- Shop Cards
- Gift Card and ticket items
- Special Order Kiosk and Custom Installed Programs — custom products made to your personal specifications cannot be returned or refunded, except for warranty repair or replacement if they fail to meet specifications
- Cigarettes and alcohol — no returns where prohibited by law
Two categories get special handling rather than a straight refund:
- Diamonds of 1.00 carat or larger: you must present all original paperwork (IGI and/or GIA certificates) and you will receive a Jewelry Credit Memo; within 48 hours, Costco’s Graduate Gemologist inspects the diamond for authenticity.
- Tires and batteries: products with a limited useful life expectancy may be sold with a product-specific limited warranty instead of the standard guarantee.
How and When Will You Get Your Refund?
The guarantee is a refund of the purchase price: return an item under the policy and Costco refunds what you paid for it. Warehouse returns are processed at the returns counter, where the refund is arranged as part of the return itself. For returns initiated through Costco.com, the refund follows the return’s processing, and the time it takes to appear on your statement depends on your payment method and your card issuer — Costco’s policy does not publish a fixed day count, so keep your return documentation until the credit lands.
Membership refunds are the exception to every timing question: if you are dissatisfied, Costco will cancel and refund your membership fee at any time, and the membership counter can handle it on the spot.
What Does the Membership Guarantee Actually Cover?
The membership half of the guarantee is unusually strong, and it is the section of the policy most shoppers never read:
- Cancel at any time. “We will cancel and refund your membership fee at any time if you are dissatisfied” — there is no 30-day trial window or pro-rating schedule in the published policy.
- It covers every membership tier, because the promise is made to members generally, not tied to a card product.
- It is separate from merchandise returns. You do not need to return anything, or explain a product problem, to use it — dissatisfaction with the membership itself is enough.
Alongside it, the merchandise side adds Costco Technical and Warranty Services for many electronics and appliances: free technical support and warranty assistance that often resolves a problem without a return at all, and that members can use for eligible items after purchase.
Does Costco Extend Returns for the Holidays?
Costco does not publish a seasonal return extension — and with no deadline on most merchandise, it does not need one. The only dates that matter in December are the same ones that matter all year: the 90-day window on electronics and major appliances, counted from the date you received the item. A TV bought in November still has its full 90 days from receipt, which carries it well past the holidays.
How to Contact Costco About a Return
| Option | Details |
|---|---|
| Membership and warehouse phone | 1-800-774-2678 |
| Costco.com orders phone | 1-800-955-2292 |
| Customer service online | costco.com — Customer Service pages, including live chat |
| In person | The returns counter or membership counter at any Costco warehouse |
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Frequently Asked Questions
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Conclusion
Costco’s policy wins on simplicity: no deadline on most things, a refund of the purchase price if you are not satisfied, and a membership fee you can reclaim at any time. The whole policy really hangs on one date — 90 days for electronics and major appliances — and one short non-refundable list, so keep those in mind and almost everything else takes care of itself.
Disclaimer: Policy Return is an independent guide and is not affiliated with Costco. Return policies can change at any time; always confirm the current policy on Costco’s official website before making a return.
Checked against Costco’s published policy on 29 October 2026. Policies change; the retailer’s official page is the final word.
