Costco Diaper Return Policy: Complete Guide


Costco is a great place to start for all baby-relate items.

They stock a great selection of everything your little one could ever need including a good selection of diapers from brands such as:

  • Huggies
  • Diaper Genie
  • Kirkland
  • Playtex Baby and
  • Rico

But what if you’ve purchased a bumper-sized pack of diapers and they’re the wrong size or are always leaking?

If this has happened to you then you’ll want to make a return.

To help you there we’ve covered exactly what Costco’s diaper return policy is and will talk you through how long you have to make a return, whether you can return used diapers, how to make a return, and much more.

Let’s dive in…

What is Costco’s Diaper Return Policy? The Short Answer

In short, you can return diapers to Costco at any time after purchase as part of their 100% satisfaction guarantee promise for a full refund or exchange.

Costco allows you to return diapers for pretty much any reason such as:

  • If they don’t fit
  • If they’re defective (leaking, causing skin irritation etc…)
  • Duplicate orders
  • Unwanted gifts
  • Mistaken orders
  • Wrong item
  • Changed your mind
  • Found them cheaper elsewhere

A simple way of checking the policy on items such as diapers it’s to simply go along to, find the item you’re looking for, click on it, and then go to the “Shipping & Returns tab”.

You will then see the policy for that item which looks like this:

Costco diaper return policy
You will note diapers are covered by the 100% satisfaction guarantee

Can You Return Worn Diapers to Costco?

Yes, you can return worn or used diapers to Costco.

They are extremely flexible in that regard.

However, we would advise you to refrain from making repeated returns for no good reason as this will likely end up with your membership card being flagged and suspended.

Our advice is to use Costco’s generous returns policy when you really need it.

How to Return Diapers to Costco?

You can return diapers either by taking them back to the Costco warehouse you purchased them from (or any other warehouse, use the warehouse locator). This is the fastest, albeit not the most convenient way to secure a refund/replacement.

The second method is to use the online mail-in returns process.

To initiate the mail-in process do this:

  1. Log into your Costco account
  2. Head over to the menu and choose Orders and Returns
  3. Pick the returns option and complete the necessary steps
  4. You will then be given an opportunity to print off a USPS returns label
  5. Place the label on the pack of diapers and drop them off at your USPS drop-off location

Does Costco Offer Free Returns Delivery When Returning Diapers?

Yes, Costco provides a USPS pre-paid label for all of its returns.

They also refund you you’re initial delivery charges and there is no re-stocking fee for diapers.

How Long Does it Take to Get a Refund from Costco for Diapers

diapers and bag

If you return them to your nearest Costco warehouse, your return should be processed there and then, and you should receive your money back in your account within a few days at most (depending on your bank or card issuer).

For returns made by mail, expect to wait up to 14 business days in our experience to allow time for returning shipping, for the return to be processed, and for your bank to be credited.

What is Costco’s Return Policy on Baby Wipes and Others Baby Accessories?

For other baby products such as:

  • Baby wipes
  • Dummies
  • Baby bottles
  • Formula
  • Baby tech such as baby monitors
  • Baby food etc…

The 100% satisfaction guarantee policy applies to all of these products even the electronics where the policy is normally reduced to 90 days for non-baby-related electronic items.

This means you can return any of these products at any time for a full refund or exchange.

How Does Costco’s Diaper Return Policy Stack Up?

We’ve taken a look at some of Costco’s competitors to see how their diaper returns policy holds up.

Here is what we found:

StoreReturns Window
Amazon90 days
Walmart90 days
Kroger30 days
Walgreens30 days
BJ’s12 months

Final Thoughts

Costco’s return-any-time return policy is the best out there and is pretty much unbeatable.

Their policy is renowned for being one of the most generous policies ever and providing you don’t abuse it, you’ll be able to return diapers and other baby goods for any reason, at any time, even if some of the items have been used.

They also provide free returns, no re-stocking fees, and even refund any original postage costs meaning Costco is an excellent place to source diapers, especially in bulk.

About the author

Oliver graduated from law school in 2008 and has practiced exclusively in the field of civil litigation for the last 10 years. He has a wealth of experience and expertise in litigation involving large financial losses and a special interest in consumer law. He has achieved numerous 7 figure settlements and has been involved in multi-billion dollar class-action consumer lawsuits against companies such as the Volkswagen Group. Away from the law, he is a consumer information and personal finance writer, having been featured in key publications such as Yahoo Finance, GO Banking Rates, NewsBreak, MEL Magazine, and many more.

-Chief Editor and Founder

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