Okay, Costco fam, sit down for this one, because it might be the biggest “wait, WHAT?” moment of your shopping year. Buried in Costco’s return policy is a little-known rule that basically hands you free money if a price drops after you’ve already checked out. It’s called the price adjustment policy, and according to some estimates, roughly 88% of eligible shoppers never bother to claim it. That’s a LOT of cash left sitting on the warehouse floor, and we are not about to let that be you.
We’ve already told you about the best days and times to shop for markdowns at Aldi, Costco, and Trader Joe’s, but this trick works even after you’ve already paid. Here’s exactly how it works, who qualifies, and how to actually get your refund.
What Is Costco’s Price Adjustment Policy?
Here’s the deal: if you buy something at Costco and the price drops within 30 days of your purchase, Costco will refund you the difference. No return necessary, no restocking hassle, no awkward customer service line with a cart full of stuff. You just ask, and if it qualifies, the money comes back to you.
“I purchased a coat for my son from Costco.com and paid $39.99, but not long after, it was on sale for $32.99. I just filled out the form online and received an email a couple days later that I was refunded the $7 difference. It is seriously the most amazing service that they offer!”
That’s the good news. The catches? The purchase has to be within that 30-day window, and if you bought it in-warehouse, you’ll need to request the adjustment at the same location where you shopped. Online orders and in-warehouse prices also don’t cross-match, meaning you can’t use a Costco.com sale price to get a refund on something you bought in the store, or vice versa.
The Sneaky Reddit Workaround
Because the online and warehouse price adjustments don’t talk to each other, some savvy shoppers on Reddit have found a workaround. If you spot the same item cheaper online after buying it in-warehouse, you can order it online at the lower price, then return your original in-warehouse purchase using that new online receipt once the order arrives. Just double check serial numbers on electronics so warranty info doesn’t get mixed up. Sneaky? A little. Effective? Reportedly, yes.
How to Actually Request Your Refund
For online purchases, head to Costco’s Price Adjustment Form, plug in your order info and the new lower price, and hit submit. Refunds typically post back to your card within three to five business days. For in-warehouse purchases, swing by the membership counter at the store where you bought the item, and pull up your receipt in the Costco app if you didn’t keep the paper copy (Orders & Purchases, then the “in-warehouse” tab).
One more perk worth knowing: this policy applies even during big sales events like Black Friday, when most other retailers freeze their price-match guarantees. So if you’re stocking up during a holiday haul, you’re still covered if the price dips again a few weeks later.
Combine It With Your Other Costco Money Moves
Price adjustments are just one piece of the Costco savings puzzle. Pair this trick with a smart Sunday meal prep haul so your big purchases are things you’ll actually use, and keep an eye on markdown timing like we outlined in our Aldi shopping secrets roundup — the same “shop smart, ask questions” mindset applies no matter which warehouse or aisle you’re in.
Bottom line: if you’ve bought anything at Costco in the last 30 days, it is worth five minutes of your time to check whether the price has dropped. Set a phone reminder, check your app, and go claim what’s already yours.
Have you ever scored a Costco price adjustment? Tell us how much you saved in the comments below, and keep it locked on GroceryGoodies.com for more shopping secrets your wallet will thank you for.
Photo credits: Image 1 — Mashed. Image 2 — Hip2Save.
