Costco 30-Day Price Adjustment Policy

The single most asked question about Costco's refund policy is the same one every time: how long does Costco actually give you to request a price adjustment?

The answer is 30 days. But the rules around when those 30 days start, what counts as a qualifying drop, and whether you can ever get an adjustment after the window closes are a lot less obvious than the headline number suggests.

This guide walks through the exact mechanics of the 30-day window, what happens if you miss it, and the practical strategy most members use to never leave money on the table. If you also want the broader policy overview, see our Costco Price Adjustments Explained guide.

The Short Answer: 30 Calendar Days

Costco's official price adjustment window is 30 calendar days from the date of purchase. If the item drops in price during that window, you are entitled to a refund of the difference.

• •Day 1: The date printed on your receipt.
• •Day 30: The last day Costco will honor the adjustment. Anything after this is a hard "no."
• •Calendar days, not business days: Weekends and holidays count.
• •The policy is uniform: The 30-day window applies to both warehouse and Costco.com purchases.

When Does the Clock Start?

For warehouse purchases, the clock starts on the day of the transaction. For online orders, there is a small but important nuance.

What Happens After 30 Days?

This is the question most members type into Google after they realize an item has gone on clearance: can I still get something back?

The honest answer is no—not as a price adjustment. Once 30 days have passed, the price difference is no longer refundable through Costco's standard policy. Even if the item drops by hundreds of dollars on day 31, you are out of luck for an adjustment.

That said, you still have one option:

• •Return and rebuy. Most Costco items have a generous return policy (electronics are 90 days; almost everything else is unlimited). If the item dropped significantly, you can return it and immediately buy it again at the new lower price. This is functionally a price adjustment, just with extra steps.
• •Caveat: The new lower-priced inventory must still be in stock at your warehouse. For clearance .97 items, this often means moving fast—stock disappears in days.
• •Member Services discretion: Anecdotally, some members report that Member Services has honored adjustments a day or two past 30 if the request is polite and reasonable. This is not policy and should not be relied on.

What Qualifies as a "Price Drop"?

Inside the 30-day window, three kinds of price drops qualify for adjustments:

• •Manufacturer's instant rebate / coupon book savings: When the monthly coupon book kicks in, items typically drop $5–$30. These adjustments are easy to claim and add up.
• •Clearance markdowns (.97 endings): When Costco wants an item gone, the price ends in .97. These can be huge—patio furniture dropping from $999.99 to $599.97 is not unusual. See our price tag guide for the full code.
• •Standard sales and member-only events: Items featured in promotional flyers or seasonal sale events count.

Things that do not qualify within the 30-day window: Costco Cash rewards, Executive Member 2% rewards, mail-in rebates, and competitor pricing. Costco does not match prices from other retailers—see does Costco price match? for the full picture.

In-Store vs. Online: Two Separate Windows

A critical detail most members miss: Costco treats the warehouse and Costco.com as two separate stores. The 30-day adjustment window applies within each channel, not across them.

That means:

• •If you bought it in the warehouse, the price must drop in the warehouse to qualify. A lower Costco.com price doesn't trigger an adjustment.
• •If you bought it online, the price must drop online. A clearance in the local warehouse doesn't trigger an adjustment.
• •This is why in-store and online clearances rarely line up—they're managed independently.

How to Actually Request the Adjustment

Why Most People Miss the Window

The 30-day window sounds generous until you try to use it. The realistic friction looks like this:

• •You don't remember what you paid for items 18 days ago.
• •You don't drive to Costco every few days to check current prices.
• •Clearance markdowns are warehouse-specific, so a national price-tracker website usually won't catch your local store's drop.
• •By the time you notice a drop in the next coupon book or a clearance email, the window has often already closed.

This is why we built CostLow: snap your receipt, and the app watches your local warehouse's prices for you. When something drops inside the 30-day window, you get a notification with the exact dollar amount you can claim. Walk in, get paid, leave.

Day-by-Day: A Realistic Timeline

Here's what a typical adjustment-eligible purchase looks like across the 30 days:

• •Day 1: Buy a $349.99 TV. Drive home. Forget the price within 48 hours.
• •Day 8: A new monthly coupon book kicks in. The TV is now $299.99. You don't notice.
• •Day 19: The TV gets bumped to clearance—$229.97. Three units left at your warehouse. You don't notice.
• •Day 31: You see the empty shelf where the TV used to be. You ask. Member Services says: too late.
• •Total lost refund: $120, all of which was rightfully yours.