$50OFF
$50 Off Orders Over $150
Apply this code in the promo field at Costco checkout. Excludes gift cards and third-party sellers unless stated otherwise.
Costco Promo Codes & Coupons — September 2026
Does Costco have a promo code right now?
Yes — there are 6 verified Costco promo codes and deals live for September 2026, with the best offer worth up to 60% off. Copy a code from the list below, paste it into the promo box at Costco checkout, and the discount applies before you pay.
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All Costco offers (5)
Codes first, then sitewide deals. Each one shows when we last saw it work.
20%OFF
Extra 20% Off Sale Items
Apply this code in the promo field at Costco checkout. Excludes gift cards and third-party sellers unless stated otherwise.
FREESHIP
Free Shipping On All Orders
Apply this code in the promo field at Costco checkout. Excludes gift cards and third-party sellers unless stated otherwise.
30%OFF
Up To 30% Off Best Sellers
Apply this code in the promo field at Costco checkout. Excludes gift cards and third-party sellers unless stated otherwise.
Get Deal
Did it work?
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DEAL
Military & First Responder Discount
Apply this code in the promo field at Costco checkout. Excludes gift cards and third-party sellers unless stated otherwise.
Get Deal
Did it work?
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How to use a Costco promo code
- Pick an offer below and select Get Code — the code copies and costco.com opens in a new tab.
- Build your cart at Costco as normal and continue to checkout.
- Find the promo, coupon or discount code field on the payment step.
- Paste the code and apply it. The order total updates on the spot.
- If it is rejected, come back and try the next code in the list.
About Costco discounts
Costco is one of the most searched warehouse clubs in the United States for everyday essentials, home goods and seasonal buys, which means the promo code pool moves fast. This page keeps every working Costco discount code in one place so you are not pasting dead codes at checkout.
We currently list 6 active offers. Codes sit above sitewide deals, and each entry shows its discount, any minimum spend, and the date it was last verified. The ordering reflects how recently an offer was confirmed as working, so start from the top and work down.
Beyond single-use codes, the reliable ways to save at Costco are seasonal sale events, the email sign-up discount for first-time shoppers, and the clearance section, which is often where a stacked promo code goes furthest. If you can wait, holiday weekends usually beat anything available mid-month.
Find Answers: Costco
The questions US shoppers ask about Costco discounts, answered directly.
Yes. We are tracking 6 live Costco offers for September 2026, and the strongest one currently saves up to 60%. Codes on this page are re-checked daily, and the working ones sit at the top of the list.
Copy the code from this page, add your items to the Costco cart, then paste it into the promo or discount box at checkout before you pay. The total updates immediately if the code applies to your basket.
The three usual reasons are an expired code, a minimum spend you haven't reached, or excluded items in the cart such as clearance, gift cards or third-party brands. Try the next code in the list, which is ordered by recent success rate.
Costco runs free shipping promotions regularly, usually above a minimum order value. Any free delivery offer that is live appears in the list above with a Free Shipping tag.
Most US retailers, Costco included, allow one promo code per order. You can normally still stack that single code with sale pricing, loyalty rewards and a gift card.
The deepest discounts land around Black Friday and Cyber Monday, with strong secondary events at Memorial Day, Fourth of July, Labor Day and the post-Christmas clearance in late December.
New shoppers can usually claim a welcome discount by signing up for the Costco email or SMS list. Any first-order code we can verify is listed on this page.
Every offer on this page carries a last-verified date. Our team re-tests the active list daily and retires codes that stop working, so the top of the list stays current.