DEALHACK

agents@dealhack$fetch the freshest Costco codes…

13% Off Costco Coupons & Promo Codes September 2026

✓agent-verified & updated·

Today's Current Costco Promo Codes:

15 offers in total
DEAL

Get a $40 Digital Costco Shop Card

worked at checkout

Join as a new Executive Member and enroll in auto-renewal to receive a $40 Digital Costco Shop Card with this coupon.

  • saves ~$0.01
  • community
How We Verify This Code
19
code confidence
still worth a try
1 of 6
code checks worked
$0.01
median discount
0% of the cart
$2.21
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
DEAL

Get a $50 Digital Costco Shop Card

Join as a new Costco member online and enroll in auto renewal of your annual membership to receive a $50 Digital Costco Shop Card.

  • community
How We Verify This Code
5
code confidence
still worth a try

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
DEAL

New Costco Membership With Digital Shop Card Bonus

shoppers saved with it

New members who join online and enroll in auto renewal receive a $40 Digital Costco Shop Card for Executive or $20 for Gold Star.

  • saves ~$0.01
  • community
Offer Details
$0.01
median discount
0% of the cart
$190.04
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
FREE
SHIP

Free Shipping on Orders Over $75

Get free shipping on your online orders at Costco when you spend over $75. This offer is available for all members.

Get Deal
5%
OFF

Get 5% Off Your Current Purchase at Costco

worked at checkout

Save Up to 5% Off Any Order by Using This Costco Coupon at Checkout

  • saves ~$0.01
  • store issued
How We Verify This Code
1
code confidence
still worth a try
1
code check worked
$0.01
median discount
0% of the cart
$2,100.77
saved in total
across every cart we have seen

Code checks are run against real carts, including plenty this code was never eligible for: most codes only apply to certain products or need a minimum cart. We count the carts it worked on, not the ones it never fit.

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Costco published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
10%
OFF

10% Off Eligible Purchases at Costco

With this promo code, you can get 10% off on eligible Costco purchases.

  • saves ~$0.01
How We Verify This Code
24
code checks worked
$0.01
median discount
0% of the cart
$1.17
saved in total
across every cart we have seen

Code checks are run against real carts, including plenty this code was never eligible for: most codes only apply to certain products or need a minimum cart. We count the carts it worked on, not the ones it never fit.

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

use code
DEAL

Costco Merchant Services Sign-Up Promo

Business members who apply for Costco Merchant Services can access special pricing plus a promotional incentive like a statement credit.

use code
DEAL

Costco Member Prescription Program Limited-Time Pricing

Costco members can access special limited-time monthly pricing on select medications through the Costco Member Prescription Program.

Get Deal
DEAL

Targeted New Membership Promotions for Select Groups

Costco offers online membership promotions for new members in select groups like students, teachers, and military with Digital Costco Shop Card bonuses.

Get Deal
DEAL

Costco Email Sign-Up for Member-Only Deals

Sign up for Costco promotional emails to receive early notice of online and warehouse deals along with occasional targeted promo codes.

Get Deal
13%
OFF

Save 13% on Your Current Purchase (Costco Promo Code)

Redeem This Costco Coupon for 13% Off Any Order with Code at Checkout

  • community
Offer Details

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
5%
OFF

Up to 5% Off Any Purchase - Costco Promo Code

Save Up to 5% on Any Order by Using This Costco Coupon at Checkout

  • saves ~$53.00
  • community
How We Verify This Code
1 of 1
code checks worked
$53.00
median discount
6% of the cart
$53.00
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
5%
OFF

Save Up to 5% Off Your Current Order (Costco Promo Code)

Redeem This Costco Promo Code to Get Up to 5% Off Any Order

  • saves ~$54.49
  • community
How We Verify This Code
1 of 1
code checks worked
$54.49
median discount
7% of the cart
$54.49
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
$50
OFF

Save $50 Off Any Order with Discount Code

Save $50 on Any Order by Using This Costco Coupon at Checkout

  • saves ~$50.00
  • community
How We Verify This Code
1 of 1
code checks worked
$50.00
median discount
7% of the cart
$50.00
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
$55
OFF

Take $55 Off Your Current Purchase at Costco

Save $55 on Any Order by Using This Costco Promo Code at Checkout

  • saves ~$54.88
  • community
How We Verify This Code
1 of 1
code checks worked
$54.88
median discount
4% of the cart
$54.88
saved in total
across every cart we have seen

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code

Costco Shopping Info

Discounts

✓
Popup/Newsletter
Sign up for email to receive special member-only offers and news.
✓
Loyalty
Executive Membership Rewards Program

Shipping & Returns

✓
Free Shipping
Threshold: $75
✕
Intl Shipping
Online shipping is generally restricted to the domestic US market and specific regional territories.
✓
Free Returns
Window: Lifetime satisfaction guarantee on most items; 90 days for electronics and major appliances · Fee: Free
Final Sale
Cigarettes, alcohol, custom orders, tickets, and gold bars are typically non-returnable.

Payments

Cards
Visa, Mastercard
Wallets
Apple Pay
BNPL
Affirm
✓
Gift Cards

Costco Code Checks, Day by Day

Every Costco code check from the last 14 days, plotted by the day it ran. Green is how many came back working. Red is how many costco.com would not accept. That is the checkout testing you did not have to sit through yourself.

agents@dealhack: ~/signals --store costco.com --days 14
6,941
code checks run
29
checks where the code worked
0.4%
success rate
38
different codes tried
14 days · 6,941 code checks · 29 worked
workedpeak 6
would not applypeak 675
Daily coupon check results
DayCodes that workedCodes that would not applySuccess rate
15830%
25320%
15540%
23911%
35561%
24600%
15550%
06750%
25050%
64581%
24700%
45291%
36310%
0130%
where this data came from:
6,573 automated cart runs364 shoppers reporting back

364 of these results came from shoppers telling us whether a code worked; the rest come from automated checks and the other sources above. Last confirmed working on . Codes that stop clearing get pulled off this page automatically.

What These Numbers Mean

A code check is one result for one code. Most are our agents applying it to a real cart and reading the order total before and after; the rest come from tracked orders and from shoppers reporting back, as broken down above. Worked means the code was accepted and the total went down. Would not apply means costco.com refused it on that cart. That is not the same as the code being fake. The usual reasons are:

  • It expired or the store switched it off after it was published.
  • It was single-use and had already been redeemed.
  • It only covers certain categories, brands or individual products.
  • The cart did not reach a minimum spend.
  • It is limited to new customers, a first order, or an email sign-up.
  • It cannot be combined with an active sale or another code.
  • It is tied to a different country, currency or membership.

So a code that failed one check can still work on your cart, and the success rate (checks that worked divided by all checks) is best read as how easily Costco discounts apply in general, not as a verdict on any single code. Hover any bar in the chart to see that day on its own.

When Costco Runs Sales

Recurring events worth timing an order around. Windows shift year to year, so treat them as a shopping calendar rather than a fixed date.

  1. late November to late December
    Holiday Savings Event

    Features deep markdowns across electronics, jewelry, toys, and gift bundles both online and in warehouses.

  2. early January to late January
    New Year Home & Fitness Savings

    Offers special promotional pricing on fitness equipment, organizational goods, dietary supplements, and indoor furniture.

  3. mid-November to early December
    Holiday Season Savvy Savings

    Provides exclusive member-only warehouse and online discounts on major home appliances, laptops, and winter apparel.

Before You Buy at Costco

What shoppers ask most about Costco.

›Can promotional coupon codes be stacked on Costco.com orders?

Costco generally does not support promotional code stacking on online transactions, restricting carts to a single active coupon code per checkout session. Specific warehouse savings items apply automatically without requiring code entry.

›Which product categories or brands are excluded from site-wide promo codes?

Promotional codes never apply to Kirkland Signature fuel cards, digital gift cards, or select major appliances from brands like LG and Samsung. These items are strictly exempt from third-party or promotional discount codes.

›How is membership eligibility checked for online promotional redemption?

Promotion codes and online checkout privileges require active membership verification tied to your account email. Guest checkouts incur a 5 percent non-member surcharge and cannot access member-exclusive promotional discounts.

›How does the Executive Membership annual 2 percent reward program calculate earnings?

Executive members earn an annual 2 percent reward on qualified Costco, Costco.com, and Costco Travel purchases, capped at a maximum of $1,250 per 12-month period. Purchases made prior to upgrading your membership tier are excluded.

How We Verify Costco Codes

Nothing goes up here on trust. A Costco code is collected, applied to a real costco.com cart, dated the last time it took money off an order, scored on what came back, and pulled once it stops clearing. Promotions have no code to run through a checkout, so those are dated when they go live and dropped when they lapse. Here is how far that has got on this page, and every change the agents logged along the way.

agents@dealhack: ~/verify --store costco.com --log
collect15 Costco offers listed here: 11 codes you paste at checkout, 4 promotions that need none · 1 free shipping offer · 8 sent in by shoppers
test10 codes put through a live costco.com cart · last run
confirm4 of 11 codes took money off an order in the last 30 days · most recently
score3 codes rated on how likely they are to work · last recalculated
measure8 codes with a discount measured on real carts · $2,507 taken off in total
pruneexpired offers and dead codes drop off this page automatically

Recent Costco offer activity

Each entry is a change the agents logged on this page, dated to the day it happened.

  1. Code rescored on fresh results

    1 signal

  2. 4 codes rescored on fresh results

    1,532 signals read · odds of working recalculated

  3. Code worked on a live costco.com cart

    19/100 code confidence · 1 of 6 checks worked · 32 signals

  4. 5% off code retested at checkout

    applied to a live costco.com cart

  5. 4 new offers added

    1 to paste at checkout, 3 that need no code

  6. 2 codes worked on live costco.com carts

    each one took a discount off a real order

  7. New code added

    sent in by a shopper · 5/100 code confidence · 24 signals

The agents keep retesting every Costco code on this page. No one here vouches for a code they did not watch work. If one slips through expired, take the next on the list. We keep backups.

Help Other Costco Shoppers

Not every Costco code reaches us from the store. 8 codes on this page were first submitted by shoppers. They have also sent back 364 checkout results in the last 14 days, telling us which codes worked on a real cart and which came up empty. Wherever a code comes from, it still has to pass the same cart test before it goes up here.

34 hours
since a code sent in by a shopper last took money off a real costco.com cart
5%
of every check on this page came from a shopper, not an agent

Have a code we missed?

Send it over and the agents will run it through a real costco.com cart. If it works, it lands here with the test behind it.

Did a code work for you?

Open any Costco code above and tell us whether it worked. It takes one tap, no sign-up, and a code that keeps failing gets pulled off the page.

Rate a code

Costco Customer Support

Need help with your shopping? Here's what's available for Costco when an order, return, or promo code needs a human.

Phone

1-800-955-2292

Live chat

Available

Help center

www.costco.com/customer-service.html

Customer support is accessible through phone and live chat via the help center.

About Costco

Who you're buying from.

Brand Profile

Websitecostco.com
Founded1983
HeadquartersIssaquah, USA
ReferenceWikipedia
Follow Costco for sale alerts and new arrivals

Did You Know

Naming

Costco's private-label brand, Kirkland Signature, is named after the city of Kirkland, Washington, where the company maintained its corporate headquarters until 1996.

Founding

The very first Costco warehouse location opened its doors to business and individual members in Seattle, Washington, on September 15, 1983.

Origin Story

Costco's corporate lineage traces back to Price Club, which was founded by Sol Price in San Diego, California, in July 1976 before merging with Costco in 1993.

Stores Like Costco: Today's Best Coupons

These 12 stores sell products similar to Costco. Below you can see the best coupon or deal available at each one today, so you can compare prices before you buy. 9 of them have a promo code you can copy at checkout.

Fresh Roasted Coffee15% off

15% Off Fresh Roasted Coffee Orders

Shop Fresh Roasted Coffee and save 15% on eligible purchases with this coupon code.

  • store issued
Get Code
Blain's Farm & Fleet$10 off

Save $10 on Orders $100+ at Farm and Fleet

Take $10 off your Farm and Fleet order of $100 or more when you use this code.

  • store issued
Get Code
The Tea SpotFree shipping

Free Shipping on Orders $30+ at The Tea Spot

Apply this coupon code to get free shipping on The Tea Spot orders of $30 or more.

  • store issued
Get Code
Asda50% off

Take 50% Off Storewide at ASDA

Enjoy 50% off storewide at ASDA when you use this code.

  • store issued
Get Code
Tesco

Get £40 in Clubcard Points at Tesco

Enjoy £40 in Clubcard points when you purchase Tesco pet insurance directly with this code.

  • store issued
Get Code
My Patriot Supply

Shop the Deals: Marked-Down Emergency Food and Gear

My Patriot Supplys homepage highlights a Shop the Deals section with current sale prices on eligible products. Examples shown include discounted bundles and emergency gear with both current and comparison prices displayed.

Get Deal
Vinatis5% off

Get 5% Off Your Vinatis Order

Take 5% off on eligible Vinatis purchases when you use this discount code.

  • community
Get Code
Magic Spoon15% off

Get 15% Off Sitewide at Magic Spoon

Use this promo code to save 15% on sitewide Magic Spoon purchases.

  • saves ~$10.99
  • community
Get Code
Hungryroot40% off

40% Off First Order

Get 40% off your first Hungryroot order as a new customer when you apply this code at checkout; offer is for new signups and cannot be combined with other promotions.

Get Code
Hero Bread10% off

Get 10% Off Your Order at Hero

Enjoy 10% off your Hero order with this coupon code.

  • saves ~$6.34
  • community
Get Code
The Whisky Exchange

September Products of the Month: Savings on Select Spirits

Shop The Whisky Exchange September Products of the Month for discounted whiskies and spirits. Savings appear as reduced prices on featured bottles.

Get Deal
Weee!$10 off

Save $10 on Select Items Over $68

Get $10 off when you spend at least $68 on eligible items within the featured collection. The offer is time-limited, applies only to participating products, and may allow multiple redemptions per account depending on current terms.

Get Deal

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