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5% Off Costco Coupons & Promo Codes August 2026

✓agent-verified & updated·August 13, 2026

Today's Current Costco Promo Codes:

19 offers in total
$10
OFF

Save $10 on Orders $35+ at Costco

✓ agent-testedexpires Aug 22

Get $10 off on qualifying Costco orders of $35 or more when you check out using this code.

agent score 85/100passed 2 of 1342 agent checks

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$1
OFF

Save $1 on Most Products (Costco Coupon Code)

✓ agent-testedexpires Aug 13

Use This Costco Promo Code for an Additional $1 Off on Most Products with Any Order

agent score 58/100passed 7 of 1265 agent checks

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5%
OFF

Get 5% Off Your Current Purchase at Costco

✓ agent-tested

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

agent score 4/100passed 5 of 1289 agent checks

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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
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.

agent score 1/100

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13%
OFF

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

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

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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

passed 1 of 1 agent check

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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

passed 1 of 1 agent check

use code
$50
OFF

Save $50 Off Any Order with Discount Code

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

passed 1 of 1 agent check

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$55
OFF

Take $55 Off Your Current Purchase at Costco

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

passed 1 of 1 agent check

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$10
OFF

Save $10 on Your Costco Purchase

Save $10 on Any Order of $35 or More at SameDay.Costco.com by Using This Costco Code at Checkout

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Other Costco Deals & Offers

DEAL

100% Off Any Purchase with Coupon Code

Use This Costco Promo Code for 100% Off Any Order

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35%
OFF

Up to 35% Off at Costco

Apply this discount code to save up to 35% on eligible Costco purchases.

passed 1 of 1 agent check

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$50
OFF

Score $50 Off at Costco

Use this discount code to score $50 off on eligible Costco purchases.

passed 1 of 1 agent check

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30%
OFF

Up to 30% Off at Costco

Enjoy up to 30% off on eligible Costco purchases when you use this discount code.

passed 2 of 2 agent checks

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25%
OFF

Save 25% on Bali Window Treatments

expires Aug 23

Save 25% on all Bali window treatments, including cellular shades and more; offer valid 7/27/26 through 8/23/26.

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30%
OFF

Up to 30% Off Storewide

expired

Enjoy significant savings on a wide range of products at Costco. This offer includes discounts on various items across the store.

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50%
OFF

Clearance Sale for Up to 50% Off

expired

Find deep discounts on clearance items at Costco. This sale includes a variety of products at significantly reduced prices.

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DEAL

New Arrivals: 15 Hot New Products This February

expired

Check out the latest new products at Costco, including self-care items, pantry essentials, and more.

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Costco Shopping Info

Discounts

✓
Popup/Newsletter
Special discounts and coupons via email newsletter
✓
Student
UNiDAYS, Student Beans, SheerID
✓
Loyalty
Executive Membership

Shipping & Returns

✓
Free Shipping
Threshold: Varies
✕
Intl Shipping
Costco.com primarily serves the US market; international shipping is generally not offered for standard online orders.
✓
Free Returns
Window: Unlimited (with exceptions) · Fee: Free
✓
Money-Back Guarantee
Any time
Final Sale
Customized items

Payments

Cards
Visa, Mastercard
Wallets
Apple Pay, Google Pay, Samsung Pay
BNPL
—
✓
Gift Cards

More Costco Savings Tips & Hacks

How to get the latest Costco promo codes and discounts

  • Sign up for Costco Wholesale’s free email newsletter to unlock exclusive deals only available to their online subscribers. By signing up, you will also get updates about new products and upcoming sales sent straight to your inbox!
  • Sign up for a Costco membership to get access to exclusive perks and privileges, including annual rewards, additional discounts on many Costco services, monthly subscription to the Costco Connection magazine, and more. When you sign up, you will receive two membership cards, for you and another member of your household.
  • Head to a Costco warehouse near you to take advantage of their in-store offers. Use the store locator on their website to find one in your area!
  • On the hunt for the latest Costco deals? Look no further! Here at Dealhack, we work hard to bring you the best offers from your favorite stores. You can also head to the deals page on Costco’s website to see all the ways you can save on your next purchase.
  • Apply for a Costco Credit Card to earn cash back rewards on gas, travel, dining, and other purchases!
  • Looking for new meal ideas? Costco has tons of quick and easy recipe videos you can check out.

Other Ways to Save at Costco

  • Costco Rewards Program: Sign up for a Costco membership to get access to exclusive perks and privileges, including annual rewards, additional discounts on many Costco services, monthly subscription to the Costco Connection magazine, and more.

How the Agents Verify Costco Codes

agents@dealhack: ~/verify --store costco.com
✓10 Costco promo codes tested against a live cart
✓5 total offers cleared for redemption at costco.com
✓last sweep completed August 7, 2026
✓expired & dead codes purged automatically
The agents re-test every Costco coupon on a schedule — no human vouches for a code they didn't watch work. If one slips through expired, just grab the next on the list. We keep backups.

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
Customer service for Costco.com inquiries.

Email

Not listed
Support is primarily handled via phone or live chat.

Live chat

Available
Available on the Costco website for member support.

Help center

customerservice.costco.com
Official help and contact page.

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