Costco Rewards Certificates Have an Expiration Date

Costco Rewards Certificates do expire. The certificate itself will show an expiration date printed on the front, and you cannot use it at the register or online after that date passes. Most Costco members receive certificates that expire one year from the issue date, though the exact timeline depends on the promotion or membership tier that generated the certificate.

Once a certificate expires, Costco will not replace it or extend the date. The money on the certificate is lost if you do not use it before the expiration date. This is why checking the date on your certificate as soon as you receive it matters — you need to plan your shopping around that important date.

Key Takeaways

  • Costco Rewards Certificates expire one year from the issue date, and the expiration date is printed on the front of the certificate.
  • You cannot use an expired certificate at checkout, either in-warehouse or online, and Costco will not refund or replace it.
  • The certificate works like a discount voucher — you hand it to the cashier or enter the code online, and the amount is deducted from your total.
  • If you are unsure whether your certificate is still valid, check the date on the certificate itself or ask a Costco employee at the membership desk.
  • Setting a phone reminder for two weeks before the expiration date gives you time to plan a shopping trip and use the certificate.

How to Find the Expiration Date on Your Certificate

The expiration date is always printed on the front of the physical certificate. Look for a line that says "Expires" or "Valid Through" followed by a month and year. The date is usually in the upper right corner or along the bottom edge of the certificate.

If you received the certificate by mail and cannot find it, check your email for a digital copy or confirmation message from Costco. Some promotions send certificates electronically, and the expiration date will be listed in that email or on the digital version you can display on your phone at checkout.

Using Your Certificate Before It Expires

To use a Rewards Certificate in-warehouse, bring it with you to Costco and hand it to the cashier at checkout. The cashier will scan or manually enter the certificate number, and the amount will be deducted from your total purchase. You do not need to do anything special — treat it like a coupon or discount code.

To use a certificate online at Costco.com, enter the certificate code during checkout in the "Promo Code" or "Certificate" field. The system will show you the discount amount before you complete your order. If the code does not work, the certificate may have already expired or the code may have been entered incorrectly — double-check the number and the expiration date.

You can use a Rewards Certificate on any purchase at Costco, including groceries, household items, or gas. There are no restrictions on what you buy, so you have flexibility in when and how you spend it.

What Happens If Your Certificate Expires

Once the expiration date passes, the certificate becomes invalid. The cashier's register will reject it, and you will not be able to use it online either. Costco does not offer refunds, replacements, or extensions for expired certificates under any circumstances.

If you realize your certificate has expired after you have already thrown it away or lost it, contact the Costco membership desk or call your local warehouse. They can look up your membership account and confirm whether the certificate was used or if it expired unused. However, they cannot reissue the certificate or credit your account with the amount — the money is gone.

Certificates from Different Membership Tiers and Promotions

Gold Star members and Executive members both receive Rewards Certificates as part of their annual membership renewal, and both types expire one year from the issue date. The amount varies — Executive members typically receive a larger certificate — but the expiration timeline is the same.

Promotional certificates issued during special offers or seasonal promotions also expire one year from the date printed on the certificate. Some limited-time promotions may have shorter expiration windows, so always check the fine print when you receive a promotional certificate.

If you are unsure which type of certificate you have or when it expires, the membership desk can tell you by looking up your account. Bring your membership card or provide your membership number.

Setting a Reminder So You Do Not Forget

The easiest way to avoid losing a certificate to expiration is to set a phone reminder for two weeks before the date. This gives you enough time to plan a shopping trip without rushing. You can also take a photo of the certificate and store it in your phone's notes app so you always have the expiration date visible.

Some members write the expiration date on their calendar or set a recurring reminder if they receive certificates regularly as part of their membership renewal. The few minutes it takes to record the date can save you the full value of the certificate.

Frequently Asked Questions

Can Costco extend my certificate if I ask nicely?

No. Costco's policy does not allow extensions or exceptions for expired certificates, even if you have been a member for many years. The expiration date is firm, and once it passes, the certificate cannot be used or replaced.

What if I used my certificate but the cashier did not scan it?

If you paid full price and did not receive the discount, ask the cashier to check the receipt. If the certificate was not applied, you can return to the membership desk with your receipt and the certificate, and they can process a refund or explore the certificate to a future purchase — as long as the certificate has not expired.

Do Costco gift cards expire the same way certificates do?

No. Costco gift cards do not expire and can be used at any time. Rewards Certificates are different from gift cards and have a one-year expiration date. Make sure you know which one you have.

Can I use an expired certificate if I have not opened it yet?

No. The expiration date is based on the issue date, not when you open or first use the certificate. An unopened certificate that has passed its expiration date is still invalid.

Where do I enter the certificate code if I am ordering online?

During checkout at Costco.com, look for a field labeled "Promo Code," "Discount Code," or "Certificate Code" — the exact label varies depending on your browser and device. Enter the certificate number from the front of your certificate, and the discount will show before you complete your order.