Mercari Summer Deal Sale: use code SUMMERDEAL10 for 10% off one eligible purchase (July 31 - August 3, 2026). Terms apply.
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Frequently asked questions
I'm receiving an error message when applying the promo code. What does it mean?
- "This code has already been used": Any Offers or purchases in progress will claim the coupon – check your existing offers and adjust as necessary. Remember the code can only be used once.
- "Coupon code already redeemed. Coupon will auto-apply if eligible": Your 10% off* coupon is in your wallet and available to use on a qualifying purchase.
- "This promotion has not started yet. Please try back later.": Check your local time compared to Pacific time.
Why isn't the code working even though the promo starts today?
The promotion follows Pacific Daylight Time (PDT). Please check your local time against PDT to ensure the promotion has started in your area. For example:
- PDT: 12:00 AM
- MDT: 1:00 AM
- CDT: 2:00 AM
- EDT: 3:00 AM
Can I use the code on more than one purchase?
No; you can only use it once.
How long is my coupon code active for?
The coupon will expire two (2) days after it’s added to your account. You can track the expiration countdown on your Mercari home tab.
The code can only be applied to your account once, so we recommend adding it just before you're ready to purchase or make an offer to avoid it expiring before use. To avoid surprises, try to complete your purchase soon after applying the coupon.
The code can only be applied to your account once, so we recommend adding it just before you're ready to purchase or make an offer to avoid it expiring before use. To avoid surprises, try to complete your purchase soon after applying the coupon.
Does the coupon work on pending Offers?
The coupon will only apply to purchases completed while the coupon is active. If you have a pending offer with a seller, consider sending a chat message to encourage them to close the deal before your coupon expires.
*Official terms and conditions: Between Friday 07/31/26 12:00 am PDT and Monday 08/03/26 11:59 pm PDT (“Promotion Window”), apply promo code SUMMERDEAL10 to receive a coupon which will be applied to your account for 10% off the item price(s) in a single purchase, excluding taxes and fees. Users are eligible to redeem the promo code one (1) time only. The coupon will expire two (2) days after issuance. Taxes and the Buyer Protection Fee are calculated based on the original item price. If a user has their account suspended or limited by Mercari for any reason, including for violating the Mercari Terms of Service, the offer will be revoked and void. The promo code cannot be combined with any other coupons. Offer is not transferable among accounts and may not be duplicated. Mercari reserves the right to update or alter these terms at any time, with or without notice.