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.

Do items shipped from Japan qualify for discounts?

Yes, single item purchases from Japan are included in the promotion. However, bundled items shipped from Japan are not eligible for the discount.

Can I use the code on more than one purchase?

No; the code can only be used once per account.

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. We recommend adding it just before you're ready to purchase to avoid it expiring before use.

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, consider asking the seller to close the deal before your coupon expires.

Official Mercari Coupons & Promo Codes – Updated Offers (March 2026)

Q: Why isn't the code working even though the promo starts today?

The promotion follows Pacific Time. Check your local time against PT to ensure the promotion has started in your area (for example: PT 12:00 AM, MT 1:00 AM, CT 2:00 AM, ET 3:00 AM).

Mercari Coupons & Promo Codes (Official) – Updated March 2026

Shipping Promotion

Discounted shipping on eligible listings

Enjoy reduced prepaid label rates during the promotion window. Valid on qualifying listings*. *Terms apply.

Learn more →

Invite friends, earn Mercari credit

Share your unique invite link — when a friend completes their first purchase, you’ll both earn Mercari credit to spend on the marketplace*. *Terms apply.

Learn more →

Featured Deals

Shop All Deals →

Mercari has selected items with seller-applied discounts that satisfy certain selection criteria. Offer expiration times may vary. Deals are updated daily*. *Limited quantities available.

KPOP photocards and albums — featured deals

More Ways To Save

Make an Offer

Negotiate the price with sellers to get better deals — send a reasonable offer and watch for a quick reply.

Learn more →

Bundle It Up

Combine multiple items from the same seller to save on shipping — message the seller to request a bundle discount.

Learn more →

Latest Sitewide Promotions

How Promo Codes Work

A quick step-by-step guide to redeeming and using coupons on Mercari. For more information, visit the coupon guide here .

Step 1

Redeem your code

Go to ‘Settings’. Click ‘Coupons’ and apply the coupon to your wallet. You can only apply the coupon once during the promotional period and it will expire two days from issuance.

Step 2

Use the coupon

Once you add an eligible item to your cart, the coupon is applied automatically. Click checkout and confirm the coupon is applied before completing your purchase.

FAQs

I'm receiving an error message when applying a 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.

Do items shipped from Japan qualify for the discount?

It depends on the promotion. Please refer to the terms and conditions of the specific promotion.

Why isn't the code working even though the promo starts today?

Promotions follow Pacific Time. Please check your local time against Pacific Time to ensure the promotion has started in your area. For example:

PT: 12:00 AM
MT: 1:00 AM
CT: 2:00 AM
ET: 3:00 AM

Can I use a code on more than one purchase?

No; you can only use it once.

How long are coupon codes active for?

It depends on the promotion. Please refer to the terms and conditions of the specific promotion.

Do coupons work on pending Offers?

Coupons 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.