How do I activate the Harper Earn 15% back on a single purchase, up to a total of $21?

Log into your Amex account, navigate to offers, add the Harper offer to your card, then shop at Harper to earn rewards.

When does the Harper offer expire?

This Harper offer expires on March 21, 2026.

What Amex cards work with Harper offers?

Most Amex credit cards are eligible. Check your Amex account offers section.

Harper Earn 15% back on a single purchase, up to a total of $21 - Amex Credit Card Cashback Rewards Offer 2026

Offer Details

Merchant:

Harper

Description:

Earn 15% back as a one-time statement credit after using your enrolled eligible Card to make a single purchase online at harperwilde.com by 3/21/2026. Limit of 1 statement credit, up to a total of $21. See terms.

By enrolling in this offer, you agree to these terms and the Amex Offers Program Terms.

Eligibility and Enrollment

Enrollment is limited. Eligible Card Members must first add offer to their Card and then use same enrolled Card for qualifying purchases. Any Cards issued outside of the US are not eligible. Only Card Members who enroll are eligible; offers are non-transferable.

Limit of 1 statement credit per eligible Card Member account.

Qualifying Purchases

Offer valid online only at US website harperwilde.com. Not valid on orders shipped outside of the US. Purchases must be made in USD, and offer is only valid on purchases made directly with the merchant. Offer not valid on purchases made using third parties, such as resellers, delivery services, or other intermediaries.

Statement Credit

If you meet the offer requirements, the statement credit(s) will typically post to your account within 30 days after you make a qualifying purchase, provided that American Express receives information from the merchant about your qualifying purchase. In some circumstances, it may take up to 90 days after the offer end date for statement credit(s) to post. Please call the number on the back of your Card if credit(s) have not posted to your account 30 days after you made the qualifying purchase. Accounts that are canceled at the time of fulfillment of the offer will not receive the credit(s). Credit(s) may not be received or may be reversed if an eligible purchase is returned, partially returned, refunded, canceled or modified.

General

Amex Offers™ are available for varying and limited periods of time, are dynamic and personalized and may differ between Card Members. If you navigate away from the Amex Offers page, you may see different offers when you return. American Express reserves the right to modify or revoke the offer at any time.

Privacy

By enrolling in this offer, you agree that American Express may use your transaction and personal information to administer the offer, communicate with you about it, and facilitate your offers experience in accordance with the American Express Privacy Statement.

POID: K7YZ:0679

Bank:

Amex

Expires:

March 21, 2026

Added:

February 4, 2026

Seen on:

How to Get This Offer

Log into your Amex credit card account
Navigate to the offers or deals section
Add this Harper offer to your card with Offer.love extension
Shop at Harper using your enrolled card
Earn automatic cashback or statement credits

More Harper Offers

Amex Earn 15% back on a single purchase, up to a total of $21 US Bank Earn 10% cash back on your Harper Wilde purchase!Chase 10% cash back Get up to $14 back

View all Harper offers →

Recent Offers You Might Like

5% cash back Get up to $100 back

Zorba's Greek Cafe — Earn 5% cash back on all of your Zorba's Greek Cafe purchases, until a $100.00 cash back maximum is reached. Offer only applies to the following location: 1501 Preston Rd Plano, TX 75093 Offer expires 5/1/2026. Offer only valid on purchases made directly with the merchant. Offer not valid on purchases made using third-party services, delivery services, or a third-party payment account (e.g., buy now pay later). Payment must be made on or before offer expiration date.

Chase

Exp May 2

5% cash back

Hedley & Bennett — 5% cash back - Online only

Paypal

Exp Apr 8

1% cash back

Logitech — 1% cash back - Online only

Paypal

Exp Apr 8

10% back

Viori — 10% back - Online only

Paypal

Exp Apr 8

Earn 10% back on a single purchase, up to a total of $6

Round — Earn 10% back as a one-time statement credit after using your enrolled eligible Card to make a single purchase in-restaurant at Round Table Pizza or online at roundtablepizza.com by 4/30/2026. Limit of 1 statement credit, up to a total of $6. See terms. By enrolling in this offer, you agree to these terms and the Amex Offers® Program Terms. Eligibility and Enrollment Enrollment is limited. Eligible Card Members must first add offer to their Card and then use same enrolled Card for qualifying purchases. Any Cards issued outside of the US are not eligible. Only Card Members who enroll are eligible; offers are non-transferable. Limit of 1 statement credit per eligible Card Member account. Qualifying Purchases Offer valid in-restaurant and for food purchases made online at US website roundtablepizza.com and through the merchant mobile app. Dining or takeout/delivery orders must be processed directly by the merchant. Valid at participating locations in the US. Purchases made at shared-use locations (e.g., airports, hospitals, gas/truck stops, military bases or universities) may not qualify. Purchases must be made in USD, and offer is only valid on purchases made directly with the merchant. Offer not valid on purchases made using third parties, such as resellers, delivery services, or other intermediaries. Statement Credit If you meet the offer requirements, the statement credit(s) will typically post to your account within 30 days after you make a qualifying purchase, provided that American Express receives information from the merchant about your qualifying purchase. In some circumstances, it may take up to 90 days after the offer end date for statement credit(s) to post. Please call the number on the back of your Card if credit(s) have not posted to your account 30 days after you made the qualifying purchase. Accounts that are canceled at the time of fulfillment of the offer will not receive the credit(s). Credit(s) may not be received or may be reversed if an eligible purchase is returned, partially returned, refunded, canceled or modified. General Amex Offers® are available for varying and limited periods of time, are dynamic and personalized and may differ between Card Members. If you navigate away from the Amex Offers page, you may see different offers when you return. American Express reserves the right to modify or revoke the offer at any time. Privacy By enrolling in this offer, you agree that American Express may use your transaction and personal information to administer the offer, communicate with you about it, and facilitate your offers experience in accordance with the American Express Privacy Statement . POID: K7Z2:0897

Amex

Exp Apr 30

3% cash back

Thrive Causemetics — 3% cash back - Online only

Paypal

Exp Apr 8

5% cash back Get up to $100 back

Soul & Smoke - Evanston — Earn 5% cash back on all of your Soul & Smoke - Evanston purchases, until a $100.00 cash back maximum is reached. Offer only applies to the following location: 1601 Payne St Evanston, IL 60201 Offer expires 4/29/2026. Offer only valid on purchases made directly with the merchant. Offer not valid on purchases made using third-party services, delivery services, or a third-party payment account (e.g., buy now pay later). Payment must be made on or before offer expiration date.

Chase

Exp Apr 30