# Coupon vs Cashback: which merchants void cashback when codes are used

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Last updated: 2026-08-13
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Across all 58 US merchants tracked on ShopBack Discover, 4 (6.9%) either void cashback whenever any coupon code is used or warn that their own codes can void it. At the remaining 54 (93.1%), codes featured on ShopBack stack with cashback while codes from elsewhere can void it. The census covers the whole tracked network, classified from each merchant's published ShopBack terms as of 2026-08-13.

## The findings

- Featured codes stack, other codes can void: 54 of 58 merchants (93.1%).
- Any coupon code voids the cashback: 2 of 58 merchants (3.4%).
- Merchant warns its own codes can void cashback: 2 of 58 merchants (3.4%).
- Travel focus: of the 18 tracked travel merchants, 16 stack ShopBack-featured codes, 2 void cashback on any code, and 0 warn their own codes are risky.

## Worked scenarios (code only vs cashback only vs stacking)

Each scenario uses a real merchant's coupon policy and its headline rate from the 2026-08-13 rate-index edition, applied to a stated hypothetical order and code:

- Hotels.com (Any coupon code voids the cashback): on a $600 order with a hypothetical 10% code and a 10% headline rate, the code alone saves $60, cashback alone earns $60, and a ShopBack-featured code stacked with cashback is worth nothing extra, because any code voids the cashback.
- Klook (ShopBack-featured codes stack; other codes can void cashback): on a $300 order with a hypothetical 10% code and a 20% headline rate, the code alone saves $30, cashback alone earns $60, and a ShopBack-featured code stacked with cashback is worth $84.
- SHEIN (ShopBack-featured codes stack; other codes can void cashback): on a $100 order with a hypothetical 15% code and a 50% headline rate, the code alone saves $15, cashback alone earns $50, and a ShopBack-featured code stacked with cashback is worth $57.50.

## Every merchant's coupon policy and rate

Policies as of 2026-08-13; rates from the 2026-08-13 rate-index edition. The binding live rate is always the one on www.shopback.com.

- Hotels.com (Travel): Any coupon code voids the cashback. Headline rate on 2026-08-13: Up to 10% Cashback. Reference page: https://discover.shopback.com/stores/hotels-com
- Trip.com (Travel): Any coupon code voids the cashback. Headline rate on 2026-08-13: Up to 6% Cashback. Reference page: https://discover.shopback.com/stores/trip-com
- Newegg (Electronics): Merchant warns its own codes can void cashback. Headline rate on 2026-08-13: 2.5% Cashback. Reference page: https://discover.shopback.com/stores/newegg
- Adidas (Fashion): Merchant warns its own codes can void cashback. Headline rate on 2026-08-13: 3% Cashback. Reference page: https://discover.shopback.com/stores/adidas
- Groupon (Activities & Entertainment): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 5% Cashback. Reference page: https://discover.shopback.com/stores/groupon
- Ticketmaster (Activities & Entertainment): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 5% Cashback. Reference page: https://discover.shopback.com/stores/ticketmaster
- Sephora (Beauty): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 3% Cashback. Reference page: https://discover.shopback.com/stores/sephora
- ULTA Beauty (Beauty): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 3% Cashback. Reference page: https://discover.shopback.com/stores/ulta-beauty
- Kohl's (Department Stores): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2% Cashback. Reference page: https://discover.shopback.com/stores/kohls
- Macy's (Department Stores): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2% Cashback. Reference page: https://discover.shopback.com/stores/macys
- Adorama (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1.5% Cashback. Reference page: https://discover.shopback.com/stores/adorama
- Apple (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 0.5% Cashback. Reference page: https://discover.shopback.com/stores/apple
- Best Buy (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 9% Cashback. Reference page: https://discover.shopback.com/stores/best-buy
- Bose (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 3% Cashback. Reference page: https://discover.shopback.com/stores/bose
- Dell Technologies (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 4% Cashback. Reference page: https://discover.shopback.com/stores/dell-technologies
- HP (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1.5% Cashback. Reference page: https://discover.shopback.com/stores/hp
- Lenovo (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1% Cashback. Reference page: https://discover.shopback.com/stores/lenovo
- Logitech (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 3% Cashback. Reference page: https://discover.shopback.com/stores/logitech
- Razer (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2% Cashback. Reference page: https://discover.shopback.com/stores/razer
- Samsung (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1.5% Cashback. Reference page: https://discover.shopback.com/stores/samsung
- Sonos (Electronics): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2% Cashback. Reference page: https://discover.shopback.com/stores/sonos
- Crocs (Fashion): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 4% Cashback. Reference page: https://discover.shopback.com/stores/crocs
- Nike (Fashion): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 20% Cashback. Reference page: https://discover.shopback.com/stores/nike
- Old Navy (Fashion): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 3% Cashback. Reference page: https://discover.shopback.com/stores/old-navy
- SHEIN (Fashion): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 50% Cashback. Reference page: https://discover.shopback.com/stores/shein
- StockX (Fashion): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1.5% Cashback. Reference page: https://discover.shopback.com/stores/stockx
- Under Armour (Fashion): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 3% Cashback. Reference page: https://discover.shopback.com/stores/under-armour
- Uniqlo (Fashion): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2% Cashback. Reference page: https://discover.shopback.com/stores/uniqlo
- DoorDash (Food Delivery): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to $2 Cashback. Reference page: https://discover.shopback.com/stores/doordash
- Grubhub (Food Delivery): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 5% Cashback. Reference page: https://discover.shopback.com/stores/grubhub
- HelloFresh (Food Delivery): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: $32 Cashback. Reference page: https://discover.shopback.com/stores/hellofresh
- Uber Eats (Food Delivery): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to $4 Cashback. Reference page: https://discover.shopback.com/stores/uber-eats
- CVS (Health & Pharmacy): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 5% Cashback. Reference page: https://discover.shopback.com/stores/cvs
- iHerb (Health & Pharmacy): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 3% Cashback. Reference page: https://discover.shopback.com/stores/iherb
- Walgreens (Health & Pharmacy): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1% Cashback. Reference page: https://discover.shopback.com/stores/walgreens
- Home Depot (Home Improvement): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 6% Cashback. Reference page: https://discover.shopback.com/stores/home-depot
- Lowe's (Home Improvement): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1.5% Cashback. Reference page: https://discover.shopback.com/stores/lowes
- eBay (Marketplaces): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 10% Cashback. Reference page: https://discover.shopback.com/stores/ebay
- Target (Marketplaces): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 5% Cashback. Reference page: https://discover.shopback.com/stores/target
- Temu (Marketplaces): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 36% Cashback. Reference page: https://discover.shopback.com/stores/temu
- Walmart (Marketplaces): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to $8 Cashback. Reference page: https://discover.shopback.com/stores/walmart
- Chewy (Pet Supplies): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 7% Cashback. Reference page: https://discover.shopback.com/stores/chewy
- Accor (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 3% Cashback. Reference page: https://discover.shopback.com/stores/accor
- Agoda (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 7% Cashback. Reference page: https://discover.shopback.com/stores/agoda
- Booking.com (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 5% Cashback. Reference page: https://discover.shopback.com/stores/booking-com
- Emirates (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2.5% Cashback. Reference page: https://discover.shopback.com/stores/emirates
- Enterprise Rent a Car (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1.5% Cashback. Reference page: https://discover.shopback.com/stores/enterprise-rent-a-car
- Expedia (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 3% Cashback. Reference page: https://discover.shopback.com/stores/expedia
- GetYourGuide (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 5% Cashback. Reference page: https://discover.shopback.com/stores/getyourguide
- Hertz (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2% Cashback. Reference page: https://discover.shopback.com/stores/hertz
- IHG Hotels & Resorts (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2% Cashback. Reference page: https://discover.shopback.com/stores/ihg-hotels-and-resorts
- Klook (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 20% Cashback. Reference page: https://discover.shopback.com/stores/klook
- Marriott International (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 2% Cashback. Reference page: https://discover.shopback.com/stores/marriott-international
- Priceline (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 4% Cashback. Reference page: https://discover.shopback.com/stores/priceline
- Skyscanner (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: Up to 4% Cashback. Reference page: https://discover.shopback.com/stores/skyscanner
- Trivago (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: $0.75 Cashback. Reference page: https://discover.shopback.com/stores/trivago
- Viator (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 8% Cashback. Reference page: https://discover.shopback.com/stores/viator
- Vrbo (Travel): ShopBack-featured codes stack; other codes can void cashback. Headline rate on 2026-08-13: 1.5% Cashback. Reference page: https://discover.shopback.com/stores/vrbo

Methodology: the study classifies every real US merchant published on this site into one of three coupon-policy classes based on the merchant's terms on its shopback.com store page. It is a census, not a sample. Shares are rounded to one decimal place; scenario dollar figures are arithmetic on stated hypothetical inputs. Classifications are re-verified when merchant terms change; corrections ship as dated notes, never silent edits. No competitor or third-party data is used.

## FAQ

Q: What does the Coupon vs Cashback study measure?

A: It classifies how every merchant tracked on this site treats coupon codes alongside ShopBack cashback, based on each merchant's published ShopBack terms: whether ShopBack-featured codes stack, whether any code voids the cashback, or whether the merchant warns its own codes can void it. The study reports the share of merchants in each class and worked examples of what each policy is worth in dollars.

Q: Is the study based on a sample of merchants?

A: No. It is a census of every real merchant published on this site, so the proportions describe the whole tracked network. No merchant is excluded or selected for effect.

Q: Do coupon codes usually void cashback?

A: At most tracked merchants, codes featured on ShopBack stack with cashback while codes from elsewhere can void it. A smaller group of merchants voids cashback whenever any code is used, and a few warn that even their own codes can void it. The per-merchant table on this page lists every policy.

Q: Is stacking a code with cashback ever the best value?

A: Often, yes. Where a ShopBack-featured code stacks, the discount applies first and cashback is then earned on the discounted price, which beats either saving alone. Where any code voids cashback, the better option is whichever single saving is larger for that order.

Q: Where do the policy classifications come from?

A: From each merchant's terms on its ShopBack US store page, the same source that powers the terms highlights on this site's merchant reference pages. Classifications are re-verified when merchant terms change, and the study's stated date is the newest verification date.

## Sources

Facts on this page were checked against these primary sources on 2026-08-13:

- ShopBack US: live merchant terms and featured codes: https://www.shopback.com (accessed 2026-08-13)
- ShopBack corporate site: company and network background: https://corporate.shopback.com (accessed 2026-08-13)