Last updated: September 5, 2026
Most coupon problems are decided by the fine print before checkout ever starts. A headline such as “20% off” sounds simple, but the real offer may depend on the product, subtotal, customer type, region, timing or whether another promotion is already active.
Read the offer in this order
- What is eligible? Check products, brands, collections, sizes, subscriptions, bundles, sale items and gift cards.
- Who is eligible? Look for first-order, new-customer, member, student, app-user or account-specific requirements.
- What subtotal counts? Confirm how the merchant defines minimum spend.
- When and where is it valid? Check dates, time zone, country and storefront.
- Can it combine? Read one-code, one-use and “cannot be combined” language.
What “exclusions apply” actually means
It means the headline discount does not automatically cover every item. Exclusions may name specific brands, categories, sale items, bundles, subscriptions, gift cards or other products. “Sitewide” can still have exceptions if the terms list them.
If your cart contains both eligible and excluded items, the checkout may discount only part of the order. Always check which line items actually changed.
Minimum spend: use the qualifying subtotal, not the cart headline
A “$20 off $100” offer may require $100 of eligible merchandise, not $100 after tax, shipping or gift-card purchases. Another promotion can also lower the qualifying subtotal below the threshold.
Example: if your cart shows $108 but contains a $20 excluded item, the qualifying subtotal may be only $88. In that case the coupon can fail even though the cart total looks high enough.
Customer and location restrictions
New-customer and first-order offers are common, but they are not interchangeable. A returning customer using a new email address may still be ineligible if the merchant defines eligibility by account history, address, payment method or another rule. Regional storefronts can also have different promotions.
Timing language matters
Check the stated end date and, when relevant, the time zone. An old social post, screenshot or coupon page can remain online after the promotion has ended. The current merchant terms and checkout are more reliable than an undated third-party claim.
Stacking and one-use rules are different
“One per order,” “one per customer,” “single use,” and “cannot be combined” describe different limits. If you are trying to combine offers, read Can You Stack Coupons? before testing multiple discounts.
Fast fine-print checklist
- Eligible products and collections
- Excluded brands, sale items or gift cards
- Minimum qualifying subtotal
- New-customer or account requirements
- Country/storefront restrictions
- Start/end timing and time zone
- One-use or per-order limits
- Combination/stacking rules
- Return or final-sale consequences
If a code still fails after the terms look correct, use Why Promo Codes Don’t Work to troubleshoot the next likely cause. For the basic application process, see How to Use Coupon Codes Online.
Coupon, pricing, shipping and return terms can change. Confirm the merchant’s current terms and final order summary before completing a purchase.