- Short answer
- Yes, a code can apply on top of a sale price. No Help Center page we read offers an exclude-sale toggle; aim it at a collection without sale items.
- At checkout
- Only the sale price shows; a code's savings show with a crossed-out price.
- Collection to avoid
- "Compare at price is not set" admits markdowns: one variant with an empty compare-at price lets the whole product in.
- Collection that holds
- A collection whose Tag condition does not include your sale tag, as long as the tag stays current.
- Without retagging
- Discount Function app (public on any plan; custom needs Shopify Plus); Shopify's example discounts only orders with no marked-down variant.
Does a code apply on top of a sale price?
Shopify says using sale prices is different from setting up discounts, and checkout shows only the sale price. A code that targets a marked-down product can still apply on top of the sale price; at checkout its savings show with a crossed-out price.
Shopify's Discounts by order report keeps them apart too: “Discounts aren't related to Compare-at prices.” For the markdown's display, see what compare-at price does.
How do you keep a discount code off sale items?
Limit the code with the discount's Applies to field, which targets specific products or collections — no Help Center page we read (the discounts section, collection conditions and sale-pricing pages, October 2026) describes a setting that excludes sale items.
- Discounts
- Create discount
- Amount off products
Tag your marked-down products, keep the tag current, and target a collection whose Tag condition does not include it. A collection's Exclude section won't take compare-at price: only the category, tag, type, and vendor condition types apply there.
- Products
- Collections
- Add collection
For products with only some variants marked down, individual variants can be added to a collection instead. A cart of only excluded items gets the “isn't valid for the items in your cart” message.
Can an app block codes on sale prices instead?
Yes, if it's built on the Discount Function API. Stores on any plan can use public App Store apps that contain functions; custom apps with Functions need Shopify Plus. Shopify announced discount rejection for Discount Functions on December 17, 2025, listing “Prevent double discounting on sale prices” among what merchants can do.
Shopify's example function discounts only orders whose variants don't have a compare-at price higher than the current price. This route suits catalogs whose markdowns change faster than you can retag.
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