How much discount should an upsell offer carry?
A discount is the easiest lever on an upsell offer, and the easiest to overuse. Every point of discount comes out of your margin on the added item, so the right number is the one that tips the decision without giving away more than it needs to.
Start from the margin, not the price
Work out what one sale of the offered product leaves you: price, minus cost of goods, minus payment fees, minus any extra shipping. The discount comes out of that amount, not out of the price.
An example, with round numbers. A product sold at $20 that costs you $8, with about $1 of payment fees and no extra shipping, leaves $11. A 15% discount costs $3 and leaves $8. A 40% discount costs $8 and leaves $3. The second offer will probably be accepted more often, but it has to be accepted almost three times as often to earn you the same.
Why a discount helps
- It gives a reason to decide now rather than later.
- It makes the offer feel tied to this order, not a permanent price.
- After payment, it reads as a small reward for a customer who has just bought.
When full price works
A discount is not always needed. Accessories the customer would have to buy anyway, such as batteries, filters, refills or care products, often sell at full price when they are shown at the right moment. Try those without a discount first; you can always add one later.
Percentage or fixed price?
A percentage is quick to set on any product and scales with the price. A fixed price, such as “$12 instead of $15”, is easier to read and lets you land on a clean number. Both work. Choose the one that gives the clearest message for that product.
Keep it honest
The reference price you show has to be the price you actually charge for that product in your store. Inflating it to make the discount look bigger is a practice consumer authorities in the EU and elsewhere take seriously, and customers notice when they check the product page.
Test the discount, not only the product
Two offers with the same product and different discounts make a good test. Compare them on revenue per view and on the margin left, not on acceptance rate alone. If 10% brings nearly as much as 25%, keep 10%.
Common mistakes
- Applying the same large discount to every offer, whatever the margin.
- Discounting products that already sell well at full price.
- Forgetting that a discount also sets an expectation for next time.
- Stacking the upsell discount on top of a store-wide sale without checking what is left.
In FlatUpsell
Each FlatUpsell rule carries its own discount: a percentage, a fixed price, or none at all. On the cart page, the discount is applied automatically at checkout, so the customer never has to type a code. After payment, the reduced price is shown before they accept.