How do discounts affect profit margin on Shopify?

A discount subtracts directly from profit, so the damage scales with your margin. On a 30% net margin, a 10% discount removes about a third of the order's profit; on a 20% margin, half.

How do I see how much I give away in discounts on Shopify?

Easy Profit Calculator's discount erosion report totals discounts given in a period, shows the share of gross revenue, splits it by discount type, and ranks your top codes by cost.

Are my discount codes worth it?

Compare what a code gave away against the orders it actually won. If the share of revenue going to discounts climbs while order volume does not, the codes are cutting price for people who would have bought anyway.

Can a discount make an order lose money?

Yes, especially stacked with free shipping and payment fees on a low-value order. The negative-profit orders report lists every order that ended up below zero, so you can see which discounts caused it.

All use cases

Use case - discounts

How discounts affect your Shopify profit (and how to measure it)

Short answer

A discount comes out of your profit, not your revenue, which is why small codes do outsized damage: on an order with a 30% net margin, a 10% discount removes roughly a third of the profit. Whether a code pays off depends on how much extra volume it wins versus how much margin it gives away, and most stores never measure that second half. A discount report that shows the give-away as a share of revenue, per code, is how you find out.

How it works

Do the margin math first

Take your net margin, not your gross. A store keeping 20 cents per dollar that offers 10% off is handing over half its profit on every discounted order. Written as a rule: discount percent divided by net margin percent is the share of profit you give away.

Measure what you are actually giving away

Total discounts given, the share of gross revenue that represents, and the split across discount codes, automatic discounts and manual discounts. If that share is climbing month over month, promotions are quietly becoming your biggest cost.

Rank your codes by what they cost

A handful of codes usually carry most of the give-away. Rank them by total discount given, then ask of each: did this code win orders that would not have happened anyway, or did it just cut the price for people who were buying regardless?

Find the orders a discount pushed underwater

The worst case is a discount stacking with free shipping and a payment fee until the order loses money. A negative-profit orders report lists exactly those, so you can see which codes create them.

What you get

Discount erosion report: total given, share of gross revenue, by type
Top discount codes ranked by what they cost you
Profit on discounted vs full-price orders, on every plan
Negative-profit orders report to catch discounts that sink orders
A free plan for up to 100 orders a month

Why discounts hit profit harder than revenue

Revenue math and profit math tell two different stories about the same code. A 10% discount on a $100 order costs $10 of revenue, which sounds survivable. But if that order carried $70 of costs, the profit was $30, and the same $10 is a third of it. The thinner your margin, the more violent this gets.

This is also why "did the sale work?" cannot be answered from the revenue graph. A promotion that lifts sales 20% while giving away 15% of gross revenue in discounts has probably lost money on the month, and the revenue graph will still look great.

The three places discount damage hides

Codes applied to orders that were happening anyway are the biggest leak: a returning customer who would have paid full price finds a 15% code in a browser extension, and the margin is gone with nothing bought in return.

Stacking is the second: a discount combined with free shipping you absorb, on a low-value order, with the payment fee on top, can push the whole order below zero. Those orders hide inside good-looking totals until something lists them individually.

And manual discounts are the third: staff-applied price cuts at POS or in draft orders rarely get reviewed. Easy Profit Calculator's suspicious orders queue flags staff discount abuse and price overrides specifically because this leak is so common.