Your Discount Looks Profitable Until the Returns Come Back

Your Discount Looks Profitable Until the Returns Come Back

Almost every promo report you've ever seen is gross of returns. That's a problem, because returns aren't a footnote in ecommerce. The National Retail Federation's 2025 data put online returns around 19% — roughly one in five orders — with apparel deep in the 20–40% range and categories like electronics far lower.

And discounts don't just ride along with returns. They drive them.

How discounts inflate return rates

1. Bracketing. A shopper buys three sizes because the sale makes trying cheap. Keeps one, returns two. The "order" counted as a conversion; two-thirds came back.
2. Stretch baskets. Free-shipping thresholds and percent-off push shoppers to add items they don't really want. Stretch items return at higher rates than planned purchases.
3. Lower commitment. A discounted purchase carries less psychological ownership. Something bought cheap feels returnable in a way full-price doesn't.

The same promo that lifts conversion often lifts the return rate with it. Watch one without the other and you'll mistake a loser for a winner.

The math: gross vs. net

A promo generates 1,000 orders at $80 AOV — $80,000 gross, 40% margin.

• At a 12% return rate (typical control), expect ~120 returns.
• If the promo cohort returns at 18%, that's ~180 returns — 60 extra.

Each extra return costs you the margin you booked ($80 × 40% = $32) plus processing and restocking (say $8): about $40.

60 extra returns × $40 = ~$2,400 of return drag — before you count the discount itself. On a promo that "created" a few hundred orders, that can erase the entire incremental contribution.

Refund rate ≠ return rate

Measure the right thing:

• Return rate = items/orders sent back (operational).
• Refund rate = dollars actually refunded (financial). Exchange-for-credit reduces refunds without reducing returns.
• Keep rate = net retained revenue ÷ gross revenue. This is the number that matters.

Optimize for keep rate, not take rate.

What to do

1. Report every promo net of refunds. Gross AOV is a vanity line. Net retained revenue is the P&L.
2. Segment by return propensity. Size-variable apparel, multi-variant carts, and stretch add-ons return more. Don't put your highest-return SKUs at the center of a discount.
3. Price free returns as a cost, not a feature. They're part of the conversion math — book them.
4. Rank recommendations for keep-rate, not click-through. A rec that converts and gets returned is worse than one that never converted.

The takeaway

A discount that looks profitable gross and loses net of refunds isn't a growth tactic. It's a transfer to the returns department.

Measure every offer net of refunds — and aim incentives at the orders most likely to be kept, not just the ones most likely to convert.