What is refund and return rate?
Nicklas Segatz Mortensen · Growth Hacker · Fractional CMO · Meta Ads Nerd · 8 July 2026 · 3 min.
Definition
Refund and return rate is the share of orders (or revenue) that end up returned or refunded in a given period.
Also called: Return rate, Refund rate, Return Rate, Refund Rate
Sådan virker det
Refunderings- og returraten er andelen af ordrer, der sendes retur eller refunderes. Den æder direkte af dækningsbidraget og forvrider ROAS, hvis den ignoreres — særligt i mode, hvor returrater kan være tocifrede. Den bør regnes med som en variabel omkostning.
01Why returns have to be in the equation
A return cancels the sale but still costs: shipping both ways, handling, possible loss of value, and payment fees that aren't always refunded. Leave the return rate out, and ROAS, contribution margin and CLTV all look better than they are — and the bidding optimizes toward a profit that partly gets sent back.
In some categories — fashion and footwear especially — the return rate can be double-digit and vary sharply by product and size. There it's not a detail, but one of the heaviest variable costs there is.
02Returns as a margin and data lever
Treat expected returns as a variable cost in contribution margin (CM2), so break-even ROAS and the profit signal to the ad platforms reflect reality. If you can feed return-adjusted value back to Meta and Google, they bid on what actually stays sold — not on what was put in the cart.
The return rate itself can also be lowered: better size guides, more accurate product photos and descriptions, and catching patterns per product (specific items or sizes that get returned more often). Every percentage point less return is pure margin.
Frequently asked questions
Why do returns distort my ROAS?+
Because ROAS measures the revenue attributed at purchase — not net of what's later sent back. At high return rates, ROAS therefore overstates the real value. Count returns as a variable cost in contribution margin.
How do I lower the return rate?+
With better size guides, accurate photos and descriptions, and by analyzing which products and sizes get returned most, so the problems can be fixed at the source. Every avoided return is pure margin.
Related terms
Glossary
What is contribution margin?
Contribution margin is revenue minus the variable costs (cost of goods, shipping, fees, returns). It's the amount each order contributes toward covering fixed costs and creating profit.
Read the entry →Glossary
What is ROAS?
ROAS (Return on Ad Spend) is the revenue generated by ads divided by ad spend. A ROAS of 4 means €4 in revenue for every ad euro — but says nothing about what you actually keep.
Read the entry →Glossary
What is gross margin?
Gross margin is gross profit as a percentage of revenue — that is, revenue minus cost of goods, divided by revenue. Sell for €100 with €40 in cost of goods, and gross margin is 60%.
Read the entry →
Nicklas Segatz Mortensen
Growth Hacker · Fractional CMO · Meta Ads Nerd at Oaksmond
Growth hacker and fractional CMO with 10+ years' experience and hundreds of millions in managed ad spend behind him. Background from larger Danish and international scale-ups, and from the agency world.
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