How do you set a profitable ROAS target for your ads?

Your break-even ROAS is 1 divided by your margin after product cost, platform fees and shipping. A product with a 25% margin needs a 4x return on ad spend just to break even; anything above 4x is profit. Set a target for each margin band, because one account-wide target will quietly lose money on your low-margin products.

Why is one ROAS target a problem?

A 4x target is profitable on a product with a 40% margin and loses money on one with 20%. Most accounts mix both, so a single target hides the losers inside a healthy-looking average.

How do you work out break-even ROAS?

Take the selling price, subtract product cost, marketplace or payment fees, fulfillment and shipping, and any expected returns. Divide what’s left by the price to get your margin. Then divide 1 by that margin.

• 40% margin: break-even ROAS of 2.5x
• 25% margin: break-even ROAS of 4x
• 15% margin: break-even ROAS of 6.7x

On Amazon, the same idea is expressed as break-even ACoS, which is simply your margin: a 25% margin means a 25% ACoS breaks even.

How do you put it into practice?

Group products into margin bands, give each band its own target, and review weekly. Move budget toward the bands that return the most profit, not the most revenue. New products can run below break-even for a set period while they collect reviews, as long as that’s a decision rather than an accident.

Does this work for service and lead generation businesses?

Yes, with cost per lead instead of ROAS. Work back from what a customer is worth: if one in five leads becomes a client worth $5,000 in gross profit, a lead is worth up to $1,000 before you lose money. Most businesses aim well under that.

Our paid ads team sets every budget this way on Google, Meta, TikTok and Amazon.