Every week someone shows us an ad account with a “great” 3.2 ROAS that is quietly losing money. The number that would have caught it takes five minutes to calculate, and it is the first thing we teach in Week 1.
What breakeven ROAS actually is
Breakeven ROAS is the return on ad spend at which you make exactly zero profit. Above it, ads make money. Below it, every rupee of spend digs the hole deeper — no matter how good the dashboard looks.
Breakeven ROAS = 1 ÷ gross margin. A product with a 40% margin breaks even at 2.5 ROAS. A 3.2 ROAS on a 25% margin product is a loss.
The 5-minute calculation
- Take your selling price, subtract product cost, shipping, payment gateway fees and packaging. That is your contribution per order.
- Divide contribution by selling price to get your real margin — most founders overestimate this by 10–15 points.
- Breakeven ROAS is 1 divided by that margin. Write it on a sticky note. It does not change until your pricing does.
Why platforms never show you this
Meta and Google report ROAS because it is their best-looking metric. They do not know your margins, and they are not incentivised to ask. The gap between platform ROAS and breakeven ROAS is where most small ad accounts bleed out in their first 90 days.
In the cohort, no campaign goes live until its breakeven is written at the top of the launch doc. It is the cheapest discipline in performance marketing — and the least practised.