Break-even ROAS: the number your ad account does not show

What ROAS actually measures

ROAS is revenue divided by ad spend. A 4x ROAS means $4 of sales for every $1 of advertising. It says nothing about what it cost to make or deliver the product.

That is why two companies can both report 4x and one of them is growing while the other is quietly losing money.

The break-even formula

Break-even ROAS is 1 divided by your gross margin, as a decimal. If your gross margin is 40%, break-even ROAS is 1 / 0.4 = 2.5x. Below 2.5x, every sale loses money before overhead.

Gross margin here means revenue minus the cost of goods, shipping, payment fees and returns. Use the figure after all of them.

• Margin 25%: break-even ROAS 4.0x
• Margin 40%: break-even ROAS 2.5x
• Margin 60%: break-even ROAS 1.7x

These are worked examples, not client figures.

Set the target above break-even

Break-even only covers the product and the ad. Staff, software and rent still have to be paid. A target ROAS is break-even plus the contribution you need. If overhead needs 10 points of margin, a 40% margin business should target a ROAS where only 30 points go to ads and product.

In practice I set three lines: break-even, target and stretch. The account is read against all three.

Add repeat purchases carefully

If customers buy again, first-order ROAS understates the return. The right measure is payback: how many months until the margin on a customer repays what it cost to acquire them.

Only count repeat revenue you have already observed. A forecast is a hypothesis, not a number to bid against.

What this changes on Monday

Read each campaign against break-even, not against the account average. A blended 4.4x hides campaigns above and below the line. In the Lola + The Boys account, Performance Max Shopping returned 5.05x while the whole account returned about 4.4x. The right move was to see that difference before moving budget.