What Is ROAS? And What Does “Good” Actually Look Like?
Return on ad spend is the most fundamental metric in performance advertising — but also one of the most misunderstood. Here is a clear, practical guide for Australian businesses.
ROAS is a measure of advertising efficiency — but ROAS alone does not tell you whether a campaign is profitable. That requires one additional number.
ROAS is calculated simply: revenue generated divided by ad spend. A ROAS of 4 means that for every dollar spent on advertising, four dollars in revenue was generated. It is the most widely reported metric in digital advertising — and the most widely misinterpreted. Businesses report their ROAS without knowing whether it is good or bad. Agencies present ROAS numbers without contextualising what they mean. Budget decisions get made on figures that may be measuring the wrong things entirely.
A ROAS of 4 sounds excellent. But if your product costs $3 to produce and sell for $4, after paying $1 in advertising, you have broken even. To determine the ROAS you actually need to be profitable, you must factor in your gross margin. If your gross margin is 50 percent — you keep $0.50 of every revenue dollar after cost of goods — your breakeven ROAS is 2. Any ROAS above 2 means your advertising is contributing to profit. Below 2 and it is costing you.
Breakeven ROAS is the number every business should calculate before evaluating their advertising performance. Without it, a “good” ROAS figure may be masking a campaign that is running at a loss.
Different platforms, different
ROAS benchmarks — here’s why.
Each platform occupies a different position in the funnel. Higher-intent traffic typically delivers higher ROAS — but lower-funnel channels depend on upper-funnel activity to keep their audiences warm.
Never evaluate platforms in isolation. A Meta campaign with a modest ROAS may be generating the warm audiences that make your Google Search ROAS possible. Cut Meta and Google’s numbers often follow.
“Breakeven ROAS is the number every business should know before evaluating their advertising performance — everything else is context.”
What ROAS looks like
across different business types.
ROAS benchmarks vary significantly by business model. Using the wrong benchmark for your category leads to poor decisions in both directions.
What to do with your
ROAS data once you have it.
If your ROAS is above your breakeven threshold and trending upward, the priority is scaling — increasing budget in the campaigns and channels that are delivering results, while maintaining the efficiency that makes them profitable. If ROAS is below breakeven or declining, a diagnostic review is needed quickly. Declining ROAS is not a platform problem — it is a signal that something in the account, the creative, the targeting, or the competitive landscape has changed.
Building a measurement framework
A proper advertising measurement framework for Australian businesses combines platform-reported ROAS with server-side conversion data, multi-touch attribution, and blended performance analysis. The combination gives you a complete picture — not just the fraction of conversions that direct attribution captures. Businesses with robust measurement consistently outperform those making decisions on incomplete data because they can allocate budget confidently.
When ROAS is the wrong metric entirely
For awareness campaigns, brand campaigns, and top-of-funnel activity, ROAS is not the right primary metric. These campaigns are building the audience pools and brand recognition that make lower-funnel conversion campaigns possible. Evaluating them on direct ROAS will always produce a case for cutting them — and cutting them always reduces the performance of the campaigns downstream.
An ad audit will give you a clear picture of what your ROAS data is actually telling you, where the measurement gaps are, and what a realistic improvement pathway looks like. A free ad audit from Ad Doctor Australia includes a full measurement review — so you know whether your reported numbers reflect your actual performance.
Measure what matters —
and act on what you find.
Severino Murze helps Australian businesses build advertising measurement frameworks that accurately reflect the commercial impact of their campaigns across Google, Meta, Microsoft, and TikTok. Understanding your true ROAS — not just the number your platform reports — is the foundation of every good advertising decision.