A good ROAS is one that makes you money after all your costs, not a number someone quoted from an industry average. A 4x return can lose money for one business and be outstanding for another. The only way to know is to work out your own break-even point and set targets from there.
Here’s how to do that in plain numbers.
What ROAS Actually Measures
ROAS (return on ad spend) is revenue from ads divided by what you spent on those ads.
If you spend $2,000 and the ads bring in $8,000 in sales, your ROAS is 4, often written as 4x or 400%.
What ROAS doesn’t include matters just as much: the cost of the product, delivery, staff time, software, agency fees and refunds. That’s why ROAS on its own can’t tell you whether a campaign is profitable.
Start With Your Break-Even ROAS
Your break-even ROAS is the point where ad revenue exactly covers the ad spend plus the cost of delivering what you sold. The simple formula:
Break-even ROAS = 1 ÷ your gross margin
- If your gross margin is 50%, break-even ROAS is 1 ÷ 0.5 = 2x.
- If your gross margin is 25%, break-even ROAS is 1 ÷ 0.25 = 4x.
- If your gross margin is 70%, break-even ROAS is 1 ÷ 0.7 = about 1.4x.
Anything above break-even is contributing profit. Anything below is costing you money on the first sale, which may still be fine if customers buy again.
Set Your Target Above Break-Even
Once you know break-even, set a target that leaves room for profit and for the costs ROAS ignores. A practical approach:
- Calculate break-even ROAS from your gross margin.
- Add the overhead you want ads to cover, such as management fees and tools.
- Decide how much profit you need from the first purchase.
- Use that number as your target, and review it every quarter as margins change.
For lead-generation businesses, where revenue happens offline, work backwards from close rate and average sale value to a target cost per lead instead. For example, if 1 in 5 qualified leads becomes a $10,000 job with a 40% margin, each lead is worth $800 in gross profit before ad costs.
When a Lower ROAS Is the Right Call
Chasing the highest possible ROAS can shrink a business. Very high ROAS usually means you’re only buying the easiest sales, like people already searching your brand name, and leaving new customers to competitors.
A lower ROAS can be the smarter target when:
- Customers come back and buy again, so lifetime value is much higher than the first order.
- You’re launching a new product or entering a new market.
- You’re prospecting on Meta to reach people who have never heard of you.
The question isn’t “is ROAS high?” It’s “is each new customer worth more than it costs to get them?”
Why Your Reported ROAS Might Be Wrong
Before you judge a campaign, make sure the number is real:
- Each platform counts generously. Google and Meta can both claim the same sale.
- Tracking gaps. Missing conversion tracking, broken checkout events or iOS privacy limits all distort results.
- Offline sales. If deals close by phone or in a CRM, the ad platforms can’t see them unless you send that data back.
That’s why we compare platform numbers against GA4 and actual revenue every month. If you suspect your reporting doesn’t add up, a marketing audit is the fastest way to find out.
Frequently Asked Questions
Is 4x a good ROAS?
It depends on your margin. With a 50% margin, 4x is comfortably profitable. With a 20% margin, 4x is below break-even (5x). Work out your own break-even before judging any number.
What’s the difference between ROAS and ROI?
ROAS compares revenue to ad spend only. ROI compares profit to the total investment, including product costs, fees and time. ROI tells you whether you made money; ROAS tells you how efficiently ads turned spend into sales.
How long before ROAS stabilizes?
New campaigns need time and conversion data before the platforms optimize well. Judge them on a few weeks of data, not a few days, and avoid big changes while they’re learning.
Get Targets Built on Your Real Numbers
We set ROAS and cost-per-lead targets from your actual margins and close rates, then manage Google Ads and Meta Ads against them. Read more on how much to spend on Google Ads, or book a free consultation and we’ll work out your break-even with you.
