Book a Growth Call
Back to insights
ROI and ROAS Analysis

How much ACoS is good?

Learn what a good ACoS is for your ads, how to calculate break-even ACoS, and the benchmarks to aim for. Get a clear plan to turn ad spend into booked c...

WorqdOctober 3, 2026
How much ACoS is good?

How much ACoS is good?

Frequently Asked Questions

What's considered a good ACoS on Amazon?
There's no universal number — a good ACoS depends entirely on your break-even point, which is calculated from your sale price, product cost, and Amazon referral fees. Industry averages often fall between 25–35%, with a commonly cited target around 20%, but these are only rough orientation points.
How do I calculate my break-even ACoS?
Break-even ACoS = [(Sale Price – Product Cost – Amazon Referral Fee) / Sale Price] × 100%. For example, a $100 product with $50 cost and $5 fees gives a $45 pre-ad profit, so your break-even ACoS is 45% — any ad spend below that keeps you profitable per sale.
Should my target ACoS change as my product matures?
Yes. During launch, it's normal to exceed break-even ACoS to gain traction and reviews. In the growth phase, aim for break-even. Once mature, set a target ACoS below break-even — for instance, if break-even is 45% and you want a 20% post-ad margin, target 25% ACoS.
Is a lower ACoS always better?
Not necessarily. While lower ACoS means higher per-sale profit, chasing the lowest possible ACoS can limit volume and growth. If your goal is rapid market share, accepting a higher ACoS (even above break-even temporarily) can be the right strategic choice.
How does ROAS relate to ACoS when evaluating profitability?
ROAS and ACoS are inverse metrics answering the same question: ROAS = 1 / ACoS (as a decimal). Your break-even ROAS tells you the minimum return needed for a campaign to pay for itself — if actual ROAS exceeds that, you're profitable.
Can I use the 20% target ACoS benchmark for my business?
Only as a rough reference. A seller with 60% margins can profit at 40% ACoS, while one with 15% margins loses money at 20%. Always anchor your target to your own break-even ACoS and business goals, not industry averages.

Your Break-Even Point Is the Only Benchmark That Matters

So, how much ACoS is good? The honest answer: there's no magic number. The commonly cited 25–35% average is a rough orientation at best — a seller with 60% margins can profit at 40% ACoS, while a seller with thin margins loses money at 20%. What actually defines a good ACoS is your break-even point: the maximum ad spend percentage that still leaves profit in every sale. From there, your product's stage sets the target — above break-even when launching, at break-even while growing, and below it when you're focused on profit. The real work is knowing your numbers and deciding whether growth or margin is the priority right now. If you'd like a second pair of eyes on whether your ad spend is actually paying for itself, Worqd can help you find where growth is stuck and build a plan around the metrics that matter — no vanity numbers. Book a free growth call and let's look at your funnel together.

Want help putting this into action?

Book a Growth Call
Topicswhat is a good ACoSgood ACoS for Amazon adsbreak-even ACoS formulaACoS benchmarks by industryhow to lower ACoStarget ACoS for PPC campaignsadvertising cost of sales explained

Stay in the Loop