What is break-even ROAS?
ROAS (Return On Ad Spend) measures the revenue generated for every dollar spent on advertising. A ROAS of 3 means $3 in sales for $1 of ad spend. On its own, that number says nothing about profit: a ROAS of 3 makes one store rich and sinks another, depending on what each order costs to fulfill.
Break-even ROAS is the exact ROAS at which a sale neither makes nor loses money: revenue covers the product, shipping, payment fees and advertising, with nothing left over. Below it, every order drains cash. Above it, you start making a profit.
Break-even ROAS depends only on your margin, not on your campaigns. That is why you calculate it before launching a single ad.
Break-even ROAS formula: how to calculate it
Selling price ÷ Profit per sale before ad spend
Profit before ad spend = selling price excluding tax − product cost − shipping − payment fees − other costs per order.
Profit per sale before ad spend
Maximum CPA (cost per acquisition) is what you can spend on ads to win one order without losing money. Break it down with the CPA calculator.
Both metrics describe the same limit. CPA expresses it in dollars per order, ROAS as a multiple of spend. Google Shopping and Performance Max campaigns are usually steered with a target ROAS, while lead or subscription campaigns use a target CPA.
The sales tax trap. In markets where prices include VAT, ad platforms usually report the conversion value tax included, although the tax is not yours to keep. On a £60 basket with 20% VAT you only collect £50. With £20 of costs, profit is £30 and break-even ROAS is 2.00 — not the 1.50 a tax-inclusive calculation would suggest. Enter the tax rate in the calculator to get the real threshold.
Break-even ROAS examples
Example 1 — a healthy margin
- Selling price: $80
- Product cost: $24
- Shipping: $6
- Payment fees (3%): $2.40
- Profit before ad spend: $47.60
ResultBreak-even ROAS 1.68 — maximum CPA $47.60
Example 2 — a thin margin
- Selling price: $35
- Product cost: $18
- Shipping: $5
- Payment fees (3%): $1.05
- Profit before ad spend: $10.95
ResultBreak-even ROAS 3.20 — maximum CPA $10.95
In the first case, a campaign running at a 2.5 ROAS is already profitable. In the second, the same campaign loses money on every order: it has to beat 3.20 just to break even. Two stores showing the same ROAS in Google Ads can have very different bank balances.
How to use the break-even ROAS calculator
- 1
Pick your currency
Dollar, euro or pound: the maths is identical, only the display changes.
- 2
Enter the selling price
The price the customer pays. To reason per order rather than per product, use your average order value.
- 3
Add the tax rate if the price includes it
Leave 0 if your price excludes tax or if sales tax is added at checkout.
- 4
Fill in your costs per order
Cost of goods, the shipping you pay for, payment fees as a percentage, then other costs: packaging, fixed transaction fees, returns.
- 5
Set the net margin you want to keep
The calculator derives the target ROAS to enter in your campaigns, always higher than break-even ROAS.
What is a good ROAS for e-commerce?
There is no universal good ROAS. A good ROAS is one that sits clearly above your break-even point. Read the grid below by comparing your campaigns' actual ROAS with your break-even ROAS.
| Actual ROAS vs break-even | What it means | Decision |
|---|---|---|
| Below break-even | Every sale loses money | Pause or fix before raising the budget |
| 1 to 1.3× break-even | Profitable but fragile | A rise in CPC is enough to push you back into a loss |
| 1.3 to 2× break-even | Solid profitability | Scale the budget in steps |
| More than 2× break-even | Highly profitable | You are probably under-investing: lower the target ROAS to gain volume |
The level of the threshold itself is a diagnosis. Below 2, your margin absorbs advertising easily. Between 2 and 3, the goal is realistic on Google Shopping. Between 3 and 5, campaigns need to be very well tuned. Above 5, the problem is no longer advertising: the price or the cost structure has to change.
Break-even ROAS, target ROAS, POAS, MER: the differences
| Metric | What it measures | What it is for |
|---|---|---|
| Break-even ROAS | The ROAS at which profit is zero | Knowing the line you must not cross |
| Target ROAS (tROAS) | The ROAS you ask the bidding algorithm for | Steering Google Shopping and Performance Max |
| POAS | Profit, not revenue, per dollar spent | Arbitrating between products with different margins |
| MER | Total revenue ÷ total ad spend | Tracking overall efficiency across all channels |
Target ROAS should always be set above break-even ROAS, with a safety margin: platforms claim sales that would have happened without ads, and some orders are returned or cancelled. If your catalogue mixes high- and low-margin products, a single ROAS misleads you: calculate one threshold per product family, or reason in POAS.
How to lower your break-even ROAS
Lowering the threshold turns unprofitable campaigns into profitable ones without touching the ads. Four levers act directly on the formula.
- Raise unit margin — Renegotiate cost of goods, cut shipping costs or test a higher price. Measure the effect with the profit margin calculator.
- Raise average order value — Bundles, upsells and a free-shipping threshold spread acquisition cost over more revenue.
- Count customer lifetime value — If customers reorder, the first order can be acquired at break-even: the profit comes from the next ones.
- Cut returns and hidden fees — Every return is a sale whose ad cost is still owed. Provision returns in other costs to get an honest threshold.
Once you know the threshold, estimate what your budget would deliver with the Google Ads cost calculator, or start from your sales goal with the ad budget planner.
On Google Shopping, profitability starts with an active account
A carefully calculated target ROAS is worthless if your products stop showing. A Google Merchant Center suspension shuts down Shopping and Performance Max campaigns overnight, usually for reasons unrelated to advertising: incomplete business details, a vague return policy, prices that differ between site and feed, unproven claims on product pages.
GClimb reviews your store the way a Google reviewer would and lists the compliance issues to fix. Run the free store audit, or start with the Google Merchant Center compliance checklist.
Frequently asked questions
How do you calculate break-even ROAS?
Divide the selling price by the profit made on one sale before ad spend. With an $80 price and $47.60 of profit before ads, break-even ROAS is 80 ÷ 47.60 = 1.68. Below that ROAS, the campaign loses money.
What is the difference between ROAS and break-even ROAS?
ROAS is a result: the revenue earned per dollar of advertising. Break-even ROAS is a threshold: the minimum ROAS needed to cover all your costs. You compare the first with the second to know whether a campaign makes money.
Is a ROAS of 2 profitable?
It depends on your margin. A ROAS of 2 is profitable if your profit before ads exceeds 50% of the selling price, and loss-making below that. A store with a 30% margin needs a ROAS above 3.33.
What is the difference between break-even ROAS and target ROAS?
Break-even ROAS is the point where profit is zero. Target ROAS is the higher value you ask Google Ads or Meta Ads to reach in order to keep the net margin you are aiming for. The calculator shows both.
Should break-even ROAS be calculated with or without tax?
Profit is always calculated excluding tax, because the tax is passed on to the state. Ad platforms, however, often report a tax-inclusive conversion value. The calculator therefore compares the price paid by the customer with profit excluding tax, so the threshold is comparable to the ROAS shown in your campaigns.
How are break-even ROAS and maximum CPA related?
They are two readings of the same limit. Maximum CPA is the profit before ads, in dollars per order. Break-even ROAS is the selling price divided by that maximum CPA.
Why is my break-even ROAS so high?
A threshold above 5 means your margin before ads is under 20% of the price. Advertising is then almost impossible to make profitable: raise the price, cut cost of goods or shipping, or sell bundles to increase average order value.