Break-even ROAS is the point at which a campaign stops losing money. The formula that gets quoted — one divided by gross margin — is correct, and it is also the least useful of the three break-even points you actually have, because it only covers the cost of the goods.
This guide works through all three, states what each one does and does not pay for, and is explicit about the assumptions, because a break-even number quoted without them is how a store ends up scaling a campaign that clears the bar it was measured against and nothing else.
Break-even point 1: gross margin
Break-even ROAS = 1 ÷ Gross margin
At a 50% gross margin, $1 of ad spend must produce $2 of revenue for the gross profit on that revenue to equal the spend. Below 2x, the advertising cost more than the goods earned.
| Gross margin | Break-even ROAS | What it covers |
|---|---|---|
| 25% | 4.00x | The cost of the goods, and nothing else |
| 40% | 2.50x | |
| 50% | 2.00x | |
| 60% | 1.67x | |
| 70% | 1.43x |
What this number assumes, and usually should not. That every attributed dollar is real revenue. That nothing comes back. That fulfillment, payment processing, support and overhead cost zero. Hit exactly this ROAS and the campaign contributes precisely nothing to the business — it recovers the product cost and the ad cost and stops.
Break-even point 2: contribution
The version that accounts for what it costs to deliver the order. Every ecommerce order carries variable costs beyond the goods: shipping, packaging, payment fees, and — statistically — a share of returns.
Contribution margin % = (Revenue − COGS − Variable order costs) ÷ Revenue
Break-even ROAS = 1 ÷ Contribution margin %
Worked through, on a $60 average order. Illustrative figures.
| Per order | Amount | % of revenue |
|---|---|---|
| Revenue | $60.00 | 100% |
| COGS | −$27.00 | 45% |
| Gross profit | $33.00 | 55% |
| Shipping & packaging | −$6.40 | 10.7% |
| Payment processing | −$1.77 | 2.95% |
| Expected return cost | −$1.44 | 2.4% |
| Contribution before ads | $23.39 | 39.0% |
Gross margin says 55%, so gross-margin break-even is 1.82x. Contribution margin is 39.0%, so contribution break-even is 2.56x. A campaign running at 2.0x clears the first bar comfortably and loses money against the second.
That gap — 1.82x versus 2.56x — is the single most common reason a store's campaigns all look profitable while the business does not. See contribution margin for the full treatment.
Break-even point 3: the whole business
Contribution break-even still ignores fixed costs: salaries, software, rent, warehousing. Those are paid out of total contribution, so the ROAS that makes the business break even depends on volume as well as margin.
Required contribution = Fixed costs + Target profit
Required revenue = Required contribution ÷ Contribution margin %
Break-even ROAS = Required revenue ÷ Planned ad spend
With $34,000 of monthly fixed costs, a 39.0% contribution margin and $40,000 of planned ad spend, and aiming to break even rather than profit:
- Required contribution: $34,000
- Required revenue: $34,000 ÷ 0.39 = $87,180
- Break-even ROAS on planned spend: $87,180 ÷ $40,000 = 2.18x
Note what changed: this figure came out lower than contribution break-even, because it assumes all revenue comes from advertising. If a meaningful share of your revenue is organic or repeat, the paid campaigns do not have to carry the full fixed cost base on their own — which is precisely why this calculation belongs against total revenue and total spend, not per campaign. That is MER, not ROAS.
Which one to use when
| Decision | Use | Why |
|---|---|---|
| Should I pause this ad set today? | Gross-margin break-even | Fast, per-campaign, and a campaign below it is losing money on any definition. |
| Should this product be advertised at all? | Contribution break-even | Includes the variable costs of actually delivering what the ad sells. |
| Can we afford this month's budget? | Business break-even, against MER | Fixed costs are covered by total contribution, not by one campaign. |
Assumptions worth stating out loud
Every break-even ROAS carries these, and each one can move the answer more than the formula does.
- That attributed revenue is real. The ROAS you compare against break-even comes from a platform; the margin comes from your books. Mixing an optimistic numerator with an accurate margin biases the comparison in advertising's favor.
- That margin is stable across the campaign's mix. A campaign selling a range has a blended margin, and a blended break-even is only right if the mix holds.
- That discounts are in the margin. A 20%-off code moves gross margin substantially, and a break-even calculated on list price will not apply to the orders the promotion produced.
- That returns are priced in. If returns are not in the contribution figure, contribution break-even is understated by roughly the return rate times the margin. Return rate covers how to measure that.
- That first order equals lifetime. These formulas break even on a single order. A business that reliably sees repeat purchasing can run below first-order break-even deliberately — but only on repeat behavior it has measured in its own cohorts, not assumed.
Common mistakes
Using net margin in the formula
1 ÷ net margin produces an enormous number, because net margin already has advertising subtracted from it. The denominator has to be a margin measured before the ad spend you are evaluating.
Applying one store-wide break-even to every product
Break-even varies per product because margin does. A store-wide 2.5x target will over-invest in low-margin SKUs and under-invest in high-margin ones — which is the opposite of what you want.
Treating break-even as a target
Break-even is a floor. A campaign at exactly break-even has paid for itself and contributed nothing. The target is whatever clears the floor by enough to fund operating costs and leave profit.
Recalculating only when costs rise
Supplier price changes, shipping rate changes and payment fee changes all move break-even. Stores often recalculate after a cost increase and never after a decrease, which quietly leaves profitable spend on the table.
How ORVX supports this
ORVX reports the inputs rather than a single target: realized revenue, COGS, gross margin and contribution after ads, per product and for the business. Break-even is arithmetic on top of those, and the reason it is arithmetic you can trust is that the margin underneath it comes from delivered orders and per-product costs rather than from placed-order revenue.
Ads Intelligence reports contribution after ads alongside ROAS, so the comparison against break-even is visible rather than assembled by hand.
Frequently asked questions
What is the break-even ROAS formula?
The simplest version is 1 ÷ gross margin, which is the ROAS at which advertising exactly pays for the goods it sold. A more complete version uses contribution margin — revenue minus COGS minus the variable costs of fulfilling the order — which gives a higher and more honest floor.
Why is my real break-even higher than 1 ÷ gross margin?
Because gross margin only subtracts the cost of the goods. Shipping, packaging, payment processing and returns are real costs of each order, and once they are included the contribution margin is lower — so the ROAS needed to cover it is higher.
Should break-even ROAS include operating expenses?
Fixed operating expenses do not belong in a per-campaign break-even, because they are paid out of total contribution across everything you sell. Model them at the business level, against MER rather than campaign ROAS.
Can I run below break-even ROAS on purpose?
Yes, if repeat purchasing reliably makes up the difference and you have measured that in your own data. The failure mode is assuming a repeat rate you have not observed: the loss then scales with the spend.
Does break-even ROAS change with discounts?
Yes, and more than most people expect. A discount reduces revenue without reducing COGS, so it cuts gross margin and raises the break-even ROAS. A 20% discount on a 55% margin product drops the margin to roughly 44% and lifts break-even from 1.82x to about 2.29x.