What Break-Even Return Means
Break-even ROAS is the minimum advertising return at which an order’s revenue covers its product cost and every other variable cost tied to making and delivering that sale. Depending on the store, that includes fulfilment, payment processing, discounts, returns and refunds, sales tax the merchant bears, and other per-order costs. It is expressed as revenue divided by ad spend. For illustration only, if a $100 order leaves $40 after those non-ad costs, spending $40 on advertising produces a 2.5 ROAS and zero profit: $100 revenue minus $60 variable costs minus $40 ads equals $0.
That makes break-even ROAS a financial floor, not a growth target. Campaigns consistently below it destroy contribution unless another factor, such as repeat purchasing, is deliberately being valued separately. A campaign above it may still be unsuitable for growth if its return does not cover fixed overhead, inventory financing, or the required profit. Use break-even ROAS to decide whether the sale economics are viable; use a separate target to decide how aggressively to scale. The break-even ROAS calculator can translate your own cost assumptions into this threshold. For US stores, tax treatment should reflect where the merchant has an obligation: in South Dakota v. Wayfair, decided June 21, 2018, the Supreme Court upheld a law covering sellers that deliver more than $100,000 of goods or services into the state each year or make 200 or more separate transactions, and overruled the physical presence rule (Legal Information Institute, Cornell Law School) (Source: Legal Information Institute, Cornell Law School).
Build the Calculation From Contribution Margin
Start with one delivered order. Use realized selling price after discounts, rather than a catalogue price, then subtract every variable cost attached to that order. Include product cost and any applicable payment, fulfilment, packaging, shipping subsidy, or return-related cost. Keep fixed overhead outside this order-level calculation unless you deliberately allocate it.
The structure is:
Read the separate worked example as an audit trail, not as a benchmark. Verify that its selling price matches the revenue definition, each variable-cost line is included once, and the contribution figure equals selling price minus the cost lines. Then check that allowable ad cost equals contribution before advertising and that break-even ROAS equals selling price divided by allowable ad cost. If allowable ad cost is zero or negative, the order cannot support positive advertising under those inputs.
- Break-even ROAS = selling price ÷ allowable ad cost
- Allowable ad cost at break-even = contribution before advertising
| Line | What to enter |
|---|---|
| Selling price | Realized revenue from the delivered order |
| Variable costs | Product cost plus all other order-level variable costs |
| Contribution before advertising | Selling price − variable costs |
| Allowable ad cost | Contribution before advertising at break-even |
Worked example with sample numbers
This example is illustrative. It uses sample numbers for a men's fashion store selling in the US. They are made up to show the method, they are not a benchmark, and your own figures will differ.
Formula: Break-even ad return = net price / margin before ads.
| Ad return (revenue / spend) | Ad cost per order | Left after ads |
|---|---|---|
| 1.66x | $37.99 | -$9.50 |
| 2.21x | $28.49 | $0.00 |
| 3.32x | $19.00 | $9.50 |
| 4.42x | $14.25 | $14.25 |
Run the same sum with your own numbers in the free calculator, or browse guides for sellers in the US and more men's fashion guides.
General information only: tax, duty and import rules change and depend on your situation, so check with an accountant or the official source before acting.
Eligible Shopify stores can see these numbers for their own store through the Founding 10,000 offer.
Reading Platform Numbers Carefully
Platform ROAS is attributed revenue divided by the ad spend recorded in that platform. It is useful for comparing campaigns inside the same account, but it can omit sales the platform did not attribute, and may count cancelled orders, returns, discounts, or tax differently from your books. A reported 2.5 ROAS means $2.50 of attributed revenue per $1 of ad spend, not $2.50 available to cover product and fulfilment costs. Use it for campaign diagnostics, not as a standalone profitability decision.
MER (marketing efficiency ratio) is total store revenue divided by total marketing spend. If the store makes $10,000 and spends $4,000 across advertising, creators, and other marketing, MER is 2.5. It includes organic and repeat revenue, so it is useful for judging the blended marketing system, but it cannot show which campaign created the sales. CAC divides acquisition spend by new customers; use it when deciding whether customer acquisition is affordable, while remembering that it may omit returns, product cost, fulfilment, and later customer value.
Revenue is the topline measure: it shows demand and cash-generating sales, but says nothing about whether orders are profitable. Contribution margin goes further by subtracting variable product, payment, fulfilment, return, and advertising costs. Act on contribution margin when deciding whether to scale or stop spend, and use MER or CAC to diagnose the source of the result. ORVX keeps these measures separate, using delivered orders for realized revenue and reporting contribution after advertising by product and collection. Compare your inputs with the break-even ROAS calculator, rather than treating any platform number as interchangeable with break-even performance.
New Customers and Repeat Customers
A new-customer campaign has two separate decisions: can the first order pay for acquiring the customer, and is the customer profitable over a defined period? First-order break-even should use only the delivered first order. If realized revenue is $80 and contribution before advertising is $24, the allowable acquisition cost is $24, equivalent to a 3.33 break-even ROAS. A break-even ROAS calculator can help test those inputs.
Repeat purchases may increase the allowable acquisition cost, but only when measured as incremental contribution. In the example, a later order contributing $18 could raise total contribution to $42, so a $30 acquisition cost may be profitable across both orders even though it loses $6 on the first order. That is a customer-lifetime decision, not evidence that the initial campaign broke even.
Keep retention assumptions separate from the campaign result. Do not include an expected second order in first-order ROAS, then treat that assumption as fact. Use observed repeat behaviour by customer cohort, account for discounts, returns, fulfilment and later advertising, and compare customer-level profitability with the original acquisition cost. ORVX shows customer-level profitability and repeat behaviour alongside product and collection economics, making those two decisions easier to separate.
Setting a target for men's fashion campaigns
Set the campaign target above break-even, not at it. The right cushion depends on cash needs, growth plans, and how reliably your men's fashion orders are delivered without refunds. For illustration only, if your break-even ROAS is 2.5 and you choose a 20% operating cushion, the target is 2.5 × 1.20 = 3.0. Use the break-even ROAS calculator to test the effect of changing costs or realized selling price.
Use attributed ROAS to judge whether a specific campaign is clearing its target inside the ad account. Use MER, total store revenue divided by total advertising spend, to judge the blended efficiency of paid acquisition across channels; it is the better measure when attribution is incomplete or campaigns assist one another. Neither measure replaces contribution after advertising: act on product or collection-level contribution when deciding which men's shirts, trousers, or jackets to scale, reduce, or stop.
Review targets by customer type and product economics. A first-order acquisition target may need to protect cash immediately, while a repeat-customer campaign can be assessed against its own lower acquisition burden. Keep the decision rule explicit: scale only when the relevant measure clears its target and contribution remains positive; otherwise fix economics, test, reduce, or stop.
Sources
- South Dakota v. Wayfair, Inc., 585 U.S. 162 (2018) (Legal Information Institute, Cornell Law School, checked 26 October 2026).
How this page was made: drafted with AI from a brief, then checked by automated rules for arithmetic, sources and duplication. The sample numbers were calculated, not reported.