Breakeven ROAS
Breakeven ROAS is the return on ad spend where contribution margin equals media cost — your zero-profit floor. Here's how to calculate it and what typical thresholds look like by vertical.
Breakeven ROAS
The ROAS threshold at which an order's contribution margin exactly equals its ad cost — zero profit, zero loss.
Breakeven ROAS is the minimum return on ad spend you need before a paid campaign starts losing money. It's calculated from contribution margin — revenue minus COGS, payment fees, fulfilment, and returns — not from gross revenue. If your contribution margin is 40%, your breakeven ROAS is 2.5: every €1 of ad spend has to bring back €2.50 in revenue just to recover the spend after costs.
Most teams confuse breakeven ROAS with target ROAS. Breakeven is the floor; target is the floor plus the profit margin you actually want. Knowing both lets you bid aggressively on new customers without sliding into unprofitable territory.
The metric only works if your contribution margin is honest. Gross margin (revenue minus COGS) overstates profitability because it ignores the variable costs every order actually triggers: payment processing, pick-and-pack, last-mile shipping, and a refund reserve. A Shopify apparel store with a 60% gross margin often lands around 38-42% contribution margin once those line items hit the P&L.
Once you have a clean contribution margin number, breakeven ROAS becomes a single division. The result tells you the exact point where Meta or Google campaigns stop subsidising themselves. Bid floors, automated rules, and target ROAS settings in Smart Bidding should all reference this number — not a number a media buyer pulled from a previous agency.
Breakeven ROAS = 1 / Contribution Margin %
Contribution Margin %
Contribution margin percentage
Revenue minus all variable costs (COGS, payment fees, fulfilment, shipping, returns reserve), expressed as a decimal.
A Shopify apparel store sells a €80 AOV order. COGS is €28, payment fees €2.40, pick-pack-ship €7, and a 5% return reserve takes €4. Contribution margin = (80 - 28 - 2.40 - 7 - 4) / 80 = 48.25%.
Average order value: €80
Variable costs per order: €41.40
Contribution margin: 48.25%
→ Breakeven ROAS = 1 / 0.4825 ≈ 2.07
Every €1 of ad spend must return at least €2.07 in revenue. A campaign running at 1.8 ROAS is burning roughly €0.13 per ad-euro spent; a campaign at 3.0 is contributing about €0.45 of profit per ad-euro before fixed overhead.
Breakeven ROAS varies sharply by vertical because contribution margins do. Beauty and supplements typically run 55-70% margin (low breakeven, room to bid aggressively); consumer electronics and furniture run 15-30% (high breakeven, thin error margin). The table below shows realistic ranges for online retail categories at typical AOV tiers.
Typical breakeven ROAS by vertical and AOV tier
| Vertical | Contribution margin | Breakeven ROAS | Healthy target ROAS |
|---|---|---|---|
| Beauty & skincare (AOV €40-80) | 55-65% | 1.5 - 1.8 | 3.0 - 4.0 |
| Apparel & accessories (AOV €60-120) | 40-50% | 2.0 - 2.5 | 3.5 - 4.5 |
| Supplements (AOV €30-60, subscription) | 60-75% | 1.3 - 1.7 | 2.5 - 3.5 |
| Home & decor (AOV €80-200) | 30-40% | 2.5 - 3.3 | 4.0 - 5.5 |
| Consumer electronics (AOV €150-500) | 15-25% | 4.0 - 6.7 | 6.0 - 9.0 |
| Furniture (AOV €300-1500) | 20-30% | 3.3 - 5.0 | 5.0 - 7.5 |
Use breakeven ROAS as a circuit breaker, not as a daily KPI. Campaigns running consistently below it should be paused or restructured; campaigns hovering near it deserve attention on creative, audience, or landing page before more budget. The number is also the foundation for a target ROAS calculator — once you know the floor, you can layer in your profit-margin goal to get the bid target you actually want.
Frequently asked questions
Breakeven ROAS is the floor — the point where contribution margin equals ad cost. Target ROAS is the floor plus the profit margin you want to earn. If your breakeven is 2.5 and you want a 20% net margin on paid orders, your target is roughly 3.1.
Contribution margin, always. Gross margin only subtracts COGS and misses payment fees, fulfilment, shipping, and returns — costs that scale directly with every paid order. Using gross margin will set your breakeven 20-40% too low and quietly bleed cash.
They're two views of the same constraint. Breakeven ROAS expresses the floor as a revenue multiple of ad spend; breakeven CAC expresses it as a euro amount per customer. For a single-purchase business they're equivalent. For repeat-purchase businesses, LTV-based CAC lets you bid above breakeven ROAS on first orders.
Yes — apply a return reserve based on your category's return rate. Apparel often runs 15-25% returns, beauty 3-8%, electronics 8-15%. Multiply order value by the return rate and subtract it from contribution margin before computing breakeven ROAS.
It applies cleanly at the channel or campaign level where you can attribute ad spend to revenue. Blended ROAS (total revenue ÷ total ad spend) is useful as a north-star, but for bid decisions you want channel-level breakeven against channel-level ROAS — usually in Meta Ads Manager or Google Ads, not GA4.
Every quarter at minimum, and after any cost change: new fulfilment partner, freight surcharge, payment-processor switch, or COGS shift. A 3-point drop in contribution margin can move your breakeven ROAS by 0.3-0.5, which silently kills previously profitable campaigns.
That signals thin contribution margins — typical for electronics, furniture, or low-markup commodities. You have three levers: raise AOV (bundles, upsells), cut variable costs (renegotiate fulfilment, optimise packaging), or rely on repeat purchase so first-order ROAS can sit below breakeven against LTV economics.
No — set it 20-40% above breakeven. Smart Bidding optimises toward the target but actual performance distributes around it, so a tROAS equal to breakeven means roughly half your spend lands below profitability. Set tROAS to your target ROAS instead.
No, and it shouldn't. Breakeven ROAS measures the contribution from each paid order. Fixed costs (rent, salaries, software) are covered by aggregate contribution across all orders. A separate calculation tells you how many breakeven-plus orders you need to cover overhead each month.
Treat customer-paid shipping as revenue and the actual shipping cost as a variable cost — they net to the shipping margin. Free-shipping thresholds change the picture: if you absorb shipping above €60, model that as a per-order cost when AOV sits near the threshold, which raises your effective breakeven ROAS.
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