ROAS only becomes meaningful when it is connected to margin. The less contribution you keep from each order, the higher ROAS you generally need to cover advertising.
Margin changes the breakeven point
With a 50% contribution margin, a quick breakeven approximation is around 2.0x. With 25%, the quick approximation is around 4.0x.
Gross margin may be too optimistic
Gross margin can exclude shipping, processing, fulfillment, packaging and returns. Contribution margin is often more useful for acquisition decisions.
Discounts can raise required ROAS
A promotion may improve conversion rate while reducing margin. Evaluate the net effect rather than assuming a higher conversion rate means higher profit.
Returns matter
High-return categories should include expected refunds and handling costs. Platform revenue can look healthy before returns are realized.
Improving margin is a media lever
Bundles, better AOV, lower fulfillment cost and smarter discounting can reduce the ROAS required for profitable acquisition.
Calculate your own break-even point
Use your real product costs, fees, returns and conversion rate instead of relying on generic targets.
Use the free ROAS calculatorFrequently asked questions
Which margin should I use?
Contribution margin is generally more useful because it includes more of the variable costs associated with each order.
Does higher margin allow lower ROAS?
Yes. Higher contribution margin generally lowers the ROAS needed to cover ad spend.
Can discounts improve ROAS but hurt profit?
Yes. Discounting can lift conversion while cutting contribution margin enough to reduce profit.