Why ROAS is Flawed for E-Commerce
ROAS treats every dollar of revenue as equal. But in modern e-commerce, a $100 order of a low-margin product (20% margin) generates only $20 in profit, while a $100 order of a high-margin accessory (80% margin) yields $80 in profit.
An ad campaign optimizing strictly for ROAS will happily push low-margin products that generate lots of revenue but negligible profit. POAS fixes this by optimizing directly for gross profit dollars.
Interpreting Your POAS Number
- POAS < 1.0: You are losing money on gross profit alone before factoring in fixed overhead.
- POAS = 1.0: Exact break-even on product and ad costs.
- POAS 1.2 - 1.5: Healthy operational profitability for DTC brands.
- POAS > 1.8: Highly profitable campaign ready for aggressive budget scaling.
Frequently Asked Questions
POAS stands for Profit on Ad Spend. It calculates the gross profit generated per dollar spent on advertising, after deducting Cost of Goods Sold (COGS).
A POAS above 1.0 means your campaigns are generating gross profit after product costs. A POAS of 1.3 to 1.6+ is generally considered healthy for scaling e-commerce brands.
Calculate Your POAS in Seconds
Deduct your COGS and merchant fees automatically to discover your true Profit On Ad Spend.
Open POAS Calculator
Written by Ubaid Siddiqui
Founder & Digital Marketing Specialist
Ubaid manages performance marketing campaigns across Meta and Google Ads. He built AdProfit Calculator to give media buyers transparent, accurate formulas without agency fluff.