← All guidesE-COMMERCE PROFITABILITY

E-commerce profitability: how to calculate what actually remains

A store can grow revenue while putting pressure on real profit. The useful picture starts when sales and all relevant costs enter the same equation.

€

Revenue is not profit

Revenue shows how much was sold, not how much remains in the business. Discounts and returns reduce the amount you can treat as Net Revenue. Product costs, shipping, payment fees, advertising spend and other operating costs then reduce that figure further. Looking only at sales can make a higher-revenue month appear stronger even when the underlying margin has deteriorated.

The core profitability equation

For a practical business picture, start with Net Revenue and subtract the costs associated with making the sale. COGS reflects the cost of products sold. Shipping and fulfillment represent delivery costs, while payment fees reduce what you retain from each transaction. Advertising spend is a real cost regardless of how the ad platform attributes revenue.

Why data completeness matters

A missing cost does not mean the real cost is zero. If COGS is missing for part of the catalog, estimated profit can appear higher than reality. A useful profitability analysis should therefore show both the result and how complete the underlying data is.

What to compare every week

Review Net Revenue, Estimated Profit and Profit Margin together. Then identify which cost moved most: products, shipping, fees or advertising. Comparing against the previous equivalent period is often more useful than a single number because it shows whether the economics of the business are genuinely improving.

What to check in practice

✓ Use Net Revenue after discounts and refunds rather than only the sales total.
✓ Keep COGS current for the products that generate most of your revenue.
✓ Include payment fees, shipping and ad spend for the same period.
✓ Compare Profit Margin as well as absolute profit when revenue changes materially.
Business Truth formulaNet Revenue − COGS − Shipping − Payment Fees − Ad Spend − Other Costs = Estimated Profit

FAQ

What is the difference between revenue and profit in e-commerce?

Revenue is the value of sales. Profit remains after returns, product costs and the other known costs of the business are removed.

What is a good profit margin for an e-commerce store?

There is no single correct percentage for every store. It depends on products, category, fulfillment, advertising and operating costs. Your own historical performance and business targets are the useful comparison.

Do I need to connect my store to calculate profitability?

No. You can start with manual or CSV data. Connecting the store reduces manual work but is not required to begin.

Move from the theory to your real store data

Kepio lets you follow the same profitability logic without maintaining the calculation manually in spreadsheets.

Start 30 days free
Sign inStart 30 days free