What is the break-even point in ecommerce? Formula and practical examples

The break-even point in ecommerce is the number of sales where your revenue exactly covers all your costs — fixed and variable — with neither profit nor loss. Below that threshold you lose money; above it you start generating real profit.

Break-even (units) = Fixed costs ÷ (Selling price − Variable costs per unit). For example, if you have $2,000 in monthly fixed costs, sell at $50 per unit and variable costs are $25, you need to sell 80 units per month to break even: $2,000 ÷ ($50 − $25) = 80 units.

Fixed costs are those you pay regardless of sales volume: warehouse rent, ecommerce platform, tools, subscriptions, fixed salaries. Variable costs change with sales: product cost, shipping, packaging, payment gateway fees. In ecommerce, advertising can be treated as variable (scales with sales) or fixed (predefined monthly budget).

It depends on how you treat advertising. If you have a fixed monthly ad budget regardless of sales, include it as a fixed cost. If it scales with sales (you pay per sale), treat it as a variable cost. In practice, many ecommerce businesses calculate break-even in two versions: with a minimum ad budget as a fixed cost, and an operational version including CPA as a variable cost.

Three ways: reduce fixed costs (negotiate subscriptions, cut overhead), reduce variable costs (better supplier prices, reduce returns) or increase selling price or average order value. A combination of all three has the biggest impact. Reducing advertising CPA (if treated as variable) also lowers break-even.