Break-Even Analysis: Formula, Examples, and What It Means for Your Business

What is the break-even point?

The break-even point is the sales volume at which total revenue exactly equals total costs - neither a profit nor a loss. Every unit sold beyond the break-even point contributes directly to profit. Every unit sold below it contributes to covering the remaining fixed costs.

Break-even analysis is based on dividing costs into two categories. Fixed costs do not change with sales volume: rent, salaries, insurance, software subscriptions. Variable costs scale directly with production or sales: raw materials, packaging, payment processing fees, commission. The distinction between fixed and variable costs is the foundation of the calculation.

Break-even formula

The denominator (selling price minus variable cost) is the contribution margin per unit: the amount each unit contributes to covering fixed costs after its own variable costs are paid. The higher the contribution margin, the fewer units you need to sell to break even.

Worked example: an online product

A small business sells a digital course for 99. Fixed costs per month: 2,500 (platform subscription, marketing spend, and part-time assistant). Variable costs per sale: 9 (payment processing fee of 3% + 2.9% + 0.30). Contribution margin: 99 - 9 = 90 per sale.

Break-even = 2,500 / 90 = 27.8 units. Round up to 28 sales per month. Break-even revenue = 28 x 99 = 2,772. Every sale beyond 28 earns 90 in profit.

Worked example: a physical product

A food producer makes a product that sells to retailers at 4.00 per unit. Fixed costs: 8,000 per month (factory rent, equipment leases, two permanent staff). Variable costs: 1.60 per unit (ingredients, packaging, shipping). Contribution margin: 4.00 - 1.60 = 2.40.

Break-even = 8,000 / 2.40 = 3,333 units per month. Break-even revenue = 3,333 x 4.00 = 13,333. The business needs to ship 3,333 units before it covers its monthly fixed costs.

How to use break-even analysis in practice

• New product validation: before launching, check whether your realistic sales volume exceeds the break-even point. If break-even requires selling 500 units per month and your market research suggests 150, rethink the pricing or cost structure.
• Pricing decisions: lower your price and the contribution margin shrinks, pushing break-even higher. Raise your price and break-even falls. Use the calculator to see how sensitive your break-even is to price changes.
• Hiring decisions: adding a full-time employee increases fixed costs. Calculate the additional units you need to sell to cover the new salary before committing.
• Stress testing: what if sales drop 20%? What if material costs rise 15%? Break-even lets you model these scenarios and understand your margin of safety.

Common mistakes

• Misclassifying costs - commissions and payment processing fees are variable (they scale with sales). Owner's salary often gets left out of fixed costs entirely, understating the true break-even.
• Ignoring sales returns and refunds - if 5% of sales are refunded, your effective selling price is lower than the list price; adjust accordingly.
• Using break-even as a target - break-even is the minimum, not the goal. Profit requires selling significantly beyond break-even. Many businesses that consistently hit break-even are slowly running out of cash because they have no reserves.
• Not updating after cost changes - break-even is a snapshot. When your rent goes up or a material price changes, recalculate.

Use the Break-Even Calculator

The Break-Even Calculator takes your fixed costs, selling price, and variable cost per unit and instantly calculates break-even units, break-even revenue, and the contribution margin per unit. Adjust any input and the result updates immediately - making it easy to model different pricing scenarios or cost structures.

Frequently asked questions

What is a good break-even point?

There is no universal answer - a good break-even depends on your market size, sales cycle, and growth trajectory. What matters is that your realistic achievable sales volume (based on evidence, not optimism) is comfortably above break-even with room for variation. A business where break-even requires 95% of realistic maximum sales has almost no margin of safety.

How is break-even different from profitability?

Break-even is the point where revenue equals costs - zero profit, zero loss. Profitability starts above break-even. Each unit sold above break-even contributes the full contribution margin to profit. A business generating 200 units of contribution margin above break-even makes 200 x (selling price - variable cost) in operating profit.