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Break-Even Analysis

Break-Even Analysis: How to Find Your Profit Threshold

By GenAlpha Tools Editorial

Break-even analysis answers one question: at what point does this business, product, or campaign stop losing money? Founders use it for pricing. Operators use it for launch decisions. CFOs use it for hiring sign-off. Despite being one of the simplest tools in finance, it’s also one of the most underused.

The Formula

Break-even units = Fixed Costs ÷ (Price per unit − Variable Cost per unit)

The denominator is the contribution margin per unit — the dollars left over from each sale to cover fixed costs and eventually create profit.

Try it in our Break-Even Calculator.

Fixed vs Variable Costs

• Fixed: rent, salaries, software subscriptions, insurance — costs that don’t change with volume.
• Variable: raw materials, payment processing fees, shipping, sales commissions — costs per unit sold.

Misclassifying a “fixed” cost that’s actually semi-variable (e.g. AWS bills) is the #1 way break-even models lie.

Worked Example: A US DTC Candle Brand

Selling price per candle: $32. Variable cost (wax, jar, label, shipping, payment fees): $11. Monthly fixed costs (warehouse, founder salary, software, marketing baseline): $18,000.

• Contribution margin: 32 − 11 = $21 per candle
• Break-even units: 18,000 ÷ 21 = 858 candles/month
• Break-even revenue: 858 × $32 = $27,456/month

Break-Even in Dollars (For Service Businesses)

Break-even revenue = Fixed Costs ÷ Contribution Margin Ratio, where the ratio is (Revenue − Variable Costs) ÷ Revenue. This is more useful for agencies and consultancies that don’t sell discrete units.

Three Levers To Lower Break-Even

1. Raise price. A 10% price hike with stable volume cuts break-even units sharply.
2. Cut variable cost. Negotiate suppliers, optimize packaging, cheaper fulfillment.
3. Cut fixed cost. Renegotiate rent, sublet, drop underused SaaS.

The Margin of Safety

Margin of safety (%) = (Actual sales − Break-even sales) ÷ Actual sales × 100. A high margin of safety means you can absorb a sales drop before going into loss. Below 20% is a yellow light.

FAQs

Should I include taxes? Use pre-tax break-even for operational decisions; add a tax shield only when modeling distributable profit.

How does break-even change with multiple products? Use weighted-average contribution margin across the product mix.

Is break-even still useful for SaaS? Yes — apply it at the customer-cohort level: months of subscription needed to recover CAC.