The breakeven point is the level of sales at which a business's total revenue exactly equals its total costs, producing neither a profit nor a loss. You calculate it by dividing your fixed costs by the contribution margin per unit, which is the selling price minus the variable cost per unit. Every unit sold above the breakeven point generates pure profit, because fixed costs have already been covered.
Think of it like a subscription you must pay regardless of how many customers show up: the breakeven point is the moment when customer revenue finally covers that subscription cost.
You can calculate the breakeven point in units or in sales dollars, depending on which is more useful for your planning.
For example, if your fixed costs are $50,000 per month, you sell each unit for $20, and your variable cost per unit is $10, your contribution margin is $10 per unit and your breakeven point is 5,000 units. If you need to express that in revenue, it is $100,000 per month.
Fixed costs do not change with production volume. Rent, salaried employees, insurance, and equipment depreciation are all fixed. They hit your income statement whether you produce one unit or 10,000.
Variable costs rise proportionally with output. Direct materials, sales commissions, hourly production labor, and packaging costs are all variable. Misclassifying a variable cost as fixed understates your breakeven point and makes profitability look easier to achieve than it actually is. Some costs are semi-variable, with a fixed base and a variable component, and must be split before the formula works accurately.
The U.S. Small Business Administration states that a breakeven analysis is a standard requirement in business plans for investors and lenders. Before anyone commits capital or approves a loan, they want to know how many units you need to sell before the business stops losing money.
A lower breakeven point is almost always better. It means you need fewer sales to reach profitability, which reduces the capital required to survive the early stage and shortens the period of loss. You can lower your breakeven point by cutting fixed costs, reducing variable costs, or raising prices.
You do not have to apply breakeven analysis only at the company level. You can calculate it for a single product, a new service offering, or a price change. If you are considering adding a new product line, calculate the breakeven point for that line alone to determine how many additional units it must generate before it starts contributing to overall profitability.
In securities trading, the breakeven point for an option position is the price the underlying asset must reach for the trade to produce zero net profit after accounting for the premium paid. The concept scales identically: at what level do revenues exactly cover costs.
Sources:
https://corporatefinanceinstitute.com/resources/accounting/break-even-analysis/
https://www.sba.gov/business-guide/plan-your-business/calculate-your-startup-costs/break-even-point
https://www.netsuite.com/portal/resource/articles/financial-management/break-even-analysis.shtml
https://breakingintowallstreet.com/kb/accounting/breakeven-formula/