What Is the Break-Even Point?

The break-even point is the level of sales at which total revenue exactly equals total costs — you are neither making a profit nor a loss. Any sales above this level generate profit.

Break-even analysis is one of the most fundamental tools in business planning, pricing, and financial modeling.

The formula

Break-Even Units     = Fixed Costs / (Price − Variable Cost per Unit)
Break-Even Revenue   = Break-Even Units × Selling Price
Contribution Margin  = Price − Variable Cost per Unit

Example: A business has $5,000 in monthly fixed costs, sells a product for $50, and the product costs $20 to make.

• Contribution Margin = $50 − $20 = $30 per unit
• Break-Even Units = $5,000 / $30 = 167 units
• Break-Even Revenue = 167 × $50 = $8,350

Sell fewer than 167 units per month and the business loses money. Sell more and it profits.

Fixed costs vs variable costs

Understanding the distinction is critical:

Fixed costs	Variable costs
Stay the same regardless of volume	Change directly with units produced/sold
Rent, salaries, insurance, software licences	Raw materials, packaging, sales commissions
Cannot be avoided in the short term	Only incurred when you make a sale

A business with high fixed costs and low variable costs (e.g. software) has a high break-even point but scales very profitably once it's crossed. A business with mostly variable costs (e.g. services billed by the hour) has a lower break-even but also lower upside leverage.

Contribution margin

The contribution margin (CM) is the amount each unit sold contributes toward covering fixed costs — and then profit:

CM per unit = Selling Price − Variable Cost per Unit
CM % = (CM per unit / Selling Price) × 100

A 60% contribution margin means that for every $1 in revenue, $0.60 goes toward fixed costs and profit.

Once break-even is passed, each additional unit sold generates its full CM as profit — this is called operational leverage.

How to use break-even analysis

Pricing decisions: If raising your price by 10% would push you beyond break-even much sooner, the price increase may be worthwhile even if it reduces volume slightly.

New product launches: Model whether a new product's expected sales volume will reach break-even before the budget runs out.

Cost control: Reducing fixed costs (moving to smaller premises, renegotiating contracts) directly lowers the break-even point.

Hiring decisions: A new hire often adds to fixed costs — break-even analysis tells you how many additional units or clients you need to cover that cost.

Limitations

• Break-even assumes a constant price and variable cost. In practice, bulk discounts, economies of scale, and promotional pricing change both.
• It doesn't account for cash flow timing — you might be profitable on paper but cash-constrained.
• It doesn't factor in working capital needed before sales begin.
• Service businesses with no clear "unit" need to define a meaningful denominator (e.g. client hours, projects, monthly recurring revenue).