Break-even is the point at which total revenue equals total cost for the period being analyzed. At break-even, the business is covering its costs but has not yet produced a profit.
Know the three numbers first
Fixed costs
Costs that generally do not change directly with the number of units or services sold during the period. Examples may include rent, base software subscriptions, insurance and fixed salaries.
Selling price
The amount charged for one unit, job, package or service being analyzed.
Variable cost per unit
The cost that changes as you make each additional sale. Examples can include materials, transaction fees, job-specific labor, shipping or subcontractor costs.
Contribution margin connects price to break-even
The difference between selling price and variable cost is the contribution margin per unit. That amount contributes toward fixed costs and then profit after fixed costs are covered.
Worked example
Assume a service business has:
- Monthly fixed costs: $3,600
- Price per service: $150
- Variable cost per service: $30
Contribution margin per service = $150 − $30 = $120.
Break-even services = $3,600 ÷ $120 = 30 services per month.
At 30 services, revenue would be $4,500. The business has covered the $900 of variable costs plus $3,600 of fixed costs.
Break-even in sales dollars
If a business sells multiple services or packages, break-even revenue can be more useful than break-even units. First calculate the contribution margin ratio:
Then:
Capacity matters
A mathematically correct break-even target can still be operationally unrealistic. If the owner can perform only 24 services per month but needs 30 to break even, something must change: price, variable cost, fixed cost, capacity or the business model.
This is why break-even should be tested against actual operating capacity rather than treated as a spreadsheet exercise.
Use scenarios instead of one forecast
Test a few combinations to understand sensitivity.
Common break-even mistakes
- Leaving out owner compensation or important overhead.
- Treating every cost as fixed.
- Using an unrealistic sales price.
- Ignoring payment-processing, materials or subcontractor costs.
- Calculating break-even without checking capacity.
- Assuming break-even means the business is financially attractive. It only means revenue equals cost at that point.
Use break-even to make a decision
The calculation becomes useful when it changes what you do. If the required sales volume is too high, test alternatives before launching: raise price, redesign the offer, reduce variable cost, reduce overhead, increase capacity or narrow the initial scope.
Related resources
How to price a service business → connect customer value, market evidence, capacity and financial requirements.
Calculate startup costs → estimate the cash required before and immediately after launch.
Turn the analysis into a decision.
Use these resources to strengthen your plan, then summarize the evidence and decisions in your one-page business plan.