Contribution margin per job
Average revenue per job − Variable cost per job
This is the amount each completed job contributes toward fixed monthly costs and operating profit.
Free home-service business calculator
Break-even Calculator
Calculate the jobs and revenue your service business needs to cover monthly operating costs, measure margin of safety, and plan for a target profit.
Break-even jobsRequired revenueMargin of safetyTarget-profit planning
Business inputs
Calculate your monthly break-even point
Enter fixed costs, average job revenue, variable cost, current job volume, and a profit target to estimate the jobs and revenue needed to break even.
Results update automatically.
Break-even guide
What is a break-even calculator?
A break-even calculator estimates the amount of monthly work a home-service business must complete before operating revenue covers fixed and variable costs.
The calculation begins with contribution margin. Contribution margin is the portion of average job revenue remaining after variable job costs. That remaining amount pays fixed overhead and then creates operating profit.
This calculator also estimates current operating performance, margin of safety, and the jobs and revenue required for a selected monthly profit target.
Break-even formulas
These formulas separate fixed overhead from costs that increase with each completed service job.
Break-even jobs
Fixed monthly costs ÷ Contribution margin per job
This estimates the number of jobs required before the business begins generating operating profit.
Break-even revenue
Break-even jobs × Average revenue per job
This estimates the monthly sales revenue required to cover fixed and variable operating costs.
Target-profit jobs
(Fixed monthly costs + Target monthly profit) ÷ Contribution margin per job
This estimates the monthly job volume required to reach a selected operating-profit target.
How to calculate your break-even point
- 1
Add fixed monthly costs
Include expenses that remain relatively stable regardless of job volume, such as rent, vehicle payments, insurance, software, office payroll, licenses, and administration.
- 2
Estimate average job revenue
Use recent invoices or accounting reports to calculate the average amount earned from one completed job before sales tax.
- 3
Estimate variable cost per job
Include labor, payroll burden, materials, fuel, commissions, disposal, subcontractors, and other expenses that rise when another job is completed.
- 4
Enter current job volume
Use an average month rather than an unusually busy or slow period so the current operating-profit estimate is more representative.
- 5
Set a monthly profit target
Choose a realistic operating-profit goal that supports owner compensation, taxes, reinvestment, reserves, and growth.
Break-even calculation example
Assume a service business has $12,000 in fixed monthly costs, earns $500 per job, and incurs $200 in variable costs per job.
Contribution margin per job:$500 − $200 = $300
Break-even jobs:$12,000 ÷ $300 = 40 jobs
Break-even revenue:40 × $500 = $20,000
The business must therefore complete approximately 40 jobs and generate $20,000 in monthly revenue to cover the stated operating costs.
Common break-even planning mistakes
Excluding owner or office labor
Administrative and management labor still affects profitability. Include it in fixed costs or allocate it consistently.
Using revenue instead of contribution margin
Revenue alone does not cover fixed costs. Variable costs must be deducted before calculating the amount each job contributes.
Underestimating job-level costs
Small costs such as card fees, fuel, consumables, disposal, callbacks, and commissions can materially reduce contribution margin.
Treating break-even as a profit goal
Breaking even only means estimated operating profit is $0. A sustainable business normally needs a target above break-even.
Ignoring seasonality
Home-service businesses may experience seasonal changes in demand, labor efficiency, pricing, and material costs. Compare multiple periods.
Break-even calculator FAQs
What is a break-even point for a service business?
The break-even point is the estimated monthly job volume or revenue at which operating revenue equals fixed and variable operating costs. At this point, estimated operating profit is $0.
What counts as a fixed monthly cost?
Fixed costs commonly include rent, insurance, office payroll, software, licenses, vehicle payments, telephone service, bookkeeping, and other recurring overhead that does not directly change with each job.
What counts as a variable cost per job?
Variable costs commonly include field labor, payroll taxes, materials, subcontractors, fuel, commissions, disposal fees, merchant fees, and job-specific supplies.
Should sales tax be included in job revenue?
Normally, sales tax collected for a taxing authority should not be treated as business revenue. Use revenue before sales tax unless your accounting method requires different treatment.
Why can break-even jobs include a decimal?
The mathematical result may include a partial job. For operational planning, round required job volume up to the next whole completed job.
What does a negative margin of safety mean?
A negative margin of safety indicates that current monthly job volume or revenue is below the estimated break-even point.
How often should break-even be recalculated?
Recalculate when pricing, wages, materials, insurance, rent, staffing, vehicle costs, or average job mix changes. Monthly or quarterly reviews are useful for many service businesses.
Important planning disclaimer
This calculator provides estimates for general business planning and educational purposes. Actual profitability may differ because of taxes, financing, cash timing, discounts, refunds, warranty work, callbacks, seasonality, accounting methods, and changes in job mix. Review important pricing and financial decisions with a qualified accountant or financial adviser.
About Break-even Calculator
Break-even Calculator helps home service businesses improve planning, marketing performance, and operational decisions.
Who should use this tool?
- Use Break-even Calculator to analyze business opportunities and improve decision making.
- Support marketing workflows with practical insights.
- Create more consistent growth processes.
Benefits
- Save time with a structured workflow.
- Improve accuracy when making business decisions.
- Build repeatable marketing and growth systems.
How it works
- 1. Enter your business information.
- 2. Review the generated results.
- 3. Apply recommendations to improve performance.
Frequently asked questions
What is Break-even Calculator?
Break-even Calculator is a practical tool designed to help service businesses analyze information and improve growth decisions.
Who should use Break-even Calculator?
Home service businesses, contractors, and marketers can use this tool to improve workflows and decision making.
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