Price the complete job
Include direct costs, allocated overhead, contingency, and payment fees before deciding what to charge.
Contractor job costing
Contractor Job Profit Calculator
Compare estimated and actual job costs, expose margin erosion, account for overhead and fees, and calculate the revenue required to protect your target profit margin.
Track estimate versus actual
See whether labor, materials, equipment, subcontractors, and other costs are running over or under budget.
Protect contractor margin
Compare expected and actual profit, calculate break-even revenue, and find the price required for a target margin.
Project and revenue
Estimated versus actual direct costs
Cost categoryEstimatedActualVariance
Labor
$
$
$1,250.00Materials
$
$
$1,750.00Equipment and rentals
$
$
$400.00Subcontractors
$
$
$0.00Permits and inspections
$
$
$150.00Other direct costs
$
$
$300.00Overhead, contingency, fees, and target
How to calculate profit on a contractor job
Start with total contract revenue, including the original accepted price and approved change orders. Then subtract every cost required to deliver the work. Direct job costs commonly include labor, materials, equipment, rentals, subcontractors, permits, inspections, disposal, freight, and project-specific expenses.
A complete analysis should also allocate overhead and account for payment-processing fees. Profit equals contract revenue minus total job cost. Profit margin equals profit divided by contract revenue, multiplied by 100.
Estimated profit versus actual profit
Estimated profit describes the expected result using budgeted costs. Actual profit uses recorded job costs. Comparing the two helps identify cost overruns, missed scope, weak pricing, purchasing problems, labor-productivity issues, and unapproved change-order work.
Update actual costs throughout the project instead of waiting until closeout. Early visibility gives a contractor more time to correct field performance, document changed conditions, invoice approved work, and manage remaining commitments.
Costs contractors frequently miss
- Payroll taxes, benefits, and workers’ compensation
- Small tools, equipment mobilization, and fuel
- Freight, delivery, disposal, and material waste
- Supervision, estimating, administration, and insurance
- Permits, inspections, testing, and bonds
- Payment fees, warranty exposure, callbacks, and rework
Contractor job profit calculator FAQs
How do contractors calculate profit on a job?
Subtract complete job costs—including labor, materials, equipment, subcontractors, permits, allocated overhead, and applicable payment fees—from contract revenue. Divide the resulting profit by revenue to calculate profit margin.
What is the difference between markup and profit margin?
Markup measures profit relative to cost, while profit margin measures profit relative to selling price. A 25% markup does not produce a 25% profit margin.
Should contractor labor include payroll burden?
For a useful job-cost analysis, labor should generally include wages plus employer payroll taxes, workers’ compensation, benefits, and other labor burden attributable to the work.
How should overhead be included in job costing?
Allocate a reasonable share of indirect operating expenses—such as office payroll, insurance, vehicles, software, rent, and administration—to jobs using a consistent method.
Do change orders increase job profit?
Only when the added revenue exceeds the added direct costs, overhead, fees, and risk created by the changed scope. Enter approved change-order revenue and update the related costs.
What does a positive cost variance mean?
In this calculator, a positive cost variance means actual total cost is higher than estimated total cost. A negative variance means the job is currently under its estimated cost.
Job-costing disclaimer
Results are educational estimates and are not accounting, tax, legal, contracting, or financial advice. Actual profitability depends on complete and accurate job-cost records, contract terms, billing, collections, tax treatment, overhead allocation, warranty obligations, and other factors. Verify material decisions with qualified professionals when appropriate.
Created and maintained by Numeravo Technologies LLC.