MJMarginJob
Built for contractors & small service crews
Know before you quote

Price the job.
Protect your profit.

A clear, no-accounting-speak calculator for contractors who need to know what a job really costs—and what to charge.

No sign-upRuns in your browserYour numbers stay private
Job profit calculator

Enter the job numbers

Use your best estimates. You can change any number.

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Before sales tax
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hrs
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Your target

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Saved jobs

Pricing tool

Markup Calculator

Start with what the job costs. Set the profit margin you want. Get the customer price without mixing up markup and margin.

Step 1

Cost and target

Use the full estimated job cost.

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Customer price = cost ÷ (1 − target margin). A 25% margin is not the same as a 25% markup.
Cost control tool

Labor Burden Calculator

See what one paid hour really costs after payroll taxes, workers’ comp, benefits, and paid non-working time.

Step 1

Build the true hourly cost

The displayed values are a worked example. Replace every rate with current business records.

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Productive-hour cost = paid-hour cost ÷ (1 − paid non-working time). Rates vary by state, trade, insurer, employee, and business.
Scope control tool

Change Order Calculator

Price extra work with labor, materials, overhead, and profit shown separately—before the added work starts.

Step 1

Price the added scope

Enter only the extra work created by this change.

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Document the description, schedule impact, and approval separately. This tool prices the numbers only.

Four tools. One clear price.

Move from true cost to a quote that protects your profit.

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Markup Calculator

Turn job cost and desired margin into a clean customer price.

Open calculator →
HR

Labor Burden

Find the true hourly cost after payroll taxes, insurance, and benefits.

Open calculator →
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Change Order Price

Price added labor, materials, overhead, and profit without guessing.

Open calculator →

Built for the person pricing the work

No finance dashboard. No spreadsheet setup. MarginJob uses plain labels, large touch targets, and a result you can read beside the truck, at the supply house, or before sending a quote.

✓Shows cost, profit, and margin separately
✓Explains the price needed for your target
✓Works on phone, tablet, and desktop

Build labor cost from your own records

A wage is only the amount paid directly to the worker. Employer taxes, workers’ compensation, benefits, and paid non-working time increase the employer cost of each productive hour.

Worked example

For a $28 base wage, 9% employer payroll tax, 6% workers’ comp, and $4.50 in benefits per paid hour, paid-hour cost is $36.70. If 8% of paid hours are non-working time, divide $36.70 by 0.92. Estimated productive-hour cost becomes $39.89, or $319.13 for eight productive hours.

This is a cost estimate, not a billing rate. Overtime regular-rate rules, supervision, tools, overhead, and profit may require separate treatment.

Labor burden questions

Where do I get the rates?

Use current payroll reports, insurer documents, benefit invoices, and guidance from your bookkeeper or payroll provider. Rates vary by worker, trade, and jurisdiction.

Is workers’ comp the same for every trade?

No. Classification, payroll, claims history, insurer, experience rating, and location can change the rate.

Can I use this result as my customer labor rate?

Not by itself. A billable rate usually must also recover overhead, non-billable time, and profit.

Latest Insights

Where contractor jobs quietly make or lose money.

Why a 20% Markup Is Not a 20% MarginThe pricing mix-up that shrinks margin.5 Costs Contractors ForgetThe lines that vanish from a quote.Why Busy Contractors Still Lose MoneyA full schedule is not a profitable one.

All insights →  ·  Pricing by trade →