What Is Job Cost?

Job cost is the total direct cost your company incurs to complete a specific project.

Typical direct job costs include:

• Field labor
• Labor burden
• Materials
• Equipment
• Subcontractors
• Rentals
• Disposal
• Delivery
• Permits
• Other project-specific expenses

Adding these costs together gives you the project’s total direct cost.

That number is one of the most important numbers in your estimate.

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Why Accurate Job Costing Matters

Suppose you estimate a project at:

$10,000

but fail to account for:

$700 of labor burden

$450 of equipment cost

$300 of disposal and delivery

The job is already carrying $1,450 more cost than your estimate showed.

Your selling price didn’t change.

Your profit did.

Small estimating omissions repeated across dozens or hundreds of jobs can have a major impact on annual profitability.

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How the Contractor Job Cost Calculator Works

Enter the projected direct costs for the job:

Labor

Materials

Equipment

Subcontractors

Other Direct Costs

The calculator totals those expenses to determine your:

Total Job Cost

Then enter your desired gross margin.

The calculator estimates:

Recommended Selling Price

Gross Profit

Gross Margin

Markup on Cost

It also shows how much each cost category contributes to the overall project cost.

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Labor Cost

Labor should reflect what the employee actually costs the company—not simply the employee’s hourly wage.

For example, an employee earning $25 per hour may actually cost the company $32, $35 or more per paid hour after payroll taxes, workers’ compensation and benefits.

Productive-hour costs can be even higher after nonproductive paid time is considered.

If you’re unsure of your labor cost, use our:

Employee True Cost Calculator

and:

Effective Labor Rate Calculator

before calculating job cost.

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Material Cost

Include the actual expected cost of materials required for the project.

Depending on the job, that may include:

• Pavers
• Block
• Concrete
• Gravel
• Lumber
• Pipe
• Plants
• Sod
• Electrical materials
• Fasteners
• Adhesives
• Consumables

Don’t forget:

Delivery fees

Sales tax

Waste allowances

Small materials

These costs are easy to overlook because individually they may seem insignificant.

Collectively, they can materially change job profitability.

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Equipment Cost

Owned equipment still has a cost.

Fuel, maintenance, repairs, depreciation and replacement eventually have to be paid for somewhere.

You may include either:

Actual project-specific rental expense

or:

An internal hourly/daily equipment cost

for company-owned equipment.

Use the Equipment Cost Calculator to estimate your true equipment cost.

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Subcontractor Cost

Include the amount you expect to pay subcontractors specifically hired for the project.

Examples might include:

• Electricians
• Plumbers
• Concrete contractors
• Irrigation specialists
• Crane operators
• Hauling companies
• Specialty installers

Whether you apply additional markup to subcontractor work is a pricing decision.

The subcontractor payment itself belongs in the job cost.

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Other Direct Job Costs

This category can capture project-specific expenses that don’t fit neatly elsewhere.

Examples include:

• Dump fees
• Dumpster rental
• Permits
• Equipment rental
• Delivery
• Mobilization
• Temporary fencing
• Portable toilets
• Specialty tools
• Job-specific insurance or fees

If the cost exists because that particular job exists, it may belong in direct job cost.

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Job Cost vs. Overhead

Job cost and company overhead are different.

Direct Job Costs

These can usually be tied directly to a particular project.

Examples:

Job labor

Materials

Equipment used on that job

Subcontractors

Overhead

These expenses support the business as a whole.

Examples:

Office rent

Administrative salaries

General insurance

Accounting

Software

Marketing

Office utilities

Your selling price ultimately has to generate enough gross profit to cover overhead and leave profit.

That’s why simply adding up job cost and calling that your selling price doesn’t work.

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How Target Gross Margin Determines Selling Price

Suppose your total job cost is:

$10,000

and your target gross margin is:

35%

Your selling price is not:

$10,000 + 35% = $13,500.

That would be a 35% markup, not a 35% gross margin.

Instead:

Selling Price = Job Cost ÷ (1 − Gross Margin)

So:

$10,000 ÷ 0.65 = $15,384.62

Gross profit:

$5,384.62

Gross margin:

35%

Markup:

53.85%

This distinction is extremely important in contractor pricing.

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Gross Profit Is Not Net Profit

If a $15,385 project costs $10,000 to perform, it produces approximately:

$5,385 gross profit

That does not mean the company earned $5,385 of net profit.

Gross profit still needs to help pay:

• Office expenses
• Insurance
• Marketing
• Management
• Software
• Professional fees
• Administrative payroll
• Other company overhead

Whatever remains after all company expenses is closer to the business’s operating or net profit.

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Don’t Double-Count Costs

This becomes especially important as contractors get more sophisticated with their numbers.

For example, if your hourly labor cost already includes workers’ compensation, don’t add workers’ comp again elsewhere in the same project.

If your internal equipment rate already includes fuel, don’t separately add that fuel again.

If disposal is included in your material supplier’s project quote, don’t add the same disposal expense twice.

The goal isn’t to load the estimate with every possible number.

The goal is to account for every real cost exactly once.

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Contractor Job Cost Calculator FAQ

What should be included in job cost?

Include expenses that can reasonably be attributed directly to completing the project, such as labor, materials, equipment, subcontractors and project-specific expenses.

Should labor burden be included?

Yes. Using only employee wages generally understates the true cost of labor.

Is overhead included in job cost?

Normally, company overhead is tracked separately from direct job cost. Your gross profit needs to generate enough money to cover that overhead.

What is the difference between markup and margin?

Markup measures profit relative to cost. Gross margin measures gross profit relative to selling price. They are not interchangeable.

How do I calculate selling price from gross margin?

Divide total job cost by one minus the target gross margin expressed as a decimal.

Does the calculated gross profit equal my actual profit?

No. Gross profit is before company overhead and other operating expenses.

Can I use this for landscaping, construction and home-service work?

Yes. The underlying job-costing principles apply across many contracting and home-service businesses.

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