How to Calculate Loaded Labor Cost for a Contractor

A contractor’s hourly wage is not necessarily the amount that employee actually costs the business for each productive hour of work. Payroll burden, workers’ compensation, benefits, bonuses and paid time that is not available for productive work can all increase the true labor cost behind a job.

Short answer: Loaded labor cost per productive hour equals total annual employment cost divided by annual productive hours. Total employment cost can include wages, employer payroll burden, workers’ compensation, benefits, bonuses and other employment-related costs that the business chooses to include in its labor model.

Start with annual base wages

For an hourly employee, annual base wages can be estimated by multiplying the employee’s hourly wage by the number of hours the employee is expected to be paid during the year.

Annual base wages = Hourly wage × Annual paid hours

For example, an employee earning $28 per hour and receiving pay for 2,080 hours per year would have annual base wages of:

$28 × 2,080 = $58,240

But $58,240 is only the starting point.

Add employer payroll burden

An employee’s wage does not necessarily represent the employer’s complete payroll cost.

Depending on the business, employer-paid payroll costs may include payroll taxes and other statutory or company-specific burdens.

If a contractor uses an 11% employer payroll-burden assumption for planning purposes:

$58,240 × 11% = $6,406.40

The correct percentage will vary by business, location and employee. The important point is that pricing based only on the employee’s wage can leave part of the employment cost unaccounted for.

Add workers’ compensation

Workers’ compensation can represent a meaningful labor-related expense for contractors and field-service companies.

Using an illustrative workers’ compensation assumption of 3% of wages:

$58,240 × 3% = $1,747.20

Actual workers’ compensation costs vary substantially based on classification, location, claims history and insurance arrangements.

Include benefits and other employment costs

A loaded-labor model can also include employer-paid costs such as:

• Health insurance or other employee benefits
• Retirement contributions
• Bonuses or incentive compensation
• Tool or vehicle allowances
• Other employment-related expenses

The objective is not to add every business expense to labor. It is to identify the costs that reasonably belong to employing that worker or labor class.

Paid hours and productive hours are different

One of the most important parts of loaded-labor calculation is the denominator.

An employee may be paid for:

• Vacation or PTO
• Paid holidays
• Training
• Safety meetings
• Company meetings
• Shop or warehouse work
• Administrative tasks
• Other nonproductive time

Those hours still cost the business money even though they may not be available to perform productive customer work.

If the company divides annual employment cost by all paid hours, it can understate the amount that must ultimately be recovered through the productive hours available to perform work.

Worked loaded-labor example

Using the following assumptions:

The employee earns $28 per paid hour, but this example produces an estimated labor cost of approximately $42.27 for each productive hour.

That is roughly 51% higher than the employee’s base hourly wage.

Calculate your own loaded labor cost

Understanding the formula is the first step. The MarginForge Contractor Labor Cost & Labor Burden Calculator lets you model multiple labor roles, account for employer costs and productive hours, and compare billable labor rates across gross-margin targets.

$11.99 one-time purchase · Microsoft Excel · No subscription

https://marginforgetools.com/products/contractor-labor-cost-calculator

Why productive capacity matters

The same annual employment cost becomes more expensive per productive hour when fewer hours are available to perform productive work.

For example:

$74,393.60 ÷ 2,080 paid hours = $35.77 per hour

But:

$74,393.60 ÷ 1,760 productive hours = $42.27 per productive hour

That is a $6.50-per-hour difference created simply by recognizing that not every paid hour is available to produce customer work.

Loaded labor cost is not a customer selling rate

Loaded labor cost is a cost input.

It is not necessarily the hourly amount a contractor should charge a customer.

A customer-facing price may also need to recover:

• Other direct job costs
• General business overhead
• Taxes
• Risk
• Desired profit or margin

That distinction is critical.

Cost is what the labor consumes. Price is what the business charges.

Should PTO be added as a separate cost?

Be careful not to count the same cost twice.

If annual base wages already include all paid hours, including PTO, and productive hours are reduced to account for PTO, the effect of paid nonproductive time is already reflected in the calculation.

Adding those same PTO wages again as another annual expense could overstate labor cost.

The goal is to build a consistent labor model where each cost is included once.

How often should loaded labor cost be updated?

Review the model whenever there is a material change in:

• Wages
• Benefits
• Payroll burden
• Workers’ compensation
• Bonuses
• Workforce utilization
• Productive-hour expectations

Productive-hour assumptions should also be compared periodically with actual field performance.

Common loaded-labor mistakes

Using wage as total labor cost.
The hourly wage may leave out significant employment costs.

Dividing by paid hours when pricing depends on productive capacity.
This can understate the cost of the hours actually available to perform work.

Counting PTO twice.
Be careful not to include the same paid time through both the wage calculation and an additional PTO expense.

Ignoring changing employment costs.
A labor model becomes less reliable as wages, benefits and insurance expenses change.

Using one labor rate for every employee or role.
Different employees or labor classes can have materially different costs.

Loaded Labor Cost FAQs

Does loaded labor include payroll taxes?
It can. A contractor’s labor model commonly includes employer payroll burden when the goal is to estimate total employment cost. The exact components should reflect the company’s payroll and accounting treatment.

Does loaded labor include overhead?
Not in the MarginForge framework. Loaded labor estimates employment cost. General business overhead is modeled separately.

Is loaded labor the same as burdened labor?
The terms are often used similarly, but companies define them differently. The important step is documenting exactly which costs and capacity assumptions are included.

Why use productive hours?
Because the annual employment cost ultimately has to be recovered through the hours available to perform productive work.

Calculate your own loaded labor cost

Use the free MarginForge Loaded Labor Cost Calculator to test your own wage, payroll burden, workers’ compensation, benefits and productive-hour assumptions.

Loaded labor is only one part of complete job pricing. Home Service Pricing & Job Profitability Pro carries labor, direct job costs, overhead and margin targets into a complete job-pricing workflow.