Labor Burden for Contractors

What Is Labor Burden?

Labor burden is the employer-paid cost of an employee above base wages. Contractors use it to move from the wage rate to a more realistic loaded labor cost for estimates, job-cost reports, staffing decisions, and pricing.

The exact components depend on the company, employee, trade, insurance program, and jurisdiction. The useful approach is to identify actual employer costs and apply them consistently, not to rely on a universal percentage.

What Is Included in Labor Burden?

Employer Payroll Taxes

Include employer-paid payroll taxes that apply to the employee and business. Use current payroll or accounting records rather than treating a generic planning percentage as tax advice.

Workers' Compensation

Workers' compensation is commonly part of loaded labor cost. Rates can differ sharply by trade, employee classification, state, claims history, and insurer, so use the rate that applies to the work being estimated.

Health and Insurance Benefits

Employer-paid health, dental, vision, life, and disability insurance can be entered as annual employee costs. Include only the employer's share.

Retirement Contributions

An employer 401(k) match or another employer-funded retirement contribution belongs in annual employee cost when the company provides it.

Paid Time Off

Vacation, holidays, sick time, and other paid leave reduce the hours available for productive work. If the annual wage calculation already includes every paid hour, do not add PTO wages again as burden. Reduce available hours instead.

Training and Employee-Specific Costs

Uniforms, certifications, required training, an employer-paid phone, and software assigned to the employee may be included when they are employee-specific. General rent, marketing, accounting, and office administration are usually better handled as overhead unless the contractor deliberately uses another allocation method.

Labor Burden Formula

Percentage-based costs such as employer taxes and workers' compensation are calculated against annual base wages. Fixed annual costs such as benefits, retirement contributions, and employee-specific expenses are then added. Divide total employee cost by annual paid hours for paid-hour cost, or by productive hours for productive-hour cost.

Labor Burden Example

A contractor employs a technician at $30 per hour for 2,080 paid hours per year. Assume employer payroll taxes of 8%, workers' compensation of 5%, $7,500 in employer-paid benefits, and $1,500 in other employee costs.

Labor burden is $17,112 ÷ $62,400 = 27.4%. The true cost per paid hour is $79,512 ÷ 2,080 = $38.23. These are assumed example inputs, not recommended tax, insurance, or benefit rates.

Paid Hours vs Productive Hours

Two thousand eighty paid hours does not mean 2,080 productive or billable hours. Vacation, holidays, sick time, meetings, training, travel, shop time, and non-billable administrative work all reduce the capacity that carries annual employee cost. That time is not automatically wasteful; much of it is necessary to operate safely and serve customers.

Suppose the example employee has 160 paid non-working hours. Available working time becomes 1,920 hours. At 75% productive utilization, productive hours equal 1,440. The same $79,512 annual employee cost divided by 1,440 produces $55.22 per productive hour.

Labor Burden vs Labor Rate

Labor burden is what the employee costs you. A labor rate is what the business charges or allocates so labor can recover employee cost, nonproductive capacity, company overhead, and profit. They are connected but not interchangeable.

After calculating employee cost, use the Labor Rate Calculator to build a customer-facing rate. Keep general business expenses separate until the chosen overhead method deliberately assigns them.

Labor Burden and Job Costing

Jobs should use a realistic loaded labor cost rather than wage alone. If a technician earns $30 per hour but costs $38.23 per paid hour before considering productive capacity, using $30 in an estimate understates labor cost. The guide to understanding contractor job costing explains how labor combines with materials, subcontractors, equipment, and other direct costs.

Labor Burden and Job Profit

Underestimated labor cost overstates projected margin. A job may appear to meet its target when the estimate includes wages but omits employer-paid costs. After completion, use the Job Profit Calculator to compare revenue with actual loaded labor and the other costs the job consumed.

Common Labor Burden Mistakes

• Using wage instead of true cost. Wage is only the base of the calculation.
• Ignoring workers' compensation. Trade and classification can materially affect the applicable rate.
• Ignoring employer-paid benefits. Annual insurance and retirement costs still belong to the employee cost.
• Double-counting PTO. If annual wages already cover paid leave, reduce productive hours rather than adding those wages again.
• Assuming all paid hours are productive. Necessary travel, training, meetings, and shop work reduce invoiceable capacity.
• Mixing overhead into burden accidentally. Include general overhead only through a deliberate, consistent allocation method. The Overhead Recovery Calculator can model that next step.

How Often Should You Recalculate Labor Burden?

Review the calculation periodically and whenever a meaningful input changes: wage, benefits, payroll taxes, workers' compensation, retirement contributions, paid leave, employee-specific costs, or productive utilization. The right timing depends on how often those costs change and how the business estimates work; this is not a regulatory or accounting schedule.

Labor Burden FAQ

What is a labor burden rate?

A labor burden rate measures employer-paid employee costs above base wages. It may be expressed as annual dollars, dollars per paid hour, or a percentage of base wages.

What is a typical labor burden percentage?

There is no universal percentage. Labor burden varies with employer taxes, benefits, workers' compensation, trade, employee classification, insurance experience, and jurisdiction.

Is workers' comp part of labor burden?

It is commonly included because it is an employer cost connected to labor, but the applicable rate varies materially by classification, trade, location, and claims experience.

Is PTO part of labor burden?

PTO affects productive-hour cost. When annual wages already include all paid hours, PTO should reduce available productive hours rather than add the same wages to cost a second time.

Is overhead part of labor burden?

Labor burden usually focuses on employer costs tied to the employee. General company overhead can be handled separately unless the contractor deliberately uses a fully loaded allocation method.

What is the difference between loaded labor cost and billable labor rate?

Loaded labor cost is what the employee costs the business after labor burden. A billable labor rate is what the customer is charged to recover labor, productive capacity, overhead, and profit.