Fully Burdened Labor Rate Calculation
Why this matters
The fully burdened labor rate is what a technician actually costs the business per hour. Most owners use the technician's wage rate when estimating jobs and pricing time-and-materials work. The wage rate is a fraction of the actual cost. A 25-dollar-per-hour technician usually costs the business in the high thirties to low forties per hour all-in once federal, state, and payroll taxes, workers compensation, health benefits, paid time off, retirement match, training, and non-billable time are loaded. Pricing a job at the wage rate plus a markup that does not reflect the burden produces gross profit that does not survive contact with the actual P&L. This is the working calculation, step by step.
What is in the burden
The labor burden is everything the business pays related to a technician beyond the gross wage. The categories:
Employer payroll taxes. Employer Social Security (6.2 percent on wages up to the Social Security wage base, 2025 threshold 168,600), Medicare (1.45 percent on all wages, plus 0.9 percent on wages above 200,000 for employee but not employer), FUTA (federal unemployment, 0.6 percent on the first 7,000 of wages per year per employee), SUTA (state unemployment, rate varies by state and by the business's experience rating, often 1 to 5 percent on the first state-set wage base per year).
Workers compensation premium. State-specific rates per 100 of payroll by class code. Rates vary dramatically by trade: HVAC and electrical typically 3 to 6 dollars per 100 of payroll; roofing 10 to 30 dollars per 100; plumbing 4 to 7 dollars. Experience modifier adjusts the rate up or down based on the business's claims history.
General liability insurance allocation. Trade general liability is often calculated as a percentage of payroll or as a flat per-employee allocation. Typically 1 to 3 percent of payroll for service trades.
Health insurance employer contribution. Variable; depends on whether the business offers a group plan, HRA, or no benefit. Where offered, employer contribution per employee per month, multiplied by 12, divided by total annual hours.
Retirement plan employer contribution. Variable; depends on the plan and the match formula. Where offered, typical employer match is 2 to 6 percent of wages.
Paid time off. Vacation, sick, holidays. The hours paid for non-work time are a real cost. Common: 80 hours vacation + 40 hours sick + 8 holidays (64 hours) = 184 hours of paid non-work time per year per technician.
Training time. Manufacturer training, certification renewal, internal training. Paid hours where the technician is not generating revenue. Typical: 40 to 80 hours per year.
Tools and uniforms. Annual stipend or company-provided tools and uniforms. Allocate per employee per year.
Vehicle, fuel, and tools allocated to labor. Often calculated separately; some businesses load the vehicle into the labor rate, others keep them separate.
The burden does not include marketing, office staff, software, rent, or owner salary; those are overhead, allocated separately.
The burden calculation
Start with the annual all-in cost per technician.
Example: residential service technician, mid-Atlantic state
Base wage 25.00 per hour times 2,080 scheduled hours equals 52,000 annual gross wages.
Employer payroll taxes: Social Security 6.2 percent (3,224), Medicare 1.45 percent (754), FUTA 0.6 percent on first 7,000 (42), SUTA 2.5 percent on first 12,000 state-specific (300). Total payroll taxes: 4,320.
Workers compensation HVAC class at 4.50 per 100 of payroll: 2,340. General liability allocation 2 percent of payroll: 1,040. Health insurance employer contribution 400 per month: 4,800. Retirement 3 percent match: 1,560. Tools and uniforms stipend: 600. Vehicle allocated separately.
Total annual cost: 52,000 wages + 4,320 payroll taxes + 2,340 workers comp + 1,040 GL + 4,800 health + 1,560 retirement + 600 tools = 66,660.
Billable hours and burdened rate
The technician is paid for 2,080 hours but does not bill them all: subtract 80 vacation, 40 sick, 64 holidays, 60 training, 200 other non-billable (truck loading, shop time, internal work). Total billable hours: 1,636.
Fully burdened cost: 66,660 divided by 1,636 = 40.74 per billable hour. The 25-per-hour technician costs the business 40.74 per billable hour, a burden multiplier of 1.63.
The burden multiplier
The burden multiplier (fully-burdened cost per billable hour divided by base wage per hour) is a useful summary number for quick estimation.
Typical ranges:
- Residential service trade, modest benefits, mid-tier workers comp: 1.45 to 1.65
- Residential service trade, generous benefits, high workers comp (roofing, demolition): 1.70 to 2.00
- Commercial construction trade, union, high workers comp: 1.80 to 2.50
A business that does not know its burden multiplier is operating without a basic cost number. The owner should be able to recite it.
Using the rate
The fully burdened rate is the input to:
- Estimating. Job labor cost = estimated billable hours times fully burdened rate.
- T&M rate construction. Customer rate = (fully burdened rate plus other-cost recovery) divided by (1 minus target margin). See separate T&M rate-card reference.
- Job profitability analysis. Job gross profit = revenue minus (materials cost plus fully burdened labor cost plus subcontractor cost).
- Bidding. Fixed-bid pricing has to recover fully burdened labor; using base wage understates labor cost.
Reconcile, vary by trade, common failures
The burden calculation reconciles to the P&L over a full year: total wages, employer payroll taxes, workers comp premium paid, allocated GL, health insurance paid, retirement, other technician costs, divided by total billable hours across the fleet equals the fleet-average burdened rate. Drift between per-technician and fleet calculation indicates an estimating error or a reconciliation issue.
Typical burden multipliers by trade: HVAC 1.50 to 1.70, Plumbing 1.55 to 1.75, Electrical 1.50 to 1.70, Roofing 1.80 to 2.20, Carpentry 1.55 to 1.80, Painting 1.55 to 1.85, Landscaping 1.55 to 1.85, Cleaning 1.40 to 1.60, Pest control 1.50 to 1.70, Pool service 1.50 to 1.70. Workers comp rates per 100 of payroll drive most of the variation; actual rates depend on state, carrier, and experience modifier.
Common failures: wage rate used as cost (understates true cost 40 to 70 percent); PTO not subtracted from billable hours (overstates capacity, undercosts the hour); training time ignored; workers comp rough-estimated instead of pulled by class code from the policy; health insurance not allocated; owner-employee wages mixed into direct labor instead of overhead.
Recalculate the burden annually after year-end. Wages, workers comp experience modifier, health insurance, and SUTA all reset; update the T&M rate card and estimating templates to reflect.
References
- IRS Publication 15 - Employer's Tax Guide (FICA, FUTA, withholding rates)
- IRS Publication 15-A - Employer's Supplemental Tax Guide
- 26 USC 3101 and 3121 - FICA Tax provisions
- 26 USC 3301 - FUTA Tax provisions
- State workers compensation rate tables (state insurance department publications)
- NCCI (National Council on Compensation Insurance) classification codes and rates