What is labor cost?
Labor cost is the total amount a business spends on work performed by employees — from the base wage all the way through to employer-side taxes, benefits, and insurance. It is one of the largest operating expenses in most industries, and using wage rate alone to estimate it consistently produces understated costs.
There are two versions of labor cost that are used in different contexts:
The gap between the two matters most when burden is high or overtime is frequent. A worker paid $22/hr can easily cost $26–30/hr fully loaded — a 20–35% difference that affects every job quote and margin calculation that uses labor cost as an input.
Labor cost formula
The calculator uses five formulas built on four inputs:
Burden Cost = Base Wages × Burden Rate
Overtime Cost = Employees × OT Hours × Hourly Wage × OT Multiplier
Total Labor Cost = Base Wages + Burden Cost + Overtime Cost
Effective Hourly Cost = Total Labor Cost ÷ Total Hours Worked
Full cost build-up waterfall — standard crew preset
Default preset: 5 employees · 40 reg hrs · $22/hr · 18% burden · 5 OT hrs at 1.5×:
The effective hourly cost of $26.74 is $4.74 — or 22% — above the base $22 wage. This is the figure to use in job quotes and margin models, not the base wage rate.
What is payroll burden?
Payroll burden (also called labor burden or on-cost) is the collection of employer-side costs that sit on top of gross wages. Workers never see these costs directly — but every employer pays them. The burden rate expresses all of these as a single percentage of base wages, making it easy to apply in the formula.
Typical combined burden rates: office or knowledge work — 18–22%; manufacturing and retail — 22–28%; construction and field work — 28–40%+. The standard preset uses 18%; the labor-intensive preset uses 25%.
How to calculate labor cost — step by step
Worked examples
Four scenarios aligned with the calculator's three presets, plus a no-overtime lean case.
5 emp · 40 hrs · $22/hr · 18% burden · 5 OT hrs at 1.5×
Typical weekly crew with moderate burden and some overtime.
✓ Eff. hourly: $6,017 ÷ 225 hrs = $26.74/hr (+22% vs wage)
2 emp · 35 hrs · $20/hr · 14% burden · 0 OT
Small team, lower burden rate, no overtime — cleanest cost structure.
→ Eff. hourly: $1,596 ÷ 70 hrs = $22.80/hr (+14% vs wage)
12 emp · 45 hrs · $28/hr · 25% burden · 8 OT hrs at 1.5×
Field or manufacturing crew with high headcount, high burden, regular OT.
→ Eff. hourly: $22,932 ÷ 636 hrs = $36.06/hr (+29% vs wage)
Comparing regular vs 1.5× OT on total cost
5 workers · $25/hr · 8 OT hours each — regular vs time-and-a-half.
→ 8 OT hrs per worker adds $500 premium above straight-time cost.
Common mistakes to avoid
- Pricing jobs using wage rate instead of effective hourly cost. Quoting a job at $22/hr when the actual employer cost is $26.74/hr means every labor hour is under-priced by $4.74. This is the most common margin erosion mistake in service businesses.
- Ignoring payroll burden. Even at a conservative 18%, burden adds $792 to $4,400 of base wages — nearly 18% of cost that disappears from margin if not priced in.
- Treating overtime as an occasional exception when it is structural. If overtime is consistently required to meet output targets, it is a structural labor cost that belongs in every model. Factor in the OT multiplier or evaluate whether adding headcount is cheaper.
- Using estimated hours as if they were actual hours. Keep planned labor hours and actual hours labeled separately. Comparing a budget built on estimates to actuals built on real hours is the most common cause of confusing variance reports.
- Applying a single blended rate to workers with very different costs. A senior worker at $40/hr with full benefits has a very different effective cost than a part-time worker at $18/hr with no benefits. Blending them distorts any analysis that depends on role-level labor cost.
FAQ
What is the formula for labor cost?
Total Labor Cost equals Base Wages plus Burden Cost plus Overtime Cost. Base Wages = Employees × Regular Hours × Hourly Wage. Burden Cost = Base Wages × Burden Rate. Overtime Cost = Employees × OT Hours × Hourly Wage × OT Multiplier. Effective Hourly Cost = Total Labor Cost ÷ Total Hours Worked.
Does labor cost include benefits and payroll taxes?
It depends on which version you use. Direct labor cost includes only wages. Fully loaded labor cost — what this calculator and guide focus on — also includes payroll taxes, workers' comp, health benefits, retirement contributions, paid time off, and other employer-side overhead through the burden rate.
What is a typical payroll burden rate?
For most US employers: 18–22% for office and knowledge work, 22–28% for manufacturing and retail, and 28–40%+ for construction and field work. The most common starting point is 20–25% when you do not have a calculated burden rate from actual payroll data.
What is effective hourly labor cost?
Effective hourly labor cost is total labor cost divided by total hours worked. It captures the real per-hour employer cost including wages, burden, and overtime blended together. This is the figure to use in job quotes, bid pricing, and unit cost models — not the base wage rate, which understates cost by 15–35%.
Can labor cost be calculated for a single employee?
Yes — set the employee count to 1 in the calculator. This is useful for individual contractor pricing, setting freelance rates that cover employer-side costs, and reviewing a single employee's fully loaded cost before a promotion or raise decision.
When should I include overtime in the labor cost calculation?
Always include overtime if it regularly occurs in the period being analyzed. Overtime raises the blended hourly rate substantially — especially at 1.5× or 2×. If overtime is structural rather than occasional, it belongs in every estimate and budget. If it is genuinely rare, model it separately as a contingency.