Use the labor burden calculator with your payroll records
Use the labor burden calculator with costs that you can reconcile to payroll and policy records. Collect the items below for the same employee and period, then compare the calculator's assumptions with those records. Treat preset percentages as inputs to check, rather than rates that establish your business's employment cost.
| Collect | Find it in | Check before calculating |
|---|
| Gross compensation | Payroll register | Include the period's overtime and paid leave once. |
| Employer payroll taxes | Payroll tax reports and state rate notice | Separate employer expense from employee withholding. |
| Employer-paid insurance costs | Policy schedules, invoices and premium audits | Check covered payroll, classifications and rate units. |
| Employer benefit contributions | Benefit invoices and contribution records | Include the employer share. |
| Paid, worked and job hours | Payroll and job-coded time records | Keep leave and work categories distinct. |
Calculate taxes with annual wage limits before converting them into hourly amounts. A flat percentage applied to every wage dollar does not reflect a capped tax base. Use IRS employer tax guidance and your payroll records to check the tax inputs before relying on a result for an estimate.
What is labor burden?
Labor burden is the additional employer cost associated with employing a worker, expressed as dollars or a percentage of wages. Keep that figure separate from gross pay and the combined employment cost. The BLS compensation definitions include wages and salaries plus employer benefit costs in total compensation, helping clarify the distinction.
Give each worksheet total a clear label:
| Term | Meaning in the calculation |
|---|
| Gross compensation | Employee pay before employee deductions. |
| Additional employer costs | Selected employer taxes, insurance and benefit contributions beyond gross compensation. |
| Labor burden percentage | Additional employer costs divided by gross compensation, expressed as a percentage. |
| Annual employment cost | Gross compensation plus the additional employer costs included. |
| Employment cost per hour | Annual employment cost divided by the stated hours basis. |
Keep shared business expenses, such as office rent, in a separate overhead allocation. Decide where each expense belongs before adding it to an estimate. If an insurance expense is already included in an employee's cost rate, don't add the same expense again through overhead. The broader guide to calculate construction labor costs can help you assemble the rest of the job budget.
Calculate annual employment cost before an hourly rate
Calculate annual employment cost by adding gross compensation and the employer-paid costs attributable to that employee. Use one annual period throughout, and keep an itemized record of what the total includes. Reconcile that total to your records before calculating a burden percentage or selecting the hours denominator for an hourly allocation.
Annual employment cost = Annual gross compensation + Additional employer costs
Labor burden percentage =
(Additional employer costs ÷ Annual gross compensation) × 100
Start with the payroll register rather than rebuilding annual pay from a base wage alone. The IRS includes salaries, vacation allowances, bonuses, commissions and taxable fringe benefits in its general employment-tax wage definition. Check what your payroll total already includes before adding separate expense lines, particularly paid leave.
Check employer payroll taxes and wage limits
Enter the employer portion of each tax and its applicable wage base. For the calculation year shown below:
| Federal employer tax | Rate and wage treatment |
|---|
| Social Security | In 2026, the employer rate is 6.2%, with a $184,500 wage base limit. IRS Publication 15 |
| Medicare | The employer rate is 1.45%, with no wage base limit. IRS Medicare guidance |
| FUTA, before credits | In 2026, the rate is 6.0% on the first $7,000 paid to each employee as wages during the year. IRS FUTA guidance |
The maximum FUTA credit is conditional. An employer entitled to the full 5.4% credit has a 0.6% rate after credit; eligibility depends on state unemployment taxes being paid in full, on time, on the same wages subject to FUTA, and the state not being a credit reduction state. Check those conditions in the IRS FUTA credit guidance, rather than assuming the reduced rate applies.
FUTA is an employer expense, not employee withholding. Additional Medicare Tax has no employer share. The IRS also notes that a state unemployment wage base may differ from the federal base. Apply your state's rules and your assigned rate when calculating that cost.
Check insurance units and actual contributions
Read the policy's calculation basis before entering a rate. California's insurance regulator, for example, explains workers' compensation base premiums using classification payroll per $100 multiplied by the applicable rate, followed by rating and experience modifications. That is a California base-premium method, not a universal final premium or a general-liability rate.
For benefits, use employer contributions from invoices and payroll records. Keep employee deductions out of the additional employer-cost total. Label costs left out of the calculation so a partial result does not become a supposedly complete employment rate.
Choose paid, worked or job hours deliberately
Choose the hours denominator for the question you need to answer. Paid hours describe the hours covered by payroll; worked hours describe time spent working; job-assigned hours describe work allocated to customer jobs. Keep those categories separate so your hourly figure does not change meaning between payroll, estimating and reviewing a completed job.
| Hours basis | Use it to answer | Estimating check |
|---|
| Paid hours | What is employment cost per paid hour? | Account separately for costs left unallocated when you apply this rate only to job hours. |
| Hours worked | What is employment cost per hour actually worked? | Keep paid leave out of worked hours, while retaining its cost once. |
| Job-assigned hours | What annual employment cost should each assigned job hour carry? | Multiply by the same category of job hours; avoid allocating those costs again elsewhere. |
BLS defines paid leave as paid absence from work. Its cost-per-hour-worked method divides employer costs by hours worked, using work-schedule hours plus overtime minus leave hours. That worked-hours definition explains why paid and worked hours can produce different hourly figures.
If annual gross pay already includes vacation pay, adding that payment again counts it twice. Include the payment once in the cost total and handle the time distinction through the denominator. Count overtime hours as hours, rather than converting premium pay into extra hours.
For employees covered by the FLSA who are not exempt, federal overtime requirements generally require at least time-and-a-half the regular rate after 40 hours worked in a workweek. Use actual overtime compensation in the payroll total, rather than applying an overtime multiplier to every benefit or insurance expense.
Nonbillable work isn't automatically unpaid time. DOL hours-worked guidance states that travel between job sites during the workday as part of the employee's principal activity is work time. Separate the payroll decision from how you assign that time to a job or estimate.
Apply the rate to a construction estimate
Apply the rate to the same kind of hours used to calculate it. If you allocate annual employment cost across job-assigned hours, multiply that allocation rate by the job hours in your estimate. Keep the result separate from overhead and customer pricing, then check that another estimate line does not recover the same cost again.
Employment cost allocated per job hour =
Annual employment cost ÷ Annual job-assigned hours
Employment cost allocated to a job =
Job-hour allocation rate × Estimated job hours
Using a rate based on paid hours against only productive job hours leaves some annual costs unallocated unless you account for them elsewhere. Write down that recovery method rather than assuming the rate covers everything.
For a mixed crew, calculate each employee's expected hours at the corresponding cost rate and add the results. A simple average of different rates can mislead when employees contribute different amounts of time. Then build a construction estimate with the labor allocation clearly separated from other job costs and pricing decisions.
Compare estimated labor with recorded job hours
Compare estimated hours with recorded job hours before changing the burden rate. More time on a task and a higher employment cost per hour create different estimating problems. Review the hours and the rate separately, then decide whether the next estimate needs a different time allowance, a revised cost input or both.
ClockShark combines recorded employee time with base pay rates to calculate tracked job labor cost. Administrators using the Pro plan can access Job Costing. Keep your additional employer-cost calculation alongside that tracked job labor cost, rather than treating a base-pay figure as the full burdened amount.
Chesapeake Lawn and Home uses ClockShark for mobile crew timekeeping and QuickBooks payroll integration. Its workflow connects field time records with payroll. For your own estimates, use the recorded hours to check the time allowance, then reconcile the employment-cost inputs separately against payroll and policy records.
Update the calculation when a source input changes, rather than carrying the same percentage into every estimate. Keep the version date, records used and hours basis with the rate. That makes it easier to compare an estimate with payroll later and identify whether a difference came from pay, benefits, insurance or time.
Review the calculation after pay changes, insurance renewals, benefit contribution changes, new employer tax notices or changes to working and leave patterns. Reconcile estimated annual amounts against actual expenses before using them for another estimating period.
Check the denominator before borrowing any compensation benchmark. BLS's percent-of-total-compensation measure uses total compensation, while the burden percentage above uses gross compensation as its denominator. BLS also distinguishes benefit costs driven by wages from actuarially determined costs. Use those definitions to interpret a benchmark; use your own records to set the rate.
Frequently asked questions
Are subcontractors considered cost of labor?
Yes. Budget subcontracted work as a job cost, but don't automatically add your employee burden percentage to the invoice. IRS guidance generally treats independent-contractor payments differently from employee wages for payroll taxes. Confirm the actual relationship first: calling someone a subcontractor does not determine their status.
Does prevailing wage include fringe benefits?
Yes. For construction covered by the federal Davis-Bacon and Related Acts, prevailing wage combines the basic hourly rate and any fringe benefits listed for the applicable classification. DOL permits payment entirely in cash or through cash wages plus qualifying benefits. Check the contract's wage determination when budgeting the required amount.
Do reimbursements get taxed on payroll?
Reimbursements under an accountable plan are excluded from wages for federal employment taxes; nonaccountable-plan payments are taxable wages. IRS reimbursement rules require a business connection, timely expense substantiation and return of excess advances for accountable treatment. Check those conditions before including reimbursements in the wage base used to estimate employer payroll taxes.
Connect your estimate to job records
Keep a reconciled rate record with the cost inputs, annual period, version date and hours basis. Use it beside job-coded time records when comparing estimated and actual labor. To maintain that connection, track job and task hours for job costing and revisit the hours allowance and cost inputs before preparing the next estimate.
