Labor costs can run over budget long before the extra hours show up in payroll. To catch overruns early, compare estimated and actual labor hours by project phase and cost code while work is underway. This helps you spot where crews are spending more time than planned and make adjustments before the gap grows.
Even a small difference between planned and actual hours can add up across a project. Without regular tracking, it becomes harder to see which tasks are taking longer, where labor is being used inefficiently, and how much the extra time is costing.
This article explains how to set a labor-hour budget, monitor hours in five steps, track the right metrics, choose suitable tools, and keep work within plan.
Why Should Construction Companies Monitor Labor Hours?
You should monitor labor hours because labor is a large share of project cost, and small overruns add up quickly. Bridgit reports that labor typically makes up 20% to 40% of a construction project budget. The share depends on the trade and project type.
Worker shortages make hours harder to control. In the 2025 workforce survey by the Associated General Contractors of America (AGC) and NCCER, 45% of firms said worker shortages had delayed their projects. Shortages push you toward overtime, rushed hiring, and new crew members who need time to get up to speed.
Finding out about a labor overrun after the job closes is frustrating, because by then you can’t change anything. When you compare estimated vs actual labor hours in construction every week, or every day on busy jobs, you still have time to act.
How to Set a Construction Labor Hours Budget
A construction labor budget starts with estimating how many hours each phase requires, then calculating the labor cost. Tracking hours separately from dollars makes it easier to see whether work is taking longer than planned before costs rise.
Build your budget in these steps:
- Break down the job: Divide the project into phases and cost codes. Estimate the hours needed for each task based on its quantity and expected hours per unit.
- Calculate labor costs: Multiply the estimated hours by the fully loaded hourly rate, including wages and applicable labor costs.
- Use past project data: Review similar completed jobs to estimate how long each task is likely to take.
- Record planned quantities: Note how much work each phase should deliver so you can compare actual hours per unit with your estimate.
- Separate change orders: Track approved changes to the scope separately so additional work doesn’t appear as an unexplained overrun.
- Allocate hours across the schedule: Distribute budgeted hours by week or phase to give project managers regular checkpoints for comparing planned and actual labor.
For example, if a framing phase is budgeted for 800 hours at a fully loaded rate of $52 per hour, the labor budget is $41,600. You can then compare actual hours and costs against these figures as work progresses.
How to Monitor Construction Labor Hours Against Your Budget
Monitoring works as a five-step cycle that you repeat daily or weekly, depending on the job’s size. Each round shows you where hours are going, how far they’ve drifted from plan, and what to change before the next shift.
Step 1: Track Actual Labor Hours Daily
Record hours every day and make sure each hour lands on the right job, phase, and cost code. One worker can have several entries on the same day if they move between tasks. Good construction time tracking makes this split easy to capture in the field.
When workers move between projects or tasks during a shift, record their time separately under the appropriate job or cost code. This prevents hours from being assigned to the wrong project and makes labor cost comparisons more reliable.
Daily records also support compliance. The US Department of Labor (DOL) requires payroll records to show hours worked each workday and workweek for non-exempt workers, and some states add their own rules. Fix miscoded time the same day, or at least before you approve time cards. Paper sheets and end-of-week data entry delay what you can see and invite errors.
Step 2: Compare Actual Hours Against Budgeted Hours
Compare hours at the phase or cost-code level, not just the job total. Otherwise, one phase that’s running well can hide another that’s running over. Comparing estimated vs actual labor hours in construction at this level shows exactly where the problem sits.
Always compare the percentage of hours used with the percentage of work completed. For example, imagine a construction project phase with 200 budgeted labor hours. If the crew has already used 140 hours (70% of the budget) but completed only 50% of the work, this could indicate a potential labor overrun. It’s a signal to investigate, not an automatic reason to cut crew size. Check cost-code accuracy, productivity, and scope changes first.
Step 3: Calculate Labor Hour and Cost Variances
Labor hour variance tells you how far off plan you are, in hours and in dollars. Use these three formulas:
- Hour variance: Budgeted hours minus actual hours. A negative number means you’re over.
- Variance %: Hour variance divided by budgeted hours.
- Cost variance: Hour variance multiplied by the burdened rate. For phases still in progress, use earned hours (the hours budgeted for the work actually completed).
For an unfinished phase, comparing actual hours against the entire phase budget can be misleading. Instead, calculate the hours that should have been used for the work completed so far. For example, if a phase has a 500-hour budget and is 40% complete, it has earned 200 hours. If workers have already logged 240 hours, the phase is 40 hours over its expected labor usage at that stage.
The table below shows an illustrative example. It assumes a finished phase budgeted at 500 hours and a burdened rate of USD 52 per hour.
| Item | Value |
|---|---|
| Budgeted hours | 500 hours |
| Actual hours | 560 hours |
| Hour variance | -60 hours |
| Variance % | -12% |
| Cost variance | -USD 3,120 |
In this example, the phase used 60 more hours than planned, which cost an extra USD 3,120. Keep hours variance apart from rate variance. Rate variance comes from higher wages or overtime premiums, not from extra time.
Step 4: Monitor Labor Productivity and Remaining Hours
Track labor productivity in construction as hours per unit, such as hours per fixture or per linear foot, on comparable work. Then estimate the remaining hours. Ask what the phase will total at completion if the current rate continues, and subtract the hours you’ve already used.
For example, if a phase is 50% complete after using 300 labor hours, continuing at the same productivity rate would require approximately 300 more hours, or 600 hours in total. If the original budget was 500 hours, the projected overrun is 100 hours. This gives managers an opportunity to investigate and adjust the work plan before the phase is finished.
If hours keep burning faster than work progresses, update your forecast right away. Raise the issue with the project manager while there’s still enough work left to recover.
Step 5: Adjust Crew Scheduling and Labor Allocation
Schedule crews around work that’s actually ready. That means materials, equipment, access, inspections, and predecessor work are in place. If the work area isn’t ready, delay the start, reassign part of the crew, or remove the blocker.
Industry data can help illustrate the risks of overstaffing, but each project’s actual productivity and working conditions should guide staffing decisions. Before you approve overtime, ask why the regular hours were lost. Our free overtime calculator can help you see the cost of premium hours. Don’t cut the crew automatically; find the cause first.
Key Metrics to Track Construction Labor Budget Performance
These metrics turn estimated vs actual labor hours in construction into clear signals you can act on. The table shows what each one tells you.
| Metric | What it tells you |
|---|---|
| Budgeted vs actual hours | Whether you're over or under plan |
| Hour variance and variance % | How far off plan you are |
| Cost variance and cost performance index (CPI) | Whether money follows the hours. A CPI below 1 means you're over budget. |
| Hours per unit | How efficient the crew is on comparable work |
| Percent complete vs percent of hours used | Whether hours are burning ahead of progress |
| Overtime share | Whether premium hours are becoming routine |
| Rework hours | How much labor goes into correcting work |
Cost Performance Index (CPI) is calculated by dividing the budgeted cost of completed work by the actual cost of that work. A CPI of 1 means spending is on plan, while a value below 1 indicates that the work is costing more than budgeted.
Percent complete vs percent of hours used is usually the earliest warning sign. Review it weekly at minimum and daily on labor-heavy phases.
Tools for Tracking Construction Labor Hours and Costs
The right tool depends on how many crews you manage and how quickly you need to see labor costs. Common options include:
- Spreadsheets and paper timesheets: Easy to start with, but manual entry can lead to errors and make it harder to spot overruns before payroll. See our comparison of construction time cards vs. digital timesheets for more details.
- Time tracking apps: Construction time tracking software records hours by job, phase, or cost code. For example, our employee time clock software lets construction companies track employee hours across multiple job sites and organize labor time by job and cost code.
- Accounting and ERP systems: These tools help track labor costs alongside other project expenses, though detailed time data may not be available as quickly as it is recorded in the field.
- Project management platforms: These help teams monitor work progress and compare completed work with planned schedules, providing context for labor-hour variances.
For contractors who need accurate field time records, a time tracking app such as Fareclock can help managers see how labor hours are distributed across jobs and phases before reviewing project costs.
When you compare tools, look for cost codes, GPS or geofencing, offline clock-ins, approval workflows, alerts, and payroll or accounting integrations.
Best Practices for Keeping Construction Labor Hours on Budget
A few consistent habits can help keep labor hours close to the estimate:
- Review hours regularly: Check hours and exceptions daily on labor-heavy jobs, then review phase-level variances each week.
- Use the correct cost codes: Record hours against the right phase, task, or cost code so you can see where labor is running over budget. Review cost-code assignments before approving timecards, especially when employees work across multiple project phases during the same shift.
- Track rework separately: Record rework and change-order hours under separate codes or flags to distinguish them from planned work.
- Keep crews consistent: Frequent crew changes can affect productivity as new workers learn site procedures and team routines.
- Use past project data: Compare current performance with similar completed jobs. Productivity targets should reflect the trade, project type, and working conditions.
- Set budget checkpoints: Review labor usage at 75%, 90%, and 100% of the budgeted hours to identify overruns before they grow. A payroll calculator can help you verify labor totals against expected hours at each checkpoint. Compare these checkpoints with the percentage of work completed, not just the total hours recorded.
- Check whether changes work: After adjusting crew assignments or work plans, review the next shift or reporting period to see whether the variance has narrowed.
How Fareclock Helps Monitor Labor Budgets
Fareclock helps construction companies track employee working hours across multiple job sites and organize labor data by project, phase, and cost code. Accurate time records give managers a clearer picture of where labor hours are being spent. This provides the data needed to compare actual labor usage against project budgets.
- Set and monitor labor budgets: Fareclock allows administrators to set daily and weekly hours budgets for the organization, departments, and other groups. Managers can track these scheduled paid hours against budget limits and identify potential overruns.
- Track labor hours by job and cost code: Fareclock’s job costing tools help assign employee hours to specific projects, phases, and cost codes. Workers can switch between jobs or tasks during the day, making it easier to track labor usage across different construction activities. Read more on how we enhance job classifications, using job phases and cost codes.
- Review and approve schedules: Authorized managers can review schedules by organizational group and approve scheduling periods. This ensures planned hours are reviewed against labor budgets before schedules are finalized.
- Verify employee clock-ins: AI facial recognition with liveness detection helps prevent buddy punching and inaccurate attendance records. GPS tracking and geofencing provide additional location verification for employees working across job sites.
- Monitor overtime and labor costs: Fareclock supports overtime rules, multiple pay rates, and reporting features that help managers review working hours and labor-related expenses.
- Review and approve timecards: Supervisors can review time records, correct discrepancies, and approve employee hours before payroll processing. This helps reduce errors that could affect job costing and labor budget analysis.
- Track hours at remote job sites: Offline time tracking allows workers to record their hours even when internet connectivity is unavailable. Their punches synchronize when the connection returns, helping maintain accurate records across remote construction sites.
- Generate labor and attendance reports: Fareclock provides more than 28 reports covering employee hours, overtime, attendance, labor budget, and other workforce data. Managers can use this information to review labor usage and support project budget comparisons.
- Control schedule changes and analyze labor hours: Fareclock can restrict changes to approved schedules, either preventing all changes or allowing changes that do not add hours. The Labor Budget report compares budgeted, scheduled, and actual hours to help administrators monitor labor costs and identify discrepancies.
- Simplify payroll preparation: Payroll-ready timecards and export options help reduce manual work when preparing employee hours for payroll.
Fareclock provides the time tracking and job costing data needed for labor budget analysis. Project managers can use these records alongside their estimated budgets and project progress information to identify potential overruns and make informed staffing decisions. Read How to Set Up Schedule Budgets and Approve Schedules in Fareclock.
You can try Fareclock free for 30 days to see how it fits your crews. If you’d like to see your crews’ hours by job and cost code before payroll, start your free trial of Fareclock.
FAQ
What causes actual labor hours to exceed estimates?
The usual causes are underestimated scope, waiting on materials or access, rework, avoidable overtime, overmanning, thin supervision, crew turnover, and miscoded hours. The size of an overrun varies by project, so compare current performance with your own estimates and historical job data rather than relying on a single industry average.
How do labor hour variances affect construction project budgets?
Labor is roughly 20% to 40% of project cost, so a small hours overrun moves the whole budget. For example, a 7% overrun on a USD 1,000,000 labor budget adds USD 70,000 in labor cost.
Can construction time tracking software help control labor costs?
Yes, it can help when it ties hours to jobs and cost codes while work is active. That lets you spot problems and act before payroll closes. Results depend on how consistently your team reviews the data.
How do you calculate labor hours for a construction project?
Multiply the quantity of work by the hours per unit for each task, then add up all the tasks. To get the labor cost, multiply the total hours by your burdened hourly rate.
How do you know if a construction project is over its labor budget?
Compare the percent of hours used with the percent of work complete. If hours are burning faster than progress, or your labor hour variance is negative, the job is trending over budget.
How often should construction labor hours be reviewed?
Review hours and exceptions daily on labor-heavy jobs, and check phase variance and forecasts weekly. Smaller or shorter jobs may only need a weekly review.
Can Fareclock track scheduled hours against labor budgets?
Yes, Fareclock allows administrators to set daily and weekly labor budgets for the organization, departments, and other groups. Managers can monitor scheduled paid hours directly in the schedule and identify when hours exceed the allocated budget.
Can Fareclock restrict changes after a schedule is approved?
Yes, Fareclock allows administrators to configure schedule controls to either prevent all changes to approved schedules or allow changes that do not increase scheduled hours. Only managers with the appropriate Approve schedule permission can approve schedules.
