Harvest
Time Tracking
Sign up free

Labor Cost Calculator for Contractors

Labor costs can account for up to 60% of construction expenses. Harvest helps contractors manage these costs by tracking time and expenses, ensuring project profitability.

Try Harvest Free

What should you charge for this job?

Tell us your costs and target profit. We'll give you a bid that covers labor, business overhead, and the margin you actually want to take home.

hrs

Total person-hours on the job. If two people work 20 hours each, that's 40.

$

What it costs you per hour (wages + payroll taxes) — not what you bill. Profit gets added on top.

$

Total cost of everything you'll buy or pull from inventory for this job.

%

Insurance, truck, fuel, tools, admin time, software. Sole contractors run 10–15%; small crews with a shop 15–25%.

%

What you keep after costs. 15% is survival, 20–25% is sustainable, 30%+ funds growth and slow seasons.

Quote this price $0.00
Labor $0.00
Materials $0.00
Overhead $0.00
Your total cost $0.00
Profit (what you keep) $0.00
Effective billable rate $0.00 / hr

Track real hours against this bid with Harvest

Walk through the entire flow below. Start a timer, check your reports, and create a real invoice — all in three clicks.

Go ahead — start tracking!

One click and you're timing. Try it right here: start a timer, add an entry, edit the details. This is exactly how it feels in Harvest.

  • One-click timer from browser, desktop & mobile
  • Works inside Jira, Asana, Trello, GitHub & 50+ tools
  • Duration or start/end — your call
  • Day, week & calendar views to stay on top of it all
  • Friendly reminders so no hour gets left behind
Acme Corp
Website Redesign
Homepage layout revisions
1:24:09
Content Strategy
Blog calendar planning
1:30:00
SEO Audit
Technical audit report
0:45:00
Brand Guidelines
Color system documentation
2:15:00
Logo Concepts
Initial sketches round 1
1:00:00
Today's total 6:54:09

Understanding Labor Costs in Construction Projects

Labor costs can account for a significant portion of construction project expenses, often comprising 25-40% of the total project budget. In some cases, this percentage can rise to as much as 60%, particularly in residential remodels. Accurate labor cost estimation is crucial as inaccuracies can lead to significant financial challenges, with U.S. construction companies facing an estimated $273 billion annually due to errors. This underscores the importance of precise calculation and tracking tools to manage projects effectively.

One of the biggest challenges contractors face is the comprehensive calculation of labor costs, which includes both direct expenses such as wages and indirect costs like benefits and payroll taxes. The "burdened labor rate"—the base rate plus additional costs such as payroll taxes, insurance, and benefits—can add between 24-70% to the base wage, depending on factors like union vs. non-union status. Despite these intricacies, many contractors still rely on outdated methods like paper timecards, which can lead to costly errors and inefficiencies.

Key Parameters for Accurate Labor Cost Calculations

To accurately calculate labor costs, contractors need to consider several key parameters. First, it's essential to determine the base hourly wage, which forms the foundation of the labor cost. Next, add the burdened rate, which includes payroll taxes, workers' compensation, and employee benefits. For example, a base wage of $30/hour, with a 20% labor burden and $5/hour in benefits, results in a total rate of $41/hour.

Additionally, contractors should account for potential overtime, which can increase labor costs by 5-20%. It's also important to stay updated with current labor rates and wage scales to avoid underestimating costs. Misestimates can result in financial losses and project delays. Using historical data and benchmarks can improve forecasting accuracy and help identify productivity trends, ensuring more precise labor cost estimates.

The Role of Harvest in Managing Project Budgets

While Harvest does not provide a specific labor cost calculator, it plays a crucial role in managing project budgets by tracking time and expenses. This capability allows contractors to monitor actual work hours and expenses against budgeted amounts, helping to prevent overruns. Harvest emphasizes the importance of accurate labor estimates by offering tools that track time and project profitability, crucial for managing construction projects.

By integrating time tracking with project management and expense tracking, Harvest supports comprehensive project oversight. Contractors can organize job costs, including labor and materials, as billable expenses or invoice line items, ensuring accurate billing. This integration helps contractors maintain control over their budgets and improve overall profitability.

Avoiding Common Mistakes in Labor Cost Estimation

Accurate labor cost estimation is vital for the success of construction projects, yet many contractors make common mistakes. Forgetting to include hidden costs such as taxes and benefits can lead to significant financial setbacks. Moreover, failing to account for overtime can result in substantial cost increases, potentially adding 5-20% to labor expenses.

To avoid these pitfalls, contractors should standardize their estimation processes and utilize templates. Regularly updating labor rates to align with market conditions and using real-time data can further enhance accuracy. By employing tools like Harvest for time and expense tracking, contractors can gain insights into actual project costs, helping to avoid surprises and ensure projects remain profitable.

Calculate Labor Costs with Harvest

See how Harvest tracks time and expenses to help contractors manage labor costs effectively. Ensure project profitability with detailed insights.

Screenshot showing Harvest's labor cost tracking interface.

Labor Cost Calculator for Contractors FAQs

  • Accurate labor cost calculations require knowing the base hourly wage, adding the burdened rate (including payroll taxes, insurance, and benefits), and accounting for overtime. Regular updates to labor rates and using historical data improve accuracy.

  • To account for overhead and markup, calculate your total direct costs and then apply a percentage that covers both overhead expenses and desired profit margin. While Harvest doesn't calculate these directly, it helps track expenses against project budgets.

  • A burdened labor rate includes the base wage plus additional costs such as payroll taxes, insurance, and benefits. This comprehensive rate ensures all employee-related expenses are covered, typically adding 24-70% to base wages.

  • Harvest helps by tracking actual work hours and expenses, which assists in aligning project budgets with real-time data. This feature supports accurate billing and project management, essential for controlling labor costs.

  • Updating labor rates regularly ensures that your estimates reflect current market conditions, wage scales, and seasonal variations. This practice helps avoid underestimation, which can lead to financial losses and project delays.

  • Harvest integrates time tracking with project management by organizing job costs as billable expenses or invoice line items. This integration provides comprehensive project oversight, helping maintain budget control and profitability.

  • Common mistakes include underestimating costs by omitting taxes and benefits, ignoring overtime, and using outdated data. Standardizing estimation processes and employing real-time data tools like Harvest can help avoid these errors.