The Short Answer

What Is an Overhead Rate?

Textbook Definition

A construction overhead rate is annual overhead cost divided by an allocation base, such as direct labor cost or total direct job costs. It spreads the cost of running the company across jobs.

In Plain English

Overhead is rent, office pay, insurance, trucks, software, and the owner’s time in the office. You cannot charge it to one job, so you spread it across all jobs with a rate.

Why It Matters

Why Does the Overhead Rate Matter?

Most bids that lose money are not wrong on materials. They are missing overhead. If a job does not carry its share of the rent, the office staff, and the insurance, the company pays that share out of profit.

Profit is thin to begin with. In the National Association of Home Builders’ remodelers study (2026 edition, 2024 data), net profit averaged 6.3% and gross profit 29.9%, and operating expenses were 23.6% of revenue. That is remodelers only, so builders in other trades will differ. Source: NAHB Eye on Housing, April 2026.

At a 6.3% net profit, a $1,000,000 year earns about $63,000. If you miss overhead by 5% of revenue, the profit is gone. See how to bid a construction job.

Signs your overhead is not in your price:

  • You add a flat 10% and call it overhead.
  • You do not know your yearly overhead total.
  • Your jobs look profitable and the bank balance does not.
  • You count the owner’s office time as free.
  • Your rate has not changed in two years.
  • You cannot say which base you use.
Two or more? Calculate the real rate before your next bid.

The Fix

How to Calculate Overhead in 5 Steps

Use last year’s numbers if you have them. If you are new, use a careful forecast.

  1. List every overhead cost.

    Rent, utilities, office staff pay, insurance not charged to jobs, vehicles, software, licenses, accounting, advertising, and owner pay for office work. If a cost can be charged to a job, track it as a job cost instead. See job costing.

  2. Add them up for the year.

    Use 12 months of actuals from your income statement or a forecast.

  3. Choose one base and name it.

    The base is what you divide by. Common bases are total direct job costs, direct labor cost, labor hours, or revenue. No base is right for everyone, so pick the one that tracks how your overhead is really used.

  4. Divide.

    Annual overhead divided by the base equals the rate. Always write the base next to the rate: 40% of direct labor is not the same as 11% of direct costs.

  5. Use it on every bid.

    Apply the rate to the matching base on each job, then add profit. Review the rate each quarter and when your costs change.

Worked Example: Same Overhead, Two RatesSay annual overhead is $300,000.Direct job costs for the year are $2,400,000. Rate: $300,000 ÷ $2,400,000 = 12.5% of direct costs.Direct labor cost for the year is $900,000. Rate: $300,000 ÷ $900,000 = 33.3% of direct labor.A job with $40,000 of direct labor carries $13,333 of overhead at the labor rate. A job with $120,000 of total direct costs carries $15,000 at the direct cost rate.Illustration only. Your numbers will differ. These are our own example numbers, not an industry average.

Choosing a Base

Which Base Should You Use?

BaseWorks best whenWatch out for
Total direct job costsYour jobs have a similar mix of labor, materials, and subs.A job heavy in pass-through materials or subs carries a lot of overhead.
Direct labor costMost of your work is done by your own crews.Jobs run mostly by subs carry little overhead, which may be wrong.
Labor hoursYour crews earn similar pay.Mixed pay levels skew the result.
RevenueYou want a simple check.It hides which jobs use the office most.

Base descriptions are common practice, summarized from vendor material. Ask your accountant which fits your books.

The line between overhead and job cost depends on your accounting method. The NAHB study counts indirect construction costs and owner pay inside operating expenses, so compare benchmarks only if your categories match. We did not find a reliable published overhead range for general contractors, so this page does not give one. Your own numbers matter more.

Dr. Paul’s Insight

Overhead is not a penalty. It is the cost of having a company that can answer the phone, pay people on time, and still be here next year. Price it on purpose. Then let a model do the math: the construction business plan template includes bids, job costing, and a financial model you can edit.

Work With Dr. Paul

Three Ways Dr. Paul Helps Construction Owners

Read the page and fix it yourself, or get help. Here is where each option fits.

Business Consulting

For owners stuck in the cash gap, bidding blind, or running every job themselves. Dr. Paul works with you on bids, cash flow, job costing, and getting you off the jobsite.

See consulting and prices →

Business Plan Writing

For contractors applying for a loan, a line of credit, a bigger bond, or an expansion. Dr. Paul writes the plan and the financial projections for you.

Construction business plan writer →

Business Plan Template

For owners who want to build it themselves. A construction-specific Word plan plus an Excel model with editable bids, job costing, labor, and equipment.

Get the construction template →

FAQ

Overhead Questions

What is overhead in construction?
Overhead is the cost of running the company that cannot be charged to one job, such as rent, office staff, insurance, vehicles, software, and licenses. You spread it across jobs with an overhead rate.
How do I calculate my overhead rate?
Add up a year of overhead costs and divide by an allocation base such as direct labor cost or total direct job costs. Write the base next to the rate, and apply it to the same base on every bid.
What is a normal overhead rate for a contractor?
It depends on your trade, size, and which base you use. The same overhead can be 12.5 percent of direct costs or 33 percent of direct labor in our example. We did not find a reliable published range, so calculate your own.
What is the difference between overhead and job cost?
A job cost can be traced to a specific job, such as crew wages and materials. Overhead supports the whole company. Where the line falls depends on your accounting method, so apply it the same way every time.
How is overhead different from profit?
Overhead is a cost of staying in business. Profit is what is left after job costs and overhead. If you leave overhead out of your price, you pay it out of profit.

Start with last year’s numbers. Call when you want help turning them into a model.

Get the Construction Template → Call or text (321) 948-9588

Keep Going

Related Construction Guides

Overhead connects to bidding, job costing, pricing, lenders, and the industry numbers.

How to Bid a Construction Job

The 8-step bid check, markup versus margin, and a walk-away number.

Construction Job Costing

Cost codes, weekly tracking, and a worked example of estimate versus actual.

Competing With Bigger Contractors

The too-low test, what to sell besides price, and how to pick a lane.

What Lenders Want

The reports to bring, the SBA loan fit, and a plan that proves it.

Construction Industry Statistics

Spending, jobs, pay, profit, safety, and survival, each with its source.

What Is Cost of Goods Sold?

How direct costs are counted.
← PreviousGovernment Work

Sources

Where These Numbers and Rules Come From

Every figure on this page comes from a source below. Dollar examples labeled as examples are illustrations, not projections for your business.

Dr. Paul Borosky, DBA, MBA

Business Consultant, Author & Educator | 14+ Years | 1,000+ Clients Served

Dr. Paul Borosky, DBA, MBA is a business consultant, author, and educator, and the founder of Quality Business Plan. He helps small business owners across the United States and Canada, including contractors and specialty trades, with business planning, financial modeling, fractional CFO services, and the everyday problems of businesses that depend too much on their owners. He is the creator of Dr. Paul’s Organize-Plan-Grow™ Strategy, author of numerous published books on Amazon including Top 5 Reasons Construction Companies Fail, and publisher of over 1,000 business-focused videos on YouTube.

About Dr. Paul The Construction Book YouTube Channel

This page is for general educational purposes only. It is not legal, financial, tax, accounting, insurance, or other professional advice. Construction laws, licensing rules, and tax rules vary by state and change over time. Dollar examples are illustrations, not projections for your business. For decisions about your own business, consult a qualified professional.