Overhead and Profit Margins in Construction Bidding: What’s Normal?

Quick answer: Normal overhead for most contractors runs about 10% to 20% of annual revenue and normal net profit runs about 5% to 10% of the selling price. Together, that usually means a markup of roughly 15% to 40% on direct cost, depending on your trade, risk and competition. The “10 and 10” rule (10% overhead plus 10% profit) is a common baseline, but it often falls short of a firm’s real costs. Use your own overhead rate to set the number, then adjust for risk.

Key takeaways

• Overhead covers the cost of running your company. Profit is what remains after every cost is paid.
• Industry net profit margins sit in the single digits, so small pricing errors matter.
• The 10 and 10 rule adds up to a 21% markup, which is only a 17.4% margin.
• A flat markup guess can wipe out most of your profit without any warning.
• “Normal” changes with the type of bid. Public hard bids run tighter than private or residential work.

What Are Overhead and Profit in Construction Bidding?

Overhead and profit, often shortened to OH&P, are the two amounts a contractor adds to direct job costs to reach a bid price. Overhead recovers the cost of running the business. Profit is the reward for taking on risk and the money used to grow the company.

Direct costs are the labor, materials, equipment and subcontractors tied to one job. Overhead is everything else you pay to stay open, such as office rent, insurance, software, admin pay, trucks, marketing and accounting. Procore’s guide to contractor overhead and profit explains that a strong bid covers labor, materials and overhead, then adds margin so the business can reinvest.

Two types of overhead often get mixed up:

• General overhead supports the whole company. Examples: office staff, accounting, insurance and software.
• Job overhead supports one project. Examples: a site trailer, temporary power, a project manager’s time and permits.

Job overhead usually belongs in your direct cost or general conditions. General overhead belongs in your overhead rate. If you count the same cost in both places, you overprice the bid and lose work. If you count it in neither, you underprice it and lose money.

If you want to see how these pieces fit into a full bid package, read our guide on how to write a construction bid.

What Is a Normal Profit Margin in Construction?

A normal net profit margin in construction is in the single digits. Most studies place the average between 3% and 9% of revenue, which is thin for a business that carries heavy risk.

Here is what the main industry sources report:

Source	Segment	What it reports
NAHB Builders’ Cost of Doing Business Study (2023 data)	Single family builders	20.7% gross margin, 12.0% operating expenses, 8.7% net profit margin
NAHB Remodelers’ Cost of Doing Business Study (2024 data)	Residential remodelers	6.3% net profit margin, operating expenses near 23.6% of revenue
IBISWorld, as cited by Procore	Construction businesses overall	3% to 7% average net profit margin
CFMA financial benchmarks	Contractors overall	About 6.3% pre tax net income in 2023, with best in class firms near 11.9%
Levelset data (2019)	Contractors overall	Typical overhead near 11% and typical profit near 9%

Three patterns stand out. First, net profit rarely tops 10% unless a firm is well run. Second, operating costs vary widely, from about 12% of revenue for builders to nearly 24% for remodelers, and the remodeler figure includes owner pay. Third, older benchmarks look different from current ones, so always check the year behind a number.

Gross Margin, Net Profit and Markup: Why the Numbers Look Different

Contractors quote three different “profit” numbers and they are not interchangeable.

• Gross margin is revenue minus direct costs, divided by revenue. Overhead has not been paid yet.
• Net profit margin is what remains after direct costs and overhead, divided by revenue.
• Markup is the amount added to cost, shown as a percentage of cost.

This is why a builder can show a 20.7% gross margin and only an 8.7% net margin in the same year. The gap is overhead. When you read a benchmark, check which of the three it measures. For the conversion formulas and a markup table, see our guide to how to price a construction job for profit.

What Is a Normal Overhead Percentage in Construction?

Most contractors carry overhead between 10% and 20% of annual revenue. Smaller firms and remodelers often sit near the top of that range because they spread fixed costs across fewer jobs.

Calculate your own rate with this formula:

Overhead rate = Annual overhead costs ÷ Annual revenue

If you spend $240,000 a year on overhead and bring in $2,000,000 in revenue, your overhead rate is 12%. That is a number you can defend. A rule of thumb you found online is not.

Use at least twelve months of data. Include owner pay, a share of vehicle costs and any software you use. Then recalculate every year, because insurance, rent and wages keep rising.

Normal Overhead and Profit by Bidding Situation

There is no single normal. The right markup depends on who you are bidding against and how much risk you carry. The ranges below are planning ranges drawn from common estimating practice, not fixed rules. Check them against your own financials.

Situation	Typical combined OH&P markup on direct cost	Why it lands there
Competitive public hard bid	10% to 20%	Many bidders, price driven selection, thin margins
Private commercial, invited bidders	15% to 30%	Fewer bidders, schedule and track record matter
Residential and remodeling	20% to 35%	Smaller jobs, hidden conditions, higher overhead per job
Specialty subcontractor	15% to 30%	Depends on trade, labor burden and equipment
Insurance restoration in Xactimate	21% (10 and 10, compounded)	Carrier default, often disputed
Change orders and extra work	Set by the contract	Read the contract before work starts

Public work deserves extra care. Prevailing wage, bonding and strict bid forms change your costs and the low bid often wins. Our public bid estimating services are built around that tighter pricing.

The 10 and 10 Rule: What It Means and Where It Falls Short

The 10 and 10 rule means adding 10% for overhead and 10% for profit to direct costs. Applied in sequence, it works like this:

• Direct cost: $100,000
• Add 10% overhead: $110,000
• Add 10% profit on that subtotal: $121,000

The total markup is 21%, not 20% and the real margin is about 17.4%. That margin has to pay for all your overhead before you see any profit. Attorney and claims veteran commentary in The Folly of 10 and 10 makes the same point about how little room that leaves.

Now test it against reality. Suppose your true overhead is 15% of the selling price:

• Price: $121,000
• Overhead at 15%: $18,150
• Profit left: $121,000 minus $100,000 minus $18,150 = $2,850
• Net margin: about 2.4%

You did the job, carried the risk and kept 2.4%. That is why many contractors consider 10 and 10 too low. It survives mainly in insurance restoration pricing and some competitive commercial bids. Consumer advocates also discuss how it shows up in claims in Un-Adjusted’s overhead and profit guide, which lists common splits such as 5 and 10, 10 and 10, 10 and 15 and 20 and 20.

Use 10 and 10 as a starting point to test, never as the answer.

Worked Example: Flat Markup vs Margin Based Pricing

Here is a bid that shows how much the method matters. A subcontractor has $500,000 in direct cost. Annual overhead is $240,000 on $2,000,000 of revenue, so the overhead rate is 12%. The target net profit is 8%.

Method 1: Margin based pricing

Selling price = Direct cost ÷ (1 − overhead % − profit %)
$500,000 ÷ (1 − 0.12 − 0.08) = $625,000

• Overhead recovered: 12% of $625,000 = $75,000
• Profit earned: 8% of $625,000 = $50,000
• Markup on cost: 25%

Method 2: A flat 15% markup guess

Price: $575,000

• Overhead recovered at 12%: $69,000
• Profit left: $575,000 minus $500,000 minus $69,000 = $6,000
• Net margin: about 1%

The flat guess gave up $44,000 of profit on a single bid. This is why a clean takeoff and a real overhead rate matter. If the quantities are wrong, every percentage after that is wrong too. Learn how that first step works in what a construction takeoff is and see how the documents differ in takeoff vs estimate vs bid.

When to Bid Above or Below the Normal Range

Your overhead rate sets the floor. Risk and market conditions move the profit line above it. Raise profit when:

• Plans are incomplete, so scope risk is high
• The schedule is tight or the site is hard to access
• The owner or general contractor pays slowly
• Your crews are already busy and a new job strains capacity
• Retainage or bonding ties up cash for months
• Materials or labor are volatile

Hold profit steady or trim it slightly, when:

• Your backlog is thin and the job fits your crew well
• The scope is clear and you have built it many times
• The client brings repeat work

Do not cut overhead recovery to win. If you must lower the price, remove scope, offer an alternate material or change the payment terms. Cutting profit to beat a rival is one of the patterns we cover in why contractors lose bids and winning at the wrong price is worse than losing the job.

Contract type also changes how risk is priced. A fixed price shifts risk to you, while unit pricing shares it. We compare both in unit price vs lump sum estimating.

Costs That Belong in Overhead (and Ones That Do Not)

Keep your overhead pool clean so you do not double count.

Usually overhead:

• Office rent, utilities and internet
• Admin, estimating and accounting salaries
• General liability and business insurance
• Software, phones and licenses
• Marketing and bid preparation costs
• Vehicles and tools not charged to a job
• Owner pay not charged to a job

Usually direct job cost:

• Field labor at a fully burdened rate (see Autodesk’s construction labor burden guide)
• Materials, waste and freight
• Subcontractors and equipment rentals
• Permits and bonds tied to the job
• Site supervision, temporary facilities and cleanup

Contingency is separate from both. It covers unknowns and should reflect how complete the drawings are. The AIA offers helpful context on managing the contingency allowance.

Common Mistakes When Setting Overhead and Profit

1. Using last year’s overhead rate. Costs rise and an old rate leaks margin.
2. Confusing markup with margin. A 25% markup produces a 20% margin, not 25%.
3. Dividing overhead by cost instead of revenue. Decide on one base and stay consistent.
4. Counting job costs twice. A site trailer in both overhead and direct cost inflates the bid.
5. Ignoring cash flow. Slow pay and retainage act like a hidden cost of money.
6. Skipping subcontractor scope checks. A low sub quote with gaps eats your profit later.
7. Copying a competitor’s markup. Their costs are not your costs.

Expert Insight from Land Mark Estimations

When our estimating team reviews a bid package, the profit percentage is rarely where the problem starts. The trouble is usually upstream: a missed quantity, an addendum that changed scope or an overhead rate set years ago and never updated. A markup can only protect a margin when the cost underneath it is complete.

That is why we focus on detailed quantity takeoffs and trade by trade pricing before overhead and profit are applied. Clean direct costs make your markup decisions easier and your bids easier to defend. You can see our format in these free construction estimating samples and browse our past projects.

How an Outside Estimator Helps Protect Your Margin

Many contractors outsource takeoffs and estimates during busy periods so their own team can focus on winning and building work. The right partner gives you accurate quantities by trade, which keeps your overhead and profit math from sitting on a shaky base.

• General contractors can use our general contractor estimating services, including commercial and residential work.
• Trade contractors can use our subcontractor estimating services for scopes such as roofing, concrete and MEP.
• Many questions are answered in our construction estimating FAQs.

For a general picture of the profession, the U.S. Bureau of Labor Statistics describes the role of cost estimators.

Frequently Asked Questions

Conclusion

A normal overhead and profit margin in construction bidding is not one fixed number. It is the result of your real overhead rate, the risk on the job and the market you bid in. Benchmarks give you a reality check and your own financials give you the answer. Start with a complete takeoff, calculate overhead from real numbers, price with margin and protect that margin when competitors push you down.

Need accurate takeoffs and bid ready numbers? Contact Land Mark Estimations for a free quote, explore our construction estimating services or browse more bidding and business tips for contractors.