Calculating overhead and profit correctly is essential for preparing a construction bid that is both competitive and financially sustainable. When it comes to bidding, there are a number of factors you should consider and calculate the overhead and profit on a construction bid. Excessive overhead will eat up the entire profit margin.
That’s why the majority of general contractors and developers are recommended to get professional estimation solutions or bidding support. If you know the overhead and profit on a construction project, you will be able to make informed decisions. Come with me to understand how to calculate overhead and profit on a construction bid in detail.
What Is Included in a Construction Bid?
Before we jump to discuss the method to calculate overhead and profit on a construction bid, you should know what is included in a proposal. This starts with identifying every direct and project-related expense required to complete the scope. Missing even a small component leads to a financial catastrophe. Here are the components that should be estimated and included in the bid.
Direct Costs
- Labor
- Materials
- Equipment
- Subcontractors
- Permits
- Material delivery
- Project-specific rentals
Indirect Project Costs
- Site supervision
- Temporary facilities
- Safety requirements
- Site security
- Temporary utilities
- Project administration
Business Overhead
- Office expenses
- Insurance
- Accounting
- Estimating software
- Salaries
- Vehicles
- Marketing
- Licenses
Profit
The profit of a construction project is added after accounting for the costs required to perform the project and operate the business. It should be treated as a deliberate pricing component rather than whatever remains after expenses are paid.
Construction Bid Cost Structure
| Cost Category | Examples | Included Before Profit? |
| Direct Costs | Labor, materials, equipment | Yes |
| Subcontractors | Plumbing, electrical, HVAC | Yes |
| Project Overhead | Supervision, temporary facilities | Yes |
| Business Overhead | Office, insurance, software | Yes |
| Profit | Contractor’s desired return | Added to establish final price |
How to Calculate Construction Overhead
Construction overhead consists of the business expenses that support the project but cannot be assigned entirely to one specific job. The overhead is also considered the additional expenses that were hidden during the process of estimation. The first step is to determine your annual overhead and then allocate an appropriate share of those costs to each project. I have broken down common overhead expenses:
Common Overhead Expenses
- Office rent and utilities
- Administrative salaries
- General liability insurance
- Accounting and legal fees
- Estimating software
- Office equipment
- Vehicles and general transportation
- Marketing expenses
- Licenses and professional fees
Determine Your Overhead Rate
Calculating the overhead is not that complex; if you have time and all resources, then you can calculate the overhead at home without any professional help. I have provided below the method to determine your overhead rate.
Overhead Rate = Annual Overhead ÷ Annual Revenue × 100
For example: $135,000 ÷ $1,350,000 × 100 = 10%
The contractor’s calculated overhead rate would therefore be 10%.
How to Calculate Profit on a Construction Bid
Once direct costs, project expenses, and business overhead have been accounted for, the contractor can determine the profit needed to make the project financially worthwhile. There are a number of components that determine the profit, including project complexity, contract risk, market competition, and schedule pressure or cash flow requirements.
Markup vs. Profit Margin
| Term | Meaning |
| Markup | Amount added to project cost |
| Profit Margin | Profit expressed as a percentage of final revenue |
| Cost | Total expense required to complete the project |
| Bid Price | Final amount charged to the client |
Markup Formula
Profit = Total Cost × Markup %
Margin Formula
Bid Price = Total Cost ÷ (1 − Desired Profit Margin)
For example, if the total project cost is $200,000:
| Target | Calculation | Result |
| 10% Markup | $200,000 × 10% | $20,000 profit |
| 10% Margin | $200,000 ÷ 0.90 | $222,222 bid |
Partner with Texas Estimate to Get Bidding Support
Texas Estimate is a professional estimating company that has been serving for more than 20 years. We provide detailed bidding support to help you increase the chances of winning a bid. We provide end-to-end services, providing you with feasibility analysis and a complete cost estimate for the construction project that you can use for bidding. Texas Estimates provides submission-ready reports so you do not need to revise them.
Contact us to get overhead and profit margin estimates.
FAQs
What is overhead in a construction bid?
Overhead includes business expenses that support construction operations but cannot be assigned directly to one project, such as office expenses, insurance, software, and administrative costs.
What is profit in a construction bid?
Profit is the amount a contractor intends to earn after covering the costs required to complete the project and operate the business.
How do you calculate overhead for a construction bid?
Calculate your annual business overhead and divide it by your annual revenue or chosen cost base to determine an appropriate overhead rate.
What is the difference between markup and profit margin?
Markup is added to the project’s cost, while profit margin represents profit as a percentage of the final selling price. A 10% markup does not equal a 10% profit margin.
Should overhead and profit be included in every construction bid?
Yes. A contractor should account for both when developing a sustainable bid. Excluding overhead can cause the project to appear profitable while the business is actually absorbing operating expenses.