A contracting business must recover more than the direct cost of materials, labour and subcontractors. It must also recover the ongoing expenses required to operate the business, such as insurance, office costs, vehicles, software, accounting and administrative salaries.
These expenses are commonly called business overhead. If overhead is not properly included in project pricing, a job may appear profitable while the business as a whole loses money.
This guide explains how contractors can calculate their overhead, select a practical recovery method and include the correct allowance in every quotation.
What Is Business Overhead?
Business overhead consists of expenses that support the company but cannot be assigned entirely to one specific project.
Common overhead expenses may include:
- Office rent and utilities
- Business insurance
- Administrative and management salaries
- Accounting, legal and professional fees
- Software subscriptions and communication costs
- Marketing and advertising
- Vehicle expenses not charged directly to a project
- Licences, registrations and memberships
- Office equipment and supplies
- Depreciation of business assets
- Training and general safety expenses
- Interest and bank charges
Direct project costs should be recorded separately. For example, materials purchased for a particular job, project labour, subcontractors, equipment hire and permit fees normally belong in the job-cost estimate rather than general overhead.
Calculate Your Annual Overhead
Start by reviewing the business’s expenses for the previous 12 months. Remove direct project costs and personal expenses, then group the remaining operating expenses into clear overhead categories.
For example:
- Office and utilities: $18,000
- Insurance: $12,000
- Administrative salaries: $48,000
- Vehicles and fuel: $15,000
- Software and communications: $6,000
- Accounting and professional fees: $5,000
- Marketing and other expenses: $16,000
Total Annual Overhead = $120,000
Use realistic figures from accounting records whenever possible. If the business is new, prepare a carefully researched annual budget and review it regularly as actual expenses become available.
Choose an Overhead Recovery Method
There is no single recovery method suitable for every contracting business. The appropriate method depends on the type of work, the reliability of available data and the way projects use company resources.
Common methods include:
- Recovering overhead as a percentage of direct job costs
- Applying an overhead amount to each productive labour hour
- Allocating a fixed amount to each project
- Using different recovery rates for different types of work
The selected method should distribute the expected annual overhead fairly across the projects the business expects to complete.
Method 1: Percentage of Direct Job Costs
Overhead Recovery Rate = Annual Overhead ÷ Annual Direct Job Costs
If annual overhead is $120,000 and expected annual direct job costs are $600,000:
Overhead Recovery Rate = $120,000 ÷ $600,000
Overhead Recovery Rate = 20%
For a project with estimated direct costs of $30,000:
Project Overhead Allowance = $30,000 × 20%
Project Overhead Allowance = $6,000
The total cost base before profit would therefore be $36,000.
This method is simple to apply, but it may allocate too much overhead to material-intensive projects and too little to projects that require substantial management or labour.
Method 2: Overhead per Productive Labour Hour
Overhead Rate per Hour = Annual Overhead ÷ Annual Productive Labour Hours
If annual overhead is $120,000 and the business expects 6,000 productive labour hours:
Overhead Rate per Hour = $120,000 ÷ 6,000
Overhead Rate per Hour = $20
If a project requires 300 productive labour hours:
Project Overhead Allowance = 300 × $20
Project Overhead Allowance = $6,000
Productive hours should be estimated carefully. Holidays, training, administration, downtime and other non-project hours should not be treated as productive project hours unless the business has a clear reason for doing so.
Method 3: Fixed Overhead Amount per Project
A business that completes projects of similar size and duration may divide its annual overhead by the expected number of projects.
Overhead per Project = Annual Overhead ÷ Expected Number of Projects
If annual overhead is $120,000 and the business expects to complete 40 projects:
Overhead per Project = $120,000 ÷ 40
Overhead per Project = $3,000
Each project would include a $3,000 overhead allowance before profit is added.
This method is easy to use, but it may be unsuitable when projects vary significantly in value, duration, labour requirements or management effort.
Add Profit After Recovering Overhead
Overhead recovery is not the same as profit. Overhead pays the general expenses of operating the business, while profit is the amount remaining after direct costs and overhead have been recovered.
For example:
- Direct job costs: $30,000
- Overhead allowance: $6,000
- Total cost base: $36,000
- Target profit margin: 20%
Selling Price = $36,000 ÷ (1 − 0.20)
Selling Price = $36,000 ÷ 0.80
Selling Price = $45,000
The expected profit is $9,000, which equals 20% of the selling price.
For the complete pricing formula, read How to Calculate a Selling Price From a Target Profit Margin.
Review Overhead Recovery Regularly
An overhead rate should not be calculated once and used indefinitely. Business expenses, staffing levels, productive hours and annual workload can change.
Compare the following figures every month or quarter:
- Actual overhead incurred
- Overhead included in completed and active projects
- Expected annual project volume
- Actual productive labour hours
- Forecast overhead under-recovery or over-recovery
If the business is recovering less overhead than planned, future quotations may need a higher recovery rate. If recovery is consistently higher than required, review whether the cost forecast, workload assumption or allocation method should be adjusted.
The purpose is not to recover exactly the same amount every month. The goal is to recover the full annual overhead across the year’s projects.
Common Overhead Recovery Mistakes
Avoid these common mistakes:
- Treating overhead recovery as profit
- Using total employee hours instead of realistic productive hours
- Excluding owner or management compensation from business costs
- Counting the same expense as both a direct cost and overhead
- Using an outdated annual overhead estimate
- Assuming every project consumes overhead in the same way
- Applying a percentage without checking whether it recovers the annual requirement
- Reducing the overhead allowance merely to make a quotation appear competitive
- Failing to compare recovered overhead with actual overhead
A low quotation does not reduce the business’s real operating expenses. It only increases the risk that those expenses will remain unrecovered.
Use a Connected Job-Costing and Pricing Workflow
The AZELIVO Contractor Bid-to-Profit Toolkit helps small contractors:
- Build a detailed internal job-cost estimate
- Include an overhead recovery allowance
- Compare markup and target-margin pricing
- Prepare a client estimate and payment schedule
- Track budgeted and actual project costs
- Forecast final profit and gross margin
Using one connected workflow helps ensure that overhead is included consistently from the initial estimate through project completion.
Conclusion
Recovering overhead is essential for sustainable contractor pricing. Begin with a realistic annual overhead estimate, select a recovery method that reflects how the business operates and include the calculated allowance in every relevant project.
Overhead must be recovered before profit is measured. A project price that covers direct job costs but ignores business overhead can create the appearance of profit while weakening the company’s overall financial position.
Review actual overhead and recovery throughout the year. Consistent job costing, overhead allocation and profit tracking will help the business prepare more reliable quotations and make better pricing decisions.