Preferred CFO Insights

7 Most Common Financial Mistakes Construction Companies Make

Written by Jerry Vance | Jan 7, 2025, 12:24:56 AM

Updated August 2026

Construction companies operate in an industry where financial challenges can quickly become operational challenges. Long project timelines, large material purchases, upfront labour costs, changing market conditions, and delayed payments can all put pressure on cash flow and profitability.

In 2026, construction companies also have more financial data and technology at their disposal than ever before. The challenge is turning that information into better decisions.

Here are seven of the most common financial challenges construction companies face and what you can do to address them.

1. Doing Work without Proper Documentation

Construction is a hands-on industry. Decisions and changes are often made in the field based on a quick conversation, phone call, or handshake. The problem starts when additional or changed work moves forward without a formal change order.

When the change eventually reaches the office, the pricing may already have been negotiated on-site. In some cases, the work gets invoiced without anyone taking the time to calculate the actual costs and expected margin.

Your company may complete additional work that produces little profit, or even creates a loss.

Why It’s an Issue

Undocumented changes can lead to missed revenue, inaccurate project reporting, disputes with customers, and reduced profit margins. Even when the work is eventually billed, failing to price the change correctly can leave your company responsible for costs it never intended to absorb.

How to Fix It

Start with a detailed scope of work and establish a formal change-order process before the project begins. Field teams should know exactly how changes are documented, priced, approved, and communicated to the finance team.

Give your team time to calculate the financial impact of a change instead of requiring them to make pricing decisions on the spot. Ideally, the change order should be signed by both the contractor and customer before additional work begins.

Need help improving your financial processes? A CFO consultant can help evaluate your current workflows, identify gaps, and establish processes that give leadership better financial visibility.

2. Invoicing Late and Missing Bank Draws

Many construction projects have specific invoice submission deadlines tied to monthly draws or other payment schedules. Miss the deadline, and your company may have to wait until the following month to submit an invoice and receive payment.

That delay can have a meaningful impact on cash flow.

Why It’s an Issue

Your customers may have payment schedules, but your employees and vendors still need to be paid on time. When invoicing becomes delayed or inconsistent, your company may have to front project costs for longer than planned. That can reduce the cash available for payroll, vendors, new projects, and business growth.

How to Fix It

Start by identifying where the invoicing process is breaking down. Is the field team providing information too late? Are project managers missing documentation? Is the accounting department overwhelmed? Are approval processes creating unnecessary delays?

A stronger reporting system and clearer communication between project management and finance can help shorten the time between completing work and receiving payment. A rolling cash flow forecast can also help you anticipate upcoming funding needs rather than reacting after cash becomes tight.

If late invoicing is putting pressure on your business, it may be time to review the process from the top down. An outsourced CFO can help identify opportunities to improve cash flow, reporting, forecasting, and financial processes.

3. Not Understanding the True Cost of a Project

One of the most common financial mistakes construction companies make is failing to understand their costs in enough detail. Materials and labour are obvious expenses, but they aren't the only costs that affect project profitability. Equipment, depreciation, administrative expenses, insurance, property costs, subcontractors, and other overhead expenses can all influence the true cost of completing a job.

If those costs aren't properly accounted for, your company may bid on projects without a clear understanding of the margin you're actually likely to earn.

Why It’s an Issue

Without accurate cost information, it's difficult to know which projects are truly profitable. You may bid too low and win work that produces disappointing margins.

You may also bid too high and lose projects that could have been profitable. Even small inaccuracies can become significant when they are repeated across multiple projects.

How to Fix It

Start with your income statement and project-level financial reporting.

Ask:

  • Are expenses being properly allocated to individual jobs?
  • Are all project-related costs being captured?
  • Are equipment and administrative expenses accounted for?
  • Are overhead costs included in your pricing model?
  • Are estimated and actual project costs being compared regularly?

The goal isn't simply to produce accurate financial statements. It's to create financial information your leadership team can actually use to make better bidding, pricing, and operational decisions.

Want greater clarity into your company's numbers? Learn more about financial forecasting and budgeting and how strategic financial planning can support more informed decisions.

4. Misallocating Costs Between Projects

Understanding costs is only part of the equation. Construction companies also need to allocate those costs accurately.

Each project's revenue, labour, materials, equipment, subcontractor expenses, and other costs should be tracked consistently. Without accurate project-level data, it can be difficult to determine which jobs are driving profitability and which ones are quietly reducing it.

A company may appear profitable overall while individual projects tell a very different story.

Why It’s an Issue

When financial information isn't properly allocated, leadership has less visibility into project performance. That makes it harder to identify underperforming jobs, improve future bids, or determine where operational changes could increase margins.

A detailed view of project profitability can also reveal opportunities that aren't obvious in company-wide financial statements.

How to Fix It

Review how your accounting and project management systems capture and allocate costs. Establish consistent processes for assigning labour, materials, equipment, overhead, and other expenses to the appropriate projects. Then compare estimated costs with actual costs throughout the project, not just after it closes. You can be interested in our article on how to increase profits by increasing customer satisfaction here.  

If your accounting team is focused primarily on bookkeeping and reporting, consider adding strategic financial leadership to the team. A fractional or outsourced CFO can help turn project-level financial information into actionable insights.

Don't wait until a project is finished to find out it wasn't profitable. Contact Preferred CFO to discuss how stronger financial reporting and analysis can help you identify problems earlier. 

5. Using Fixed Material Costs without Adequate Protection

Material prices can change significantly during a long construction project. When contracts lock in material pricing without providing a mechanism for adjustments, contractors may be left absorbing unexpected increases.

This can become especially problematic when projects have long timelines between bidding, procurement, and completion.

Why It’s an Issue

A project that looked profitable when it was bid may become considerably less profitable when material costs increase.

Without appropriate contract language, the contractor may have limited options for recovering those additional costs from the customer.

How to Fix It

Review your contracts and consider whether they appropriately address significant material price changes. Depending on the project and contractual arrangement, escalation provisions can provide a mechanism for adjusting prices when defined material costs move beyond an agreed threshold.

The key is clarity. Customers should understand how and when an adjustment may occur before the project begins.

Material cost volatility doesn't have to turn a profitable project into a loss. Work with your legal and financial advisors to evaluate how your contracts, pricing strategy, and project forecasts address changing costs.

6. Maintaining Insufficient Cash Reserves

Construction companies often have to pay employees, subcontractors, and vendors well before they receive full payment from customers. Depending on the size and timeline of a project, the gap between cash going out and cash coming in can be substantial.

That makes cash reserves especially important.

Why It’s an Issue

Construction already carries significant financial risk. If your company doesn't maintain enough liquidity, an unexpected delay, cost increase, or slow customer payment can quickly create a cash crunch.

Insufficient reserves can also force a company to rely on short-term borrowing, delay payments, or pass up opportunities because available cash is tied up in existing projects.

How to Fix It

Start by understanding your cash conversion cycle and identifying the periods when your company typically experiences the greatest cash pressure.

Depending on your contracts and business model, strategies may include:

  • Requiring an appropriate deposit before work begins
  • Negotiating more favorable vendor payment terms
  • Improving invoicing speed
  • Monitoring accounts receivable closely
  • Building cash reserves during stronger periods
  • Using rolling cash flow forecasts
  • Planning for seasonal fluctuations and unexpected expenses

A 13-week cash flow forecast can provide a particularly useful near-term view of expected cash inflows and outflows.

Cash flow problems are easier to manage when you see them coming. A fractional CFO can help your team build forecasting processes that provide greater visibility into upcoming financial needs.

7. Front-Loading Costs Across Projects

Another serious financial issue occurs when a construction company uses cash from one project to cover expenses associated with another.

This can happen when a project is improperly bid, experiences delays, runs into labour overruns, or otherwise consumes more cash than expected. The company may use funds from a newer project to keep the struggling project moving. It can feel like a temporary solution, but it can quickly become a cycle.

Why It’s an Issue

Using funds from one project to support another can create financial risk across multiple jobs. If the second project later experiences unexpected costs, the company may not have enough cash available to complete it. This can lead to project delays, strained customer relationships, vendor issues, and additional borrowing.

How to Fix It

Front-loading costs is often a symptom of broader financial and operational problems. Accurate bidding, project-level forecasting, appropriate contingencies, and regular job-cost analysis can all help reduce the risk. Consider implementing a rolling forecast for each major project and comparing projected costs with actual results throughout the project lifecycle.

Your bids should also reflect when costs will occur and when customer payments are expected. The goal is to avoid creating a significant cash gap between the work your company performs and the money it receives.

If your company is constantly moving cash from one project to another, don't treat it as simply a cash flow problem. It may indicate that your bidding, forecasting, project accounting, or pricing processes need attention.

How Can a CFO Help a Construction Company?

Construction companies don't necessarily need to hire a full-time CFO to gain access to strategic financial expertise.

An outsourced or fractional CFO can work alongside your existing accounting team to improve financial visibility, strengthen forecasting, evaluate profitability, improve cash flow management, and support strategic decision-making.

Preferred CFO's team works with businesses across industries, including construction, and provides financial strategy, forecasting, cash flow management, financial analysis, and other CFO-level services.

A CFO can help your construction company:

  • Improve project-level financial visibility
  • Develop more reliable cash flow forecasts
  • Analyse project profitability
  • Improve pricing and margin analysis
  • Strengthen financial reporting
  • Identify operational inefficiencies
  • Develop budgets and forecasts
  • Evaluate financing options
  • Establish scalable financial processes

The right financial strategy can help you move from reacting to financial problems to proactively managing them.

Ready to Get Started?

Are financial challenges affecting your construction company's profitability or cash flow? Talk with the Preferred CFO team about your goals and challenges. A complimentary consultation can help you determine where additional financial expertise could make the biggest difference.

Schedule a free consultation with Preferred CFO today.