Five money leaks that kill profit on construction jobs
- Markus Shobe

- Nov 29, 2025
- 2 min read
Running a construction business is hard work. You manage crews, vendors, schedules, and clients. With so much happening on every job site, it is easy to miss the hidden money leaks that destroy profit. Strong construction accounting helps you catch these leaks before they get out of control. When you tighten up these areas, your jobs become more profitable without taking on more work.
Missing labor hours
Labor is the largest cost in most construction projects. When crews forget to record hours or when time sheets are rounded, your job costing becomes wrong. Even a few missing hours each week can ruin your profit. Accurate labor tracking is one of the most important parts of construction accounting. Daily check ins work better than waiting until the end of the week.
Material waste and overbilling
Materials disappear fast on a job. Some are wasted. Some get damaged. Some suppliers overbill. Without strong bookkeeping, your material costs rise and you never see it until the project is over. Track what you bought and what you used on each job. Good construction accounting systems make this simple and keep your budget on track.
Unbilled change orders
Change orders are one of the biggest profit leaks in construction. Clients make last minute requests. Crews do extra work to keep the job moving. When changes are not documented, they do not get billed. You end up paying for the work out of your own pocket. Write down every change the same day it happens. This keeps your project profitable and protects your time.
Subcontractor cost surprises
Subcontractors send invoices that do not match the original quote all the time. If you do not catch the issue early, your profit disappears. Compare every sub invoice to the contract right away. Good construction accounting practices help you control your subcontractor costs and keep your jobs on budget.
Weak job costing
Job costing is the foundation of construction accounting. Without accurate job costing, you cannot see labor, materials, subs, or overhead clearly. Many contractors look at the bank account to see if they made money. That never works. Strong job costing shows you if a project is winning or losing while the work is still happening. It protects your cash flow and helps you make better decisions.
These money leaks show up in almost every construction business. The good news is that strong construction accounting will fix them. With better tracking, cleaner books, and consistent job reporting, your profit becomes more predictable and far easier to grow.
If you want support setting up a clean construction accounting system and accurate job costing, Revamp Your Finances LLC can help. Email markus@revampfinances.com to get started.



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