Most owners meet CPA for construction companies the same way: a year too late. The decisions below reward whoever shows up early — with current books, a realistic forecast, and time to act before deadlines make the choice for you.
CPA Services for Construction Companies: Accounting, Tax and Cash Flow
Construction profit is won and lost job by job
Company-wide revenue can look healthy while individual projects underperform. Job-cost accounting helps management see labor, materials, subcontractors, equipment, and overhead against budget.
Work-in-progress reporting matters
Long projects can distort results if billing and earned revenue are not understood. WIP schedules, backlog, change orders, and estimated costs to complete are critical management tools.
Cash flow can diverge from profit
Retainage, payment timing, mobilization costs, payroll, materials, and subcontractor payments can create cash strain. Forecast by project and at the corporate level.
Equipment decisions require discipline
Ownership versus rental, financing, utilization, maintenance, resale value, and tax treatment should be considered together.
Payroll and subcontractor processes deserve controls
Construction businesses can have complex labor classifications and a large vendor base. Strong onboarding, documentation, approval, and reporting processes reduce errors.
Insurance and bonding affect capacity
Financial statements, working capital, claims history, and controls can influence insurance and surety relationships. Accounting quality therefore has an operating impact.
Use tax planning throughout the year
Entity structure, compensation, equipment purchases, retirement plans, and changing backlog can all affect tax forecasts.
Before you act: model the expected benefit, the implementation deadline, the documentation required, and the effect on cash. Tax rules are fact-specific and change — confirm every strategy for the current year with your advisor.
Further reading
The WIP schedule is the document that runs your company
A work-in-process schedule lists every open job with its contract value, costs to date, estimated cost to complete, billings to date, and the resulting over- or under-billing. Read correctly it answers three questions no other report does: which jobs are actually profitable, whether you are financing your customers or they are financing you, and how much revenue is already secured.
Sureties and lenders read it before they read your income statement, because over-billings inflate current earnings and under-billings hide them. A contractor with $400,000 of under-billings is quietly carrying a receivable that has not been invoiced — and an income statement that understates the year.
The hard part is not the arithmetic; it is honest cost-to-complete estimates from the field. We build the schedule monthly with your project managers, which is also how profit fade gets caught in month three instead of at close-out.
Accounting method: the election that moves income between years
Contractors under the gross-receipts threshold may use the cash or completed-contract method, deferring income on jobs still in progress at year-end. Above it, percentage-of-completion is generally required for long-term contracts, with an exception for home construction.
The choice is worth real money and it interacts with everything else — equipment purchases, bonus depreciation, retirement plan contributions, and the pass-through entity elections available in California, Oregon, and Georgia. We model the combination rather than optimizing one lever at a time. See tax planning for how that engagement runs.
Where contractor money actually leaks
Unbilled change orders. Work performed, approved verbally, never invoiced. This is the single most common recoverable loss we find, and it is usually still collectible if caught inside a quarter.
Equipment charged to the wrong job — or to no job. Without equipment cost allocation, owned iron looks free and job margins lie.
Retainage nobody chases. Five or ten percent of every completed job, sitting with the general contractor because no one owns the follow-up list.
Labor burden understated in bids. Payroll taxes, workers’ comp by classification, and benefits can add 25–40% to a wage rate. Bidding at the wage rate guarantees a fade.
Questions contractors ask
How often should a contractor close the books?
Monthly, by mid-month, with a WIP schedule attached. Quarterly closing is too slow to catch profit fade while a job is still running — which is the entire point of doing it.
Will better books really increase our bonding capacity?
Frequently, yes. Sureties underwrite working capital, equity, and the credibility of your WIP reporting. Reviewed statements and a schedule that ties often move capacity more than a good year does.
Do you handle certified payroll for public work?
Yes — prevailing wage determinations, certified payroll reports, fringe calculations, and the multi-state variations that come with public projects.