A construction business can be profitable on paper and still find itself constantly under cash pressure. For owners and managers, this can be difficult to reconcile. The monthly accounts show a profit. The order book is strong. Projects appear to be performing reasonably well. Yet cash remains tight and the business seems to require more working capital every time it grows. The reason is relatively simple: Profit and cash are not the same thing. In construction and other project-based businesses, the gap between the two can become significant. Understanding that gap is critical, particularly as a contractor grows.

Growth can consume cash One of the counterintuitive features of construction is that winning more work can actually increase financial pressure. A new project may require the contractor to fund mobilisation, labour, materials, subcontractors, plant and overheads before receiving meaningful cash from the client. As the business grows, more projects are being funded simultaneously. Consider a contractor growing from $20 million to $30 million of annual revenue. That additional $10 million of work may be profitable. But if the business effectively has to fund even four weeks of additional activity before recovering the cash from customers, the additional working-capital requirement can be substantial. And growth rarely occurs neatly. A business may win several projects at once, mobilise additional employees, purchase equipment and increase overheads well before the cash associated with that growth arrives. The result can seem contradictory: The business is growing. Profit is increasing. The order book looks excellent. And cash is getting tighter. That isn't necessarily evidence of a bad business. But it is something management needs to understand and plan for.

Revenue does not mean cash has been collected Construction financial reporting introduces another complication. Revenue and profit may be recognised based on the progress of a project rather than when the customer actually pays. That means the profit and loss statement can show healthy project earnings while the corresponding cash remains tied up in:

  • work in progress
  • accounts receivable
  • retentions
  • variations
  • claims
  • contract assets.

The quality of those balances matters. $1 million sitting in cash is clearly worth $1 million. $1 million sitting in unbilled WIP, aged debtors or unapproved variations is a different proposition entirely. The accounting may ultimately prove correct, but the business cannot use an accounting profit to pay next week's wages.

Variations can create a dangerous gap Variations deserve particular attention. Construction businesses frequently undertake work before the commercial position has been completely resolved. Operationally, that can be unavoidable. Financially, it creates risk. Costs are incurred immediately. Labour and subcontractors need to be paid. Materials may already have been purchased. But the associated revenue might not be agreed, certified or paid for months. If management assumes that every variation will ultimately be recovered at its expected value, reported project margins can look healthier than the underlying commercial position. As the balance of unresolved variations grows, so does the amount of cash effectively being funded by the contractor. The important question isn't simply: "How much variation revenue have we recognised?" It is:

"How much cash have we spent against variations that we haven't yet converted into an agreed entitlement and ultimately into cash?" Those are very different questions.

Retentions quietly absorb working capital Retentions create another structural difference between profit and cash. A project can be profitable and substantially complete while part of the cash remains unavailable to the contractor. Individually, retention balances may not appear particularly significant. Across a growing portfolio of projects, however, they accumulate. A business completing more work each year can therefore find increasing amounts of its historical profit effectively locked inside the balance sheet. Management should understand not only the total retention balance, but when it is expected to convert to cash and whether overdue retentions are actively being recovered.

Debtor days matter more as the business grows A few additional days between invoicing and collection can seem insignificant. At scale, they aren't. A contractor billing $2 million per month that experiences a ten-day deterioration in collections can have hundreds of thousands of dollars of additional cash tied up in receivables. The underlying projects may remain profitable. Nothing necessarily appears wrong in the profit and loss statement. But the cash requirement of the business has increased. This is why debtor management should not simply be viewed as an accounts-receivable function. For a growing contractor, it is a working-capital issue that deserves management attention.

Project forecasts can hide future cash problems Reliable project forecasting is one of the most important financial controls in a contracting business. A good forecast should provide management with an honest view of:

  • costs incurred to date
  • cost to complete
  • expected final margin
  • variations and claims
  • commercial risks
  • expected billing
  • expected cash collection.

Problems emerge when forecasts become overly optimistic. A project experiencing margin pressure may assume future efficiencies will recover current losses. Variations may be treated as recoverable before agreement. Commercial disputes may remain unresolved for too long. Forecasts can therefore continue showing an acceptable final margin even while cash is deteriorating. This is why forecasting should not simply be an accounting exercise. It is a management discipline. The earlier bad news appears in the forecast, the more options management has to respond.

The balance sheet often tells the story before the P&L Management teams naturally focus on revenue and EBITDA. But in a growing construction business, some of the most important warning signs often appear elsewhere. I would pay particular attention to:

  • WIP growing faster than revenue
  • increasing unapproved variation balances
  • debtor days deteriorating
  • overdue retentions increasing
  • project margins repeatedly being revised late
  • operating cash flow consistently lagging reported profit
  • increasing reliance on overdrafts or working-capital facilities
  • suppliers being paid progressively later
  • cash forecasts regularly missing actual outcomes.

None of these measures should be considered in isolation. Together, however, they can indicate that the business is funding significantly more activity than management realises.

Cash pressure is often a symptom, not the underlying problem When cash becomes tight, the instinctive response is often to focus on the bank balance. Increase the overdraft. Accelerate collections. Delay some payments. Those actions may provide short-term relief, but they don't necessarily address the cause. The real issue could be poor project performance.

It could be slow billing. It could be unresolved variations. It could be weak commercial discipline. It could be inaccurate forecasting. Or it could simply be that the business is growing faster than its existing working-capital base can support. The job of management is to understand which of those things is actually happening.

What should management be looking at? A growing contractor should be able to connect four things: Project performance then Profit then Working capital then Cash Management reporting that treats those separately can miss important warning signs. At a minimum, leadership should have visibility over project forecast margins, WIP, variations, debtors, retentions, short-term cash flow and the working-capital requirement associated with the forward order book. And that information needs to be forward-looking. Knowing why cash was tight last month is useful. Knowing why cash could become tight three months from now gives management an opportunity to do something about it.

Profitability still matters. But cash determines resilience. A profitable construction business can absolutely run into financial difficulty. Not because profit doesn't matter, but because the timing and quality of that profit matters enormously. As contractors grow, the financial discipline that worked at $10 million or $20 million of revenue may no longer provide enough visibility at $30 million, $50 million or beyond. That doesn't necessarily mean the business needs a large finance team. It does mean management needs increasingly sophisticated visibility over project performance, working capital and cash. The objective isn't more reporting for the sake of reporting. It is being able to answer a much more useful question: If the business continues to grow, how much cash will that growth require, where will that cash come from, and what could prevent us from collecting it? Businesses that can answer that question are in a much stronger position to grow sustainably.

Salt Strategic Advisory works with growing construction, infrastructure and project-based businesses to strengthen financial visibility, project forecasting, cash flow and commercial decision-making. If your business is profitable and growing but cash continues to feel tighter than it should, the starting point is understanding where the cash is actually being absorbed.