Construction runs the worst cashflow model in Australian business: costs land daily, revenue arrives via progress claims on 30-day-plus terms, retentions lock up 5 to 10 per cent of contract value for a year or more, and margins sit thin enough that one mispriced job erases a quarter. Construction consistently ranks among the industries with the highest insolvency counts in Australia, and the failures are overwhelmingly cashflow failures, not demand failures. This is exactly the problem set a fractional CFO exists to manage, at $2,500 to $8,000 a month instead of a $300,000-plus executive hire.
Published: July 2026
Four structural features make builders' numbers harder than most industries':
Weekly cashflow forecasting by project. A 13-week rolling forecast built from the claim schedule, retention release dates, subcontractor payment terms, and payroll. This is the single highest-value artefact; run a first pass with our cash flow forecast calculator.
A WIP schedule the bank believes. Monthly cost-to-complete reviews per job, with under/over-claim positions quantified. This is also what lenders and sureties ask for first.
Margin discipline at quoting. True labour cost per productive hour (loaded for the 12 per cent super guarantee, leave, downtime, and site on-costs; check yours with the employee cost calculator), plus overhead recovery rates that reflect this year's overheads, not 2023's. Builders can pressure-test individual jobs with our project profitability calculator for builders.
Retention and claims control. A retention register with release triggers, and a claims calendar nobody is allowed to miss.
Compliance load. Payroll tax across states, long service leave levies, taxable payments annual reporting for subcontractors, and from 1 July 2026, Payday Super timing on a workforce that is often weekly-paid, which multiplies super payment events (our Payday Super guide explains the seven-business-day rule).
Growth and bonding capacity. Sureties and banks size facilities off the quality of your reporting. Clean monthly management accounts and a credible WIP directly expand how much work you can take on.
A $12M-revenue commercial fit-out contractor, 35 staff, three concurrent major projects. Before CFO oversight: profit reported at year-end only, one project quietly $180,000 over budget discovered at completion, retentions receivable untracked at roughly $420,000, and two months where payroll cleared on the overdraft.
With a fractional CFO at $5,000 a month ($60,000 a year): monthly WIP reviews caught the over-budget project at 40 per cent complete, allowing variation claims of $110,000 that would otherwise have lapsed; a retention register recovered $85,000 of releases that had simply never been invoiced; and the 13-week forecast moved claim submission dates to eliminate the overdraft months. Direct, countable recovery in year one: roughly $195,000 against $60,000 of cost, before valuing better pricing on new work. That ratio is typical of first-year construction engagements because the leakage is usually already there, unmeasured.
Signals it is time: revenue past roughly $3M-$5M; more than two concurrent projects; any use of the overdraft to make payroll; a bank or surety asking for reporting you cannot produce; or quoting from gut feel because job costing lags reality. If the more basic problem is that the books themselves are behind, start with bookkeeping for trades and construction, and the prestige builder case study shows what surfacing hidden debtor cash looks like in practice and add the CFO layer once the data is current, or engage a provider that does both (see when to use a fractional CFO in Australia).
Construction engagements price at the middle-upper end of the fractional range because of WIP and multi-project complexity: typically $3,000 to $8,000 per month. Compare with a full-time construction CFO at $250,000-$350,000 all-in. Full market pricing is in the fractional CFO costs guide, and the fractional CFO ROI calculator will size the payback for your revenue.
What does a fractional CFO cost for a construction company?
Typically $3,000 to $8,000 per month in Australia, scaling with project count and reporting requirements rather than headcount. A full-time equivalent runs $250,000-$350,000 all-in.
What is WIP accounting and why does it matter?
Work in progress accounting recognises revenue as jobs progress rather than when invoiced. Done badly, it makes profitable builders look broke and struggling builders look profitable, right up until completion.
Can a fractional CFO help with bank facilities and bonding?
Yes. Lenders and sureties assess reporting quality, WIP credibility, and forecast discipline. Improving those directly increases facility and bonding capacity.
How does Payday Super affect construction payroll?
From 1 July 2026, super must reach employees' funds within seven business days of each payday. Weekly-paid site workforces now generate 52 super events a year instead of four, which raises the cost of manual processes and the penalty exposure for late runs.
Do I need a CFO if I already have a bookkeeper?
They solve different problems. The bookkeeper keeps the record accurate; the CFO uses it to control claims, retentions, margins, and cash. Under about $3M revenue, a strong bookkeeper is usually sufficient.
How quickly should results show?
The 13-week forecast and retention register typically surface recoverable cash within the first 60 days. Margin improvements on new quoting show over two to three job cycles.
Scale Suite is a Sydney-based provider of outsourced finance teams and fractional CFO services for Australian SMEs. We deliver weekly bookkeeping, payroll, BAS/IAS lodgement, cashflow reporting, management accounts, and strategic fractional CFO oversight, all as a fully embedded team that works inside your business.
CA-qualified, Xero Certified, and registered BAS Agents, we replace fragmented bookkeepers and once-a-year accountants with one responsive finance function at a fraction of the cost of full-time hires. We serve growing businesses across Sydney, Melbourne, Brisbane, and Perth, with packages starting from $1,500 per month and no lock-in contracts.
We review and check this guide periodically. At the time of writing (July 2026), all information was current. Scale Suite is a registered BAS Agent, not a licensed tax advisor or financial advisor. This content is general information only and does not constitute professional tax, financial, or legal advice. Some details may change over time. The worked example is a hypothetical scenario with realistic details, not a named client.
Sources:
Scale Suite is a Sydney-based provider of outsourced finance and HR services for Australian SMEs. We deliver bookkeeping, financial reporting, payroll processing, fractional CFO support, recruitment, employee onboarding, people and culture support, and fractional HR oversight, all as a fully embedded team that works inside your business.
Employment Hero Gold Partner, CA-qualified, and Xero Certified, we replace fragmented finance and HR processes with one responsive, senior-level function at a fraction of the cost of full-time hires. We serve growing businesses across Sydney, Melbourne, Brisbane, and Perth, with packages starting from $1,500 per month and no lock-in contracts.
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