Guide · Building through a downturn
Downturns don’t kill builders.
Cashflow does.
The industry forecasts have turned, insolvencies are at record levels, and the cost base keeps climbing. None of that decides which builders come through. Businesses rarely fail because the work dried up; they fail because cash stopped moving while obligations kept coming. This guide is about the operating disciplines that separate the builders who ride a contraction out from the ones who become a statistic in it. General information, not financial advice.
Written by Brad Caldon, Founder, VIABUILD. Licensed builder (NSW) · Registered Building Practitioner (Class 1 to 9) · B.Construction Management (Hons)
01 / The basics
In plain English
First, the shape of the market, with the numbers attributed so you can check them. The Australian Construction Industry Forum’s May 2026 forecasts project a 0.8 per cent contraction in total construction work done across 2026, reversing its late-2025 expectation of growth, on a base of roughly $334 billion of annual work. ASIC-reported insolvencies tell the sharper story: a record 3,596 construction companies entered external administration for the first time in FY 2024-25, up 21 per cent on the prior year, with construction topping the industry count. Meanwhile the cost base is up about 35 per cent since 2019, with further rises forecast for 2026 across fuel, materials, wages, insurance and finance. Forecasts get revised, so treat these as the picture at the time of writing, not gospel.
Now the part that matters: the mechanism. A building business does not fail the day demand softens. It fails months later, through a sequence that is depressingly consistent:
- Jobs priced in a rising-cost market run over their estimates, and the overruns surface at close-out instead of early enough to act on.
- Variations get built before they are documented and priced, so the money is spent but the entitlement to claim it is weak.
- Claims drift: invoiced late, chased politely, paid slowly. The builder quietly becomes the financier of the project.
- To cover overheads, the business takes more work at thinner margins, which raises the cash demand precisely when cash is shortest.
Each step is survivable on its own. Together they compound, and in a soft market there is no incoming wave of new deposits to paper over the gap. That is why insolvency counts climb after conditions turn, and why the failure list includes busy builders with full order books. Losing money slowly on plenty of work is still losing money.
Volume is not the answer, discipline is
The builders who came through the post-COVID cost shock best were, in our observation, not the ones with the most work. They were the ones who managed capacity carefully, documented their processes, and protected their margins: firm payment terms, variations priced and signed before the work was done, and cost-to-complete estimates kept current enough to steer by. A contraction punishes loose administration far harder than it punishes a modest pipeline. There is also a compounding reason to protect margin in a down year: profit builds equity, and equity is what sets your Open Job Value, the limit on how much you can build when the market turns back up. One leading indicator worth knowing: building approvals were up 18.9 per cent nationally in the same forecasts, pointing to a possible recovery from 2027-28. The builders who reach it in good shape will be the disciplined ones, and approvals only help the businesses still standing when they convert.
02 / The reality
Where builders get stuck
Chasing turnover to feed overheads
Taking thin-margin work to keep the team busy raises your cash requirement while lowering the margin that services it. In a soft market this is the most common way a full order book and a failing business coexist.
Variations built before they’re signed
Under time pressure the work gets done and the paperwork is promised for later. Later, the client disputes it. The cost is real and immediate; the revenue is now a negotiation.
Cost overruns found at close-out
If actuals only get reconciled at the end of the job, every estimating miss and supplier increase lands at once, months too late to reprice, resequence or claim.
WIP guessed, not measured
Over-billing read as profit, or under-billing invisible, means the business is steering off a false position. In a downturn, decisions made off flattering numbers are the expensive ones.
Payment terms that quietly stretch
Claims go out late, and get paid later, and nobody escalates because the client relationship feels fragile. Each week of drift is the builder lending the client money, interest-free, in a tight market.
Repricing off last year’s costs
With the cost base up roughly 35 per cent since 2019 and still moving, quoting from stale rates locks in a loss before the slab is poured. Old estimating data is a liability in a rising-cost market.
03 / The fix
A workflow that holds up
- 01
Reprice from current costs, every time
Refresh supplier and trade pricing before each quote rather than indexing last year’s rates. In a moving cost base, the quote you win on stale prices is the job that loses money.
- 02
Price and sign variations before the work
Make the rule mechanical: no variation is built until it is documented, priced and approved. It protects the margin and, just as importantly, keeps the client relationship honest about what changes cost.
- 03
Keep cost-to-complete current
Track committed and actual costs against budget as invoices arrive, so every job has a live cost-to-complete. Overruns you see at 2 per cent are decisions; overruns you find at close-out are history.
- 04
Run WIP monthly
Measure over- and under-billing across every open job each month so reported profit is real. An honest WIP position is what lets you trust the rest of your numbers.
- 05
Claim on time, follow up on schedule
Issue progress claims the day the stage completes, and escalate late payment on a fixed timetable rather than by feel. Getting paid is part of the build programme, not an administrative afterthought.
- 06
Manage capacity to margin, not turnover
Decide the volume of work the balance sheet and the team can carry profitably, and hold to it. Saying no to a thin job is buying the capacity to say yes to a sound one.
04 / The tooling
How software helps
Every discipline above is simple to describe and hard to sustain, because each one is an administrative habit competing with the phone, the site and the day. That is the honest role of software here: not insight, persistence. A system that captures costs as invoices arrive, holds variations in a documented approval flow, and keeps claims tied to stages makes the disciplined path the default path, so it still happens in the weeks when nobody has spare attention.
The mechanics are the same ones covered across our guides: a purchase order workflow that locks commitments before they become surprises, cost tracking that shows budget versus committed versus actual while there is still time to act, WIP reporting that keeps profit honest, and progress claims that go out on time with a dated trail. None of it makes a bad market good. It makes your position in that market visible early enough to do something about it.
05 / In practice
Where VIABUILD fits
VIABUILD makes the disciplined path the default path.
VIABUILD is built around exactly these habits. AI accounts payable captures and job-codes supplier invoices as they arrive, so actual costs land against the job the week they happen. Cost tracking shows budget versus committed versus actual live, with variance visible early rather than at close-out. Progress claims and variations are stage-based and documented, with client approval in the portal, and everything pushes to Xero without rekeying, which is what keeps the books current enough to run a real WIP.
What software cannot do is set your prices, choose your jobs or fix a margin that was never there. Those calls stay with you and your accountant. VIABUILD’s job is to make sure you are making them off numbers that are current and true.
- Invoices captured and job-coded on arrival
- Budget vs committed vs actual, live per job
- Variations documented and approved in the portal
- Stage-based claims with a dated trail
- Books kept current through the Xero integration
- Not financial advice; the pricing calls stay yours
06 / FAQ
Common questions.
The Australian Construction Industry Forum’s May 2026 forecasts project a 0.8 per cent contraction in total construction work done across 2026, reversing its November 2025 forecast of growth, after the industry grew 3.6 per cent through 2025. Residential work is regarded as the most exposed segment. Forecasts are revised each cycle, so check the current ACIF release before relying on the figures.
Construction businesses carry fixed-price obligations, pay for labour and materials ahead of being paid themselves, and run on thin margins, so they are unusually exposed to timing gaps between cash out and cash in. When volumes soften, new deposits stop masking those gaps. A record 3,596 construction companies entered external administration for the first time in FY 2024-25, up 21 per cent on the prior year, and industry commentary suggests the pressure had not yet peaked.
That is a judgement call for each business, but it helps to price the full consequence: thin-margin work raises your cash requirement, consumes supervision capacity, and adds risk without adding buffer, and in a downturn the buffer is the point. Many builders find that managing capacity to a margin floor, rather than to turnover, is what keeps the business decision-grade. Your accountant can help model where that floor sits.
Cost-to-complete is the live estimate of what it will still cost to finish a job, built from the budget, costs committed so far and actuals to date. In a rising-cost market it matters more because estimating misses and supplier increases accumulate faster; a current cost-to-complete surfaces them while you can still reprice variations, resequence work or manage the client conversation, instead of discovering them at close-out.
Approvals are a leading indicator, and the same ACIF forecasts note approvals up 18.9 per cent nationally, pointing to a possible recovery from 2027-28. But an approval is not a start, and a start is not cashflow; the gap between approval and completed work can be long. Approvals mainly signal that builders who reach the recovery in sound financial shape may have work waiting for them on the other side.
About the author
Brad Caldon
Founder, VIABUILD
Brad Caldon is the founder of VIABUILD and a builder and property developer with nearly two decades across residential construction and development. He holds a NSW Home Builder Licence, is a Registered Building Practitioner across Class 1 to Class 9 buildings, and holds a Bachelor of Construction Management (Building) (Honours) from the University of Newcastle.
More about VIABUILD →07 / Keep reading
Related guides & features
See it on your own jobs.
Start with 7 days free: the full platform, your real data. $199 for your first month, then $435/mo. Month-to-month, no lock-in.
