QBCC Puts Fixed-Price Contract Exposure on Its Builder Viability Watch List as Queensland House Prices Rise 8% in a Year. Re-Check Every Open Quote Before You Sign.
The Queensland Building and Construction Commission's 20 October guidance names fixed-price contract exposure as a significant industry risk where costs keep climbing after signing. With ABS data showing Queensland house construction prices up 8.0% over the year and Cotality's index back to 1.0% quarterly growth, the desk job is pricing risk before the contract, not after.
The regulator has put fixed prices on its watch list
The Queensland Building and Construction Commission (QBCC) has told licensees that fixed-price contract exposure is now one of the industry's biggest risks. In guidance titled Fixed-price contracts: what QBCC licensees should know, published on 20 October 2026, the regulator says its intelligence "identifies fixed-price contract exposure and builder viability as significant industry risks, particularly where costs continue to increase after contracts have been signed".
The QBCC is not telling builders to stop quoting fixed prices. It calls them "a common feature of residential construction". The problem it names is the gap that opens when labour, materials, freight, insurance and subcontractor costs keep moving after the price is locked in. In that case, it says, builders "may have limited options to recover additional costs out of their control", which can shrink margins and put pressure on cash flow.
The guidance puts the stakes in context: the QBCC says Queensland's building and construction industry contributes around $69 billion to the state economy and employs about 280,000 people, and around 38% of QBCC licensees are aged over 55, with only 6% under 30.
Why the timing matters: costs are moving again
The cost data shows why a price agreed last year may not cover this year's build.
| Indicator | Latest figure | Source | | --- | --- | --- | | House construction prices, Queensland | Up 3.1% in the June quarter 2026 and 8.0% over the year | ABS PPI | | House construction prices, national | Up 2.0% in the quarter, the largest rise since September 2022, and 5.9% over the year | ABS PPI | | Input prices to house construction, Brisbane | Up 2.3% in the quarter and 4.4% over the year, led by plaster products (+7.7%) | ABS PPI | | Road freight transport prices | Up 15.5% in the quarter, the largest rise since the series began in 1997 | ABS PPI | | Residential construction costs, national | Up 1.0% in the September quarter 2026 and 3.2% over the year, up from 2.8% | Cotality CCCI | | Residential construction costs, Queensland | Up 1.0% in the September quarter | Cotality CCCI |
ABS figures are from Producer Price Indexes, Australia, June 2026 (released 31 July 2026). The ABS linked much of the quarter's rise to fuel and freight costs after the closure of the Strait of Hormuz, and said shortages of bricklayers, carpenters and concreters remain an ongoing challenge. The September quarter PPI is due on 30 October 2026.
Cotality figures are from its Cordell Construction Cost Index release of 21 October 2026. Cotality's John Bennett said costs linked to the Middle East conflict "may also now be flowing through" to material prices and are "expected to place continued pressure on the already tight builders' margins".
What the QBCC wants you to weigh before you sign
The guidance lists what contractors should consider before agreeing a fixed price:
- the duration of the build
- current market conditions
- subcontractor availability
- material lead times
- site-specific risks
- the contract's provisions for delays and variations
It adds that longer jobs are generally more exposed than short ones, and that "building in realistic contingencies" before pricing can reduce exposure later.
The warning signs it is watching
The QBCC lists early warning signs of financial pressure: ongoing project delays, increasing variation disputes, shrinking profit margins, subcontractor payment pressure and difficulty securing future work. It also says clear records protect both sides: detailed scopes of work, documented assumptions, written variation requests and records of client approvals.
Don't expect to recover cost rises after the fact. In a public warning, the QBCC has told home owners there may be no contractual basis for contractors to demand payment for higher labour and material costs as "variations" under a fixed-price contract, and that doing so could be a breach of contract.
What it means on the desk
- Re-price your open quotes. Any fixed-price quote prepared before the June quarter cost jump should be checked against current supplier and trade prices before it's signed.
- Know your exposure on signed jobs. List every fixed-price contract not yet at lock-up, note when it was priced, and flag the ones with the longest runway. That is where the margin risk sits.
- Write down your assumptions. Record what the price assumes on lead times, site conditions and allowances, and make sure the client sees it at signing.
- Run variations by the book. Put every variation in writing and get the owner's written approval before the work starts.
- Watch cash flow monthly. Review job budgets and outstanding payments regularly. The QBCC's own warning-sign list is a useful monthly check.
- Get advice on your contract terms. If your standard contract has no clear way to deal with cost movements, speak to your industry association or a construction lawyer before the next job is priced.
This article reports on regulator guidance and industry data. It is not legal or financial advice.
Sources: QBCC, Fixed-price contracts: what QBCC licensees should know (20 October 2026); ABS, Producer Price Indexes, Australia, June 2026 (31 July 2026); Cotality, Renewed momentum signals a settling construction sector (21 October 2026); QBCC, Warning about making payments outside of building contract terms.
