What the 2026-27 Federal Budget Means for D&C Builders
Handed down 12 May 2026, the 2026-27 Budget is a mixed bag for design & construct: a permanent $20,000 instant asset write-off and a new $2bn Local Infrastructure Fund, set against negative gearing and CGT changes Treasury's own papers say will cut new housing supply by ~35,000 homes.
Treasurer Jim Chalmers handed down the 2026-27 Federal Budget on Tuesday 12 May 2026. A month on, the detail has settled enough to say what it actually does for design & construct (D&C) builders - and it pulls in two directions at once.
More money is flowing into the things that enable housing and infrastructure, and there's a genuine win on equipment deductions. But sitting alongside that is a set of housing tax changes the Government's own Budget papers concede will reduce new supply. Almost all of it is announced, not yet legislated - so treat dates and thresholds as the Government's intent, not settled law.
The wins: a bigger enabling pipeline
The centrepiece for residential builders is a new $2 billion Local Infrastructure Fund, spread over four years from 2026-27 (with $500 million ring-fenced for regional Australia). It pays for the "last-mile" enabling work - water, power, sewerage, local roads - that has been holding up greenfield estates. The Budget says it lifts total housing-enabling infrastructure investment to $6.3 billion and will support up to 65,000 homes over the decade.
Read the qualifiers, though. The $2bn is the genuinely new money; the $6.3bn is a cumulative total that folds in earlier commitments. "Up to 65,000" is a hedged, decade-long figure, and the funding is conditional on states and territories delivering their side - faster approvals and a simpler National Construction Code. The dollars feed your tender pipeline, but the timing depends on reforms outside Canberra's direct control.
On civil and commercial work, the Budget commits $10.3 billion for transport infrastructure projects plus $500 million for active transport, and flags over $8.6 billion for nationally significant road and rail (Suburban Rail Loop East, ARTC freight rail, the Bruce Highway, and others). That $8.6bn is a "new and ongoing" figure spread across roughly eleven years from 2025-26 - real pipeline, but not a single-year injection.
The cash-flow win: a permanent $20,000 write-off
The $20,000 instant asset write-off is being made permanent from 1 July 2026 for businesses with aggregated turnover under $10 million. After a decade of year-by-year extensions - and with the threshold otherwise due to snap back to $1,000 on 30 June 2026 - this is the one measure that lands directly on a smaller builder's bottom line. Trade tools, plant and equipment under $20k can be written off in full in the year you buy them, which helps cash flow and end-of-year planning. Caveat: it's announced, not yet through Parliament.
The catch: housing tax changes that cut supply
From 1 July 2027, the Budget limits negative gearing to new builds and replaces the 50% capital gains tax discount with indexation plus a 30% minimum tax rate (on gains accruing after that date; investments held before 12 May 2026 are grandfathered).
The part builders should sit up for: the Government's own Budget papers estimate these changes will reduce the supply of new housing by around 35,000 homes over the next decade. That's Treasury's number, not an industry talking point. It's a gross figure the Government argues is more than offset by other measures - but CommBank's read is that the changes shave roughly 0.6 percentage points off annual dwelling price growth by the end of 2026, which dampens the investor-led apartment and build-to-sell feasibilities that a lot of D&C work depends on.
Labour: apprentice incentives cut - and big builders lose eligibility
This is the measure most at odds with the housing task. Employer apprentice incentive payments are cut from $5,000 to $4,000 and restricted to SMEs and Group Training Organisations. The HIA's reading is blunt: large residential builders will no longer be eligible for direct apprentice incentives at all. Ai Group puts the change at 1 January 2027 (with sign-ups before 31 December 2026 grandfathered) and around $266 million in savings over four years. Cutting apprentice support while the sector is short of trades is the kind of decision the peak bodies flagged immediately.
Faster approvals: $500m for EPBC reform
On the compliance side, the Budget puts more than $500 million into reforming Australia's environmental laws under the EPBC framework, including $105 million specifically for housing-related reform - notably AI-enabled digital tools meant to improve the speed, quality and consistency of environmental assessments and approvals. If it works, it shortens the front-end lead time that quietly carries a lot of holding cost on larger projects.
The backdrop: the Accord is running a year late
None of this changes the headline problem. The National Housing Accord target of 1.2 million new homes over five years from mid-2024 is off track. Master Builders Australia, on Budget night, put the shortfall at over 200,000 homes (its chief economist cites ~204,000), with the target now projected to be reached around June 2030 - about a year late. For context, roughly 219,000 homes were completed in the first 15 months against a run-rate closer to 280,000 a year.
The social and affordable pipeline tells the same conversion story. The $10 billion Housing Australia Future Fund (established November 2023) had, as of November 2025, committed to 279 contracts supporting 18,650 homes - but only 889 completed, with 9,501 under construction. Commitments are not completions, and that gap is where a lot of builder risk lives.
What it actually means for your business
- The pipeline is real but back-ended and conditional. The enabling-infrastructure and transport money is welcome, but much of it is multi-year and contingent on state reform. Don't price a 2027 feasibility on a 2026 announcement.
- Take the write-off. If you're under $10m turnover, the permanent $20k threshold is the simplest, most certain win in this Budget - plan capital purchases around it once it's legislated.
- Investor-led residential just got riskier. With Treasury itself forecasting a supply reduction from the negative gearing and CGT changes, build-to-sell and investor-stock feasibilities carry more demand-side risk from FY28.
- Plan your trades around less support, not more. If you're a large residential builder, model apprentice costs assuming you're outside the incentive scheme.
It's also worth naming what isn't here. Despite the noise, the Budget was light on direct measures for builder insolvency, security of payment, margins, company tax or R&D - the cash-flow and solvency pressures that have driven recent construction failures went largely unaddressed.
Before you bank on any of it
The instant asset write-off, the negative gearing and CGT changes, and the apprentice cuts were all announced but not yet legislated at Budget time. Final thresholds, effective dates and grandfathering terms can move as the measures pass through Parliament. Build them into your planning as direction of travel, and confirm the detail with your accountant before you commit capital.
Sources: Budget 2026-27 - Cost of Living and Tax Reform (budget.gov.au); Department of Infrastructure - 2026-27 Budget released; HIA, Federal Budget 2026-27: positive supply reforms offset by housing taxation changes and statement from Jocelyn Martin; Master Builders Australia, new funding for housing infrastructure welcome but Budget must go further; Ai Group, Federal Budget 2026-27; CommBank, 2026 Budget: updated housing outlook; AHURI, Federal measures to tackle Australia's housing challenges.
This article is general information for construction businesses, not financial or tax advice. Confirm any Budget measure against the final legislation and your own advisers before acting.