Tonight's budget rewrites the rules investors have lived by since 1999. Here's what to watch when the Treasurer stands up at 7.30pm.
Three load-bearing pillars have held up Australian investing for a generation, the 50 per cent CGT discount, negative gearing, and the flexibility of discretionary trusts. Tonight, all three are expected to move.
Jim Chalmers has called the package politically risky and the leaks of the past 72 hours show why. The AFR, ABC and Nine mastheads have all converged on the same picture, a return to the pre-1999 CGT indexation model, negative gearing wound back to new builds only, and a minimum tax rate on trust distributions.
If the rumours come to fruition, this is the biggest rewrite of the investor tax code since the Howard era. Below are the three changes that will hit hardest.
What’s rumoured so far
| Change | What’s proposed | Who’s affected | Likely start |
| CGT discount overhaul | Return to pre-1999 inflation indexation; 50% discount phased out | Anyone holding shares, property or business assets | Hybrid from budget night; full model 1 July 2027 |
| Negative gearing wound back | Already negatively geared properties grandfathered; new builds only after a 12-month transition | Anyone buying established stock to negatively gear from tonight onwards | From budget night; transition to 1 July 2027 |
| Trust distribution minimum tax | Reported 30% floor on discretionary trust distributions | ~900,000 trusts: family businesses, professionals, investors | Likely 1 July 2027 if confirmed tonight |
Change 1. The CGT discount: back to indexation
What’s on the table
Peter Costello’s 50 per cent CGT discount has stood untouched since 1999. In its place the Labor government is proposing the old indexation model, which taxes only the real, inflation-adjusted slice of a gain.
The AFR has reported a three-tranche transition:
- Assets bought before 30th June 2027. A hybrid model, with the 50 per cent discount applying to gains accrued under the current rules, and indexation applying to gains made after 30th June 2027.
- Assets bought from 1 July 2027. Full indexation, no discount.
Why it matters
The 50 per cent discount has been the single biggest structural edge in Australian investing. A long-held stock or property currently caps out at a 23.5 per cent effective tax rate. Under indexation, a low-inflation, high-growth asset gets taxed on the nominal gain less CPI, at marginal rates of up to 47 per cent.
Depending on the environment, indexation can beat the discount. Primarily, when inflation runs hot for long enough. For most modern holding periods, it won’t, due to central bank inflation targeting.
Risks and opportunities
- Risk. Concentrated portfolios with large gains face heavier tax drag on rebalancing. The buy-and-hold edge of Australian shares versus US-domiciled vehicles narrows sharply.
- Opportunity. The 12-month transition window is a planning gift. One play would be to buy now and lock in the discount until 1 July 2027, contingent on implementation period.
- Structural shift. Companies (30 per cent flat, no discount) and super (10 per cent effective on long-held gains) get relatively more attractive against individual ownership. Owner occupied homes, which are CGT exempt, become even more attractive.
- Sector read. Listed property, infrastructure and long-duration income plays held by individuals on yield face an after-tax re-rating.
Change 2. Negative gearing: new builds only
What’s on the table
Negative gearing survives, but only for newly built dwellings.
Per Reuters and the AFR, the structure looks like this:
- Properties already being negatively geared are grandfathered. If you currently claim net rental losses against other income, you continue to do so. Your existing position is protected.
- Established properties acquired between budget night and 1 July 2027 can still be negatively geared, but only until that date. After 1 July 2027, the deduction against other income is switched off.
- New builds can be negatively geared with no restriction, before or after 1 July 2027. The government wants investor capital flowing into new supply.
It is important to note that Grandfathering attaches to properties already being negatively geared, not to investors as a class. An investor holding a positively geared property today does not automatically get protection if they later acquire another established property and try to gear it. Watch the budget papers for the exact test.
Why it matters
Three legs hold up Australian residential property investing, rental yield, capital growth, and the ability to write net losses off against high-marginal-rate income. The third leg just got kicked out for any new purchase of established stock.
The maths is significant. For example, A 47 per marginal-rate investor running a $30,000 annual rental shortfall currently claws back $14,100 through tax. Without negative gearing, the same shortfall costs the full $30,000 pre-tax.
The grandfathering is critical. Existing negatively geared portfolios could possibly be untouched. The government wants to avoid a forced sell-off that crushes rental supply. The flip side, a two-tier market opens overnight. Pre-budget portfolios could become a scarce, tax-advantaged asset class.
Risks and opportunities
- Risk. Established-stock investment property stops working on an after-tax basis once the transition window closes. Yield has to do all the heavy lifting. Marginal investors exit.
- Opportunity. New builds keep the full benefit. Expect a re-rating of off-the-plan, house-and-land, build-to-rent and residential development trusts.
- Transition window. A 14-month buffer for established-property buyers to lock in negative gearing through to 1 July 2027. Same logic as the CGT window, same caveats.
- Reallocation. Commercial property, listed REITs and private credit sit outside the residential rules entirely. The case for those allocations strengthens.
Change 3. Trust distributions, a 30 per cent floor
What’s on the table
Reports in The Australian, since picked up by the ABC, point to a 30 per cent minimum tax rate on discretionary trust distributions. This one is the softest of the three leaks. Design details, thresholds, beneficiary tests and primary producer carve-outs are still up in the air.
Trust distributions currently flow to beneficiaries at their individual marginal rates. That is what makes income-streaming to lower-earning family members work. A 30 per cent floor kills the play for anyone below the 30 per cent marginal rate.
Why it matters
Around 900,000 discretionary trusts operate in Australia. They distributed roughly $71 billion in income in the most recent ATO data year. Trusts are the workhorses of family business, professional services and intergenerational wealth.
A 30 per cent floor would:
- Wipe out the benefit of distributing to non-working adult beneficiaries.
- Sharply reduce the benefit of streaming to part-working spouses and adult children.
- Preserve the structural benefits: asset protection, succession, franking credit pass-through.
Of the three leaked reforms, trust taxation has the weakest pre-budget signalling. It may show up tonight as a consultation paper rather than a hard measure, or with carve-outs for primary producers and small business.
Risks and opportunities
- Risk. A trust distributing $200,000 across four beneficiaries at an average 19 per cent effective rate gets a $22,000 annual tax bill increase. Compounds fast across a portfolio of trusts.
- Opportunity. Corporate beneficiaries (30 per cent flat) become broadly neutral under the new regime. Bucket company strategies, written off as outdated, look interesting again.
- Planning window. If announced with a 1 July 2027 start, the gap becomes critical for trust deed reviews, beneficiary class amendments and consideration of testamentary or fixed trust alternatives.
- Carve-out watch. Primary producers, small business CGT concessions and franking credit refunds will tell you how serious the measure really is.
Summary
The Treasurer will frame this as intergenerational fairness. Politically useful, commercially incomplete.
The reality is simpler, since 1999, the system has favoured holding leveraged investment assets in individual names with long-duration buy-and-hold. Tonight’s budget weakens all three of those preferences at once.
The response is not panic. It is three questions:
- Where are gains held? Embedded gains in individual names face accelerated tax drag. Super, trusts and companies are hit differently.
- Where is leverage held? Negatively geared residential property loses its shield once the transition closes for future purchases of established stock. Commercial and trust-held leverage is untouched. Review this sentence
- How are distributions made? Trust streaming may lose its lower-end benefit. Bucket companies return to relevance.
The transition windows, particularly the buffers to 1 July 2027 on both CGT and negative gearing, are the planning opportunity.
A note on what we don’t yet know
These are proposals based on pre-budget reporting in the hours before the speech. They are not finalised. Design details, transition rules, grandfathering tests and carve-outs only become clear when the Treasurer delivers the budget at 7.30pm AEST and the papers are released.
Legislation still must pass both houses. The Coalition is opposed, the Greens want more aggressive reform, and the trust measure may yet be deferred to consultation. The gap between budget announcement and enacted law can be large, and final settings may differ materially from what has been reported. Speak to your adviser before acting on anything above.
