Most budgets are forgotten within a fortnight. The 2026-27 Federal Budget will not be one of them.

Treasurer Jim Chalmers handed down his fifth budget on Tuesday night, and beneath the headline tax offsets and the usual cost of living packaging sits the most significant change to investment taxation in a generation. The 50 per cent capital gains tax discount, in place since 1999, is being replaced. Negative gearing on established residential property is being wound back. And from 1 July 2028, discretionary trusts will pay a minimum 30 per cent tax at the trustee level.

For the average wage earner, these changes will mostly arrive as a footnote. For TAMIM’s core investor cohort, retirees running self managed super funds, family business owners, and households that have spent decades building wealth through trust structures, the implications are immediate and structural.

This is not a moment for panic. It is a moment for clear thinking.

What actually changed

Three measures matter for our readership.

First, the capital gains tax regime. From 1 July 2027, the 50 per cent CGT discount will be replaced by cost base indexation, with a 30 per cent minimum tax rate on net capital gains. This applies to individuals, trusts and partnerships. Critically, it does not apply to superannuation funds, which retain the existing one third discount for assets held longer than 12 months. Gains accrued before 1 July 2027 on existing assets will continue to receive the 50 per cent discount when realised, with a transitional split for assets straddling that date.

Second, negative gearing. From 1 July 2027, losses on established residential investment properties acquired after 7:30pm on 12 May 2026 will be quarantined. They can only be deducted against residential rental income or capital gains from residential property, not against salary or other income. Properties already owned at budget night are grandfathered. New builds remain fully negatively geared.

Third, and most consequential for many TAMIM households, the introduction from 1 July 2028 of a 30 per cent minimum tax at the trustee level on the taxable income of discretionary trusts. Fixed trusts, widely held trusts, complying superannuation funds, charitable trusts, special disability trusts and deceased estates are all excluded. Testamentary trusts in existence on 12 May 2026 are also carved out, alongside primary production income.

The Treasury estimates the trust measure alone will raise around $4.5 billion over five years.

Why this matters for SMSFs

The first piece of good news is that the SMSF, as a structure, has been left largely untouched by the headline reforms.

Superannuation funds are explicitly excluded from the new CGT regime. The one third discount remains for assets held longer than 12 months. The negative gearing changes do not apply to property held through complying super funds. And the 30 per cent minimum trust tax does not apply to SMSFs.

That does not mean SMSF retirees are unaffected. Three quieter issues deserve attention.

The Division 296 tax on superannuation balances above $3 million is now law and commences from 1 July 2026, independently of this budget. An additional 15 per cent tax will apply on earnings attributable to balances above that threshold. For SMSF members who have built balances above the cap through years of disciplined contribution and compounding, the practical question is no longer whether to engage with the change but how to structure around it.

The interaction between the trust changes and SMSF members is the more nuanced point. Many SMSF households also operate a family trust, often holding non super investments, business income or property. The structure has historically allowed income to be distributed flexibly to lower income family members, including a retired spouse drawing a pension or adult children at university. That flexibility is the specific target of the new measure.

For families who have been distributing trust income to beneficiaries on marginal rates below 30 per cent, the benefit of doing so is largely eliminated from 1 July 2028. The trustee will pay 30 per cent at the source. Beneficiaries will receive non refundable credits, which work fine if their marginal rate is above 30 per cent but produce no refund if it is below.

The result is that the long standing income splitting strategy, distributing to a low income spouse or adult child, no longer reduces the family’s overall tax bill. It simply changes who pays.

The family trust question

There are over 900,000 family trusts in Australia. Many were established decades ago, for reasons that ranged from sensible asset protection to aggressive income splitting. They are now facing the first material structural change in their tax treatment in a generation.

The government has provided an expanded rollover relief window of three years from 1 July 2027 to 30 June 2030, allowing small businesses and others to restructure out of discretionary trusts into companies or fixed trusts without triggering income tax or CGT consequences. Stamp duty and transaction costs still apply. The window is generous, but it is not unlimited.

For investors weighing the decision, several considerations matter.

Trusts retain genuine value for asset protection and estate planning, both of which are largely unaffected by the new tax. A trust still shields assets from personal liability, still allows orderly succession, and still permits flexibility in how income is allocated, even if the tax benefit of that flexibility has been blunted.

A company structure, taxed at 25 per cent for businesses with turnover below $50 million or 30 per cent otherwise, may now be more attractive for trusts that primarily generate passive investment income and distribute to beneficiaries already on marginal rates above 30 per cent.

The small business CGT concessions in Division 152 remain intact. Businesses operating through a discretionary trust that meet the small business CGT concession conditions on sale will continue to access the 15 year exemption, the active asset reduction, the retirement exemption and the rollover. The new annual trust tax does not affect the eventual sale.

For founder led businesses planning succession or sale in the medium term, the decision to restructure now must weigh the value of the existing CGT concessions, the cost of restructure, stamp duty exposure and the runway to the 2030 deadline.

The point worth emphasising is that this is not a decision to be made on a Saturday afternoon with a spreadsheet. It is one that requires accounting, tax and legal advice, ideally well before the 1 July 2028 start date.

The residential property question

For SMSF retirees holding residential investment property outside super, the negative gearing changes only affect new acquisitions from 13 May 2026 onwards. Properties already in the portfolio are grandfathered indefinitely.

The more material consideration is the interaction of the CGT change with the property cycle. For an investor sitting on a substantial unrealised capital gain on an investment property held outside super, there is now a window. Gains accrued before 1 July 2027 will still be taxed under the existing 50 per cent discount when realised, with the new indexation and 30 per cent minimum tax applying only to gains after that date.

That is not a reason to sell. It is a reason to think carefully about timing, tax planning and the role of each asset in the overall household portfolio.

For investors holding residential investment property through a discretionary trust, the three measures compound. Negative gearing is quarantined, capital gains accruing after 1 July 2027 are subject to the new regime, and the underlying trust income is taxed at a minimum 30 per cent from 1 July 2028. The combined effect is meaningfully different from the simple sum of the parts.

What this means for portfolio construction

There are several practical implications for how TAMIM investors should think about portfolio construction going forward.

The relative attractiveness of holding growth assets inside superannuation has increased. Super retains the one third CGT discount and is excluded from the trust tax. Within concessional contribution caps, super remains the most tax efficient long term wealth vehicle for most Australians.

Franked dividends become marginally more important relative to capital gains. The CGT discount reduction means after tax returns from capital growth fall, while fully franked dividends continue to receive the imputation credit treatment. This shifts the relative appeal of mature, dividend paying Australian companies versus high growth, low dividend names, particularly for higher marginal rate investors holding outside super.

The case for quality compounders strengthens. When the tax cost of realising gains rises, the value of compounding within a single high quality business also rises. A business that can compound earnings at a steady mid teens rate for a decade is more valuable, relative to a portfolio that trades frequently, than it was before these changes.

Real assets and infrastructure, particularly those held through fixed trusts or managed investment trust structures, retain their existing tax treatment. The carve out for widely held trusts is meaningful for investors using listed and unlisted infrastructure as part of a defensive income allocation.

The risks and what could change

Several caveats are worth flagging.

The measures require legislation. The Albanese government does not have a Senate majority and will need cross bench support, almost certainly including the Greens. Detail will shift. The transitional rules in particular are likely to be refined through consultation. Sensible families should not make irreversible decisions until the legislation is settled.

There is also a behavioural risk worth naming. A reform of this scale invites overreaction. The temptation will be to sell investment property, wind up trusts, or front run the 1 July 2027 transition. Some of that activity will be sensible. Much of it will not be.

The transitional rules are generous. Existing assets are largely grandfathered. The rollover window for trust restructuring runs to 2030. The case for measured, advised action well ahead of the deadlines is strong. The case for panic is not.

TAMIM Takeaway

The 2026-27 Budget is the most significant change to investment taxation since 1999. For TAMIM’s core readership, SMSF retirees, family business owners and households running family trust structures, the practical implications are real but they are manageable with the right advice and a long enough planning horizon.

The SMSF remains a tax effective vehicle for retirement wealth, largely insulated from the new regime. Family trusts retain value for asset protection and succession even where the income splitting benefit has been removed. The CGT changes are phased in with generous transitional rules. The rollover window for trust restructuring runs to 2030.

What this budget does not do is reward inertia. The households that take the time over the next eighteen months to review structures, model the impact, and make considered decisions in consultation with their tax and financial advisers will adapt without drama. The ones that do nothing until June 2027 will have fewer options and less time.

The longer term lesson is the one Australian investors keep relearning. The tax system can change. The compounding power of a quality portfolio, held patiently inside the right structure, is the durable advantage. The structure choice matters more now than it has for two decades. The investing discipline matters as much as it ever did.

Disclaimer: This article is general information only and does not constitute personal financial, tax or legal advice. Investors should seek professional advice tailored to their individual circumstances before making decisions in response to these proposed measures. The measures discussed are subject to passage of legislation and may change during the parliamentary process.