The biggest property tax reform in 25 years. Here is what it actually does to your portfolio.

Three changes in sixty seconds

Treasury announced three measures on 12 May 2026. They start on three different dates, hit three different groups, and most of the news coverage so far has flattened them into a single story. They are not a single story.

Source: Treasury Fact Sheets, 12 May 2026. Anything framing this as a single "investor crackdown" has missed the point. Each measure behaves differently, starts at a different time, and applies to a different cohort.

Which one are you?

The reform behaves very differently depending on where you sit. Three composite profiles cover most situations. Pick the closest match and read that section first.

These are composites, not real clients. Your actual situation will sit somewhere along this spectrum and may overlap two profiles.

Sarah is worried about nothing.

Sarah is a marketing manager on $180k, owns one rental bought in 2023, currently negatively geared by around $11,500 a year. No plans to sell. The headlines have her panicking. They shouldn't.

No. Properties owned before 12 May 2026 are grandfathered for the life of the asset. Sarah keeps negative gearing exactly as it works today. Her roughly $5,400 a year in tax savings continues. The change applies only to properties purchased after Budget night.

The CGT change is more subtle but still benign. When Sarah eventually sells, her gain gets split in two. The portion accrued up to 30 June 2027 keeps the old 50% discount. The portion accrued from 1 July 2027 onwards uses the new indexation method. It is not retrospective. The gain she earned under today's rules keeps today's treatment.

James faces an actual decision.

James is an IT consultant on $220k, buying his first investment property at around $750k. The reform genuinely changes his maths. He has two paths and the right answer depends on more than tax alone.

If James buys an established property after Budget night, his $14k rental loss gets ring-fenced from 1 July 2027 onwards. It can only offset other property income, not his wages. That removes around $6,580 a year in tax savings until the property is cash-flow positive or sold.

If he buys a new build, negative gearing continues to apply against all income, and he gets to choose between the 50% discount and the new indexation method at sale. On tax alone, the new build wins.

Here is where most commentary will stop. We don't. The tax-favoured option is not automatically the wealth-favoured option.

Property Investment Professionals of Australia (PIPA) data on long-run capital growth in Australia is unambiguous: quality established stock has outperformed new builds by 200 to 400 basis points per year in capital growth. Over a 10 to 15 year hold, that compounding gap typically outweighs the early-years tax advantage of the new build. Especially when the new build is a marketed house-and-land package on the city fringe with a rental guarantee and an aggressive depreciation pitch.

The Patels need a plan.

The Patels operate through a family trust with two rental properties and a share portfolio. They currently distribute around $145k a year to a non-working spouse and a bucket company. Under the new rules, the same income and same distribution structure costs them materially more.

From 1 July 2028, the trustee pays 30% on trust income before any distribution. Non-corporate beneficiaries get a non-refundable credit, capped at their own tax liability. Bucket companies get no credit at all. For the Patels' setup, the change is material.

There is a relief valve. Treasury has announced a three-year rollover window from 1 July 2027 to 30 June 2030 to restructure out of a discretionary trust into another entity (typically a company or a fixed trust) without triggering CGT. Three years sounds generous. It isn't, once you account for consultation, draft legislation, advisor capacity, and your own decision-making time.

The dates that matter.

Three measures, three start dates, one rollover window. The date to circle is 30 June 2030 — the trust restructuring window closes.

What the headlines missed.

Indexation can actually be more generous than the old 50% discount.

Most coverage frames the CGT change as straightforwardly bad for investors. For long-hold investors at current inflation rates, that is wrong. Indexation inflates the cost base every year. The longer you hold, the more of your nominal gain becomes "inflation" rather than "real gain", and the less is taxable.

In our 20-year metro-new scenario (full assumptions in the recording), the new indexation method saves about $15,000 in CGT compared to the old 50% discount. The "discount" was never inflation-adjusted. Indexation is. For genuinely long-hold investors, the new method can be the friendlier one.

Existing investors are not fully spared. The CGT change still applies to you.

Most coverage says existing landlords were "spared" from the reform. Half true. Negative gearing was grandfathered for existing investors. The CGT change is not. The post-1 July 2027 portion of any future gain on your existing property uses the new rules. This is why getting a valuation on file at the transition date is the single most universally useful action item on this page, regardless of which profile you fit.

The hidden rate rise on investor cash flow.

CBA's senior economist Trent Saunders has done the modelling on what removing negative gearing actually does to investor cash flow. The number is large enough to deserve a sentence of its own.

For context: that is larger than the entire RBA tightening cycle that pushed prices sideways in 2022-23. The CBA modelling also suggests listings will fall, because grandfathered owners now have a strong disincentive to sell (selling forfeits their grandfathered treatment forever). Lower listings, in a structurally undersupplied market, generally do not lead to lower prices.

Regional yields look structurally stronger under the new rules.

The reform hits hardest where yields are lowest. CBA explicitly identifies the most affected investors as those with "high marginal tax rates, high leverage, low rental yields and high interest expenses". That profile is the typical metro buyer. Regional buyers with stronger yields are structurally more resilient.

Get this part right and the tax change matters far less to your portfolio. Get it wrong, and the new rules amplify mistakes you would have made anyway. The job of an investor for the next two years is not to chase tax structure. It is to pick assets that work on the fundamentals, then optimise the tax around them.

After 20 years, after tax: not all property is the same property.

Same investor. Same deposit. Twenty years. Negative gearing, depreciation, and CGT all included. The two scenarios below assume the new rules apply throughout.

Two insights from this. First, asset selection beats tax structure. The regional established option wins by a wide margin even without negative gearing. Second, for the metro new option, the new indexation method actually saves around $15k over the old 50% discount across the full hold period. The reform is not uniformly bad.

Full assumptions and the underlying spreadsheet are in the recording. Source: Get RARE scenario model, May 2026.