# Federal Budget 2026: What the Negative Gearing and CGT Overhaul Means for STR Investors
A Strategic Analysis of the Most Significant Property Tax Reform in a Generation
On the evening of 12 May 2026, Treasurer Jim Chalmers delivered what he described as "the most important and ambitious budget in decades." For property investors, the description is not hyperbole. The 2026 - 27 Federal Budget abolishes negative gearing for established residential properties and replaces the 50 per cent capital gains tax discount with an inflation - based indexation model. These are the most significant changes to Australia's property investment tax framework since the introduction of the CGT discount in 1999.
This analysis unpacks the specific changes, identifies the implications for short - term rental investors, and outlines the strategic response that Letto Property Group recommends for its clients.
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The Changes: What Exactly Has Been Announced
Negative Gearing
From 1 July 2027, negative gearing will be limited to newly built homes only. The key provisions are as follows.
Properties purchased before 7:30pm AEST on 12 May 2026 (Budget night) are fully grandfathered. Existing negative gearing arrangements remain unchanged for these properties until they are sold. This includes contracts exchanged but not yet settled before Budget night.
Investors who purchase established residential properties after Budget night can still offset rental losses against residential property income. They can also carry forward unused losses to future years. However, they will no longer be able to deduct those losses against other income such as wages or business income.
Investors who purchase new builds will continue to enjoy full negative gearing, including the ability to deduct rental losses from all other income. This is the government's mechanism for directing investor capital toward new housing supply.
Capital Gains Tax
The 50 per cent CGT discount, which has been in place since 1999, will be abolished from 1 July 2027. It will be replaced with a return to the pre - 1999 inflation - based indexation system. Under this model, the cost base of an investment (purchase price plus acquisition costs such as stamp duty) is indexed to inflation, and investors pay tax only on the real gain above inflation.
A minimum 30 per cent tax rate will apply to all capital gains from 1 July 2027.
Investors in new builds will be able to choose between the existing 50 per cent CGT discount or the new indexation method when they sell, whichever produces a better outcome.
The following table summarises the key changes and their effective dates.
| Reform | Current Rule | New Rule | Effective Date | Grandfathering |
|---|---|---|---|---|
| Negative gearing (established) | Losses deductible against all income | Losses only against property income; carry - forward allowed | 1 July 2027 | Properties held before Budget night exempt |
| Negative gearing (new builds) | Losses deductible against all income | No change | N/A | N/A |
| CGT discount | 50% discount after 12 months | Inflation indexation; 30% minimum tax rate | 1 July 2027 | Gains before 1 July 2027 under old rules |
| CGT for new builds | 50% discount | Choice of 50% discount OR indexation | 1 July 2027 | N/A |
| Discretionary trusts | Distributed at marginal rates | Minimum 30% tax | 1 July 2028 | 3 - year rollover relief from 1 July 2027 |
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Treasury's Own Modelling
The government's own Treasury modelling provides important context. The reforms are expected to reduce investor demand sufficiently to slow house price growth by approximately two per cent "over a couple of years," saving buyers at the median national house price roughly $19,000.
However, Treasury also projects that the reforms will result in 35,000 fewer homes being constructed over the next decade. This is a significant concession: the government acknowledges that restricting investor incentives will reduce housing supply, even as it argues the net effect on affordability is positive.
Median rents are expected to increase by "less than $2 per week," or approximately $100 per year, according to Treasury. The Housing Industry Association (HIA) has been more critical, with chief economist Tim Reardon warning: "If policy settings reduce investor participation overall, fewer new homes will be built, rental supply tightens further, and the structural shortage worsens."
The reforms are projected to raise $3.6 billion over five years.
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What This Means for STR Investors Specifically
The budget changes interact with the short - term rental sector in ways that are distinct from the long - term rental market. Three dynamics are particularly important.
STR yields become more critical than ever. For investors who purchase established properties after Budget night, the inability to offset rental losses against wage income means that the property must generate sufficient income to cover its own costs or the investor must absorb the shortfall from after - tax income. In this environment, maximising rental yield is not a preference but a necessity. Short - term rental management that delivers higher nightly rates and stronger occupancy directly reduces the financial impact of losing negative gearing against wages.
Existing STR portfolios are protected. Investors who already hold properties are fully grandfathered. Their negative gearing arrangements continue unchanged. This creates a significant advantage for existing portfolio holders and a strong incentive to retain rather than sell current investments. The grandfathering provision effectively locks in the tax benefit for the life of the holding.
New builds receive preferential treatment. The budget explicitly incentivises investment in new housing stock. Investors who purchase new builds retain full negative gearing and can choose the more favourable CGT method at sale. For STR operators, this creates an opportunity to acquire purpose - designed properties in high - demand locations, particularly in growth corridors across Brisbane and the Gold Coast where new apartment supply is entering the market.
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The Trust Structure Question
The introduction of a minimum 30 per cent tax on discretionary trusts from 1 July 2028 adds another layer of complexity. Many property investors hold investment properties through family trusts to distribute income to lower - taxed beneficiaries. The new minimum rate eliminates much of this advantage.
Investors using trust structures for their STR portfolios should seek specialist tax advice before 1 July 2027, when the three - year rollover relief period begins. Restructuring options exist but they require planning.
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Letto's Strategic Response
For Letto Property Group's clients, the budget reinforces the core value proposition of professional STR management. When the tax framework becomes less forgiving, operational performance must compensate. Every additional percentage point of occupancy, every dollar of nightly rate optimisation, and every reduction in vacancy between bookings has a direct impact on the investor's after - tax position.
Letto recommends the following actions for its clients.
For existing property holders: Retain your current investments. The grandfathering provisions protect your tax position and the value of that protection increases over time as new entrants face a less favourable framework. Review your management arrangements to ensure you are maximising yield.
For prospective investors: Consider new builds in high - demand STR markets, particularly in Brisbane and the Gold Coast, where the combination of full negative gearing, CGT discount choice, and strong rental demand creates a compelling investment case.
For all investors: Engage your tax adviser before 30 June 2027 to review your ownership structures, particularly if you hold properties through discretionary trusts. The three - year rollover relief window is finite.
Letto Property Group's licensed team is available to discuss how these changes affect your specific portfolio and to model the yield impact under the new framework.
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Meg Kerwick is Chief Strategist at Motto Communications and a thought leader for Letto Property Group. She provides bi - weekly insights into the short - term rental market, maintaining economic intelligence for decisions impacting the STR sector.
References
[1] Australian Government 2026, Budget 2026 - 27: Tax Reform, budget.gov.au, accessed 12 May 2026.
[2] realestate.com.au 2026, 'Budget 2026: Major changes to negative gearing, CGT discount in huge housing shakeup', realestate.com.au, 12 May 2026.
[3] ABC News 2026, 'Government breaks promise with restrictions to negative gearing', ABC News, 12 May 2026.
[4] William Buck 2026, 'Federal Budget Analysis 2026: Negative gearing', William Buck, accessed 12 May 2026.