Capital gains tax (CGT) is back in the spotlight in 2026, with investors bracing for possible changes to long‑standing discounts and concessions that have shaped Australia’s property and share markets for decades. While no final laws are passed yet, the direction of debate is clear: expect tighter settings, lower discounts, and closer scrutiny of investment‑driven gains, especially in housing.
Quick refresher: how CGT works today
Capital gains tax is not a separate tax, but part of your income tax: you pay CGT when you make a profit on the sale of a “CGT asset” such as property, shares, units in managed funds, or cryptocurrency. The gain is generally the difference between what it cost you to acquire and hold the asset and what you received when you disposed of it, after allowable costs and adjustments.
Key features of the current system include:
- If you hold an asset for less than 12 months, the entire gain is included in your taxable income at your marginal rate.
- If you hold a CGT asset as an individual or trust beneficiary for 12 months or more, you are usually eligible for a 50% CGT discount, so only half the gain is taxed.
- Complying super funds typically receive a 33.33% CGT discount on eligible gains.
- Your main residence (principal home) is generally exempt, and most assets acquired before 20 September 1985 are outside the CGT regime.
The ATO’s official Guide to capital gains tax 2025 explains these rules in detail, including how to calculate gains, record‑keeping and special concessions. For more technical scenarios (such as multiple assets or large gains), the ATO’s capital gains tax schedule and instructions 2025 sets out when you must complete a CGT schedule with your return.
Why CGT is under review in 2026
The core CGT discount model dates back to 1999, and by 2026 it is under renewed scrutiny from policymakers concerned about housing affordability, budget pressures and fairness between wage earners and investors.
A few key developments have pushed CGT back into the headlines:
- A Senate Select Committee on the Operation of the Capital Gains Tax Discount was established on 4 November 2025, with a final report due in March 2026, examining impacts on housing, productivity and inequality.
- Media reports suggest changes to the CGT discount could be a centrepiece of the May 2026 federal budget, potentially altering long‑standing settings for property and share investors.
- Parliamentary Budget Office analysis shows the CGT discount in its current form is projected to cost the federal budget around $247 billion over the decade, fuelling debate about whether the concession is too generous.
The CommBank explainer, What is capital gains tax and why is everyone talking about it again?, summarises why CGT is central to current debates about tax reform and housing. ABC News’ piece How capital gains tax changes could impact you outlines the kinds of changes under consideration and the groups most affected.
Proposed CGT changes for 2026: what’s on the table
As at March 2026, the key CGT proposals are not yet law, but there is enough detail in public documents and leaks to understand the broad direction.
1. Reducing the CGT discount for individuals
One of the most discussed proposals is to cut the CGT discount for individuals and trusts from 50% to 25%, effectively doubling the taxable portion of long‑term capital gains.
According to one widely cited outline of Capital Gains Tax Changes Australia 2026, the proposed changes would:
- Reduce the CGT discount from 50% to 25% on assets held over 12 months.
- Apply to property, shares and other capital assets held by individuals and trusts.
- Leave the basic tax structure in place (CGT integrated into personal income tax), but increase the proportion of the gain included in taxable income.
The Parliamentary Budget Office paper on negative gearing and capital gains tax (CGT) reform modelled a similar change: halving the discount would mean 75% of long‑term gains are taxable instead of 50%, lifting tax bills for investors in higher brackets.
Realestate.com.au’s explainer, Capital Gains Tax: Why reforming this major discount could hurt small investors, illustrates how the current 50% discount significantly lowers tax on long‑held investment properties and why a cut may bite “mum and dad” landlords.
2. Housing‑specific changes and affordable rental incentives
While the core discount for most assets may be cut, policymakers are also considering targeted incentives for affordable housing, building on existing concessions.
The ATO’s capital gains tax schedule and instructions 2025 already notes an extra CGT discount of up to 10% for individuals who provide affordable rental housing, taking the total discount to up to 60% for qualifying properties. Future reforms may expand or reshape this concession to encourage build‑to‑rent and social housing projects.
On the flip side, business groups like the Property Council warn that cutting CGT discounts and tightening negative gearing could discourage broad investment in rental housing, worsening Australia’s existing shortage and pushing rents higher. An article on tax changes potentially worsening the housing shortage sums up these concerns.
3. Interaction with negative gearing reforms
Proposals to reduce the CGT discount are often linked with changes to negative gearing, especially on multiple investment properties.
A 2025 Parliamentary Budget Office costing on phasing out negative gearing and CGT tax concessions for property investors outlines a scenario where:
- Negative gearing is removed for most assets beyond a first investment property.
- The CGT discount is modified or removed for residential investment properties, while other assets continue to receive a concession through indexation.
Such a package would significantly reshape the after‑tax return profile of leveraged investors, particularly those heavily exposed to property.
What stays the same (for now)
Despite the noise, several fundamentals remain in place in early 2026:
- CGT is still only triggered when a CGT event happens, such as selling an asset, not just because its value has gone up on paper.
- The main residence exemption remains, so your principal home is generally CGT‑free.
- Assets bought before 20 September 1985 generally stay outside the CGT system.
- The 12‑month rule is still key: assets held for less than a year do not qualify for any discount under current rules.
For the most up‑to‑date official guidance, always refer to the ATO’s Guide to capital gains tax 2025, which will be updated again for 2026 once budget measures are legislated.
How potential CGT changes could affect different investors
Property investors
Property investors are at the centre of this debate, because CGT discounts and negative gearing have long been part of the investment property playbook in Australia.
A cut to the CGT discount from 50% to 25% on long‑term gains would:
- Increase the taxable portion of capital gains on investment properties held by individuals and trusts.
- Reduce after‑tax returns, especially for high‑income investors who face the highest marginal rates.
- Potentially shift some investors towards owner‑occupier strategies or other asset classes if property becomes relatively less attractive.
Realestate.com.au’s Capital Gains Tax: Why reforming this major discount could hurt small investors includes worked examples showing how changing the discount could materially raise tax bills for typical landlords.
At the same time, analysis from groups like Mortgage Choice in 9 big changes coming for Aussie home buyers, renters in 2026 highlights concerns that higher investor taxes may tighten supply and keep upward pressure on rents.
Share and ETF investors
Investors in shares, ETFs and managed funds are also exposed to CGT discount reforms, though public debate often focuses on property.
- A lower discount means more of your realised gains on long‑held shares or units would be included in your taxable income.
- This is particularly relevant for long‑term, buy‑and‑hold portfolios that periodically rebalance or harvest gains.
The ATO’s Guide to capital gains tax 2025 includes specific sections on CGT for shares, units and managed funds, which will remain essential reading even if the discount percentage changes. For expats, the article Capital Gains Tax for Australian Expats: Rules, Rates, and Exemptions is a useful independent overview of how CGT interacts with residency and offshore asset disposals.
Superannuation funds
Complying super funds currently enjoy a one‑third CGT discount (33.33%) for eligible gains, and pension‑phase assets can be even more favourably taxed.
- Most publicly discussed 2026 proposals focus on individual and trust discounts, but superannuation can still be indirectly affected by broader CGT reforms and housing policies.
- Any change to how super funds are taxed on gains would likely be highly controversial and is not front‑and‑centre in current debates.
For current rules, see the ATO’s Guide to capital gains tax 2025, which covers superannuation entities and special concessions.
Example: how a discount cut could change your tax
The Search Property explainer on Capital Gains Tax Changes Australia 2026 provides a simple example of the current regime.
Under current rules:
- Buy an investment property for $500,000, sell it later for $800,000 after holding it more than 12 months.
- Gross capital gain = $300,000.
- With the 50% CGT discount, only $150,000 is added to your taxable income.
If the discount were cut to 25%:
- Only 25% of the gain would be discounted, meaning 75% (or $225,000) would be taxable.
- For someone on a high marginal tax rate, that difference in taxable amount could translate into tens of thousands of dollars in extra tax.
This is why commentators are calling it potentially the “biggest tax increase in decades” for certain property investors, as flagged by financial media and investor‑focused channels discussing CGT and negative gearing changes scheduled for the May 2026 budget.
Practical steps for investors in 2026
With reforms likely but the exact final shape still uncertain, investors should focus on positioning rather than panic.
1. Stay close to official guidance
- Monitor the ATO’s Guide to capital gains tax 2025 and the upcoming 2026 guide for updated law once the budget is passed.
- Watch the federal budget in May 2026 and subsequent ATO fact sheets that will detail start dates and transitional rules.
2. Review your portfolio’s CGT exposure
- Identify assets with large unrealised gains, especially investment properties and long‑held shares or ETFs.
- Consider whether it makes sense to realise some gains under current rules versus waiting for potential higher taxable proportions.
- For investors nearing retirement or residency changes, timing disposals could be particularly important.
3. Stress‑test your numbers
- Run scenarios where the CGT discount is 25% instead of 50%, using examples from Capital Gains Tax Changes Australia 2026 and realestate.com.au’s CGT discount explainer.
- Understand how much extra tax you would pay if you sold key assets under the proposed regime, then decide whether your investment case still holds.
4. Consider structure and strategy, not just tax
- Ensure that tax rules are not the only driver of your investment decisions; fundamentals like asset quality, diversification and risk tolerance remain critical.
- If you are heavily concentrated in geared property, read PBO analyses such as negative gearing and CGT reform and phase out negative gearing and CGT tax concessions for property investors to understand potential long‑term policy directions.
5. Get personalised advice
- Complex reforms, residency issues and portfolio‑wide planning mean generic information can only go so far.
- Consider speaking with a registered tax agent or financial adviser who can tailor strategies for your circumstances, especially if you hold multiple properties or substantial share portfolios.
Review your trading platform: if you’re actively trading CFDs, forex or ASX shares, make sure your broker is cost‑effective and well regulated, because higher CGT will magnify the impact of fees and spreads. A good starting point is reading independent broker reviews such as CMC Markets Review: Is It Good for Australian Traders? to understand platform features, ASIC regulation and total trading costs.
In summary, the 2026 capital gains tax debate marks a turning point for Australian investors, especially “mum and dad” landlords and long‑term holders of property, shares and ETFs. While the precise reforms are not yet legislated, the direction is clear: generous CGT discounts and related concessions are under pressure, and after‑tax returns on investment assets are likely to fall compared with the last two decades.
Rather than reacting out of fear, investors now need to sharpen their numbers, stress‑test portfolios under lower discounts, and think more deliberately about structure, diversification and holding periods. Official ATO guidance such as the Guide to capital gains tax 2025, independent explainers like Capital Gains Tax Changes Australia 2026 and policy costings from the Parliamentary Budget Office give you the framework to make informed decisions instead of relying on headlines alone. By combining these resources with tailored professional advice, you can adjust strategy ahead of the 2026–27 rules, protect your long‑term wealth plan, and avoid being blindsided by what could be the most significant CGT shift in a generation.