The 2026-27 federal budget will be delivered on Tuesday 12 May 2026. The strongest signal in pre-budget commentary is that the government will replace the 50% capital gains tax discount for individuals with inflation indexation, or a reduced version of the current discount, across all asset classes. Most coverage has focused on property and housing affordability.
For the 600,000+ Australians running an SMSF, the real question is different. If the individual CGT discount changes but the super fund discount stays the same, the relative tax advantage of holding growth assets inside super shifts. In some scenarios it gets bigger. In others, it reverses entirely. The direction depends on a single variable: how an asset’s growth compares to inflation over the holding period.
This article explains the current CGT settings, what indexation would change, and uses two worked examples to show when the SMSF advantage grows and when it disappears. It also covers what trustees should and should not do before budget night.
Key Takeaways
- The 2026 federal budget is widely expected to replace the individual 50% CGT discount with inflation indexation across all asset classes. This has not been confirmed. Budget papers go live at 7:30pm AEST on Tuesday 12 May at budget.gov.au.
- SMSFs in accumulation phase currently receive a one-third CGT discount, taxed at 15%. This is a separate legislative provision from the individual 50% discount.
- When asset growth significantly outpaces inflation, indexation is less generous than the current 50% flat discount. The individual’s tax bill rises. The SMSF position is unchanged. The SMSF advantage gets bigger.
- When inflation outpaces asset growth, indexation can eliminate the individual’s taxable gain entirely. The SMSF still pays tax on the nominal gain. The SMSF advantage can reverse completely.
- Pension phase assets remain exempt from CGT regardless of any changes to the individual discount. This analysis applies only to accumulation phase.
- The super fund one-third CGT discount has historically been maintained as a separate provision in past reforms. If it were also replaced with indexation, the comparison would reduce to a pure rate difference (37% vs 15%), making super advantageous in virtually every case.
- Confirmed EOFY actions, including contribution strategies, the Division 296 cost base reset election, and minimum pension payments, do not depend on budget outcomes and should not be delayed.
Contents
- How Is Capital Gains Tax Currently Applied to SMSFs?
- What Is CGT Indexation and How Does It Differ from the 50% Discount?
- When Does the SMSF Advantage Get Bigger Under Indexation?
- When Does the SMSF Advantage Reverse Under Indexation?
- Does This Affect Assets in Pension Phase?
- Could the Super Fund CGT Discount Change Too?
- What Should SMSF Trustees Do Before Budget Night?
- Frequently Asked Questions
How Is Capital Gains Tax Currently Applied to SMSFs?
Three CGT settings matter when comparing assets held inside an SMSF with assets held personally.
An individual who sells an asset held for more than 12 months receives a 50% CGT discount. Half the nominal gain is excluded from assessable income. The remaining half is taxed at the individual’s marginal rate. For someone on a 37% marginal rate, the effective CGT rate on the total gain is 18.5%.
An SMSF in accumulation phase receives a smaller one-third discount. Two-thirds of the gain is included in the fund’s assessable income and taxed at 15%. The effective CGT rate on the total gain is 10%.
An SMSF in pension phase pays no CGT. Investment earnings on assets supporting a retirement phase pension are exempt under the exempt current pension income (ECPI) provisions. For a full explanation of how pension phase works, see the SMSF Pension Guide.
The gap between 18.5% (individual) and 10% (SMSF accumulation) is one of the core reasons growth assets are held inside super. The 0% rate in pension phase extends that advantage further.
For a complete list of the thresholds that govern contributions, pensions, and balance limits, see the SMSF Rules and Limits reference.
What Is CGT Indexation and How Does It Differ from the 50% Discount?
Under indexation, the flat 50% discount disappears for individuals. Instead, the asset’s cost base is adjusted upward each year by the Consumer Price Index (CPI). When the asset is eventually sold, only the gain above cumulative inflation is included in assessable income and taxed at the individual’s marginal rate.
This was Australia’s CGT system before 1999. When the Howard government introduced the 50% discount in September 1999, it replaced indexation for most taxpayers, including super funds. Super funds received a reduced one-third discount in place of both the individual 50% discount and the prior indexation method.
The return to indexation is the most widely discussed model in current budget speculation. CBA’s federal budget preview expects the change to apply across all asset classes with partial grandfathering for existing holdings. The Senate Select Committee on the Capital Gains Tax Discount, which reported in March 2026, examined multiple reform options including a reduced discount, a return to indexation, and different treatment for housing versus other assets. The Treasurer has publicly discussed the issue in the context of intergenerational fairness but has not confirmed a specific model.
Nothing is confirmed until budget papers are released at 7:30pm AEST on Tuesday 12 May at budget.gov.au.
The critical variable under indexation is how an asset’s growth rate compares to inflation over the holding period. When growth substantially outpaces inflation, the indexed cost base adjustment is smaller than the 50% flat discount, meaning more of the gain is taxable. When inflation is high relative to growth, indexation can shelter most or all of the nominal gain.
When Does the SMSF Advantage Get Bigger Under Indexation?
Consider a straightforward example. An investor buys shares for $200,000 and sells 10 years later for $400,000. The total nominal gain is $200,000. Cumulative inflation over the period is 35% (approximately 3% per year).
Under indexation, the cost base rises from $200,000 to $270,000 (adjusted for 35% cumulative CPI). The taxable gain falls to $130,000. Under the current 50% discount, the taxable gain would be $100,000.
| Current individual (50% discount) | Individual under indexation | SMSF accumulation (1/3 discount) | |
|---|---|---|---|
| Cost base | $200,000 | $270,000 | $200,000 |
| Taxable gain | $100,000 | $130,000 | $133,333 |
| Tax rate | 37% | 37% | 15% |
| Tax payable | $37,000 | $48,100 | $20,000 |
Under current rules, the SMSF saves $17,000 compared to the individual position. Under indexation, the individual’s tax rises to $48,100 while the SMSF is unchanged at $20,000. The SMSF advantage widens from $17,000 to $28,100.
The reason is straightforward. The asset grew well above inflation. The real gain ($130,000) is larger than the flat-discounted gain ($100,000). Indexation is less generous to the individual than the 50% discount was. The SMSF, still operating on its one-third discount at 15%, becomes comparatively better.
For long-term holders of growth assets in a normal economic environment where asset returns outpace inflation, this is the most likely outcome. It applies to shares, property, and any other growth asset held for extended periods.
When Does the SMSF Advantage Reverse Under Indexation?
Now consider a different environment. An investor buys a property for $500,000 and sells 8 years later for $650,000. The nominal gain is $150,000. Cumulative inflation over the period is 42%, reflecting an average of 4.5% per year.
Under indexation, the cost base rises from $500,000 to $710,000. That exceeds the sale price. There is no real gain. The individual owes nothing.
| Current individual (50% discount) | Individual under indexation | SMSF accumulation (1/3 discount) | |
|---|---|---|---|
| Cost base | $500,000 | $710,000 | $500,000 |
| Taxable gain | $75,000 | Nil | $100,000 |
| Tax rate | 37% | 37% | 15% |
| Tax payable | $27,750 | $0 | $15,000 |
Under current rules, the SMSF saves $12,750 compared to the individual. Under indexation, the individual pays nothing while the SMSF still pays $15,000 on the nominal gain.
The advantage reverses completely. In this scenario, holding the asset outside super produces the better CGT outcome.
Over longer holding periods, most growth assets have historically outpaced inflation, and this reversal would not apply. Shorter holds, or periods of subdued real growth across certain asset classes, are where the risk concentrates. Both conditions describe aspects of the current Australian market. Annual inflation hit 4.6% in the year to March 2026. Growth in several property segments and defensive asset classes has been flat or marginal over recent years.
The reversal does not mean super is a bad environment for growth assets in general. It means the CGT comparison between inside and outside super becomes more dependent on economic conditions under indexation than it was under the flat 50% discount.
Does This Affect Assets in Pension Phase?
No. Pension phase assets remain exempt from CGT regardless of what happens to the individual discount. The exemption operates under the ECPI provisions and is unrelated to the CGT discount framework.
For members in pension phase, holding growth assets inside super remains strongly advantaged under any likely CGT scenario. The 0% rate in pension phase is not affected by changes to the individual discount or to the accumulation phase discount.
This analysis applies only to assets held in accumulation phase, where the one-third discount is the relevant concession. Trustees managing funds with members in both phases should be clear about which assets sit in which phase before evaluating any post-budget implications.
For the rules governing minimum pension payments that must be met by 30 June, see SMSF Pension Minimum Drawdowns: The 30 June Deadline.
Could the Super Fund CGT Discount Change Too?
The super fund one-third CGT discount is a separate legislative provision from the individual 50% discount. It sits in Section 115-100 of the Income Tax Assessment Act 1997. In past reforms, including the original introduction of the 50% discount in 1999, the super fund concession has been maintained independently.
No public commentary on the 2026 budget has suggested the super fund discount will change. However, it is worth understanding the alternative scenario.
If the one-third discount were also replaced with indexation, both individuals and super funds would be taxed on the same real gain (the nominal gain minus the CPI adjustment). The comparison would reduce purely to the tax rate difference: the individual’s marginal rate (up to 45% plus Medicare levy) versus the fund’s 15% rate. In that scenario, holding growth assets inside super would be advantageous in virtually every case, because the rate differential is substantial and consistent regardless of inflation or growth conditions.
The point to watch on budget night is whether the announced changes apply only to individuals or extend to complying super funds as well. That single detail determines whether the analysis in this article shifts.
What Should SMSF Trustees Do Before Budget Night?
Confirmed EOFY actions do not depend on budget outcomes. Contribution cap increases, the Division 296 cost base reset election, and minimum pension payments are all governed by existing law and existing deadlines. Under current tax settings, pension phase assets remain strongly advantaged for growth holdings under any likely CGT scenario.
For trustees weighing whether to hold a new growth asset inside or outside super, the answer may look different after Tuesday. The starting point for any post-budget analysis is knowing which of the fund’s assets sit in accumulation phase and which are in pension phase.
Contribution caps increase from 1 July 2026: the concessional cap rises from $30,000 to $32,500, the non-concessional cap from $120,000 to $130,000, and the general transfer balance cap rises from $2 million to $2.1 million. For trustees making EOFY contribution decisions, see the SMSF Contribution Strategies Guide and the SMSF Contribution Caps reference. The five-year carry-forward rule means 2025-26 is the last year to use any unused concessional cap from 2020-21 before it expires permanently.
Separately, SMSF investment strategies should reflect current market conditions. If your fund’s written strategy was last reviewed when inflation was 3% and interest rates were falling, it no longer reflects the environment the fund is operating in. Updating it before 30 June strengthens the fund’s compliance position. For what the ATO expects, see SMSF Investment Strategy Requirements.
Budget papers go live at budget.gov.au at 7:30pm AEST on Tuesday 12 May.
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Frequently Asked Questions
What is the CGT discount for SMSFs in accumulation phase?
Complying superannuation funds, including SMSFs, receive a one-third (33.33%) CGT discount on assets held for more than 12 months. This means two-thirds of the capital gain is included in the fund’s assessable income and taxed at 15%. The effective CGT rate is 10% of the total nominal gain. This is separate from the 50% discount available to individuals. The ATO’s CGT discount guidance outlines the full eligibility conditions.
How does CGT indexation work?
Under indexation, the cost base of an asset is adjusted upward each year by the Consumer Price Index (CPI). When the asset is sold, the taxable gain is the sale price minus the indexed cost base, not the original purchase price. Only the gain above cumulative inflation is taxed. This method was used in Australia before the 50% discount was introduced in September 1999. The key variable is the relationship between the asset’s growth and inflation over the holding period.
Will the 2026 budget definitely change the CGT discount?
No. As of 7 May 2026, no CGT changes have been confirmed. The return to indexation across all asset classes is the most widely discussed model in budget commentary, supported by analysis from CBA, the Senate Select Committee on the Capital Gains Tax Discount (which reported in March 2026), and the Treasurer’s public statements on intergenerational fairness. Budget papers will be released at 7:30pm AEST on Tuesday 12 May at budget.gov.au.
Does the expected change affect SMSF pension phase assets?
No. Assets in pension phase are exempt from CGT under the exempt current pension income (ECPI) provisions. This exemption is unrelated to the CGT discount framework and would not be affected by a change to the individual or super fund discount. Pension phase remains strongly advantaged for holding growth assets under any likely CGT scenario.
Would the SMSF one-third discount change too?
The super fund one-third CGT discount is a separate legislative provision (Section 115-100 of the Income Tax Assessment Act 1997). No public commentary has suggested it will change in the 2026 budget. In past reforms, the super fund concession has been maintained independently. The key detail to watch on budget night is whether any announced changes apply to complying super funds or only to individuals.
What happens if inflation is higher than asset growth?
Under indexation, the indexed cost base can exceed the sale price if cumulative inflation outpaces the asset’s nominal growth. In that case, there is no real gain and no CGT is payable by the individual. However, an SMSF in accumulation phase would still apply its one-third discount to the nominal gain and pay 15% on the taxable amount. This means the SMSF could pay more tax than an individual on the same asset in high-inflation, low-growth conditions.
Should I delay EOFY decisions until after the budget?
Confirmed EOFY actions should not be delayed. Contribution caps, the Division 296 cost base reset election, and minimum pension payments are governed by existing law and do not depend on budget outcomes. However, if you are weighing whether to acquire a new growth asset inside or outside super, it may be worth waiting to see whether the CGT discount framework changes before committing. Discuss timing with your SMSF adviser.
What are the contribution cap changes from 1 July 2026?
From 1 July 2026, the concessional contributions cap rises from $30,000 to $32,500, the non-concessional cap rises from $120,000 to $130,000, and the general transfer balance cap increases from $2 million to $2.1 million. The three-year bring-forward maximum rises to $390,000. These changes are confirmed and do not depend on the budget. For full details, see the SMSF Contribution Caps page.
This article is general information only and does not constitute financial advice. The expected CGT discount changes discussed in this article have not been confirmed as of 7 May 2026. Every fund’s circumstances are different. Always consult a licensed financial adviser or SMSF specialist before making decisions about your fund.