Understanding superannuation tax in Australia
Superannuation is one of the most tax-effective wealth-building vehicles available to Australians. However, the tax treatment of super is multi-layered — different rules apply to contributions, investment earnings, and withdrawals depending on your age, income, and the type of contribution you make. Understanding these rules is essential for making informed decisions about your retirement savings.
Tax on contributions
Concessional (before-tax) contributions
Concessional contributions include employer Superannuation Guarantee (SG) payments, salary sacrifice arrangements, and personal contributions you claim as a tax deduction. These contributions are taxed at a flat rate of 15% within the super fund, which is significantly lower than the marginal tax rate for most working Australians.
For FY2024-25, the concessional contributions cap is $30,000 per financial year. This cap includes all employer SG contributions, salary sacrifice amounts, and any personal deductible contributions. If you exceed this cap, the excess is included in your assessable income and taxed at your marginal rate, with a 15% offset to account for tax already paid within the fund.
If you have unused concessional cap amounts from prior years (up to five years), you may be able to carry them forward, provided your total super balance was below $500,000 at 30 June of the previous financial year. This can be a powerful strategy for those with variable incomes or those looking to make a larger one-off contribution.
Non-concessional (after-tax) contributions
Non-concessional contributions are made from your after-tax income and are not taxed when they enter the fund. The annual cap for FY2024-25 is $120,000. If you are under 75, you may be able to bring forward up to three years of caps ($360,000) in a single year, subject to your total super balance being below certain thresholds.
These contributions do not reduce your taxable income, but the investment earnings on them within super are taxed at concessional rates, making them a useful tool for building tax-effective wealth once you have maximised your concessional contributions.
Division 293 tax
If your income plus concessional super contributions exceed $250,000 in a financial year, you may be liable for Division 293 tax. This is an additional 15% tax on concessional contributions (or the portion that pushes you over the threshold), bringing the effective tax rate on those contributions to 30%.
Division 293 is designed to reduce the tax benefit of super for higher-income earners. The ATO will issue an assessment after you lodge your tax return, and you can choose to pay the liability from your super fund or from personal funds. You can use our tax calculations feature to model how Division 293 affects your overall tax position.
Tax on investment earnings
Investment earnings within a super fund during the accumulation phase are taxed at a maximum rate of 15%. Capital gains on assets held for more than 12 months receive a one-third discount, reducing the effective rate to 10%. This is considerably lower than the tax rates that apply to investments held outside of super, where capital gains are taxed at your marginal rate (with a 50% discount for assets held over 12 months).
Once a super fund moves into the retirement (pension) phase, investment earnings are generally tax-free, up to the transfer balance cap. This tax-free treatment is one of the most significant advantages of superannuation and is a key reason why maximising super contributions during your working life can have a substantial impact on your retirement outcome.
Low-income super tax offset
If your adjusted taxable income is $37,000 or less, you may be eligible for the low-income superannuation tax offset (LISTO). The government contributes up to $500 directly into your super fund, effectively refunding the 15% contributions tax. This ensures that low-income earners are not disadvantaged by the super contributions tax rate relative to their marginal income tax rate.
Tax on withdrawals
Withdrawals after age 60
For most Australians, withdrawals from a taxed super fund after age 60 are completely tax-free, whether taken as a lump sum or as a regular income stream. This applies to both the tax-free and taxable components of your super balance. This tax-free status makes superannuation one of the most attractive long-term savings vehicles available.
Withdrawals between preservation age and 60
If you access your super between your preservation age (currently between 55 and 60, depending on your date of birth) and age 60, the tax-free component of your withdrawal is still tax-free. However, the taxable component is taxed at your marginal rate, with a 15% offset. A low-rate cap also applies to lump sum withdrawals, allowing a certain amount of the taxable component to be withdrawn tax-free (indexed annually).
Withdrawals before preservation age
Withdrawing super before your preservation age is generally only possible in very limited circumstances, such as severe financial hardship or on compassionate grounds. When early access is granted, the taxable component is taxed at your marginal rate plus an additional 2% levy (with no 15% offset), making it a costly option.
Transition to retirement
Once you reach your preservation age, you can access a transition to retirement (TTR) income stream while continuing to work. A TTR pension allows you to draw between 4% and 10% of your super balance each financial year. This strategy can be used to supplement your income if you reduce your working hours, or combined with salary sacrifice to improve your overall tax efficiency.
It is important to note that investment earnings within a TTR pension are still taxed at up to 15% (unlike a standard retirement pension, where earnings are tax-free). The tax benefit of a TTR strategy depends on your individual circumstances, particularly your marginal tax rate and the amount you can salary sacrifice.
Planning your super tax strategy
The interaction between contribution caps, Division 293, investment earnings tax, and withdrawal rules creates a complex landscape. Small decisions — such as whether to salary sacrifice an additional amount, or whether to make a non-concessional contribution — can have a meaningful impact on your retirement balance over decades.
Our superannuation tracking feature lets you model your current super position, project future balances, and see how different contribution strategies affect your retirement outcome. Combined with our tax calculations, you can understand the full picture of how super tax rules apply to your situation.
If you are approaching retirement, the retirement income calculator can help you estimate how much income your super balance could generate and how long it might last under different drawdown scenarios.
Key takeaways
Superannuation tax is not a single rate — it is a system of rates that apply differently at each stage. Contributions are generally taxed at 15% (or 30% for high-income earners under Division 293). Earnings are taxed at up to 15% during accumulation and are tax-free in retirement. Withdrawals after age 60 are tax-free from taxed funds. Understanding these layers allows you to make strategic decisions that can significantly improve your retirement position over time.