Superannuation and Tax: Where the Advantage Begins and Ends

Superannuation is one of the most tax-effective structures available to Australian investors. The policy intent is straightforward: encourage people to set capital aside for retirement by applying concessional tax treatment to contributions, investment earnings and, once retirement conditions are met, pension-phase assets.

For many investors, particularly those on higher marginal tax rates, the difference can be significant. But describing super as simply a 15 per cent tax environment can be misleading. The treatment changes according to how money enters the fund, whether it is in accumulation or retirement phase, the size of the balance and, ultimately, who receives it. The more useful question is how super should sit within the broader family balance sheet.

The tax advantage starts when money goes in

Super contributions broadly fall into two categories: concessional and non-concessional.

Concessional contributions include employer superannuation guarantee contributions, salary sacrifice and personal deductible contributions. They are generally taxed at 15 per cent in the fund. From 1 July 2026, the general concessional cap is $32,500, with carry-forward rules potentially increasing the amount available to some members.

Non-concessional contributions are made from after-tax money and generally attract no further contributions tax if they remain within the rules and caps. From 1 July 2026, the general non-concessional cap is $130,000, with bring-forward arrangements potentially available depending on age and total super balance.

For higher-income earners, Division 293 can impose an additional 15 per cent tax on some or all concessional contributions where Division 293 income plus relevant contributions exceeds $250,000. The headline 15 per cent contributions tax is therefore not always the final rate, making contribution strategy particularly relevant for higher-income families.

Accumulation remains a concessional tax environment

Once money is inside a complying super fund and remains in accumulation phase, assessable investment income is generally taxed at up to 15 per cent. For capital gains on eligible assets held for at least 12 months, complying super funds are entitled to a one-third CGT discount, which can reduce the effective tax rate on the discounted gain to 10 per cent.

That can compare favourably with holding the same investment personally at a high marginal tax rate. Franking credits, deductions, capital losses and the nature of the income can also change the effective rate, so 15 per cent is best understood as the headline accumulation rate rather than the tax applied to every dollar of return.

Where an asset is held can materially change the after-tax result

Consider a simplified example of $50,000 of net investment income before entity-level tax.

If the income is held personally by an investor already on the top marginal tax rate, the additional tax could be up to $23,500, including the 2 per cent Medicare levy, before considering deductions, offsets or other circumstances.

If the same income is earned by a company, company tax may be $12,500 at the 25 per cent base rate entity rate or $15,000 at the general 30 per cent rate. That is not necessarily the final family tax outcome because later dividends and franking credits also matter.

A discretionary trust operates differently. Under current law, income is generally assessed to beneficiaries according to their entitlements and circumstances rather than at a simple flat trust rate. The Government has announced a proposed 30 per cent minimum tax on certain discretionary trust income from 1 July 2028, subject to legislation.

Inside a complying super fund in accumulation phase, $50,000 of assessable investment income would generally produce up to $7,500 of fund tax before allowing for deductions, franking credits or other adjustments. If the income is attributable to assets supporting a retirement-phase income stream and qualifies as exempt current pension income, the fund-level tax may be nil.

The point is not that one structure is always superior. It is that ownership matters. Tax, access, control, estate planning and investment flexibility all need to be considered before deciding where an asset should sit.

Retirement phase changes the equation again

The tax treatment becomes particularly attractive once a member moves eligible super into retirement phase.

Investment income attributable to assets supporting retirement-phase income streams can be exempt from tax within the fund. From 1 July 2026, the general transfer balance cap is $2.1 million. A person starting their first retirement-phase pension on or after that date can generally transfer up to $2.1 million into retirement phase. Someone who commenced a pension earlier may have a different personal transfer balance cap because indexation can apply proportionately.

The transfer balance cap does not cap how much super an individual can own. It limits the amount that can move into the retirement-phase environment where investment earnings may be exempt. Capital above the personal cap can generally remain in accumulation. Because caps apply individually, the distribution of super between spouses can also affect how much family wealth can ultimately sit in retirement phase.

Accessing super is separate from the tax on the fund

A member generally gains unrestricted access to super at age 65, or earlier after reaching preservation age and satisfying a relevant retirement condition. A transition to retirement income stream may also be available in certain circumstances while continuing to work.

Once access conditions are met, benefits can generally be taken as lump sums, income streams or a combination of both.

For many retirees, an account-based pension provides regular cash flow while allowing capital to remain invested. For people aged 60 or over receiving benefits from a taxed super fund, account-based pension payments and the taxed element of lump sum withdrawals are generally tax-free to the recipient. That tax treatment is separate from the transfer balance cap, which governs how much can enter retirement phase.

Large balances now require another layer of planning

From 1 July 2026, Division 296 reduces the tax concessions available to individuals with large super balances.

For the 2026-27 income year, the large super balance threshold is $3 million and the very large super balance threshold is $10 million. Broadly, an additional 15 per cent tax can apply to the proportion of taxable super earnings attributable to the part of an individual's total super balance above $3 million. A further 10 per cent can apply to the proportion attributable to balances above $10 million.

This does not mean every dollar of earnings in a $4 million fund is taxed at 30 per cent, or that all earnings above $10 million are taxed at 40 per cent. The additional tax applies to defined proportions of relevant earnings and the thresholds are indexed. For larger balances, asset location and the relative role of super, trusts, companies and personally held investments therefore become more important.

Super also needs an estate strategy

Superannuation does not automatically pass through a person's will in the same way as assets owned personally. The fund's governing rules, beneficiary nominations and the recipient's status under superannuation and tax law can all affect the outcome.

Death benefits paid to a tax dependant can generally receive favourable tax treatment. By contrast, an adult child who is not a tax dependant may be taxed on the taxable component of a super death benefit. For 2026-27 withholding purposes, the taxed element paid to a non-dependant is generally subject to tax at 17 per cent including Medicare levy, while an untaxed element can attract a higher rate.

For larger estates, the tax components of super, beneficiary nominations and the intended destination of wealth should be reviewed well before they become urgent. A structure that is efficient during retirement can still produce an avoidable tax cost if estate planning is ignored.

Super should sit inside the wider wealth strategy

Superannuation remains an exceptionally valuable retirement structure, but the concessions have boundaries. Contribution caps limit how quickly capital can enter the system, access is restricted until a condition of release is met, transfer balance caps limit the amount in retirement phase, and Division 293 and Division 296 reduce concessions for higher-income earners and larger balances. Estate outcomes can also differ materially depending on who receives the benefit.

At Core, we view super as one part of a connected strategy rather than a stand-alone tax solution. Retirement modelling is more useful when it considers super alongside personally held investments, trusts, companies, debt, cash flow and estate objectives. The objective is to position capital across the structures that best support access, flexibility, tax efficiency and long-term family goals.

Super is powerful because the concessions are significant. The value comes from understanding where they apply, where they taper, and how to use the structure deliberately rather than by default.

References and sources

1. Australian Taxation Office. Understanding concessional and non-concessional contributions.
2. Australian Taxation Office. Contributions caps.
3. Australian Taxation Office. Division 293 tax on concessional contributions by high-income earners.
4. Australian Taxation Office. How SMSFs are taxed.
5. Australian Taxation Office. Exempt current pension income.
6. Australian Taxation Office. General transfer balance cap indexation on 1 July 2026 and Indexed changes to personal transfer balance caps.
7. Australian Taxation Office. When you can withdraw your super.
8. Australian Taxation Office. Schedule 12 - Tax table for superannuation lump sums and Schedule 13 - Tax table for superannuation income streams, 2026-27.
9. Australian Taxation Office. Division 296 tax on large super balances.
10. Australian Taxation Office. Company tax rates and Australian resident tax rates.
11. Australian Government, Budget 2026-27. Minimum tax on discretionary trusts. The measure is proposed to apply from 1 July 2028 and remains subject to the legislative process.
12. Core Wealth Advisors. Corporate Brochure and B2B Services Brochure, 2026.

Sources accessed 11 August 2026. Tax and superannuation rules can change and individual outcomes depend on personal circumstances.

Important information

This article contains general information only and does not take into account any person's objectives, financial situation or needs. It should not be relied upon as personal financial, taxation or legal advice. Tax outcomes depend on individual circumstances, the nature of the investment, the relevant entity and the law applying at the time. Consider obtaining financial, tax and legal advice before making decisions about superannuation or investment structures.