What Is a Super Fund? Investment Options and How to Project Your Balance

Most working Australians have a super fund, and many have never looked closely at what it does with their money. Super is the account where your employer's compulsory contributions are invested for decades until you retire. The fund you're in, the investment option you sit in and the fees you pay can shift your retirement balance by hundreds of thousands of dollars.

This is a plain-English guide to what a super fund actually is, what the investment options mean, and how to project your balance to retirement in a way that's honest about the uncertainty. It doesn't compare or recommend any particular fund. For the bigger picture, see our superannuation and retirement guide.

What a super fund is

A super fund is a trust. A trustee, usually a company with a board, holds and invests the money for the fund's members and must act in their best financial interests. Most Australians are in a fund regulated by APRA, the Australian Prudential Regulation Authority. The alternative is a self-managed super fund (SMSF), where the members are the trustees and the fund is regulated by the ATO.

Together the system is very large. APRA's June 2026 figures put total super assets at about $4.77 trillion, of which $3.41 trillion was in APRA-regulated funds and $1.11 trillion in SMSFs. In the year to June 2026, $236.3 billion of contributions flowed in and $148.2 billion was paid out as benefits.

Your own account works like this. Money goes in, it is invested, and it is generally locked away (or preserved) until you meet a condition of release. For anyone born on or after 1 July 1964, the preservation age is 60. You can usually take your super once you've reached 60 and retired, or from 65 even if you're still working. Before then, access is limited to special cases such as severe financial hardship or certain medical conditions.

How money gets in, and how it's taxed

Your employer must pay the Super Guarantee (SG), which has been 12% of your ordinary time earnings since 1 July 2025. These contributions are concessional: the fund pays 15% tax on them as they arrive, instead of your marginal tax rate. Investment earnings inside the fund are taxed at up to 15% while you're building your balance. You can add more through salary sacrifice or personal contributions, up to a concessional cap of $32,500 a year in 2026–27 that includes your SG.

Worked example. Mia is 30, earns $80,000 and has $50,000 in super. Her employer pays 12% × $80,000 = $9,600 a year. The fund deducts 15% contributions tax, $1,440, so $8,160 lands in her account. If her option returns 6.5% after fees and tax in the first year, her balance grows by $50,000 × 6.5% = $3,250 in earnings plus $8,160 in contributions, ending the year at $61,410.

If her income were $37,000 or less, the government's low income super tax offset would refund up to $500 of that contributions tax. If she earned more and wanted to put in extra, our guide to salary sacrifice into super works through the numbers.

Investment options: what you're actually choosing

Inside a fund, your money is invested in one or more investment options. Each holds a different mix of two kinds of asset. Growth assets such as shares and property aim for higher long-term returns but can rise and fall sharply in the short term. Defensive assets such as bonds and cash are steadier but tend to earn less over long periods.

Option	Mostly holds	What to expect
Growth (or high growth)	Shares and property	Stronger long-term returns aimed for, but bigger short-term swings
Balanced	A mix of growth and defensive assets	Moderate risk and moderate returns
Conservative	More bonds and cash	Greater stability, but long-term returns may be lower
Cash	Bank deposits and similar	The balance rarely falls, but returns may barely keep pace with inflation
Single asset class	One asset type, such as Australian shares or bonds	For people building their own mix; risk depends on the asset
Special focus	Ethical or ESG screens, or a particular region or sector	Risk and fees vary widely; read the details

Option names are not standardised. One fund's "balanced" can hold noticeably more growth assets than another's, so check the actual asset mix in the product disclosure statement.

If you never make a choice, your fund puts you in its MySuper option, a simple, low-cost default designed to suit most people. A MySuper option is either diversified, where the mix stays broadly the same, or lifecycle, where the fund moves you from growth assets into defensive assets as you get older, to reduce risk as retirement nears.

APRA tests these products every year. In the 2026 annual performance test, 49 of the 50 MySuper products tested passed and one failed. A fund that fails must write to its members, and a MySuper product that fails twice in a row must close to new members. The ATO's free YourSuper comparison tool ranks MySuper products by fees and returns and shows their test results.

Projecting your balance

A projection is a "what if", not a promise. It takes your balance, your contributions and an assumed return, and compounds them year by year. Two rules make a projection more useful:

Use returns after fees and tax. The return the fund advertises before fees isn't what you keep.
Show the result in today's dollars. $2 million in 37 years' time won't buy what $2 million buys now. ASIC's rules for super calculators and retirement estimates require them to allow for wage inflation, set at 3.7% a year from 1 January 2025, so the result is shown in today's money.

Back to Mia. Assume her salary rises 3.7% a year with wages, she gets 12% SG and nothing else, and she retires at 67, 37 years from now. We then run the same projection three times with different assumed returns after fees and tax: 5% a year for a conservative option, 6.5% for balanced and 7.5% for growth. These are illustrative assumptions for the example, not forecasts for any fund.

Mia's projected balance in today's dollars (deflated at 3.7% a year). Starts with $50,000 at age 30 on an $80,000 salary rising 3.7% a year, 12% SG less 15% contributions tax, no extra contributions. Returns are assumed and constant, after fees and tax. Actual returns vary every year.

The gap is large. At 67, the growth assumption leaves Mia with $787,831 in today's dollars and the conservative assumption $446,848, a difference of $340,983, from the same salary and the same contributions. Under the balanced assumption she ends with $623,572. Her contributions over 37 years come to about $291,000 in today's dollars, and with her starting $50,000 that is about $341,000 she put in. The remaining $282,000 or so is investment earnings, which is compounding at work.

Small differences in return compound into big differences in balance. Over a working life, one or two percentage points a year, whether from your investment option or from fees, can be worth more than everything you contribute in your first decade.

The cost of fees

Fees work the same way, in reverse. Suppose Mia stays in a balanced option but pays 0.5% a year more in fees, so her return after fees falls from 6.5% to 6%. Her projected balance at 67 drops from $623,572 to $556,651: $66,921 less in today's dollars, from a fee difference that looks tiny on an annual statement.

Mia's projected balance at 67 in today's dollars, using the same assumptions as the chart above. The third bar is the balanced option with 0.5% a year more in fees.

Why the highest projection isn't automatically the right one

The growth line looks best because the projection assumes a smooth 7.5% every year. Real markets don't work that way. A growth option will have years when the balance falls, and a 15% fall on a $500,000 balance is $75,000 gone on paper in a single year. At 30, Mia has decades to recover from that. At 64, with retirement a year away, the same fall is much harder to absorb, which is the reasoning behind lifecycle options. The right mix depends on how long until you need the money and how you'd react to a bad year. Selling out after a fall turns a paper loss into a real one.

A five-minute check of your own super

Find all your accounts. In myGov, the ATO lists your super accounts, including any lost or forgotten ones. Several accounts can mean several sets of fees and insurance premiums.
Check which option you're in. If you've never chosen one, you're in the fund's MySuper option. Find out whether it's diversified or lifecycle.
Look up your fees and performance. Use the YourSuper comparison tool, and compare like with like: balanced against balanced, over the same period.
Run a projection. Moneysmart's superannuation calculator uses the same ASIC assumptions and shows the result in today's dollars. Try more than one return assumption.
Check your insurance and beneficiaries. Many funds include default life and disability cover, and our guide to who gets your super when you die explains nominations.

Where advice fits

The maths in this article is deliberately simple. Real projections need to allow for your actual fund and fees, salary changes, career breaks, extra contributions, insurance premiums and, eventually, how you'll draw an income and how the Age Pension fits in. A licensed financial adviser can model all of that together and help you choose an investment mix you'll be able to live with in a bad year as well as a good one. When you get closer to retirement, our guides to the Age Pension assets and income tests and lifetime retirement income pick up where this one leaves off.

Sources

Disclaimer: This article is general information only and does not take into account your objectives, financial situation or needs. It is not financial product advice, and it does not describe, compare or recommend any particular fund, product or investment option. Projections are illustrative only: they use hypothetical figures and assumed, constant returns, and actual returns, fees and outcomes will differ. Past performance is not a reliable indicator of future performance. Contribution caps, tax rates and thresholds change regularly, so check current figures with the ATO. AdviceGenie is built by Cognify Labs Pty Ltd and does not hold an AFSL. Before acting on anything here, read the relevant product disclosure statement, consider its appropriateness for you and speak with a licensed financial adviser.