Superannuation works by having your employer pay a percentage of your wages into a dedicated investment account in your name. That money is invested by your super fund, grows over your working life through compound returns, and becomes available to you at retirement. Understanding how each step of this process works helps you make better decisions — and potentially retire with significantly more money.
This guide covers the full mechanics of super: how money flows in, how it’s invested, how it grows, and how you eventually access it.
Step 1 — Money Flows Into Your Fund
Employer Contributions
Every time your employer pays your wages, they are also legally required to contribute an additional amount — equal to 12% of your ordinary time earnings (OTE) — directly to your super fund. This is called the Superannuation Guarantee (SG).
Your employer pays SG contributions separately to your wages. It does not come out of your take-home pay — it is an on-top obligation your employer must meet.
From 1 July 2026, a major reform called Payday Super takes effect. Employers will be required to pay super contributions on the same day they pay your wages, rather than quarterly. This dramatically reduces the risk of super going unpaid and accumulating undiscovered.
Voluntary Contributions
You can also add money to your super yourself:
- Salary sacrifice — arrange with your employer to redirect part of your pre-tax pay into super. This is taxed at 15% inside super rather than at your marginal tax rate.
- Personal after-tax contributions — transfer money from your bank account into super. These are made from income you’ve already paid tax on. If you are self-employed or want to claim a tax deduction, you can lodge a Notice of Intent to Claim a Deduction with your fund under Section 290-170 of the tax law.
- Spouse contributions — contribute into your spouse’s super account.
Contribution Caps
The government limits how much can be contributed to super each year at concessional tax rates:
| Contribution type | FY2025–26 cap |
|---|---|
| Concessional (pre-tax: employer SG + salary sacrifice + deductible personal) | $30,000/year |
| Non-concessional (after-tax) | $120,000/year |
Exceeding these caps has serious tax consequences — excess amounts are assessed at your marginal tax rate with an interest charge. For full detail, see our guide on super contribution limits.
Step 2 — Your Fund Receives and Allocates the Money
Your Account Balance
Once contributions arrive at your fund, they are allocated to your personal account. Your balance is made up of:
- All contributions received on your behalf
- All investment returns (gains or losses) attributed to your account
- Less any fees deducted and any insurance premiums charged
Unit Pricing — How Super Funds Calculate Your Balance
Most super funds use a unit pricing system to track your share of the fund’s investment pool.
Here’s how it works:
- When money enters your account, the fund converts it into units based on the current unit price for your chosen investment option
- The unit price reflects the underlying value of the assets in that option (shares, property, bonds, etc.)
- As the value of those assets rises and falls, so does the unit price
- Your account balance = number of units × current unit price
Example: If you hold 1,000 units and the current unit price is $2.50, your balance is $2,500. If markets rise and the unit price moves to $2.75, your balance becomes $2,750 — without any new contributions.
When fees are deducted or you switch investment options, units are bought or sold at the current unit price on the transaction date.
Step 3 — Your Money Is Invested
Investment Options
Your super fund invests your money in a mix of asset classes. Most funds offer a range of options:
| Investment option | Typical allocation | Expected risk level | Best suited for |
|---|---|---|---|
| High Growth | ~95% growth assets | High | 20+ year horizon |
| Growth | ~75–85% growth assets | Medium–High | 10–20 year horizon |
| Balanced | ~60–75% growth assets | Medium | 5–10 year horizon |
| Conservative Balanced | ~40–60% growth assets | Medium–Low | 3–7 year horizon |
| Conservative / Capital Stable | ~20–40% growth assets | Low–Medium | Short horizon |
| Cash | Cash and term deposits | Very Low | Capital preservation |
Growth assets include Australian and international shares and listed property (REITs). They offer higher expected long-term returns but can fall significantly in value during downturns.
Defensive assets include bonds, cash, and fixed income. They are more stable but offer lower long-term returns.
MySuper — The Default Option
If you don’t make an investment choice, your employer contributions are placed into your fund’s MySuper product. This is a simple, low-fee option regulated by APRA. Many MySuper products use a lifecycle approach — automatically shifting you from high growth when you are young towards more conservative options as you approach retirement.
How to Change Your Investment Option
You can switch investment options at any time via your fund’s online portal or app. Switches are processed at the next available unit price. There is generally no fee for switching options, though you should check your fund’s PDS (Product Disclosure Statement).
Important: switching out of a growth option during a market downturn locks in losses — the decision of when and whether to switch is one worth discussing with a financial adviser.
Step 4 — Your Money Grows Through Compounding
The Power of Compound Returns
The core mechanism that makes super so powerful over a long career is compounding — earning returns not just on your contributions, but on your accumulated returns as well.
Here’s a simplified example of how compounding works inside super. Assumptions: $50,000 starting balance, $10,000/year in new contributions, 7% annual return after fees and tax.
| Year | Balance (start) | Contributions | Return (7%) | Balance (end) |
|---|---|---|---|---|
| 1 | $50,000 | $10,000 | $4,200 | $64,200 |
| 5 | ~$82,000 | $10,000 | ~$6,440 | ~$98,440 |
| 10 | ~$130,000 | $10,000 | ~$9,800 | ~$150,000 |
| 20 | ~$263,000 | $10,000 | ~$19,110 | ~$292,000 |
| 30 | ~$472,000 | $10,000 | ~$33,740 | ~$516,000 |
These figures are illustrative only. Assumes a constant 7% return — actual returns will vary. Past performance is not a reliable indicator of future performance.
Notice how by year 30, the investment return in a single year ($33,740) exceeds the entire annual contribution ($10,000). That is compounding at work.
Fees Matter More Than You Think
Because super compounds over decades, fees that seem small have an outsized impact. An extra 0.5% in annual fees on a $200,000 balance costs $1,000 per year — but over 20 years, the compounded cost of that fee drag can reduce your retirement balance by tens of thousands of dollars.
The MoneySmart fee calculator can help you estimate the long-term impact of fees.
Step 5 — Tax Treatment at Each Stage
Superannuation is structured to be tax-effective compared to investing outside super.
Contributions Tax
Concessional contributions (employer SG + salary sacrifice + deductible personal contributions) are taxed at 15% inside the fund. If your marginal income tax rate is 32.5%, 37%, or 45%, you are saving tax on every dollar that goes into super via concessional contributions.
High-income earners (income + concessional contributions over $250,000) pay an additional 15% — total 30% — via Division 293 tax.
Non-concessional contributions carry no entry tax (you’ve already paid income tax on them).
Earnings Tax
Inside super in accumulation phase, investment earnings (income and capital gains) are taxed at a maximum of 15%. Capital gains on assets held more than 12 months are taxed at an effective rate of 10% (after the one-third CGT discount available to complying super funds).
In pension phase (retirement), investment earnings are generally taxed at 0% — this is one of the most significant tax concessions in the Australian tax system.
Important exception: From 1 July 2025, Division 296 tax applies an additional 15% to investment earnings attributed to super balances exceeding $3 million. This means the effective tax rate on those earnings rises from 0% to 30%. This affects a small minority of Australians with very large super balances.
Withdrawals Tax
Withdrawals from super at age 60 or over are generally tax-free for most members — both the lump sum and income stream payments. Withdrawals before age 60 may be taxed depending on your age and the tax components of your super balance.
Step 6 — Accessing Your Super
Preservation Age
Super is designed to be locked away until you retire. The main access point is reaching your preservation age, which is 60 for anyone born after 30 June 1964.
At preservation age, you can access your super if you have retired. Once you turn 65, you can access your super regardless of your employment status.
How You Can Draw Down Your Super
Once you can access your super, you have several options:
Lump sum — withdraw some or all of your balance as a one-off payment.
Account-based pension (ABP) — convert your super into an income stream that pays you a regular amount. There is a minimum annual drawdown amount set by the ATO based on your age:
| Age | Minimum annual drawdown (% of balance) |
|---|---|
| Under 65 | 4% |
| 65–74 | 5% |
| 75–79 | 6% |
| 80–84 | 7% |
| 85–89 | 9% |
| 90–94 | 11% |
| 95+ | 14% |
There is no maximum drawdown — you can withdraw as much as you like (within your balance). Most retirees combine a regular income stream with occasional lump sums.
Transition to Retirement (TTR) — once you reach preservation age (60), you can start drawing down your super via a TTR income stream while still working. There are limits on how much you can withdraw annually (maximum 10% of your balance per year) under a TTR.
Transfer Balance Cap
There is a cap on how much you can hold in tax-free pension phase. For FY2025–26, this cap is $2.0 million. Super above this amount must stay in accumulation phase (where earnings are taxed at 15%) or be withdrawn.
Frequently Asked Questions
Does super earn interest? Super is not a savings account — it earns investment returns, not a fixed interest rate. Returns vary depending on your investment option and market conditions. Balanced options have historically returned around 6–8% per year over the long term, but returns fluctuate and are not guaranteed. Past performance is not a reliable indicator of future returns.
What happens to my super if I change jobs? Your super stays in your existing fund. Since 1 November 2021, super is “stapled” to you as a worker — your new employer must contribute to your existing fund unless you nominate a different one. This prevents multiple duplicate accounts being opened.
How do I know how much super I have? Log into myGov and link your ATO account — you can see all your super accounts in one place. Your fund also sends an annual statement.
Can I have more than one super account? Yes. Many Australians have multiple accounts from previous jobs. You can consolidate them via myGov or through your fund’s website. Check you won’t lose insurance cover before rolling over.
What is a Product Disclosure Statement (PDS)? A PDS is a legal document your super fund must provide that explains how the fund works, its fees, its investment options, and your rights as a member. You should read your PDS when joining or changing investment options.
Key Takeaways
- Your employer pays 12% of your wages into super on top of your pay (FY2025–26 rate)
- Money is invested using unit pricing — your balance rises and falls with markets
- Super is taxed at 15% on contributions and earnings in accumulation — much lower than most people’s marginal tax rate
- Compounding returns over a 40-year career can dramatically multiply your savings
- You can generally access super from age 60 if you have retired, or at age 65 regardless of work status
- The Transfer Balance Cap ($2.0M in FY2025–26) limits how much you can hold in tax-free pension phase
Related Guides
- Superannuation Guide Australia (2026)
- Super Contribution Limits Australia
- Salary Sacrifice Super Explained
- How to Choose a Super Fund
- When Can I Access My Super?
- ATO: Superannuation for individuals
This article provides general information about how superannuation works in Australia. It does not constitute financial advice and does not take into account your personal circumstances. For advice tailored to your situation, speak with a licensed financial adviser. You can find one through the ASIC financial advisers register or MoneySmart.