When you start your first job in Australia, your employer pays superannuation into a fund on your behalf. Even at 18, super is working for you — and the choices you make now (or don’t make) can have a surprisingly large impact on your retirement balance decades from now.
How Super Works at 18
When you earn more than $450 per month (this threshold was abolished in July 2022 — all employees now receive SG regardless of earnings), your employer must pay 11.5% of your ordinary-time earnings into a superannuation fund (FY2024–25 rate, rising to 12% in FY2025–26).
For example:
- Casual job, 15 hours/week at $22/hour = ~$1,320/month before tax
- Super contribution: $1,320 × 11.5% = $151.80/month paid by your employer into your super
You don’t see this money in your pay packet — it goes directly to your super fund.
Why Starting at 18 Matters
The single biggest advantage of starting super early is time in the market. Compounding — earning returns on previous returns — grows exponentially over decades.
A simple illustration:
| Starts contributing at | Employer SG assumed | Balance at 67 (est., 7% p.a.) |
|---|---|---|
| 18 | 11.5–12% SG on $40,000/year salary | ~$880,000 |
| 28 | Same | ~$445,000 |
| 38 | Same | ~$220,000 |
Illustration only — actual returns vary. Past performance is not a reliable indicator of future returns.
Starting 10 years later roughly halves the final balance. The first decade of super — when balances are small and contributions seem insignificant — is actually the most powerful decade for compounding.
What to Do With Your Super at 18
1. Find your super and check it exists
Many young Australians start work and never think about super until their 30s. Log in to myGov and link the ATO to see all super accounts registered to your TFN.
2. Provide your TFN to your fund
Without your TFN, your fund withholds tax at the top marginal rate on contributions. Always give your fund your TFN.
3. Don’t have multiple accounts
Every new job can create a new super account. Multiple accounts mean multiple sets of fees eating into your balance. Use ATO SuperMatch via myGov to check for duplicates.
4. Check your investment option
Most young Australians are defaulted into a MySuper or lifecycle product. At 18, with 45+ years until preservation age, a growth or high-growth investment option typically aligns better with a long time horizon — though this involves more volatility. Understand what you’re invested in.
5. Consider insurance
Default super accounts often include life and TPD insurance from around age 25 (or earlier at some funds). Check what cover you have and whether you need it at your age.
How Much Super Should You Have at 18?
Not much — and that’s fine. If you’ve been working for a year earning $40,000, you may have $4,000–$5,000. The balance at 18 matters far less than building good habits.
See How Much Super Should I Have at My Age? for benchmarks.
Frequently Asked Questions
Can I access my super at 18 if I need money? No. Super is preserved until you reach preservation age (60 for most Australians born after 1964) and meet a condition of release. Accessing super early without meeting a condition is illegal.
What if my employer isn’t paying my super? You can report unpaid super to the ATO via their online reporting tool. The ATO has powers to recover unpaid SG from employers, including charging the Super Guarantee Charge (SGC) — see Super Guarantee Charge explained.
Should I make extra contributions at 18? Only if you can afford it without financial stress. The most important thing at 18 is to not lose track of your super and avoid paying multiple sets of fees. Extra contributions become more valuable as your income grows.
For more: Super Contribution Limits, How to Choose a Super Fund, Consolidate Super. For advice tailored to your situation, speak with a licensed financial adviser via MoneySmart.