Do sole traders have to pay super for themselves?

No. Unlike employers who must pay super for employees, sole traders have no legal obligation to contribute to their own super. However, failing to contribute means you'll reach retirement with little or no super savings. The tax benefits of voluntary contributions are significant — most sole traders save thousands per year in tax by making concessional contributions.

What is the super contribution cap for sole traders in 2025–26?

The concessional (before-tax, tax-deductible) cap is $30,000 per year. The non-concessional (after-tax) cap is $120,000 per year, with a bring-forward option allowing up to $360,000 in a single year. Since sole traders have no employer contributions, the entire $30,000 concessional cap is available for personal deductible contributions.

What is the Notice of Intent to Claim a Deduction for super?

It's a form (under Section 290-170) that you must lodge with your super fund to make your personal contribution tax-deductible. Without it, your contribution is treated as non-concessional and you get no tax deduction. You must lodge it before submitting your tax return and before rolling over or withdrawing the money. This is the most common mistake sole traders make with super.

Can sole traders use catch-up super contributions?

Yes. If your total super balance is under $500,000, you can carry forward unused concessional cap amounts from the previous five financial years. This is particularly valuable for sole traders who had lean years and couldn't contribute. In a strong year, you could potentially contribute over $100,000 as concessional contributions and claim the full amount as a tax deduction.

How much tax can a sole trader save by contributing to super?

A sole trader earning $120,000 who contributes $30,000 to super can save approximately $6,800 in tax per year. The saving comes from the difference between your marginal tax rate (up to 45% + Medicare Levy) and the 15% contributions tax inside super. The higher your income, the larger the tax benefit per dollar contributed.

Superannuation for Sole Traders: How to Stop Leaving Thousands on the Table (2026)

If you're a sole trader, nobody pays super for you. There's no employer making contributions every pay cycle, no default fund ticking away in the background. Unless you act deliberately, you'll reach retirement with nothing in super at all. The good news: the tax benefits of contributing to super as a sole trader are genuinely significant — and most sole traders leave thousands of dollars on the table every year by not using them.

Important: This guide is general information only and does not constitute financial advice. Superannuation rules change frequently. Consider your own circumstances and seek professional advice before making contribution decisions.

The Problem: No Employer Means No Super (By Default)

Employees in Australia receive compulsory super contributions of 12% of their ordinary time earnings from their employer — currently $12,000 per year on a $100,000 salary. Over a 30-year career, that adds up to hundreds of thousands of dollars before investment growth.

Sole traders get none of this automatically. If you earn $100,000 as a sole trader and contribute nothing to super, your retirement savings gap compared to an equivalent employee grows by roughly $12,000 every single year — plus the compounding investment returns you're missing.

After 20 years of self-employment with no super contributions, you could be $400,000–$600,000 behind an employee on the same income. That's not a gap you can easily close later.

How Super Contributions Work for Sole Traders

As a sole trader, you make "personal contributions" to super rather than employer contributions. You transfer money from your bank account (or business account) directly to your super fund. These contributions can be either concessional (before-tax) or non-concessional (after-tax), and the distinction matters enormously for your tax outcome.

Concessional (Before-Tax) Contributions

Concessional contributions are taxed at 15% inside super — compared to your marginal tax rate outside super. For most sole traders earning $50,000+, this creates an immediate tax saving.

The annual concessional contributions cap for 2025–26 is $30,000. As a sole trader with no employer contributions, your entire $30,000 cap is available for personal deductible contributions.

Tax Saving Example: Sole Trader Earning $120,000

Without super contribution: Taxable income of $120,000. Tax payable (including Medicare Levy) = approximately $31,867.

With $30,000 concessional contribution: Taxable income drops to $90,000. Tax payable = approximately $20,567. Plus 15% contributions tax inside super = $4,500.

Net tax saving: $6,800 per year. That's $6,800 more in your pocket (via super) instead of going to the ATO.

The higher your marginal tax rate, the bigger the benefit. At the 37% bracket ($135,001–$190,000), every dollar contributed to super instead of taken as income saves you 22 cents in tax (37% minus 15%). At the 45% bracket ($190,001+), the saving is 30 cents per dollar.

Division 293 tax: If your income plus concessional super contributions exceed $250,000, an additional 15% tax applies to the contributions that push you over the threshold — effectively doubling the contributions tax to 30%. This reduces the benefit but doesn't eliminate it.

Non-Concessional (After-Tax) Contributions

Non-concessional contributions are made from money you've already paid tax on. They don't give you a tax deduction, but the money grows inside super at a concessionally taxed rate (15% on earnings inside super, compared to your marginal rate outside).

The annual non-concessional cap for 2025–26 is $120,000. You can also use the "bring-forward rule" to contribute up to $360,000 in a single year (using the next two years' caps), which can be useful if you sell a business asset or have a particularly good year.

Non-concessional contributions make most sense once you've maxed out your $30,000 concessional cap and still have surplus cash to invest for retirement.

The Critical Step Most Sole Traders Miss

Making a personal contribution to super does not automatically make it tax-deductible. To claim a concessional deduction, you must:

Lodge a "Notice of Intent to Claim a Deduction" (Section 290-170 form) with your super fund — before you lodge your tax return for that financial year, and before you roll over or withdraw the money.
Receive an acknowledgement from your super fund confirming they've received and processed your notice.
Then claim the deduction in your tax return.

If you skip the Notice of Intent, your contribution is treated as non-concessional — no tax deduction, and it counts against your non-concessional cap instead. This is one of the most common and expensive mistakes sole traders make. Set a calendar reminder for May each year to lodge this notice.

Catch-Up Contributions: Using Unused Cap Space

Since 1 July 2018, if your total super balance is under $500,000, you can carry forward unused concessional cap amounts from the previous five financial years. This is particularly valuable for sole traders who may have had lean years where they couldn't contribute much.

Catch-Up Example

Say you contributed nothing to super in 2021–22, 2022–23, and 2023–24 (when the cap was $27,500 each year). You contributed $5,000 in 2024–25 (cap was $30,000).

Unused cap space: $27,500 + $27,500 + $27,500 + $25,000 = $107,500.

In 2025–26, you could contribute up to $30,000 (current year) + $107,500 (carried forward) = $137,500 as concessional contributions — all tax-deductible.

On a taxable income of $200,000+, this could save you over $40,000 in tax in a single year.

This is an enormously powerful tool for sole traders who had a bad run and are now having a strong year. It's essentially a way to "backfill" your super and claim deductions you missed.

How Much Should a Sole Trader Contribute?

There's no single right answer, but here are practical guidelines based on income level:

Sole Trader Income	Suggested Contribution	Rationale
Under $45,000	$0–$5,000	Tax benefit is minimal at lower brackets. Prioritise emergency fund and debt repayment first.
$45,000–$90,000	$5,000–$15,000	Good tax benefit at 32.5% marginal rate. Aim for at least employee-equivalent (12%).
$90,000–$135,000	$15,000–$25,000	Strong tax benefit at 37% bracket. Prioritise maxing concessional cap.
$135,000+	$25,000–$30,000	Maximum tax benefit. Strongly consider maxing the full $30,000 cap every year.

A practical approach: set up a separate "super savings" bank account and transfer a fixed percentage (10%–15%) of every invoice payment into it. Make a lump-sum contribution to your super fund quarterly or before EOFY.

Super vs. Investing Outside Super

Super locks your money away until preservation age (currently 60). As a sole trader, you might feel uneasy about money you can't access during a downturn. This is a valid concern — but it doesn't mean you should avoid super entirely.

Super vs. Outside Super: Tax Comparison on $10,000 Invested

Inside super (concessional contribution): You contribute $10,000 pre-tax. 15% contributions tax = $1,500. Investment balance starts at $8,500. Earnings taxed at 15%. In retirement (after age 60), withdrawals and earnings are completely tax-free.

Outside super: You pay income tax first. At the 37% bracket + 2% Medicare Levy, you keep $6,100 of the $10,000. Investment earnings are taxed at your marginal rate (reduced for capital gains held 12+ months). Withdrawals are always taxable.

Over 20 years at 7% annual return: The super investment grows to approximately $28,700 (tax-free in retirement). The outside-super investment grows to approximately $18,200 (still subject to CGT on sale).

The right approach for most sole traders is both: contribute enough to super to capture the tax deduction (at least to the point where the marginal tax benefit is meaningful), and maintain accessible savings and investments outside super for business resilience and flexibility.

Choosing the Right Super Fund

Many sole traders are still in the default fund they were assigned at a previous job. It's worth reviewing whether that fund is actually serving you well. Key factors to compare:

Fees: Total fees (admin + investment) should ideally be under 1.0% of your balance. Some industry funds charge 0.5%–0.7%. High fees compound against you over decades.
Investment options: Check that the fund offers a range of investment choices, including low-cost indexed options. If you want to match a simple ETF-style approach inside super, look for a fund with a passive or indexed option.
Insurance: Most super funds include default life and TPD insurance. As a sole trader without employer-provided cover, this may be your only safety net — but check that the premiums aren't eroding your balance excessively.
Performance: Compare after-fee returns over 5–10 years using the ATO's YourSuper comparison tool. Avoid chasing short-term performance — consistency matters more.

Government Co-Contribution: Free Money for Lower-Income Sole Traders

If your total income is under $60,400 (2025–26), the government will match your personal non-concessional (after-tax) super contributions up to a maximum of $500. The full $500 applies if your income is $45,400 or less and you contribute at least $1,000.

This is a 50% instant return on your money. For sole traders in the early years of their business with lower income, it's one of the best deals available. You don't need to apply — the ATO automatically calculates and pays it to your super fund after you lodge your tax return.

Note: The co-contribution is only available on non-concessional (after-tax) contributions. If you claim a tax deduction for the contribution (making it concessional), it won't qualify for the co-contribution.

Spouse Contributions: A Strategy for Sole Trader Couples

If your spouse earns under $40,000, you can contribute to their super fund and receive a tax offset of up to $540. The maximum offset applies when you contribute $3,000 and your spouse's income is $37,000 or less.

For sole trader households where one partner runs the business and the other works part-time or is the primary carer, this is worth considering. It also helps build a more balanced retirement position across both partners.

End-of-Financial-Year Super Checklist for Sole Traders

1Check your year-to-date contributions via your super fund's online portal. Confirm how much concessional and non-concessional room you have remaining.
2Calculate your carry-forward cap space if your super balance is under $500,000. Log in to myGov > ATO > Super > Carry-forward concessional contributions to see your available unused amounts.
3Make your contribution before 30 June. The money must be received by your super fund (not just sent) before the end of the financial year. Allow 3–5 business days for processing. Aim to transfer by 20 June at the latest.
4Lodge your Notice of Intent to Claim a Deduction with your super fund. Do this after the contribution lands but before you lodge your tax return.
5Wait for the fund's acknowledgement letter before claiming the deduction in your tax return.
6If eligible, make a separate $1,000 non-concessional contribution to trigger the government co-contribution (income under $60,400).
7Consider a spouse contribution if your partner earns under $40,000 and you have cash available.

Common Mistakes to Avoid

Forgetting the Notice of Intent: Without it, your contribution isn't deductible. This is by far the most common and costly mistake.
Contributing too late: If your super fund doesn't receive the money before 30 June, it counts in the next financial year. BPAY can take 2–3 days; direct transfers can take up to 5 business days.
Exceeding the concessional cap: Contributions over the $30,000 cap are included in your assessable income and taxed at your marginal rate plus an excess concessional contributions charge. This effectively negates the tax benefit entirely.
Ignoring super during lean years: Even small contributions ($50–$100/month) during quiet periods maintain the habit and accumulate unused cap space for catch-up contributions later.
Having multiple super accounts: Sole traders who previously worked as employees often have 2–3 old super accounts with duplicate fees and insurance premiums. Consolidate into one fund (but check you won't lose beneficial insurance before rolling over).

A Realistic Super Strategy for a Sole Trader Earning $100,000

Income: $100,000 net business income.

Step 1: Set aside 15% of each payment received ($15,000/year) into a "super savings" bank account.

Step 2: In May, review total business income for the year and decide on final contribution amount. In a good year, contribute up to $25,000–$30,000. In a lean year, contribute whatever you've saved — even $5,000 helps.

Step 3: Transfer to super fund by 20 June.

Step 4: Lodge Notice of Intent.

Step 5: Claim the deduction in your tax return.

Result at $20,000 contribution: Tax saving of approximately $4,100/year. Over 25 years at 7% return inside super, that $20,000/year becomes roughly $1.26 million — the difference between a comfortable retirement and relying solely on the Age Pension.

The Bottom Line

Super is the single most tax-effective wealth-building tool available to Australian sole traders — yet most sole traders either ignore it completely or contribute far less than they should. The absence of an employer making contributions for you isn't just an inconvenience; it's a structural disadvantage that compounds over decades.

The fix doesn't require large amounts of money. It requires a system: a percentage set aside from every payment, a contribution made before 30 June each year, and a Notice of Intent lodged before your tax return. Do those three things consistently and you'll be ahead of the vast majority of self-employed Australians.

Use our Income Tax Calculator to model the impact of super contributions on your taxable income, and see exactly how much you could save by contributing before 30 June.