SMSFs: What happens if you exceed your super caps

Shane Lee • February 7, 2024

The rules around making some types of super contributions have been relaxed in recent years, so it’s worth exploring the different opportunities available to you before making a large contribution. i

What are contribution caps?

Given the tax-effective environment of Australia’s super system, there are annual limits on how much you can contribute each financial year.

The two main types of contributions are  concessional (before-tax)  and  non-concessional (after-tax)  contributions.

Concessional contributions include employer Super Guarantee contributions, salary sacrifice and personal tax-deductible contributions, with the general contributions cap for 2023-24 being $27,500. In  some situations, you may be permitted to contribute more if you have unused cap amounts from previous financial years.

If you’re a SMSF member, you may be able to make a concessional contribution in one financial year and have it count towards your concessional cap in the following financial year.

Non-concessional contributions cap

If you use after-tax money to make a super contribution, this is classes as a non-concessional contribution and there is no tax payable when the contribution is paid into your super account.

The general non-concessional contributions cap in 2023-24 is $110,000 provided you meet all the eligibility criteria, such as your  Total Super Balance  being below your personal limit. Your  personal cap  may be different.

If you’re age 55 or older, the once-only downsizer contribution cap is $300,000 per person ($600,000 for a couple). These contributions from the sale of your main residence don’t count towards your annual non-concessional cap.

Exceeding your contribution caps

There are different rules for super contributions that exceed the annual caps, depending on the type of contribution.

If you go over the annual concessional cap, your contribution is counted as personal assessable income and taxed at your marginal tax rate, with a 15 per cent tax offset to reflect the tax already paid by your super fund. Your increased assessable income may also affect any Medicare levy, Centrelink benefits and child support obligations.

The excess contributions can be withdrawn from your super fund, but if you choose not to withdraw them, the excess is counted towards your non-concessional contributions cap.

If you don’t or can’t elect to release excess contributions, you could end up paying up to 94 per cent in tax. ii

Exceed your non-concessional cap

Contributions exceeding your annual non-concessional (after-tax) cap are taxed at 45 per cent plus the 2 per cent Medicare levy. This is in addition to the tax already paid on this money.

Before the ATO applies this tax, you are given the opportunity to withdraw the excess non-concessional contributions, plus a notional amount to reflect the investment earnings.

You pay tax on the notional earnings just like personal income, less a 15 per cent offset.

Withdrawing excess contributions

Like most things to do with tax and super, the process for withdrawing excess contributions is fiddly.

If you have an excess concessional contribution, the ATO sends you a determination letter with details of what you need to do, plus an income tax notice of assessment.

You have 60 days to decide whether to have the excess concessional contribution refunded by the super fund and tax deducted by the ATO, or to pay the tax personally and leave the contribution in your account.

Refunding excess non-concessional contributions

For excess non-concessional contributions, the ATO assumes you wish to have your excess contributions and notional earnings refunded in order to avoid paying 47 per cent on them.

The default process is the ATO automatically issues a release authority to your fund and directs it to deduct the additional tax owing and return the leftover amount to you.

If you wish to nominate a specific fund from which the refund should be paid, or leave the excess in your account and pay the tax personally, you must make an election within 60 days of the initial notice.

Call us today to assess how the super contribution caps may affect you.

The information in this article does not take into account your objectives, needs and circumstances. We recommend that you obtain investment and taxation advice specific to your investment objectives, financial situation and particular needs before making any investment decision or acting on any of the information contained in this document. Subject to law, Capstone Financial Planning nor their directors, employees or authorised representatives gives any representation or warranty as to the reliability, accuracy or completeness of the information; or accepts any responsibility for any person acting, or refraining from acting, on the basis of the information contained in this document. Principal Wealth Management Pty Ltd trading as BMO Financial Solutions ABN 53 109 336 601 is a Corporate Authorised Representative (CAR 277821) of Capstone Financial Planning Pty Ltd ABN 24 093 733 969 Australian Financial Services Licence (AFSL) No. 223135.

By Nikki Ashurst • November 2, 2026
Many Australians don't know how their super fund has performed or what it invests in. Are you one of them? Here's what to check and why it matters. Do you know how your super fund performed over the last two years? Many Australians don’t and are working towards their financial future without fully understanding one of their most important assets and without a clear plan for how their super may support them in retirement. That's not surprising, as many people view super as something that should run quietly in the background while they're busy with careers, families and everything else that life throws at them. But when you’re not sure what’s happening behind your balance, it’s harder to know whether you’re on track, whether your current approach reflects your goals or what opportunities might be available to help you make the most of what you’ve built so far. Your super isn't sitting in an account, it's invested Super is invested by a fund on your behalf across a mix of assets, with those investments working to grow your balance over time. Those include: Shares Ownership in Australian and international publicly listed companies. Their value can rise and fall, sometimes substantially over short periods but shares can provide capital growth over the long term. Property and infrastructure Real assets like office buildings, shopping centres, airports and energy networks. They can produce income and don't always behave in the same way as share markets, helping diversify investment holdings. Fixed interest and bonds Lending to governments and companies in return for interest. They can provide regular income and be steadier than shares, although returns and risk vary depending on the investment. Cash Generally, the most stable and lowest risk investment type. It can provide stability and faster access to money but typically offers lower longer term return potential. The investment option you choose determines the mix of assets held in your super based on your risk appetite. Most super funds offer options from conservative to high growth. If you’re young, a growth option with a higher exposure to growth assets like shares could offer higher returns over time – but it also comes with higher risk. As retirement nears, you might want to consider a more conservative approach with more defensive assets, like bonds for example to protect your savings. If you've never made a choice, you're probably in your fund's default option, which is designed to suit a broad membership. It’s worth knowing whether the mix you're in matches your circumstances and goals, including how far you are from retirement. Why performance alone is not a true comparison If you're thinking about how your super compares, returns are often where people start. The trouble is that a return figure means nothing without context: What it's being compared to Growth and conservative options invest differently and with different levels of risk. Compare like with like or the comparison may not be genuine. The comparison period A single year can be heavily influenced by short term market conditions. Super is measured in decades, so five, seven and ten year returns tell you far more about whether a fund is consistently doing its job, albeit not a predictor of future performance. Fees and tax Published returns should reflect investment fees, costs and tax but administration fees may be charged separately from your balance. Two funds quoting the same return can leave you in meaningfully different places once all fees are accounted for. Then there are the things that returns can't show you at all. For example, what insurance is attached to your account and what it's costing you, whether the fund offers guidance, tools and advice or simply sends a statement once a year. Another consideration maybe the level of support available when you need it. When comparing funds, it's worth looking at the full picture, including performance, fees, investment options, retirement support and member benefits. What today’s decisions mean tomorrow To understand how your super stacks up, start here: Find your investment option It's on your annual statement and in your online account. Look at what's in it Your fund publishes the asset allocation (shares, cash etc.) for each investment option. Check the long-term return for that option Focus on five and ten year returns, not just last year and compare them with equivalent options. Understand the total cost Add together administration fees, investment fees and insurance premiums as an annual dollar figure. Comparing super is about working out which option will perform best for you. Before you jump in, it’s worth understanding what's behind the numbers so you can make decisions based on more than a headline return. Knowing where you stand is the first step A super balance tells you where you are today. Understanding how your super is invested, how it compares and whether it's aligned with your goals helps show whether you're heading in the right direction. Source: MLC The information in this article does not take into account your objectives, needs and circumstances. We recommend that you obtain investment and taxation advice specific to your investment objectives, financial situation and particular needs before making any investment decision or acting on any of the information contained in this document. Subject to law, Capstone Financial Planning nor their directors, employees or authorised representatives gives any representation or warranty as to the reliability, accuracy or completeness of the information; or accepts any responsibility for any person acting, or refraining from acting, on the basis of the information contained in this document. Principal Wealth Management Pty Ltd trading as BMO Financial Solutions ABN 53 109 336 601 is a Corporate Authorised Representative (CAR 277821) of Capstone Financial Planning Pty Ltd ABN 24 093 733 969 Australian Financial Services Licence (AFSL) No. 223135.
By Jude Schofield • October 7, 2026
More Australians are choosing to take direct control of their retirement savings by establishing a self-managed super fund (SMSF) and according to the SMSF Association, Aussies now see their super as an important part of building and managing their overall wealth.