What is an SMSF? A plain-English guide to self-managed super funds

That control is the appeal, and also the catch. This guide explains what an SMSF is, how one works, what it can invest in, what trustees are responsible for, and how to weigh up whether the effort is worth it — in plain English, with figures in Australian dollars.

What is an SMSF?

An SMSF is a super fund that you set up and manage yourself, where every member is also a trustee responsible for running it. It exists for one purpose — to provide retirement benefits to its members — and it must follow the same superannuation and tax laws as any other fund.

Self-managed super is a large and growing part of the system. As at the March 2026 quarter, there were 672,805 SMSFs in Australia holding around $1.06 trillion in assets on behalf of 1,239,977 members (source: ATO SMSF quarterly statistical report, March 2026, published June 2026). The main difference from a big APRA-regulated fund is simple: in an SMSF, the investment decisions are yours, not a fund manager's.

How does an SMSF work?

An SMSF works as a trust: members contribute to the fund, the trustees invest that money according to a written investment strategy, and the fund pays benefits to members in retirement — all under ATO oversight and an annual independent audit.

In practice the cycle looks like this. You establish the fund with a trust deed and appoint trustees. Members make contributions (or roll over existing super). The trustees invest the money in line with a documented investment strategy. Each year the fund is audited by an approved SMSF auditor, lodges an annual return, and reports to the ATO. When members reach preservation age and meet a condition of release, the fund pays out benefits.

The trustee role is what sets an SMSF apart from the trust-share-trading or company accounts many investors use. For a wider view of how different structures compare, see the different types of share trading accounts in Australia.

Who regulates SMSFs?

The ATO regulates SMSFs. This is different from industry and retail super funds, which are regulated by APRA. The ATO administers the tax and compliance rules for SMSFs, and trustees deal directly with it for registration, annual returns and any compliance issues. You can read the ATO's own overview on its self-managed super funds hub.

Individual trustees vs a corporate trustee

An SMSF can be structured with individual trustees or a corporate trustee. With individual trustees, each member is personally appointed as a trustee (a fund needs at least two individual trustees). With a corporate trustee, a company acts as trustee and each member is a director of that company. A corporate trustee costs more to set up and maintain but can make it simpler to add or remove members and to keep fund assets clearly separated. Note that some states and territories impose restrictions on the number of individual trustees a trust can have — sometimes fewer than six — so if you're planning a multi-member fund with individual trustees, check your jurisdiction's rules with a licensed adviser or SMSF specialist. Which structure suits you is a decision for a licensed adviser or SMSF specialist, not a one-size-fits-all rule.

What can an SMSF invest in?

An SMSF can invest across a broad range of assets — Australian and international shares, exchange-traded funds (ETFs), managed funds, cash and term deposits, and in some cases direct property — provided each investment fits the fund's strategy and the sole purpose of providing retirement benefits. Across the sector, listed shares make up about 26% of SMSF assets and cash and term deposits around 16% (ATO, March 2026 quarter).

Shares and ETFs are where a low-cost trading platform matters, because trading costs come straight out of your retirement savings. With an SMSF trading account from Selfwealth by Syfe, an SMSF can trade Australian shares and ETFs on the ASX and TMX Australia Exchange (formerly Cboe Australia), plus US shares and ETFs listed on the NYSE and Nasdaq — all at a flat $9.50 brokerage per trade, with no account-keeping fees.

Australian-listed shares and ETFs held this way are CHESS-sponsored, which means the fund holds them directly under its own Holder Identification Number (HIN) rather than through a custodian. For trustees, that direct legal ownership and clean paper trail is useful at audit time. If you're new to the concept, here's how CHESS sponsorship compares to a custodian model. (CHESS sponsorship applies to Australian-listed securities only.)

Many SMSF trustees invest for the long term and top up regularly. Auto-Invest lets you schedule recurring orders into chosen shares or ETFs — a dollar-cost-averaging approach that can suit a fund building a position steadily over time. And because franking credits can be relevant inside super, it's worth understanding how franking credits work. Some trustees also consider direct property; the rules there are strict, so read our guide on using an SMSF to invest in property before going down that path.

SMSF vs an industry or retail super fund

The core trade-off is control versus convenience: an SMSF gives you full say over how your super is invested, but you take on the time, cost and legal responsibility that a large fund would otherwise handle for you.

¹ SMSF trustees spend on average more than eight hours a month — over 100 hours a year — managing their fund (Investment Trends SMSF Investor Report, cited by ASIC's Moneysmart, data as at 2021). Figures above are general and current as at September 2026.

SMSF trustee responsibilities

As an SMSF trustee you are legally responsible for running the fund within the law — and that responsibility stays with you even if you pay an accountant, adviser or administrator to help. According to Moneysmart, trustees are "always legally responsible for the fund's decisions."

Key duties include:

• The sole purpose test — the fund must be maintained solely to provide retirement benefits to members (or their dependants), not to give members a present-day benefit.

• A written investment strategy — trustees must prepare, document and regularly review a strategy that considers risk, return, diversification, liquidity and members' needs.

• An annual independent audit — every SMSF must be audited each year by an ATO-approved SMSF auditor before lodging its annual return.

• Record-keeping and reporting — keeping accurate records, valuing assets, and lodging with the ATO on time.

• Keeping fund assets separate — SMSF money and assets must be kept apart from members' personal or business assets.

It's also worth knowing the trade-offs: SMSF members generally cannot access the Australian Financial Complaints Authority (AFCA) or government compensation if the fund suffers loss through theft or fraud. Trustees are legally responsible for the fund's compliance with superannuation law, so tax and compliance questions should go to a registered tax agent or SMSF specialist.

Learn more: SMSF support for accountants and administrators

How to set up an SMSF

Setting up an SMSF involves establishing the fund and its trustee structure, registering it with the ATO, opening a bank account, documenting an investment strategy, and rolling over or contributing super — usually with help from an SMSF specialist. In outline, the steps are:

1. Decide on the trustee structure — individual trustees or a corporate trustee.

2. Establish the trust and trust deed — the legal document that sets out how the fund operates.

3. Register with the ATO — obtain an ABN and TFN and elect for the fund to be regulated (generally within 60 days of establishment).

4. Open a dedicated SMSF bank account — to receive contributions, rollovers and income, and to pay expenses.

5. Prepare an investment strategy — documented and tailored to the members.

6. Roll over existing super or make contributions — then begin investing in line with the strategy.

Because each of these steps has legal and tax consequences, most trustees set up their fund with a registered tax agent, accountant or SMSF specialist rather than going it alone. ASIC's Moneysmart SMSF guide is a good neutral starting point, and once the fund is running you can connect an SMSF trading account. See how Selfwealth SMSF accounts work for trustees.

How much do you need, and what does it cost?

There is no legal minimum balance to start an SMSF, but the running costs mean an SMSF generally makes more sense at higher balances where those fixed costs are a smaller share of the fund. Typical ongoing costs include accounting and tax work, the annual independent audit, insurance, and the ATO's annual supervisory levy; setup costs apply at the start.

Where a low-cost platform helps is on the investing side. Brokerage is charged every time the fund buys or sells, so it compounds over the life of the fund. On Selfwealth, brokerage is a flat $9.50 per trade whether you're trading a $2,000 parcel or a $20,000 one. Building a starter portfolio of, say, four ETFs would cost 4 × $9.50 = $38 in brokerage — the same $9.50 flat rate applies to Australian and US trades, with no ongoing account-keeping fee. For the exact setup, audit and levy costs that suit your situation, speak with a registered tax agent or SMSF specialist, as these vary by provider and change over time.

Read more: Shares vs ETFs: which is right for your portfolio?

Is an SMSF right for you?

An SMSF can suit investors who want direct control over their retirement savings, have enough of a balance to justify the costs, and are willing to take on the time and legal responsibility — but it isn't right for everyone. The control and investment flexibility are real advantages; so is the ability to hold direct shares and ETFs with transparent, low brokerage. On the other side sit the ongoing costs, the administrative workload of 100-plus hours a year, and full legal accountability for compliance.

Only you can decide, ideally with licensed advice. An SMSF is a significant financial and legal commitment, so consider seeking advice from a licensed financial adviser and read the relevant disclosure documents before you act. If you've weighed it up and an SMSF fits your plans, you can explore how a low-cost SMSF trading account works.

Learn more: Explore SMSF investing with Selfwealth

Frequently asked questions

How much money do you need to start an SMSF? There's no legal minimum, but because SMSFs have fixed running costs (accounting, audit, the ATO levy), they're generally considered more cost-effective at larger balances. The right threshold depends on your circumstances — a registered tax agent or SMSF specialist can help you assess it.

How many members can an SMSF have? An SMSF can have up to six members. In most SMSFs, every member is also a trustee (or a director of the corporate trustee).

Can an SMSF invest in property? Yes, an SMSF can hold direct property, but the rules are strict — the property must meet the sole purpose test and there are limits on who can use it and how it's financed. Read using your SMSF to invest in property and get specialist advice first.

Can an SMSF hold US shares? Yes. Through a Selfwealth SMSF trading account, a fund can trade US shares and ETFs listed on the NYSE and Nasdaq, alongside Australian shares and ETFs on the ASX and TMX, all at flat $9.50 brokerage.

Who regulates SMSFs? The ATO regulates SMSFs, unlike industry and retail super funds, which are regulated by APRA. Trustees deal with the ATO for registration, annual returns and compliance.

What's the difference between an SMSF and an industry super fund? In an industry or retail fund, professionals invest your super for you. In an SMSF, you're the trustee — you choose the investments and carry the legal responsibility, in exchange for far greater control and flexibility.