What is a self-managed super fund (SMSF)?

Claudia AinsleyWritten byClaudia Ainsley
Reviewed byMatt Leeburn
Updated 26 Aug 2026

A self-managed super fund (SMSF) is a private superannuation fund of up to six members who run it themselves as trustees, taking on the fund's investment and compliance duties.

Also known as: SMSF, DIY super fund, self managed super

Key points

  • Every member is a trustee, or a director of the fund's corporate trustee, so the legal responsibility sits with the members.
  • The ATO regulates SMSFs, and each fund lodges an annual return and is audited by an approved SMSF auditor.
  • The sole purpose test applies: the fund must be run to provide retirement benefits, not to give members a benefit today.
  • Trustees must set an investment strategy and consider whether members need insurance held through the fund.
  • Running costs are largely fixed, so a smaller balance carries a higher percentage cost than it would in a large public fund.

How an SMSF works

What trustees take on

Borrowing inside an SMSF

Example

Not to be confused with

Trust
an SMSF is a type of trust, but an ordinary family trust is not a super fund and gets no super tax treatment

Frequently asked questions

How does a self-managed super fund work?

You set up a trust with a deed, become a trustee alongside the other members, and roll existing super into the fund's own bank account. Trustees choose the investments, keep the records, and lodge an annual return that an approved SMSF auditor has signed off.

How much do you need to start an SMSF?

There is no legal minimum, but audit, accounting and administration costs are largely fixed, so they weigh more heavily on a small balance. ASIC and the ATO both publish guidance on the likely costs and the time involved. Licensed advice is worth getting first.

Can an SMSF buy property?

Yes, subject to the rules. A fund can hold residential or commercial property as an investment, but members and their relatives cannot live in or rent a residential property it owns. Business real property is different and can be leased to a member's business at market rates.

Can an SMSF borrow money?

Only through a limited recourse borrowing arrangement, where the asset sits in a separate holding trust and the lender's recourse is limited to that asset. Fewer lenders offer these loans, and the fund must be able to meet repayments from contributions and rent.

Who regulates SMSFs?

The ATO regulates self-managed funds, while APRA oversees larger public offer funds. SMSF trustees deal with the ATO for registration, annual returns and compliance action, and they do not have access to every protection that applies to APRA-regulated funds. Check the current position with the ATO.

Go deeper

Sources

This article is general information only and is not financial advice.