SMSF Leasing & Market Rent Rules for Related Parties

Market rent is a condition, not a suggestion.

If your Self-Managed Super Fund owns a property and you lease it to a related party, the rent must reflect genuine market value. The ATO does not publish a tolerance margin, and there is no safe harbour for being close enough. The rate must be defensible, it must be documented, and it must hold up against comparable evidence.

Why Market Rent Matters Under the SIS Act

The SIS Act prohibits your SMSF from providing financial assistance to members or their related parties. Leasing property to a family member at below-market rent constitutes assistance, even if unintentional. Business real property is exempt from the in-house asset rules, but that exemption does not remove the arm's length requirement. If the lease is not on commercial terms, the SMSF property loan and the underlying investment could both be at risk.

The same issue applies to residential property your SMSF owned before the 10 August 2026 changes. If that property is leased to a related party operating a business from the premises, the rent charged must still reflect market value.

How Market Rent Is Assessed

Market rent is determined by the rate a tenant would reasonably pay in an open market transaction between parties dealing at arm's length. The assessment considers location, property type, lease term, outgoings, and prevailing rental yields in the area.

Consider a scenario where an SMSF owns a small commercial unit in Blairgowrie, leased to the member's consulting business. The fund charges rent based on what the member thinks they can afford rather than what similar units achieve locally. A year later, the SMSF auditor identifies the discrepancy. The trustee is required to remedy the contravention, pay the shortfall into the fund, and potentially face penalties. The fund may also be deemed non-complying, triggering a tax rate of 45 percent on its entire asset base.

The solution is to obtain a rental appraisal from a qualified property professional before the lease is signed, and again at each lease renewal. That appraisal forms part of the compliance file and supports the trustee's decision-making process.

Does the Market Rent Rule Apply to Commercial and Residential Property?

Yes, market rent applies to both. Business real property leased to a related party must be leased on arm's length terms, which includes market rent. Residential property held by an SMSF can only be leased to an unrelated third party at arm's length. It cannot be leased to a member or related party under any circumstances, regardless of the rent charged.

For commercial property, the definition under section 66 of the SIS Act requires the property to be used wholly and exclusively in one or more businesses. The business does not need to be carried on by the fund, but it must be a genuine business activity. A property marketed as commercial does not automatically satisfy the definition. Whether it qualifies depends on actual use at the time of acquisition and throughout the period the fund holds the asset.

Blairgowrie sits within a coastal precinct where many properties have mixed or seasonal use. A building with a ground-floor retail tenancy and an upstairs residential flat would not qualify as business real property unless the residential component is incidental under the primary production concession, which applies only in limited cases. If the property does not meet the business real property definition, it cannot be acquired from or leased to a related party.

What Happens When Rent Is Set Below Market Value

When rent is below market, the SMSF is providing a benefit to the related party. That benefit is a contravention of the sole purpose test and may constitute financial assistance. The trustee must lodge a contravention report with the ATO, remedy the breach, and ensure the shortfall is paid to the fund.

If the contravention is not identified and remedied, the fund may lose its complying status. A non-complying fund is taxed at 45 percent on all taxable income and does not receive concessional treatment on capital gains or retirement-phase income. The member cannot make further contributions, and the tax outcome can be severe.

In cases where the ATO determines the lease was deliberately structured to provide a benefit, penalties may apply to both the trustee and the fund. Professional SMSF advice and an annual audit are mandatory, but they do not replace the trustee's obligation to ensure compliance at the time the lease is entered.

Obtaining and Updating a Rental Appraisal

A rental appraisal must come from a qualified and independent property professional. The appraiser should provide a written report that includes comparable properties, lease terms, outgoings, and market conditions at the time of assessment.

The appraisal should be updated at each lease renewal or rent review, and more frequently if the local market shifts significantly. For a commercial property loan held within an SMSF, lenders may also require evidence that the lease reflects market rent as part of their ongoing security assessment.

If your SMSF is considering SMSF loan refinance, the new lender will review the lease documentation as part of their due diligence. A lease that does not reflect arm's length terms may affect the fund's ability to refinance or may require the lease to be renegotiated before settlement.

Documenting the Lease and Trustee Minutes

Every lease between an SMSF and a related party must be documented in writing. The lease should include rent, term, outgoings, rent review provisions, and any other material terms. The trustee must also prepare minutes that record the decision to enter the lease, the market rent assessment, and the basis on which the trustee determined the lease satisfied arm's length requirements.

Those minutes form part of the fund's compliance records and will be reviewed during the annual audit. If the auditor cannot verify that the lease was entered on arm's length terms, they are required to lodge a contravention report.

Call one of our team or book an appointment at a time that works for you. We work with licensed SMSF specialists and can connect you with the right advice before any lease is signed.

Frequently Asked Questions