Smart Ways to Approach SMSF Loan Serviceability

Most lenders assess SMSF borrowing capacity by combining the fund's actual rental income with scheduled member contributions, then applying a buffer to account for interest rate movements and rental vacancies.

As a Clinical Nurse Specialist considering an SMSF loan, you need to understand how serviceability differs from standard investment loans. The fund itself is the borrower, not you personally. Lenders evaluate the fund's income streams, not your employment income. That distinction shapes every part of the approval process.

How Lenders Calculate SMSF Serviceability

Lenders start with two income sources: the property's rental income and the member contributions you commit to making. Rental income is assessed at the current lease rate if a tenant is in place, or at an independently verified market rent if the property is vacant. Most lenders apply a 20 to 30 percent reduction to that figure to account for vacancies, maintenance periods, and collection issues.

Member contributions are treated as committed income only if you provide evidence of consistent contribution history and capacity to maintain that pattern. Concessional contributions are capped at $32,500 per member per year from 1 July 2026. Where your total superannuation balance approaches the contribution thresholds, lenders reduce the contribution amount they will accept in the serviceability calculation.

Consider a fund purchasing a commercial premises leased at $48,000 per annum. The lender assesses rental income at 75 percent of that amount, or $36,000. You commit to annual concessional contributions of $30,000. The fund's assessed income is $66,000. The lender then applies an interest rate buffer of around 3 percent above the actual loan rate and tests whether the fund can meet repayments at that stressed rate. If the loan amount is $500,000 at a 6 percent rate, the lender tests serviceability at 9 percent, requiring the fund to demonstrate capacity to service approximately $60,000 in annual interest on an interest-only basis.

Commercial Property and the 2026 Residential Ban

The Treasury Laws Amendment (Tax Reform No. 1) Act 2026 prohibits new limited recourse borrowing arrangements for residential property from approximately 10 August 2026. SMSFs can still borrow to acquire commercial property that satisfies the business real property definition under section 66 of the SIS Act. Business real property means land and buildings used wholly and exclusively in one or more businesses.

That definition is determined by actual use at the time of acquisition, not zoning or potential use. A commercial premises leased to an operating business qualifies. A vacant shopfront may not. Where the property contains a dwelling, it can still qualify if the dwelling occupies no more than 2 hectares and the main use of the whole property is not domestic or private. Detailed guidance is set out in SMSFR 2009/1.

Rental Income Tax Within the SMSF

Rental income received by an SMSF in accumulation phase is taxed at 15 percent. Deductible expenses include interest on the limited recourse borrowing arrangement, property management fees, repairs and maintenance, council rates, and insurance. Capital improvements cannot be funded from the borrowing itself under the single acquirable asset rule, but can be paid from other fund assets and depreciated over time.

Where a member has commenced a pension and the fund holds assets supporting that pension, rental income attributable to those assets is tax exempt. Division 296 tax applies from 1 July 2026 where a member's total superannuation balance exceeds $3 million at the end of the financial year. That tax is calculated on the proportion of earnings attributable to the amount above the threshold. Outstanding limited recourse borrowing arrangement amounts entered into on or after 1 July 2018 are included in the total superannuation balance calculation in certain circumstances, including where the arrangement is with an associate of the fund.

LVR Limits and Deposit Requirements

Most lenders offering SMSF loans for commercial property cap the loan-to-value ratio at 70 percent. Some restrict it further to 60 or 65 percent depending on property type and location. That means the fund must hold at least 30 percent of the purchase price plus settlement costs before the lender will approve the loan.

For a commercial property acquired at $800,000, the fund needs $240,000 in existing assets, plus another $30,000 to $40,000 for stamp duty, legal fees, and loan establishment costs. Those funds must already be in the SMSF. You cannot borrow the deposit. If your fund balance is insufficient, you will need to make additional contributions over one or more financial years before proceeding. Non-concessional contributions are capped at $130,000 per member per year, with bring-forward rules allowing up to $390,000 over three years where your total superannuation balance on 30 June of the previous year was below $1.84 million.

In our regular work with Clinical Nurse Specialists, we see funds that have accumulated balances through salary sacrifice and employer contributions over 15 to 20 years of practice. A fund with two members and a combined balance of $450,000 has the capacity to acquire commercial property in that range once contributions and existing assets are factored into the deposit calculation. The alternative is to invest in residential property using other fund assets without borrowing, but that limits the purchase price to the fund's existing balance.

Related Party Leasing and Arm's Length Terms

Business real property leased between the fund and a related party of the fund is excluded from the in-house asset rules. Any such lease must be made on arm's length terms at market value. Where you operate a business through a private company or family trust, the SMSF can acquire commercial premises and lease it back to that entity.

The lease must reflect market rent for comparable properties in the area. An independent valuation is required at the commencement of the lease and should be updated every three to five years. Rent reviews should follow the same pattern as third-party commercial leases. Lenders scrutinise related party leases closely during the serviceability assessment. If the rent is set above market to inflate the fund's income, the lender will apply a market adjustment and reduce the assessed rental income accordingly.

Sole Purpose Test and Member Benefits

The sole purpose test requires that the fund is maintained solely to provide retirement benefits to members. Acquiring property through the fund must be consistent with that purpose. A member cannot occupy residential property owned by the fund. The prohibition extends to related parties of the member.

Commercial property leased to a related party business does not breach the sole purpose test provided the lease is on arm's length terms and the acquisition strategy aligns with the fund's investment objectives. The benefit flows to the fund in the form of rental income and capital growth, not to the member personally during the accumulation phase. Where a lease to a related party is significantly below market rent, the ATO may view the arrangement as providing a present-day benefit to the member's business rather than a future retirement benefit to the fund.

Contribution Capacity and Serviceability Over Time

Serviceability is not assessed once at the time of application and then ignored. Lenders require evidence that the fund can maintain serviceability throughout the loan term. Where member contributions form a material part of the assessed income, lenders expect those contributions to continue at the committed rate.

Your age and proximity to retirement affect the lender's view of contribution sustainability. A Clinical Nurse Specialist aged 45 with 20 years until retirement can credibly commit to ongoing concessional contributions at or near the cap. A member aged 60 may face questions about contribution capacity post-retirement, particularly if rental income alone is insufficient to service the loan. Some lenders require a clear exit strategy, such as a plan to sell the property or transition the fund to pension phase with sufficient balance to maintain serviceability from exempt income and drawdowns.

Where your income fluctuates due to part-time work, shift penalties, or private practice arrangements, lenders assess contribution capacity more conservatively. Payslips and tax returns demonstrating consistent earnings over two or more years strengthen the case for sustained contributions. Self-employed arrangements can complicate the assessment, as lenders look for evidence that business income supports both personal living expenses and superannuation contributions at the proposed rate.

Variable and Fixed Rate SMSF Loans

SMSF loans are available on both variable and fixed rate terms. Variable rates for commercial property LRBAs typically sit 1.5 to 2.5 percent above standard residential investment loan rates. Fixed rate terms are available for one to five years, though most lenders limit fixed terms to three years for SMSF commercial loans.

The choice between variable and fixed affects serviceability assessment. A fixed rate provides certainty over the interest cost for the fixed period, but the lender still applies the buffer when testing serviceability at application. The buffer is calculated from the fixed rate, not the variable rate. On a fixed rate of 6.5 percent, the lender tests serviceability at around 9.5 percent.

Break costs apply if you repay a fixed rate loan early, including through refinancing or property sale. Those costs can be substantial where the market rate at the time of break is lower than the fixed rate you are locked into. Variable rate loans offer flexibility to make additional repayments or refinance without penalty, which matters if the fund's circumstances change or if you wish to access more favourable terms with another lender.

The Bare Trust and Asset Ownership Structure

Property acquired under a limited recourse borrowing arrangement must be held in a separate bare trust until the loan is repaid. The SMSF holds a beneficial interest in the asset. Legal title is held by a custodian trustee. Once the loan is fully repaid, legal title transfers to the SMSF trustee.

The holding trust must be established before settlement. The custodian can be a corporate entity or an individual, but cannot be the same entity as the SMSF trustee. The arrangement must meet the conditions in sections 67A and 67B of the SIS Act. If the loan defaults, the lender's recourse is limited to the asset held in the bare trust. No other fund assets are at risk.

That limited recourse character is the reason SMSF loan rates are higher than standard commercial or residential investment loan rates. The lender carries more risk because they cannot pursue the fund's other assets if the property value falls and the borrower defaults. Lenders mitigate that risk through lower LVR limits, stricter serviceability tests, and higher interest rates.

Refinancing Existing SMSF Residential Loans

Existing limited recourse borrowing arrangements over residential property entered into before approximately 10 August 2026 are grandfathered. The Treasury Laws Amendment (Tax Reform No. 1) Act 2026 provides that the residential LRBA prohibition does not apply to maintaining or refinancing a borrowing under an arrangement entered into before the commencement date.

As at 2 July 2026, the ATO had not published updated guidance on the circumstances in which a refinancing arrangement might be treated as a new LRBA under the post-commencement rules. Under the ATO's existing position, a significant change to the terms or conditions of an LRBA ends the arrangement and a new one begins. Circumstances that may end an existing arrangement include refinancing that is inconsistent with the original arrangement, borrowing to acquire an asset not contemplated under the original arrangement, and changes to the ultimate beneficiaries of the arrangement.

If you hold a residential property LRBA established before the ban, refinancing with the same lender or switching to a new lender on substantially similar terms should maintain the grandfathered status. Extending the loan term significantly, increasing the borrowing beyond the original amount, or changing the structure of the holding trust may trigger a new arrangement subject to the prohibition. Seek advice from a licensed SMSF specialist before refinancing any grandfathered residential LRBA.

Call one of our team or book an appointment at a time that works for you. We work specifically with Clinical Nurse Specialists and other healthcare professionals, and we understand how SMSF borrowing capacity is assessed when your super fund is the borrower and your contributions form part of the income calculation.

Frequently Asked Questions