Unlock the Secrets to SMSF Loan Structures

Interest-Only Loans Give Cash Flow Control but Defer Equity Growth

An interest-only SMSF loan leaves the principal untouched and directs all repayments toward interest. Principal-and-interest repayments reduce the loan balance over time and build equity in the asset held in the bare trust. The choice affects rental yield, borrowing capacity for future purchases, and how quickly the fund owns the property outright.

Consider an SMSF purchasing a small commercial strata unit in Eastwood, the type leased to medical or allied health tenants along Rowe Street. The fund borrows $600,000 under a Limited Recourse Borrowing Arrangement at a variable rate. On interest-only repayments, the monthly outgoing might be around $3,200. Switching to principal and interest adds roughly $1,400 per month, bringing the total closer to $4,600. The rental income is $3,800 per month. On interest-only terms, the fund generates positive cash flow of $600 each month. On principal and interest, the fund requires a top-up contribution of $800 monthly to service the loan.

If the fund holds multiple members nearing retirement, preserving cash flow may be the priority. The $600 monthly surplus on interest-only terms compounds inside the fund and remains available for other investments or to meet minimum pension payments once a member transitions to pension phase. If the fund is in accumulation with decades until retirement, paying down the loan builds unencumbered equity and reduces interest cost over the loan term.

Commercial Property Under an LRBA Remains Accessible Post-August 2026

From 10 August 2026, new residential LRBAs are prohibited under changes to the SIS Act. SMSFs can still borrow to acquire business real property, which includes land and buildings used wholly and exclusively in one or more businesses. This distinction is critical for Eastwood investors, where the suburb supports a mix of retail, office, and medical consulting space clustered near the railway station and Rowe Street precinct.

A commercial strata unit leased to a physiotherapy practice satisfies the business real property definition. A residential apartment on the same street does not, and cannot be purchased under a new LRBA entered into after 10 August 2026. The restriction applies regardless of whether the lender is a bank, non-bank, or related party. Existing residential LRBAs entered into before that date are unaffected and can be refinanced without triggering the new rules.

If your fund already holds a residential property under an LRBA, the loan can be refinanced to another lender without falling under the post-commencement restriction. The ATO treats refinancing as entering into a new loan contract for the same asset. The asset, the holding trust, and the beneficial interest remain unchanged.

Interest-Only Terms Suit Funds Targeting Rental Yield

Interest-only repayments make sense when rental income covers interest and the fund's strategy prioritises distributable income over equity accumulation. Rental income received by an SMSF in accumulation phase is taxed at 15 percent. If the property is held to support a pension, rental income may be exempt under the exempt current pension income rules, subject to segregation or proportionate calculation depending on the fund's circumstances.

In Eastwood, ground-floor retail tenancies near the shopping centre and transport interchange attract consistent demand from service businesses and food operators. A retail strata unit generating $48,000 annual rent with an interest-only loan costing $38,400 per year produces $9,600 of assessable rental income before deductions. After claiming interest, rates, insurance, and depreciation, the taxable income may be negligible. The fund retains the surplus and reinvests it.

On principal-and-interest terms, the same property requires higher monthly contributions from members or uses rental income to reduce the loan. The fund builds equity faster, but sacrifices immediate cash flow. If members are making regular concessional contributions and the fund has capacity to service the higher repayment, principal and interest accelerates the path to unencumbered ownership. If contributions are irregular or members are close to the transfer balance cap, interest-only terms reduce the risk of the fund breaching liquidity or pension payment obligations.

Principal and Interest Repayments Reduce Division 296 Tax Exposure

From 1 July 2026, Division 296 tax applies to members whose total superannuation balance exceeds $3 million at the end of the financial year. The tax is 15 percent on the proportion of fund earnings attributable to the amount above the threshold. Where the balance exceeds $10 million, an additional 10 percent applies to the portion above that level. LRBA amounts are disregarded when calculating the member's total superannuation balance, meaning only the equity held in the fund is counted.

Paying down the loan increases the member's superannuation balance over time, but also reduces the interest deduction and increases net rental income. A member with a balance near the $3 million threshold may prefer to delay equity growth and maintain interest-only terms to minimise taxable earnings. A member well below the threshold, or one whose balance already exceeds it, may prioritise building equity to reduce reliance on borrowed funds and improve the fund's financial position before pension phase.

Division 296 fund earnings include realised capital gains. An unrealised increase in the property's value does not trigger a CGT event and does not form part of the Division 296 calculation. Interest-only terms do not affect the timing of a capital gain, but they do preserve cash flow that can be used to meet the Division 296 tax liability when assessed. Principal-and-interest repayments reduce available cash but improve the fund's net asset position, which may assist if the property is sold and proceeds are used to commence a pension.

Fixed or Variable Rate Selection Interacts With Repayment Type

SMSF lenders offer both variable rate and fixed rate options for LRBAs. Variable rates move with the Reserve Bank cash rate and lender funding costs. Fixed rates lock in the interest cost for a set term, typically one to five years. The repayment type and rate type are separate decisions, but they interact in how the fund manages interest rate risk and budgets for loan servicing.

A variable rate interest-only loan offers maximum flexibility. The fund can switch to principal and interest at any time without break costs, and can often refinance without penalty. If the fund's cash flow improves due to rent increases or additional contributions, the loan can be adjusted. A fixed rate interest-only loan protects the fund from rate rises during the fixed term, but locks the fund into that repayment structure. Switching to principal and interest during the fixed period may trigger early repayment charges.

For commercial property in Eastwood, where lease terms are typically three to five years and rental reviews are tied to CPI or fixed annual increases, matching the loan's fixed term to the lease term can provide certainty. The fund knows its interest cost and rental income for the duration of the lease. When the lease renews, the loan can be refinanced or switched to principal and interest if the fund's circumstances have changed.

Refinancing Allows a Switch Between Repayment Types

An SMSF can refinance an existing LRBA to a new lender or restructure the loan with the same lender. Refinancing does not end the LRBA or require the asset to be transferred out of the holding trust, provided the refinanced loan relates to the same asset and maintains the limited recourse character of the original arrangement. This applies to both residential LRBAs entered into before 10 August 2026 and commercial LRBAs entered into at any time.

Refinancing is an opportunity to switch from interest-only to principal and interest, or vice versa, depending on the fund's current position. A fund that commenced an interest-only loan during the accumulation phase may refinance to principal and interest once rental income has increased or members have reached maximum concessional contribution limits and wish to direct surplus into loan reduction. A fund that commenced principal and interest may refinance to interest-only if a member transitions to pension phase and the fund requires higher cash flow to meet minimum pension payments.

Lenders assess SMSF refinance applications based on the fund's rental income, the member's superannuation balance, and the loan-to-value ratio. Most SMSF lenders cap LVR at 70 percent for commercial property and 80 percent for residential property held under pre-August 2026 arrangements. If the property has increased in value since purchase, the fund's equity position improves and refinancing becomes more accessible.

Loan Structuring Decisions Should Align With Fund Strategy and Member Age

The repayment type that suits an SMSF depends on whether the fund is in accumulation or pension phase, how many years remain until members retire, and whether the fund holds one property or multiple assets. A single-member fund with a 55-year-old member holding one commercial property in Eastwood will have different priorities to a two-member fund where both members are under 40 and the property is the first of several planned acquisitions.

Interest-only terms preserve borrowing capacity for future purchases. Lenders assess an SMSF's ability to service multiple LRBAs based on rental income and the fund's existing commitments. Keeping repayments low on the first loan allows the fund to service a second LRBA without breaching lender serviceability ratios. If the fund's strategy is to acquire two or three commercial units over a decade, interest-only terms on the initial loan provide the flexibility to act when the next opportunity arises.

Principal-and-interest terms suit funds focused on a single property where the goal is to own the asset outright before the member commences a pension. Entering pension phase with an unencumbered property means all rental income is exempt from tax and available to fund pension payments. The member avoids the risk of needing to service a loan during retirement or being forced to sell the property to meet a lump sum pension request.

Call one of our team or book an appointment at a time that works for you to discuss which loan structure aligns with your fund's investment strategy and retirement timeline.

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