When to Use Super for Property Investment

Most high school teachers with a self-managed super fund assume serviceability works the same way as a standard home loan. It doesn't.

Lenders assess your SMSF's ability to service a loan using two income streams: your regular superannuation contributions and the rental income the property will generate. They don't look at your teaching salary directly because the loan sits inside the fund, not in your personal name. Getting this calculation right determines whether you can borrow at all, and if so, how much.

How Lenders Calculate SMSF Borrowing Capacity

Lenders assess borrowing capacity for an SMSF property loan by combining your concessional contributions with projected rental income from the property. Most lenders apply between 70 and 80 percent of the rental income to allow for vacancy periods and holding costs. Your employer super guarantee contributions and any salary sacrifice amounts you've set up form the base of what the fund can reliably service each year.

Consider a high school teacher earning around $100,000 who salary sacrifices an additional $10,000 per year on top of the compulsory 11.5 percent employer contribution. The fund receives roughly $21,500 annually in concessional contributions. A commercial property generating $30,000 in annual rent gives the lender about $22,500 in rental income to work with after applying a 75 percent factor. Combined, that's $44,000 in annual serviceability before the lender applies their assessment rate and buffers. That amount needs to cover the loan repayments, property expenses, and any insurance premiums the fund pays.

The Residential Property Ban and What It Means Now

New limited recourse borrowing arrangements for residential property are prohibited from 10 August 2026. You cannot use your SMSF to borrow money to buy a house, apartment, or any other residential dwelling after that date. The ban applies regardless of whether the property is newly constructed or already established.

Commercial property that meets the business real property definition under section 66 of the SIS Act remains available for SMSF borrowing. That includes retail shops, office space, warehouses, and industrial sites used wholly and exclusively in a business. If you've been thinking about using super to acquire investment property, the decision now comes down to whether you're prepared to hold commercial real estate or whether you'd rather buy residential property outright using existing fund assets without borrowing.

When Commercial Property Serviceability Works in Your Favour

Commercial tenants typically sign longer leases than residential tenants, and many commercial leases require the tenant to cover outgoings like council rates, insurance, and maintenance. Lenders treat this income as more reliable, which can improve your serviceability position.

A teacher with a modest super balance but strong ongoing contributions might find a small commercial property more accessible than expected. A suburban office or retail unit leased to an established business on a five-year term gives the lender confidence in both income stability and tenant quality. The lease structure also means the fund isn't wearing the cost of rates and insurance, so more of the rental income is available to service the loan. This can offset a lower deposit or a smaller contribution base compared to what a residential LRBA would have required before the ban.

Contribution Limits and How They Affect Your Strategy

Your concessional contributions are capped at $32,500 per year from 1 July 2026. That cap includes your employer contributions, so the room left for salary sacrifice depends on what your school or education department already pays in. If you're earning $100,000 and receiving 11.5 percent super, that's $11,500 already committed, leaving $21,000 available for salary sacrifice if you want to maximise contributions.

Lenders won't assess contributions above the cap because any excess is taxed at your marginal rate and doesn't improve the fund's position. If you've been contributing $15,000 in salary sacrifice on top of your employer contributions, you're already close to the ceiling. Increasing contributions further to improve serviceability isn't an option unless you're currently under the cap. This makes the rental income component critical for anyone trying to stretch their SMSF borrowing capacity.

What Happens When Your Super Balance Exceeds $3 Million

Division 296 tax applies from 1 July 2026 where your total superannuation balance exceeds $3 million at the end of the financial year. The fund pays an additional 15 percent tax on earnings attributable to the amount above that threshold. If your balance exceeds $10 million, another 10 percent applies to earnings above that level.

This doesn't directly affect serviceability, but it changes the return profile of holding property inside super. Rental income and capital gains in the fund are already taxed at 15 percent during accumulation phase. Adding another 15 percent on the portion of earnings above $3 million reduces the tax advantage that made super attractive in the first place. If you're a mid-career teacher with a balance approaching that threshold, the serviceability calculation might still work, but the after-tax return on the property needs to justify the structure.

Refinancing an Existing Residential LRBA

Existing residential property loans inside your SMSF entered into before 10 August 2026 are protected. You can continue to hold the property and refinance the loan provided the refinancing doesn't create a new arrangement under ATO rules. The ATO treats significant changes to loan terms or conditions as ending the old arrangement and starting a new one, which would trigger the residential ban.

As at early July 2026, the ATO had not published updated guidance on what constitutes a significant change post-ban. Switching lenders to access a lower rate is generally considered refinancing rather than a new arrangement, but adding funds to the loan, changing the asset, or altering the trust structure could be treated differently. If you're holding a residential SMSF loan and considering refinancing, wait for clearer guidance or seek advice from a licensed SMSF specialist before proceeding.

Why Rental Income Projections Matter More Than You Think

Lenders rely on a rental appraisal or the lease agreement in place to determine serviceability. If the property is vacant at the time of application, the appraisal needs to be conservative and supported by comparable leases in the area. Overstating rental income to improve serviceability will either be picked up during the lender's assessment or create a shortfall once the loan settles and the actual rent comes in lower.

A commercial property in an outer suburban area might appraise at $25,000 per year, but if comparable properties are sitting vacant or leasing for $20,000, the lender will adjust downward. That adjustment flows directly into your borrowing capacity. The difference between an approved loan and a declined application often comes down to whether the rental appraisal stacks up against the lender's internal benchmarks and the local market data they hold.

Call one of our team or book an appointment at a time that works for you. We'll walk through your contributions, the rental income on any property you're considering, and whether the serviceability calculation supports the loan amount you need.

Frequently Asked Questions