Smart ways to approach property investment loans in SA

What makes an investment loan different from a home loan

An investment loan is structured to fund property you intend to rent out rather than live in. Lenders assess investment loans using higher serviceability buffers and different risk weights compared to owner-occupier lending. Most lenders add a 3.0 percentage point buffer to the loan rate when calculating whether you can afford repayments, and they treat rental income conservatively, typically applying an 80 per cent discount to expected rent to account for vacancy periods and maintenance costs.

Consider a buyer looking at a unit near the Adelaide Parklands who earns $85,000 annually and expects $450 per week in rent. The lender calculates serviceability using only $360 per week of that rental income, and tests repayments at a rate roughly 3.0 percentage points above the actual loan rate. With a $400,000 loan amount, the borrower would need to demonstrate capacity to service repayments at around 9 per cent even if the actual rate is closer to 6 per cent. The rental income helps but does not fully offset the debt.

Investment loans also attract different pricing. Variable rates on investor products sit higher than equivalent owner-occupier rates, and lenders apply stricter loan-to-value requirements. Most will lend up to 90 per cent of the property value for investment purposes, but borrowers with a deposit below 20 per cent face Lenders Mortgage Insurance premiums that can add several thousand dollars to upfront costs.

How the debt-to-income limit affects South Australian investors

From 1 February 2026, banks can lend no more than 20 per cent of their new investment loans to borrowers with total debt six times their income or higher. A South Australian investor earning $100,000 per year hits the six-times threshold at $600,000 in total borrowing. That figure includes any existing home loan, car loan or personal debt, not just the new investment loan.

The limit does not prevent you from borrowing above six times your income, but it does mean fewer lenders will approve the application. Investors with existing debt need to account for the combined total when working out what loan amount is realistic. Someone with a $450,000 home loan and $100,000 annual income has $150,000 of headroom before reaching the six-times limit, assuming no other debt.

This measure was introduced to manage risk in the lending system and applies separately to owner-occupier and investor portfolios. It does not replace serviceability assessment, which remains the primary test. Both criteria must be satisfied for approval.

Interest-only repayments and how they work for investors

Interest-only loans let you pay only the interest component of the loan for a set period, typically one to five years, without reducing the principal balance. The monthly repayment is lower during the interest-only period, which can improve cash flow if rental income does not fully cover the loan cost.

An investor borrowing $500,000 at 6.2 per cent on an interest-only basis pays around $2,583 per month during the interest-only term. The same loan on principal-and-interest repayments would cost roughly $3,050 per month. The difference frees up capital for other purposes, but the loan balance remains $500,000 at the end of the interest-only period, at which point repayments convert to principal and interest and rise sharply.

Interest-only investment loans attract higher risk weights under prudential standards, particularly where the loan-to-value ratio exceeds 80 per cent or the interest-only term exceeds five years. Lenders price this risk into the rate, so interest-only products generally carry a rate premium of 0.3 to 0.6 percentage points compared to principal-and-interest loans. Investors need to weigh the cash flow benefit against the higher rate and the fact that the debt does not decrease over time.

Tax treatment of investment property losses under the new rules

Losses from established residential investment properties acquired after 7:30pm AEST on 12 May 2026 can only be offset against income from other residential properties from the 2027-28 income year. If your property runs at a loss because interest and other costs exceed rental income, that loss cannot reduce your salary or business income on your tax return. Excess losses carry forward and can be used against residential property income in future years, including capital gains when you sell.

Properties held at 12 May 2026, or under contract at that time, retain full deductibility of losses against all income until sold. Eligible new builds acquired after 12 May 2026 are also exempt and continue to allow losses to be deducted against all income. An eligible new build is a dwelling constructed on vacant land or a development that increases the number of dwellings on the site. A knock-down rebuild that replaces one dwelling with one dwelling does not qualify.

For a South Australian investor purchasing an established property in Norwood or Salisbury after May 2026, the tax benefit of negative gearing disappears unless they also earn income from other residential investments. This changes the return calculation and makes positive or near-neutral cash flow properties more attractive than they were under the previous rules. For more on how refinancing might help adjust your loan structure, visit our refinancing page.

Capital gains tax changes from July 2027

From 1 July 2027, the 50 per cent capital gains tax discount is replaced by cost base indexation and a 30 per cent minimum tax rate on real gains accruing from that date. You index the purchase price by inflation and pay tax only on the profit above that indexed cost base. The minimum rate ensures you pay at least 30 per cent tax on the real gain, even if your marginal rate would otherwise produce a lower effective rate.

For properties purchased before 1 July 2027 and sold after that date, the gain is split. The portion accruing before 1 July 2027 is taxed under the current 50 per cent discount rules, and the portion accruing after that date uses indexation and the minimum rate. You can obtain a market valuation at 1 July 2027 to establish the split, or apply an apportionment formula the ATO will publish.

Investors in eligible new builds can choose between the 50 per cent discount and the indexation method when they sell. The choice lets you pick whichever delivers the lower tax outcome based on your circumstances at the time of sale. Established properties do not have this option.

What rental income actually counts toward serviceability

Lenders discount expected rental income when calculating how much you can borrow. Most apply an 80 per cent shading factor, meaning a property renting for $500 per week contributes $400 per week to your serviceability assessment. The 20 per cent reduction accounts for vacancy periods, repairs and management costs that reduce net income.

Some lenders use different shading rates depending on the property type and location. Units and apartments in areas with higher vacancy rates may be shaded more heavily, while standalone houses in tightly held suburbs may receive more favourable treatment. Lenders also cap the number of investment properties they will finance for a single borrower, typically between four and six properties depending on the institution and the borrower's overall financial position.

If you already own investment property, the rental income from existing holdings is included in the serviceability test for a new investment loan, but it is also shaded. You cannot assume lenders will count every dollar of rent you currently receive. The approach varies by lender, so working with a broker who understands each institution's policy helps identify which lender is likely to support your application. Our team at Trophy Advisory works with investors across South Australia to structure applications that align with lender criteria. To explore your investment loan options, call one of our team or book an appointment at a time that works for you.

Loan-to-value limits and when you pay Lenders Mortgage Insurance

Most lenders require Lenders Mortgage Insurance on residential investment loans where the loan-to-value ratio exceeds 80 per cent. The premium is calculated on a sliding scale based on the loan amount and the LVR, and it protects the lender, not the borrower, in the event of default. A $450,000 loan at 85 per cent LVR might attract an LMI premium of $8,000 to $12,000 depending on the insurer and the lender's pricing.

You can add the LMI premium to the loan amount rather than paying it upfront, but doing so increases your LVR slightly and your ongoing interest cost. Some lenders cap investment lending at 90 per cent LVR even with LMI, and a handful restrict it further for certain property types, such as units in high-density developments or properties in regional areas with limited demand.

Offset account balances do not reduce the loan amount for LVR calculation purposes under the prudential standards. If you borrow $400,000 and hold $50,000 in an offset account, the LVR is still calculated on the full $400,000 loan balance, not the net $350,000 position. This affects the capital requirement the lender must hold and can influence the rate and features offered.

Fixed rate versus variable rate for property investors

A variable rate investment loan allows you to make extra repayments, access offset accounts and redraw funds without penalty. The rate moves with market conditions, which means repayments can rise or fall over time. A fixed rate locks in your repayment amount for a set term, typically one to five years, but restricts additional repayments and usually prohibits offset accounts during the fixed period.

Investors focused on tax deductions and cash flow management often prefer variable loans with offset accounts. The offset account reduces interest payable without reducing the deductible loan balance, which preserves the tax benefit. Fixed rates suit investors who want certainty over repayments and expect rates to rise, but breaking a fixed loan early can trigger significant costs if your circumstances change.

Some investors split their loan between fixed and variable portions to balance certainty with flexibility. You might fix 50 per cent of the loan and leave the remainder variable with an offset account. The structure depends on your risk tolerance, your view on interest rate movements and whether you expect to refinance or sell within the fixed term. If your fixed rate is approaching expiry, our fixed rate expiry service can help you review your options.

Using equity from your home to fund an investment deposit

If you own your home and have paid down the loan or benefited from property value growth, you may be able to access equity to fund the deposit on an investment property. Lenders typically allow you to borrow up to 80 per cent of your home's value across all loans secured against it, meaning a home worth $600,000 with a $300,000 loan balance leaves $180,000 of accessible equity.

The equity is released by increasing your home loan, not by selling the property. The additional borrowing is secured against your home, and the funds are used to cover the deposit and purchase costs on the investment property. The investment property then serves as security for its own loan. You end up with two loans: one against your home and one against the investment property.

Interest on the portion of borrowing used to acquire the investment property is tax-deductible, but interest on the portion used for private purposes is not. Keeping the loans separate or maintaining clear records of how funds were used is important for tax purposes. Lenders assess serviceability on the total debt across both properties, so you need sufficient income to support the combined borrowing. For more on how much you can borrow, visit our borrowing capacity page.

Foreign investment restrictions for non-residents

Foreign persons are generally banned from purchasing established dwellings in Australia from 1 April 2025 to 30 June 2029. The ban was originally set to end in March 2027 and was extended by more than two years. Temporary residents can still apply for approval to purchase new dwellings or vacant land, subject to conditions.

Foreign investors who acquire vacant residential land are generally required to complete construction within four years and cannot sell the land until construction is complete. Application fees for foreign investment approvals were tripled from April 2025, and the ATO has increased enforcement activity targeting land banking and non-compliance with development conditions.

Permanent residents and New Zealand citizens remain exempt from foreign investment restrictions. Non-residents who held established property before the ban took effect are not required to sell, but they may be subject to an annual vacancy fee if the property is not rented or occupied for at least 183 days in a vacancy year. The vacancy fee is double the foreign investment application fee that applied when the property was purchased.

What to consider before applying for an investment loan

Start by working out whether the property will generate positive cash flow or run at a loss. Factor in all holding costs, including interest, council rates, insurance, body corporate fees if applicable, property management and an allowance for repairs. Compare that total to expected rental income, remembering that lenders assume the property will sit vacant for part of the year.

Check your borrowing capacity by reviewing your income, existing debts and the rental income the property will generate. Remember that lenders shade rental income and test serviceability at a rate higher than the actual loan rate. If your total debt will exceed six times your income, approval may be harder to obtain.

Decide whether you want interest-only or principal-and-interest repayments, and whether a variable or fixed rate suits your circumstances. Consider how the tax treatment applies to your situation, particularly if you are purchasing an established property after May 2026 and do not have other residential property income to offset losses against.

Call one of our team or book an appointment at a time that works for you. Trophy Advisory works with lenders across Australia to access investor loan products suited to South Australian property buyers, whether you are purchasing in Adelaide, Christies Beach, or regional centres across the state.

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