Understanding the Basics of Investment Property Loans

A practical guide for Oakleigh South residents looking to purchase their first or next investment property through strategic finance.

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Purchasing an investment property in Oakleigh South requires careful consideration of your loan structure before you begin searching for the right property.

Oakleigh South sits within a well-established residential corridor that attracts both young families and professionals working in nearby Monash Medical Centre and the surrounding commercial precincts. Properties here typically include older-style units, townhouses, and detached homes on modest blocks. Understanding which loan features align with your investment strategy determines whether the property generates positive cash flow, provides tax advantages, or positions you for portfolio expansion.

How Investment Loans Differ from Owner-Occupied Finance

Investment loans typically carry interest rates 0.20% to 0.50% higher than owner-occupied loans and require stricter serviceability assessments. Lenders assess your ability to service the loan using only 80% of the expected rental income, meaning you need sufficient personal income or equity to cover the shortfall. This differs from owner-occupied home loans, where the full income is assessed without rental deductions.

Consider a buyer purchasing a two-bedroom unit in Oakleigh South. The rental appraisal suggests $450 per week, but the lender will only count $360 of that income when calculating whether you can afford the loan. If your repayments are $520 per week, you need to demonstrate $160 per week in surplus income after all your existing commitments. This is why many first-time investors struggle to secure approval despite having adequate deposit and equity.

Interest Only Repayments and Cash Flow Management

Interest only repayments allow you to pay only the interest portion of the loan for a set period, typically one to five years. This reduces your weekly repayment and can turn a negatively geared property into a cash flow neutral or positive investment, particularly in areas where rental yields are modest.

In Oakleigh South, where rental yields often sit between 3.5% and 4.5%, an interest only structure can make the difference between holding the property comfortably or facing financial pressure during vacancy periods. Once the interest only period ends, the loan reverts to principal and interest repayments, which increases your weekly cost but also begins reducing the loan balance. You can typically reapply for another interest only period if your circumstances and the lender's policies allow.

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Variable or Fixed Rate for Investment Property

Variable rate investment loans offer flexibility to make additional repayments, access offset accounts, and refinance without break costs. Fixed rate investment loans provide repayment certainty for a set period, which is useful if you are negatively geared and want to lock in your out-of-pocket expense.

The choice depends on your cash flow buffer and risk tolerance. If you are claiming the maximum tax deductions and operating with minimal surplus income, a fixed rate protects you from rate increases that could push the investment into unaffordable territory. If you have substantial equity or income and plan to pay down the loan or refinance within a few years, a variable rate provides more control. Many investors use a split structure, fixing a portion for stability while keeping the rest variable for flexibility. This approach is covered in more detail through our refinancing options for existing property investors.

How Recent Tax Changes Affect New Investment Property Purchases

From 1 July 2027, losses from established residential properties purchased after 12 May 2026 can only be offset against rental income or capital gains from residential property, not against salary or wages. Excess losses can be carried forward to future years but no longer provide an immediate tax benefit if you earn employment income.

This changes the financial equation for properties in Oakleigh South where rental yields are lower than loan repayments. Previously, a property costing $600 per week to hold but only generating $450 in rent would allow you to claim the $150 weekly shortfall as a tax deduction against your salary, reducing your overall tax liability. Under the new rules, that deduction is quarantined and can only be used when you sell the property or earn rental income from other investments. The property still builds wealth through capital growth, but the annual cash flow impact is higher because you no longer receive a tax refund to offset the loss.

New builds are exempt from these restrictions and retain full negative gearing benefits, which makes newly constructed townhouses and units in the area more attractive from a tax perspective. Buyers considering established properties need to factor in the higher annual holding cost when assessing whether the investment is sustainable.

Loan to Value Ratio and Deposit Requirements

Most lenders cap investment loans at 90% LVR, meaning you need at least a 10% deposit plus costs. Borrowing above 80% LVR triggers Lenders Mortgage Insurance, which protects the lender if you default but adds several thousand dollars to your upfront costs.

A 20% deposit is the threshold at which most lenders offer their most competitive investor interest rates and waive LMI. If you are buying in Oakleigh South and using equity from an existing property rather than cash savings, the lender will typically allow you to borrow up to 80% of your current property's value to fund the deposit and costs on the new purchase. This is referred to as equity release or leveraging equity, and it allows you to enter the investment market without liquidating other assets. You can explore how much you can borrow through a borrowing capacity assessment before committing to a purchase.

Claimable Expenses and Maximising Tax Deductions

Once the property is tenanted, you can claim loan interest, property management fees, insurance, council rates, water charges, repairs, and depreciation on the building and fixtures. Body corporate fees are also fully deductible for units and townhouses, which is relevant in Oakleigh South where many investment-grade properties are strata-titled.

Stamp duty and other purchase costs are not immediately deductible but form part of your cost base when calculating capital gains tax on sale. Keeping detailed records of all expenses throughout the ownership period ensures you maximise deductions and minimise your tax liability. Many investors underestimate the value of a quantity surveyor's depreciation schedule, which can add several thousand dollars in deductions each year for properties with substantial building value or recent renovations.

Structuring Your Investment Loan Application

Lenders assess investment loan applications differently depending on whether you already own property, have other investment loans, or are purchasing your first investment while renting. If you currently live in a property you own, moving that loan to an investment rate and purchasing a new owner-occupied property typically provides lower rates and higher borrowing capacity than keeping your existing home as owner-occupied and buying an investment.

This is because lenders apply higher serviceability buffers to investment loans, meaning the same income supports a smaller loan amount. If you plan to build a portfolio over time, structuring your first purchase correctly avoids limiting your borrowing capacity for future investments. We regularly see buyers in Oakleigh South who purchased their first home in the area and now want to buy an investment property while upgrading their own residence. Switching the original loan to investment status and refinancing into a new owner-occupied loan often delivers both lower rates and better long-term flexibility.

Purchasing an investment property in Oakleigh South involves more than finding the right house or unit. The loan structure you choose affects your cash flow, tax position, and ability to grow your portfolio over time. Call one of our team or book an appointment at a time that works for you.

Frequently Asked Questions

How much deposit do I need for an investment property in Oakleigh South?

Most lenders require at least 10% of the property value plus costs, though borrowing above 80% triggers Lenders Mortgage Insurance. A 20% deposit typically provides access to better interest rates and avoids LMI.

Can I still negatively gear an investment property purchased in Oakleigh South?

If you purchase an established property after 12 May 2026, losses can only be offset against rental income or capital gains from residential property from 1 July 2027 onwards. New builds retain full negative gearing benefits and allow losses to be claimed against salary and wages.

Should I choose interest only or principal and interest repayments for an investment loan?

Interest only repayments reduce your weekly cost and improve cash flow, which is useful in areas with modest rental yields like Oakleigh South. Principal and interest repayments build equity faster but increase your out-of-pocket expense, so the choice depends on your income buffer and investment strategy.

What rental income do lenders use when assessing an investment loan?

Lenders typically assess your serviceability using only 80% of the expected rental income, not the full amount. This means you need sufficient personal income or equity to cover the gap between the assessed rental income and your actual loan repayments.

Can I use equity from my current home to buy an investment property?

Yes, most lenders allow you to borrow up to 80% of your current property's value to fund the deposit and costs on an investment purchase. This is called equity release and allows you to invest without using cash savings.


Ready to get started?

Book a chat with a Mortgage Broker at Law Home Loans today.