Do You Know How to Fund Your First Investment Property?

Buying your first investment property requires a different approach to borrowing than purchasing your own home.

The main difference sits in how lenders assess your ability to service the loan and the deposit they expect you to bring. While rental income can support your application, lenders will typically only count 70 to 80 per cent of that income when calculating your borrowing capacity. At the same time, you will need a larger deposit than a home buyer, and the interest rate on your loan will usually sit slightly higher than an owner-occupier equivalent.

For Noosaville residents considering investment loans, the appeal is clear. The suburb sits within a tightly held market where rental vacancy rates remain low and demand from holidaymakers and long-term tenants stays consistent. But entering that market with the right loan structure and a realistic view of what you can borrow is essential.

How Much Deposit Do You Need for Your First Investment Property?

Most lenders require a minimum 10 per cent deposit for an investment property, though some will lend with as little as 5 per cent if you are prepared to pay Lenders Mortgage Insurance.

The more practical threshold is 20 per cent. At that level, you avoid LMI entirely, which can add thousands of dollars to your upfront costs. You also gain access to a wider range of lenders and more competitive interest rates. If you are using equity from your home to fund the deposit, the amount you can release will depend on how much equity sits in that property and whether your existing home loan can support the additional borrowing.

Consider a buyer who owns a home valued at $800,000 with a mortgage of $400,000. That buyer has $400,000 in equity, but can only access a portion of it. Most lenders will allow you to borrow up to 80 per cent of the property value without triggering LMI on the overall position. In this scenario, 80 per cent of $800,000 is $640,000. After subtracting the existing $400,000 mortgage, the buyer has access to $240,000 in usable equity, which would cover a 20 per cent deposit on a property valued up to $950,000, plus associated costs.

If you do not have equity to draw on, you will need genuine savings or gifted funds from family. Some lenders will also accept proceeds from the sale of assets, such as shares or another property.

What Loan Structure Works for a First Investment Property?

Your loan structure should reflect both your cash flow position and your tax strategy.

Most investors choose an interest-only loan for the first five years. This keeps repayments lower and maximises the amount of deductible interest you can claim against your rental income. After the interest-only period ends, the loan reverts to principal and interest unless you apply to extend it. Some lenders will extend the interest-only period, but not all, and approval is not automatic.

Variable rates currently dominate the investment loan market, but a split structure can offer some stability. You might fix 50 per cent of the loan for two or three years to lock in part of your repayment, while leaving the other half on a variable rate to retain flexibility. Fixed rates on investment loans do not always move in line with variable rates, so comparing both at the time of application is important.

You will also want an offset account linked to the variable portion of your loan. Any funds sitting in that account reduce the balance on which interest is calculated, which can lower your monthly repayments or allow you to pay down the loan faster without losing access to those funds.

How Do Lenders Assess Rental Income?

Lenders apply a discount to rental income when calculating your borrowing capacity, typically using between 70 and 80 per cent of the estimated rent.

That discount accounts for periods when the property may sit vacant, as well as ongoing costs like property management fees, strata levies, and maintenance. If you are buying in Noosaville, where short-term holiday rentals are common, some lenders will take a more conservative view of the income you can rely on, particularly if you plan to use the property for personal holidays during peak periods.

To estimate rental income, lenders will ask for either a rental appraisal from a licensed property manager or evidence of comparable rents in the area. The figure they accept may differ from what you expect, so it is worth getting that appraisal done before you commit to a purchase price.

Your existing income and expenses also matter. Lenders will assess your total debt position, including your current home loan, credit cards, car loans, and any other ongoing commitments. They will then apply a serviceability buffer of 3 percentage points above the loan product rate to test whether you could still afford the repayments if rates rise. Since February 2026, lenders have also been required to limit the proportion of loans they write to borrowers with a debt-to-income ratio of six times or more. For investors, that means your total borrowings across all loans cannot exceed six times your household income unless you fall within the 20 per cent of new lending that sits outside that cap.

Do You Need to Set Up a Separate Loan Account?

Keeping your investment loan separate from your home loan is not just a preference, it is a tax requirement.

The Australian Taxation Office is clear on this point. Interest on borrowings used to purchase an investment property is deductible, but only to the extent that the funds were used for that purpose. If you mix investment and personal borrowings in the same loan account, you create a record-keeping problem that can limit your ability to claim deductions.

The most common structure is to refinance your existing home loan into one split, then set up a second split for the investment property. Each split has its own loan account, its own interest calculation, and its own repayment schedule. That separation makes it straightforward to claim the full amount of interest on the investment loan while keeping your home loan quarantined for personal use.

If you are using equity from your home to fund the deposit, the loan taken against that equity should also be set up as a separate account linked to the investment purpose. That way, the interest on the equity release remains deductible.

What Tax Changes Affect New Investors?

From the 2027-28 income year, losses from established residential investment properties purchased after 12 May 2026 can only be offset against income from other residential properties, including capital gains.

That change removes the ability to offset rental losses against your salary or other income, a strategy commonly referred to as negative gearing. Losses can still be carried forward and used in future years when the property generates a profit or when you sell and realise a capital gain. Properties purchased before 12 May 2026, or those under contract at that date, are not affected. New builds, defined as dwellings constructed on previously vacant land or developments that increase the number of dwellings on a site, remain fully exempt and can continue to be negatively geared against all income.

For investors purchasing in Noosaville, where most available stock consists of established apartments, townhouses, and houses, the change means your rental losses after 30 June 2027 will not reduce your tax bill unless you own multiple properties or sell an investment property in the same year. That shifts the focus from short-term tax benefits to longer-term capital growth and rental yield.

Capital gains tax rules are also changing. From 1 July 2027, the 50 per cent discount on capital gains is replaced by cost base indexation and a 30 per cent minimum tax rate on real gains. For properties owned before 1 July 2027 and sold after that date, gains are split and taxed under the old rules for the period up to 1 July 2027 and under the new rules for the period after.

Fixed Rate or Variable Rate for Investment Property?

Variable rates give you flexibility to make extra repayments, redraw funds, and link an offset account without restriction.

Fixed rates lock in your repayment amount for a set term, usually between one and five years, but they come with limitations. Most fixed rate investment loans do not allow extra repayments beyond a small annual threshold, and offset accounts are either unavailable or do not reduce the interest charged. If you need to exit the loan early, break costs can apply, and those costs can be substantial if rates have fallen since you fixed.

For a first investment property, where your financial position and goals may still be taking shape, a variable rate or a 50/50 split usually offers the most practical balance. You can adjust your repayments as your income changes, access any surplus funds if needed, and avoid the penalties that come with breaking a fixed term.

Does Your Borrowing Capacity Change After Buying an Investment Property?

Your borrowing capacity will reduce once you take on an investment loan, even though the property generates income.

That reduction happens because lenders apply a serviceability test that includes the full loan repayment at the assessed rate, while only counting a portion of the rental income. The result is a net increase in your committed expenses, which lowers the amount you can borrow for future purchases, including upgrading your own home.

If you plan to buy another property within the next few years, either as an owner-occupier or a second investment, it is worth modelling that scenario before you commit to your first purchase. A borrowing capacity assessment can show you how much debt you can service across multiple properties and help you structure your loans to preserve flexibility for future growth.

Call one of our team or book an appointment at a time that works for you. We will walk through your current position, compare loan options from lenders across Australia, and help you set up a structure that supports both your immediate purchase and your longer-term property plans.

Frequently Asked Questions