Building a property portfolio is one of the most proven wealth-creation strategies available to Australians. But navigating investment property finance is significantly more complex than getting a standard home loan. The right loan structure from day one can mean the difference between a thriving portfolio and one that stalls at property number two.
Here’s what every aspiring property investor needs to know about investment property loans in Australia.
How Investment Loans Differ from Owner-Occupied Loans
Lenders typically charge higher interest rates for investment properties than for owner-occupied homes — usually 0.2% to 0.6% higher. This reflects the perceived higher risk of investment lending. However, the good news is that investment loan interest is generally tax-deductible, partially offsetting the higher rate.
Investment loans also tend to have stricter serviceability requirements. Lenders will only credit 80% of your rental income (to account for vacancies and expenses), and will assess your overall debt exposure more carefully if you have multiple properties.
Interest-Only vs Principal & Interest Loans
One of the most important decisions for property investors is whether to take an interest-only (IO) or principal and interest (P&I) loan.
Interest-only loans: You only pay the interest each month — your loan balance doesn’t reduce. This maximises your cash flow and tax deductions, which is why many investors prefer IO during the early years of holding an investment property. IO periods are typically available for 1–5 years, after which the loan reverts to P&I.
Principal & interest loans: You repay both principal and interest each month, reducing your balance over time. P&I rates are lower, and you build equity faster — which can be leveraged for your next property.
The right choice depends on your overall financial strategy, tax position, and cash flow. Many experienced investors use IO for investment properties while aggressively paying down their owner-occupied home loan.
Loan-to-Value Ratio (LVR) for Investment Properties
Most lenders will lend up to 80% LVR for investment properties without requiring LMI. Some will go to 90% with LMI. A few specialist lenders can go higher, but this is less common and more expensive.
If you have substantial equity in your existing home, you may be able to use a cross-collateralisation strategy — using your home as additional security for the investment loan. However, this approach has risks and should be carefully discussed with your broker.
Using Equity to Fund Your Next Purchase
One of the most powerful aspects of property investment is the ability to use the equity built in one property to fund the next. This is called leveraging.
If your home is worth $900,000 and you owe $400,000, you have $500,000 in equity. A lender may allow you to borrow up to 80% of the property value ($720,000), which means you can access up to $320,000 in usable equity — potentially enough for deposits and costs on one or two more investment properties.
Loan Structure: Getting It Right from Day One
How you structure your investment loans is critical for tax efficiency and future borrowing capacity. Key considerations include:
Keeping investment and owner-occupied debt separate — Never cross-contaminate these loans, as it can make your tax position complicated and potentially disadvantage you at tax time.
Using offset accounts strategically — Park any savings in an offset account against your owner-occupied loan (not your investment loan), since owner-occupied interest is not deductible but investment interest is.
Choosing the right lender order — Different lenders have different policies on how they assess existing investment debt. The order in which you approach lenders can significantly affect your borrowing capacity for future purchases.
Negative Gearing and Its Impact on Finance
When your investment property’s expenses (including loan interest) exceed the rental income, you’re negatively geared. The shortfall can be offset against your other income, reducing your tax bill. While negative gearing is a legitimate strategy, your lender will assess your ability to service the debt without relying solely on the tax benefit.
How Assembly Finance Helps Property Investors
We specialise in investment property finance. Our approach goes beyond finding a low interest rate — we structure your entire loan portfolio to maximise your borrowing capacity, tax efficiency, and long-term wealth creation potential.
Whether you’re buying your first investment property or expanding an existing portfolio, we’d love to help. Get in touch with James for a free investment strategy discussion.
