When you go from buying a home to live in to buying a property to rent out, the way lenders look at your loan changes. The loan itself is structured differently, and the tax rules that apply to the property shift too. It is not just a bigger version of a standard home loan – it is a different product with its own requirements and opportunities.
How investment loans differ from owner-occupier loans
The most immediate difference is the interest rate. Investment loans almost always carry a higher rate than owner-occupier loans. Lenders see investment lending as riskier – if you hit financial trouble, you are more likely to default on an investment property than on the roof over your head. The exact margin varies between lenders and over the economic cycle, but you can expect an investment rate to sit noticeably above advertised owner-occupier rates.
Borrowing power is assessed differently too. Lenders will factor in the rental income the property could generate, but not all of it – they typically use only part of the expected rent in their calculations, after allowing for vacancies, management fees and maintenance. At the same time, the debt itself is added to your overall liabilities, which can reduce how much you can borrow for your own home later if you hold both loans.
When you compare loans, look beyond the headline interest rate. The comparison rate published by lenders bundles the interest rate with most standard fees into a single percentage figure, which can help you compare the true cost of different loan offers. Also pay attention to loan features: an offset account linked to an investment loan can reduce the interest you pay while keeping savings within easy reach, but the account may come with higher fees that only make sense if your offset balance stays high enough to earn back the cost.
Interest‑only repayments and investment loans
Many investors choose an interest‑only repayment structure, at least for the first few years. During an interest‑only period, your monthly payments cover only the interest charge – you do not repay any of the principal (the amount borrowed). This keeps your cash flow lighter in the short term, which can be valuable while you focus on other investments or while the property is being tenanted at a lower initial rent.
Interest‑only periods usually run for a set number of years – five is common – after which the loan reverts to principal‑and‑interest repayments. Your repayments will go up sharply at that point because you must start paying down the loan balance over the remaining term. The total interest cost over the life of the loan is higher than if you had paid principal from the start, so it is wise to be realistic about whether the strategy works for your numbers in the long run.
Some investors plan to sell the property before the interest‑only period ends, hoping that capital growth will deliver the return. Others budget to switch to principal‑and‑interest at the reset date. Either way, the strategy relies on having a clear exit plan, because the higher future payments can strain a budget if you have not prepared for them.
Tax on rental income and expenses
Tax is where investment property starts to look different from your own home. The Australian Taxation Office makes it clear: rental income is assessable income and must be declared on your tax return. At the same time, many of the expenses you incur to earn that rental income can be claimed as deductions.
The key principle is straightforward: you can claim expenses that relate directly to producing rental income, provided the property is rented or genuinely available for rent. That includes loan interest, council rates, insurance, property management fees, repairs and maintenance, and depreciation of assets such as carpets and appliances. Capital works – like a new roof or an extension – are generally claimed over time as a capital works deduction, not as an immediate repair.
If you take out an investment loan, the interest you pay is normally deductible, but only to the extent the loan funded the income‑producing property. If you redraw equity for personal purposes – say, to buy a car – that portion of the interest is not deductible. Keeping clear records and, where possible, a separate loan account for the investment, helps keep the tax treatment clean.
There is a common trap around claiming the property as “available for rent” while actually using it yourself for extended periods. The ATO looks at the facts: if you or your family use the property for holidays at market rent, you may be able to claim a proportion of expenses, but you must reduce the deductions to reflect private use. If you use it for free, deductions are limited to the periods the property was genuinely available to tenants.
Capital gains tax also applies when you sell an investment property, generally on any gain above the cost base. However, a principal place of residence that was never used to produce income is usually exempt. The moment you treat a property as an investment, the CGT picture changes, and you may want professional advice to understand the numbers before you decide to rent out a home you previously lived in.
What lenders look for in an investment loan
Lenders will want to see a bigger deposit than they ask owner‑occupiers for. Many require at least a 10% deposit, and to avoid Lenders Mortgage Insurance you often need 20% or more. The deposit requirements, together with higher interest rates, mean the upfront and ongoing costs are steeper.
Your existing financial position is also tested. The lender will assess your ability to service the new loan on top of any existing debts, using an assessment rate that is higher than the loan’s actual rate – a buffer designed to make sure you could still afford the loan if interest rates rise. Rental income is included in the calculation, but as noted earlier, not at 100% of the expected market rent.
Getting the right help
Working through investment loan options can feel like balancing a lot of moving parts: loan type, repayment structure, tax deductions and future plans. OZ Home Loan provides general Australian home loan information for multilingual borrowers and may be able to help you understand the landscape and connect you with further assistance within its scope.
OZ Home Loan is not a lender, does not promise approval, particular rates, or any specific savings, and does not give personal financial advice. Every borrower’s situation is different, and the right choice turns on your numbers, your goals and the tax rules that apply to you. If you decide to explore investment lending further, consider speaking with a licensed finance or tax professional who can look at your individual circumstances.
General information only. Not financial advice. Always consult a licensed mortgage broker or financial adviser before making decisions about investment lending or taxation.