Investment Property Loans Explained, How They Differ From a Standard Home Loan
Quick answer. An investment property loan is a home loan for a property you rent out rather than live in. Lenders assess it differently. They count only part of the expected rent, test your finances against higher rates, and apply new limits on high debt to income lending. The repayment structure you choose affects your cash flow for years.
How is an investment loan different from an owner occupier loan?
| Owner occupier loan | Investment property loan | |
|---|---|---|
| Purpose | Home you live in | Property you rent out |
| Rental income | Not applicable | Partly counted toward borrowing power |
| Interest rate | Owner occupier pricing | Generally higher than owner occupier pricing |
| Deposit | Varies by lender | Generally at least 5%, plus stamp duty and LMI |
| Repayment options | Usually principal and interest | Interest only is common |
| Tax | Generally not deductible | Speak to your accountant |
How much can you borrow for an investment property?
Stress testing. APRA's mortgage serviceability buffer remains at 3 per cent. Lenders test whether you could still afford repayments if rates were higher than they are today.
Rental income. Lenders do not count your full expected rent. APRA's view is that prudent lending applies a minimum haircut of 20 per cent on expected rental income, with larger haircuts where there is a higher risk of the property sitting vacant. Lenders are also expected to account for property costs such as strata fees.
Your existing debts. Every other loan, credit card limit and personal debt counts against your capacity, including loans on any property you already own.
The 2026 debt to income limit, what investors should know
From February 2026, APRA requires lenders to limit new mortgage lending with a debt to income (DTI) ratio of six or more to 20 per cent of all new mortgage lending. The limit applies to owner occupier and investor lending separately and is measured quarterly.
A DTI of six means total debt of six times your gross income. For example, someone earning $150,000 reaches that level at $900,000 of total debt.
This is not a ban. It caps how much high DTI lending each lender can write. APRA expects it to have a greater impact on investors, who typically borrow at higher DTI ratios than owner occupiers. Loans for the purchase or construction of new dwellings are exempt. For investors building a portfolio, choosing the right lender at the right time matters more than it used to.
Interest only vs principal and interest
Investors often choose interest only repayments to keep monthly costs down. Here is how the two compare, based on Moneysmart guidance.
| Interest only | Principal and interest | |
|---|---|---|
| Monthly repayments | Lower during the interest only period | Higher from day one |
| Loan balance | Does not reduce during the interest only period | Reduces with every repayment |
| Total interest | The rate could be higher, so you pay more over the life of the loan | Generally lower overall |
| After the period ends | Repayments increase, which may not be affordable | No payment jump |
| Equity | Relies on the property increasing in value | Built through repayments and growth |
Moneysmart also flags a further risk. If the property does not increase in value during the interest-only period, you will not build up any equity, which can put you at risk if there is a market downturn or your circumstances change.
The right choice depends on your cash flow, how long you plan to hold the property and your wider goals. Review it as your situation changes.
Using equity to buy an investment property
Many investors fund their deposit from equity in a home they already own rather than from savings.
Usable equity is typically the amount a lender will let you borrow against your property, minus what you already owe. Here is a simple example. Your home is valued at $900,000 and a lender will lend up to 80% of that value, which is $720,000. You owe $400,000, so your usable equity is about $320,000. Lender limits and valuations vary, so your actual figure may differ.
Cross collateralisation vs standalone loans
When you use equity, the new loan can be secured against both properties, which is called cross collateralisation. Alternatively, each property can secure its own loan. Linking properties can simplify a purchase, but it also ties them together, which can reduce your flexibility if you later want to sell or refinance one of them. A broker can explain which structure suits your plans.
Choosing investment property lenders
Investment property lenders differ in how they treat rental income, how much they will lend against a property, their interest only terms and their capacity for higher DTI lending in a given quarter. Two lenders can assess the same application very differently. That is why comparing across a panel matters more for investors than for most borrowers.
When to bring in a financial adviser or accountant
Moneysmart notes that investors may be able to claim higher tax deductions on an investment property with an interest only loan. How that applies to you, including negative gearing and depreciation, depends on your personal circumstances, and a mortgage broker does not advise on tax. Speak with your accountant or a licensed financial adviser before settling on a loan structure.
How a mortgage broker for investment property helps
A broker compares investment lenders against your income, existing loans and plans, works out your usable equity, structures loans to keep flexibility, and manages the application through to settlement. Mortgage brokers are required by law to act in the best interests of consumers when providing credit assistance.
Frequently asked questions
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No. APRA's guidance is that lenders discount expected rent by at least 20 per cent, and more for properties at higher risk of vacancy.
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It depends on the lender and your situation, but you will generally need a deposit of at least 5%, plus stamp duty and LMI.
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Not by itself. It caps the share of each lender's new lending at six times income or more, rather than banning those loans.
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Generally yes. Check your loan terms and any costs with your broker first.
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Often yes, subject to valuation, the lender's limits and your borrowing capacity.
Talk to Neo Finance Group
Planning your next investment property? Speak with our team about how an investment loan could be structured for your situation.
This article is general information only and does not take into account your objectives, financial situation or needs. It is not tax advice. Interest rate and deposit figures are general guidance current as at the publish date and can change without notice. Connective Credit Services Pty Ltd, Australian Credit Licence Number 389328.
