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Home loans · Investment loans

Investment property loans: how lenders assess them

An investment loan is a home loan for a property you will rent out. Lenders treat it differently from a home you live in: they count the rent cautiously, look harder at your total debt, and usually price it differently.

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When an investment loan makes sense, and when to wait

Usually a sound position to borrow from

  • You could keep paying the loan if the property sat empty for a month or two, or the rent dropped.
  • You have a deposit or usable equity, plus savings left over for repairs and holding costs.
  • Your own home loan, if you have one, is comfortably under control.

Worth pausing on

  • The plan only works if the rent covers every cost and prices keep rising.
  • You would need to borrow the lender’s maximum to make it happen.
  • The main reason is a tax outcome you haven’t checked with a tax adviser.
  • You may move into the property later. That changes the loan, the tax position and any concessions, so plan it before you buy.
  • You hold a temporary visa. Foreign investment rules limit what temporary residents can buy; see visa and PR home loans.

What lenders look at on an investment loan

  • Rent, at a discount

    Lenders count only part of the rent, to allow for vacancies, agent’s fees and maintenance. The share differs between lenders. Expect to provide a rental appraisal or the current lease.
  • Your total debt

    Every loan and card limit counts, including other investment loans. Since 1 February 2026, APRA has capped the share of each bank’s new loans going to borrowers with debt of six times their income or more at 20%, with investor lending counted separately.

  • The serviceability buffer

    Banks regulated by APRA test whether you could still repay if the rate were at least 3 percentage points higher than the loan’s rate. This applies to every loan you hold, not just the new one.
  • Deposit or equity

    Twenty per cent of the price plus purchase costs avoids LMI with most lenders. Equity in your home can stand in for cash, and some lenders will go above 80% with LMI.
  • Interest-only or principal and interest

    Interest-only repayments are lower for a set period, then rise when the period ends. Lenders assess whether you can afford the higher repayments that follow.
  • The property type

    Some lenders limit lending, or require a bigger deposit, for very small apartments, student accommodation, serviced apartments and some regional towns.

Worked example: using equity to buy a $650,000 investment unit

An owner-occupier has a home valued at $1,000,000 with $500,000 owing. They want to buy a $650,000 unit to rent out, without using their cash savings for the deposit.

Equity release plus an investment loan
StepAmount
Home’s value (lender’s valuation)$1,000,000
80% of the home’s value$800,000
Less the current home loan−$500,000
Usable equity at 80%$300,000
Deposit on the unit (20% of $650,000)$130,000
Allowance for duty and purchase costs (assumed)$30,000
Equity loan, secured by the home$160,000
Investment loan, secured by the unit (80%)$520,000
Total new borrowing$680,000
Assumptions
  • The $30,000 purchase-cost allowance is for illustration only. Check transfer duty with the NSW stamp duty calculator and get a conveyancing quote.
  • Both loans stay at or under 80% of each property’s value, so LMI would not usually apply.
  • Equity is only part of the test: the lender must also be satisfied you can repay all your debts, including the new loans.
  • No interest rates or rent figures are assumed.

After settlement, the home carries $660,000 of debt (66% of its value) and the unit carries $520,000 (80%). Across both properties, that is $1,180,000 owed on $1,650,000 of property, or about 71.5%.

Keeping the equity loan as its own split, separate from the home loan, makes it easier to show which borrowing was for the investment. Some lenders offer to secure both loans against both properties, known as cross-collateralisation. It can look simpler at the start but makes it harder to sell one property or move one loan later. We explain the trade-off before you choose.

Tax is a separate conversation

Negative gearing, depreciation and which loan to pay down first are tax questions. A broker can arrange the loan; a registered tax agent or accountant should advise on the tax. Speak to them before you buy, because the way the loans are set up at the start is hard to undo.

The general rules are on the ATO’s website. Interest on a loan used to buy a rental property can generally be claimed while the property is rented or genuinely available for rent. Interest on the loan for a home you live in can’t. Where one loan is used for both private and investment purposes, the interest has to be split between the two.

Documents to have ready

  • A rental appraisal from a local agent for the property you are buying, or the current lease if it is already tenanted.
  • For properties you already rent out: the leases, recent rental statements and the loan statements.
  • Your two most recent payslips and your myGov income statement, or two years of tax returns and notices of assessment if you are self-employed.
  • Your latest tax return if you already own an investment. Lenders often use it to confirm existing rental income.
  • Statements for your home loan, credit cards and any other loans.
  • Your passport or driver licence, and your visa grant notice or a VEVO check if you aren’t a citizen.
  • The contract of sale once you have one. For off-the-plan, the contract and the expected completion date.

Common investment loan mistakes

  1. Mixing the deposit into your home loan. Redrawing from the home loan for an investment deposit can blur which interest relates to what. Ask your tax adviser how to set it up first.
  2. Counting the full rent in your own budget. Lenders don’t, and you shouldn’t either. Allow for vacancies and costs.
  3. Choosing interest-only without an end plan. Know what the repayment becomes when the interest-only period finishes, and whether you can afford it.
  4. Cross-collateralising by default. It is easier to keep each property’s loan separate from the start than to untangle them later.
  5. Forgetting the effect on your next loan. An investment loan reduces what you can borrow for your own home later. Plan the order of purchases.

Questions about investment loans

How much deposit do I need for an investment property?

Twenty per cent of the price plus purchase costs avoids LMI with most lenders. Some lenders will lend more with LMI. Equity in a property you already own can replace some or all of the cash, as long as you can afford the repayments on the combined debt.

Can rent help me qualify for the loan?

Yes. Lenders add part of the expected rent to your income when they assess the loan. They use only part of it, and the share varies between lenders, so the same property can produce different borrowing amounts.

Should I choose interest-only repayments?

Interest-only keeps repayments lower for a set period, but the loan balance doesn’t fall during that time, and repayments rise when it ends. Lenders assess you on the higher repayments that follow. Whether interest-only suits your tax position is a question for your tax adviser.

Is the interest on an investment loan tax deductible?

The ATO says interest on a loan used to buy a rental property can generally be claimed while the property is rented or genuinely available for rent. How that applies to you, including negative gearing, is a question for a registered tax agent.

Can I keep my current home as an investment and buy a new home?

Often, yes. Lenders assess both loans and count part of the rent from the old home. On tax, the ATO says interest on the old home’s loan may become deductible once it is rented, while interest on the loan for the new home you live in is not. Talk to your tax adviser before restructuring either loan.

Are investment loans more expensive?

Lenders often charge investors a different, usually higher, rate than owner-occupiers, and interest-only loans can be priced higher again. We compare the full cost, including fees, across the lenders on our panel.

Test an investment plan with Sulav

We work through your equity, your total debt and how lenders would count the rent, before you start looking at properties.

Sources

  1. APRA’s System Risk Outlook, May 2026 (mortgage serviceability buffer)Australian Prudential Regulation Authority (APRA) · Checked
  2. APRA to limit high debt-to-income home loans to constrain riskier lendingAustralian Prudential Regulation Authority (APRA) · Checked
  3. Interest expenses (residential rental properties)Australian Taxation Office · Checked
  4. Interest-only home loansMoneysmart (ASIC) · Checked
  5. Land tax thresholds and ratesRevenue NSW · Checked
  6. Lenders mortgage insurance (LMI)Moneysmart (ASIC) · Checked