An investment property loan in Australia funds a residential or commercial property bought to lease out, not to live in. It looks similar to an owner-occupier mortgage on the surface — first registered mortgage, principal & interest or interest-only, standard maturities — but the regulatory frame around it, serviceability assessment, and lender appetite are all different.
This guide explains how the Australian investment property loan market actually works in 2026, where bank policy hits a wall, and where private investment property lenders fit for the files that bank policy can't accommodate.
What counts as an investment loan
A loan is classified as an investment loan when the property securing it is held for income or capital growth — rented to a third party, used as an Airbnb, or held vacant pending redevelopment with a future income intent. APRA prudential guidance requires Australian banks to track investor lending separately from owner-occupier lending, and to apply different serviceability calibrations to each.
The practical effect for a borrower: the same property, same deposit, same income — but a different rate, a different LVR cap, and a different serviceability buffer depending on whether the purpose code on the application is owner-occupied or investment. Investment loans typically price 0.15–0.45% above the equivalent owner-occupier rate at the same bank.
How banks underwrite an investment loan
Australian bank investment-loan underwriting is governed by APRA's prudential framework plus each bank's own credit policy. The components that matter on a file:
- Serviceability assessment rate. The bank assesses the borrower's ability to repay the loan at an assessment rate, not the actual rate. The assessment rate sits 3 percentage points above the actual rate per APRA guidance. A 6.5% loan is assessed at 9.5%. That number drives whether the file passes.
- Rental income haircut. Banks discount declared or estimated rental income — typically taking 70–80% of the gross rental amount to allow for vacancy, agent fees, and outgoings. Borrowers who model on 100% of gross rent overstate their borrowing capacity.
- Debt-to-income (DTI) cap. Most major banks apply a soft DTI cap around 6× — total liabilities divided by gross household income. Portfolio investors with five or more properties hit this cap before they hit serviceability.
- Maximum LVR. Investment metro houses up to 90% with LMI, 80% without; investment apartments to 80% with LMI; specialised security (SMSF holding trusts, NRAS, student accommodation) materially lower.
Where bank policy hits a wall
The four scenarios where a credible investor application gets declined or stalled at a major bank:
- Portfolio investors. A borrower with five existing investment properties hits the bank's DTI cap or its concentration limit on investor lending, regardless of how the cashflow stacks up. The file makes sense; the policy doesn't accommodate it.
- Self-employed borrowers with short trading history. Banks require 24 months of tax returns for full-doc serviceability. A borrower who's been self-employed for 14 months but earning strongly fails the file at policy, not at credit.
- SMSF investment. SMSF lending is a specialised niche the majors have either exited or written narrowly. The file needs an SMSF trust structure, a custodian, and a lender comfortable with the LRBA framework.
- Bridging between investment properties. The borrower has equity in an existing investment, contracted to sell, and is buying the next one before settlement. Banks usually require the sale to settle first; private lenders can bridge.
Where private investment lenders fit
Private credit covers the investment loans that bank policy can't. The structures we write most often:
- Portfolio top-up. A first mortgage on a new investment acquisition where the borrower's overall portfolio servicing is strong on commercial-reality basis, even though the bank serviceability model fails on assessment-rate buffer. Typically 12–24 month tenor, refinance to a major bank exit once the file matures.
- Self-employed first investment. A first mortgage for a recently self-employed borrower acquiring their first investment property, with a refinance exit at 24 months of trading history.
- Bridging investor-to-investor. Bridging finance where the borrower is contracted to sell one investment and settle on another inside the same month — typical 3–6 month bridge sized to the sale value, capitalised interest, exit on sale settlement.
- Second mortgage on an investment portfolio. Working capital release behind a bank first mortgage on an existing investment property — see the second mortgage guide for envelope and pricing.
Pricing on private investment loans in 2026 sits 7.85–10.5% per annum depending on file profile, LVR, security type, and exit quality. The premium over bank investment pricing reflects the willingness to underwrite outside the standard model.
Tax treatment is a separate question
Australian investment property loans attract interest deductibility and may qualify for negative gearing — but the tax position depends on the borrower's circumstances and the property's use, not on the lender. Get tax advice from a registered tax agent before structuring an investment file around an assumed tax outcome. Archer Wealth does not provide tax advice.
How files run at Archer
Archer Edge is the flagship first-mortgage product — investment files run through Edge with LVRs to 75% on metro residential, 65% on apartments, terms 12–24 months interest-only. Bridging between investments runs through Archer Flex; second mortgages on investment portfolios also through Flex. All files broker-introduced, indicative same-day, indicative equals formal.