Investment Loan Approval: What Lenders Check First

Investment loan approval depends on serviceability, deposit size, and the rental income the property can generate.

Lenders assess your ability to repay the loan at an interest rate three percentage points above the actual product rate, even if you're applying for a variable rate currently sitting lower. That buffer has been in place since October 2021 and applies to every new investment loan application across the Central Coast. If you're looking at a property in Terrigal or Avoca, the lender isn't just checking whether you can afford today's repayments. They're checking whether you could still afford those repayments if rates climbed sharply in the first months after settlement.

Rental income is included in the serviceability calculation, but most lenders apply a discount of 20 per cent to account for vacancy periods, maintenance costs, and property management fees. On a Terrigal unit renting for $650 per week, the lender might credit you with $520 per week in serviceability calculations. That adjustment matters when your borrowing capacity sits close to the upper limit.

Deposit Requirements and LVR Limits

Most lenders cap investment loans at 90 per cent LVR, and many pull back to 80 per cent depending on your income profile and existing debt.

Where the loan amount pushes above 80 per cent LVR, lenders mortgage insurance becomes mandatory. The premium is calculated on a sliding scale and paid upfront, either added to the loan or settled from your own funds. On a property valued at $850,000 with a 10 per cent deposit, LMI can add several thousand dollars to your upfront costs. Some lenders offer slightly better LMI pricing for investors with strong income and low existing liabilities, but the premium remains a material cost.

We regularly see investors on the Central Coast using equity from their owner-occupied home to fund the deposit on a rental property in suburbs like Erina or Kincumber. That approach keeps the LVR on the new purchase below 80 per cent and avoids LMI altogether, provided the combined loan-to-value ratio across both properties sits within the lender's risk appetite. If you're exploring that structure, the refinancing page covers how equity release works in practice.

Debt-to-Income Limits That Apply From February 2026

Lenders can now allocate only 20 per cent of new investment loans each quarter to borrowers with total debt of six times their gross income or more.

If your household earns $120,000 and you're applying for an investment loan that would push your total borrowing above $720,000, that application falls into the high debt-to-income category. The lender may still approve it, but only if they haven't already allocated their full 20 per cent quota for that quarter. The limit applies separately to investment lending and owner-occupier lending, so your investment loan application competes only with other investment loan applications, not with the wider home loan portfolio.

For investors with multiple properties or high existing liabilities, the debt-to-income limit can reduce borrowing capacity even when serviceability at the three percentage point buffer would otherwise allow the loan to proceed. In our experience, applicants close to the six-times threshold benefit from paying down non-deductible debt or deferring the purchase until income increases or other liabilities reduce.

Rental Income and Vacancy Adjustments

Lenders assess rental income using either a signed lease or a rental appraisal from a licensed property manager.

If you're buying a property already tenanted, the existing lease provides the rental figure the lender will use. If you're buying vacant or off-the-plan, you'll need a rental appraisal on the lender's template, completed by a property manager in the suburb where the property sits. For a two-bedroom unit in Terrigal, that appraisal might show a weekly rent of $600 to $650 depending on the property's condition, proximity to the beach, and whether it includes a garage or secure parking.

The 20 per cent vacancy discount then applies across almost all lenders. Some lenders increase that discount to 25 per cent for properties in regional areas or postcodes with historically high vacancy rates, though the Central Coast generally sits within the standard 20 per cent band. For more detail on structuring your investment loan application, the investment loans page outlines product features and interest-only options.

How Interest-Only Periods Affect Approval

Most lenders offer interest-only periods of up to five years on investment loans, but longer interest-only terms attract higher capital requirements under the prudential framework.

An interest-only period reduces your monthly repayment and can improve cash flow, particularly in the first few years when rental income may not fully cover all holding costs. On a loan amount of $680,000 at current variable rates, switching from principal and interest to interest-only can reduce the monthly repayment by several hundred dollars. That difference matters if you're holding multiple properties or managing other debt commitments.

Lenders assess interest-only applications using the same serviceability buffer, but the repayment is calculated on an interest-only basis for the chosen period, then reverts to principal and interest for the remaining loan term. Some lenders also require a lower LVR for interest-only lending, particularly where the applicant already holds other investment properties.

Tax Treatment of Investment Loans Acquired After May 2026

Interest on investment loans remains deductible, but losses on residential investment properties acquired after 7:30pm AEST on 12 May 2026 are now quarantined.

From the 2027-28 income year, those losses can only be offset against income from other residential investment properties, including capital gains on residential property sales. Excess losses carry forward to future years. The change doesn't affect the deductibility of interest itself, and it doesn't apply to properties you already owned or had under contract at that date. New builds remain exempt from the quarantining rule, so an investor buying a newly constructed townhouse in Wamberal can still offset losses against salary income.

Most lenders don't adjust their serviceability policies based on your tax position, but the quarantining of losses does affect your after-tax cash flow. If you were relying on negative gearing to reduce your overall tax liability and improve cash flow, that benefit now only applies if you hold other residential property income or gains to offset. The tax savings calculator can help you model the after-tax cost of holding an investment property under the current rules.

Capital Gains Tax Changes From July 2027

From 1 July 2027, capital gains on investment properties will be taxed using cost base indexation and a 30 per cent minimum rate, replacing the 50 per cent discount for the portion of the gain accruing after that date.

If you buy an investment property now and sell it in five years, the gain accruing up to 1 July 2027 will be taxed under the existing 50 per cent discount method, and the gain accruing after that date will be indexed to CPI with a minimum 30 per cent tax rate applied to the real gain. You can choose to obtain a market valuation as at 1 July 2027 or use an ATO apportionment formula. Investors purchasing eligible new builds can choose between the indexed method and the 50 per cent discount at the time of sale, giving more flexibility depending on which method produces the lower tax.

The change doesn't affect loan approval, but it does affect the long-term return you can expect from the property. Investors buying established properties in Terrigal or Erina should factor in the adjusted tax treatment when modelling their investment over a five or ten-year hold period.

What Lenders Want to See in Your Application

A complete application includes recent payslips, tax returns, bank statements showing rental income if applicable, a signed contract of sale, and a rental appraisal or existing lease.

Lenders also check your existing liabilities, including credit cards, personal loans, and other mortgages. Even if your credit card has a zero balance, the lender will assess serviceability as though you've drawn the full limit. In our experience, applicants with multiple credit cards or high unused limits can improve their borrowing capacity by closing or reducing those limits before lodging the investment loan application.

If you're self-employed, most lenders require two years of tax returns and may also request a notice of assessment or business financials. Some lenders accept a single year of returns for applicants with a strong income history and low LVR, but that's the exception rather than the standard policy. For borrowers with more complex income structures, including those earning rental income from existing properties, working with a broker who knows which lenders assess that income favourably can reduce the time to approval and improve the loan amount on offer. The mortgage broker Central Coast page has more on how we structure applications for local investors.

Call one of our team or book an appointment at a time that works for you.

Frequently Asked Questions