Investment Loan Approval: The Risks and Rewards

Investment loan approval is harder to secure than owner-occupier approval because lenders assess rental income more conservatively and apply higher risk weightings to investor borrowing.

The difference shows up in three places: how lenders calculate your income, the interest rate buffer they apply when testing serviceability, and the capital they hold against investor loans under prudential rules. For hospital pharmacists considering property investment, understanding these differences before you apply can prevent delays or declined applications.

How Lenders Assess Your Income When You Apply for an Investment Loan

Lenders typically only count 80 per cent of projected rental income when calculating your borrowing capacity. The 20 per cent reduction is intended to account for vacancy periods, property management costs and maintenance. Your salary as a hospital pharmacist is counted at full value, but rental income is discounted before it enters the serviceability calculation.

Consider a pharmacist earning $115,000 per year who wants to purchase a rental property expected to generate $550 per week in rent. The lender applies $550 multiplied by 52 weeks, which equals $28,600 per year, then reduces that figure by 20 per cent to $22,880. That adjusted rental income is added to your salary and tested against all your existing commitments, including any current home loan, car loan or credit card limits.

Lenders also test your ability to service the investment loan at a rate that is 3.0 percentage points above the actual loan product rate. This buffer has been mandated by the Australian Prudential Regulation Authority since October 2021 and applies to both owner-occupier and investor lending. If you are offered a variable rate of 6.2 per cent, the lender assesses whether you can afford repayments at 9.2 per cent.

Debt-to-Income Limits and How They Affect Hospital Pharmacists

From 1 February 2026, authorised deposit-taking institutions have been required to limit new investor loans to borrowers with a debt-to-income ratio of six times or greater to no more than 20 per cent of their total investor lending each quarter. The limit applies separately to investor and owner-occupier portfolios.

For a hospital pharmacist earning $115,000 per year, a DTI of six times would mean total borrowing across all loans of $690,000. If you already have a home loan of $450,000 and want to borrow $300,000 for an investment property, your total debt would be $750,000, which puts you above the six-times threshold. You may still be approved, but your application will count toward the lender's 20 per cent allocation, and some lenders have tightened their credit policy further to avoid exceeding that limit.

The DTI calculation includes your existing home loan, any car loans, personal loans, outstanding HECS-HELP debt (calculated as a percentage of income rather than a dollar amount) and the investment loan you are applying for. Credit card limits are also included, even if the balance is paid in full each month.

Interest-Only Loans and How They Change Serviceability

Many property investors choose interest-only loans for the first few years to reduce holding costs and maximise tax-deductible interest. Lenders assess interest-only applications using the same 3.0 percentage point buffer, but they also test your ability to repay principal and interest over the remaining loan term once the interest-only period ends.

If you apply for a 30-year loan with a five-year interest-only period, the lender will assess whether you can afford principal and interest repayments over the remaining 25 years at the buffered rate. Because the loan is being repaid over a shorter period, the monthly repayment used in the serviceability calculation is higher than it would be for a 30-year principal and interest loan.

Under Prudential Standard APS 112, interest-only loans attract higher risk weightings than principal and interest loans at the same loan-to-value ratio. Lenders hold more capital against these exposures, which feeds through to pricing. Interest-only rates are typically 0.3 to 0.6 percentage points higher than variable principal and interest rates, depending on the lender and your LVR.

Established Property Purchased After 12 May 2026 and the Change to Negative Gearing

If you purchase an established residential investment property after 7:30pm AEST on 12 May 2026, losses from that property can only be deducted against income from other residential properties from the 2027-28 income year onward. You cannot offset those losses against your salary, which changes the after-tax cash flow of holding the property.

A hospital pharmacist earning $115,000 per year who purchases an established property in the current year and incurs a net rental loss of $8,000 per year would, under the previous rules, have been able to reduce their taxable income to $107,000. From the 2027-28 income year, that $8,000 loss is quarantined and can only be offset against rental income from other properties or against a capital gain when the property is eventually sold. Excess losses are carried forward indefinitely.

Properties you owned or contracted to purchase before 7:30pm AEST on 12 May 2026 are grandfathered and continue to be negatively geared under the old rules until you sell. Eligible new builds purchased after that date remain fully negatively gearable. An eligible new build is a dwelling constructed on previously vacant land or a development that increases the number of dwellings on a site. Knock-down rebuilds that do not increase dwelling numbers are not eligible.

The change affects how lenders assess after-tax cash flow and may influence their willingness to lend for established properties where the rental yield is low. Some lenders have begun asking borrowers whether the property being purchased is a new build or established dwelling as part of the application process.

Capital Gains Tax From 1 July 2027 and What It Means for Your Investment Strategy

From 1 July 2027, capital gains on residential investment properties are taxed differently. For gains accruing after that date, cost base indexation using the Consumer Price Index replaces the 50 per cent discount, and a 30 per cent minimum tax rate applies to real gains for most taxpayers. Gains accruing before 1 July 2027 are taxed under the existing rules.

If you sell an investment property in 2030 that you purchased in 2027, you will need to apportion the gain between the pre-1 July 2027 period and the post-1 July 2027 period. For the post-1 July 2027 portion, you index the cost base by inflation and pay tax on the above-inflation gain only. If your effective tax rate on that indexed gain is below 30 per cent, the minimum rate applies.

For eligible new builds, you can choose between the indexed cost base method and the 50 per cent discount method at the time of sale, whichever produces the lower tax outcome. The choice is made on disposal, not at the time of purchase.

This change does not affect loan approval directly, but it does alter the long-term return profile of property investment, particularly for established dwellings in areas where capital growth has historically been driven by price appreciation rather than rental yield.

Using Equity From Your Current Property to Fund the Deposit

Many hospital pharmacists use equity release from their current home to fund the deposit on an investment property. Lenders allow you to borrow against the equity in your existing property, provided your total borrowing across both properties does not exceed your serviceability limit.

If your home is valued at $800,000 and your current loan balance is $400,000, you have $400,000 in equity. Lenders typically allow you to borrow up to 80 per cent of the property value without paying Lenders Mortgage Insurance, which in this case would be $640,000. Subtracting your current loan balance of $400,000 leaves $240,000 in accessible equity. You can use that equity as a deposit on the investment property, but you will need to factor in stamp duty, legal costs and any LMI premium if your combined LVR across both properties exceeds 80 per cent.

Lenders assess both loans together when calculating serviceability. Your existing home loan and the new investment loan are both tested at the buffered rate, and rental income from the investment property is included at 80 per cent of its projected value. If your combined borrowing pushes your DTI above six times your income, you may fall within the 20 per cent allocation limit described earlier.

Refinancing an Investment Loan After Approval

If your current investment loan rate is higher than what is available elsewhere, or if your lender's serviceability policy has become more restrictive, investment loan refinancing may allow you to reduce your rate or access additional equity for portfolio growth. Refinancing an investment loan is assessed using the same income, DTI and serviceability buffer rules as a new application.

Some lenders offer rate discounts for borrowers who refinance multiple loans or consolidate their owner-occupier and investor lending with a single institution. If you hold a home loan and an investment loan with different lenders, consolidating both with a single lender may reduce your weighted average rate and simplify your reporting obligations for tax purposes.

Before refinancing, check whether your current loan has any break costs if you are exiting a fixed rate early, and confirm that the rate saving or equity release justifies the legal and application costs of switching lenders.

Investment loan approval depends on how lenders assess your income, apply the serviceability buffer, and respond to regulatory limits on high-DTI lending. For hospital pharmacists, a steady salary helps, but rental income is discounted and existing debt is weighted heavily in the calculation. Recent changes to negative gearing and capital gains tax also affect the after-tax return on established properties purchased after 12 May 2026. Call one of our team or book an appointment at a time that works for you to discuss your borrowing capacity and the loan options available before you start looking at properties.

Frequently Asked Questions