How lenders assess risk when you apply for an investment loan
Lenders look at rental income differently than your salary. They assume the property won't always be tenanted, so they apply a vacancy factor and usually only count 80% of the expected rent when calculating your borrowing capacity. This approach means two couples with identical incomes could borrow different amounts depending on whether they're buying their first home or their first investment property.
Consider a couple earning $150,000 combined who want to buy an investment property. If the property generates $600 per week in rent, the lender won't add $31,200 to their income. They'll discount it to around $24,960, and sometimes less depending on the property type and location. That reduced figure affects how much you can borrow and whether you need to adjust your deposit or property selection.
Lenders also assess whether the property itself presents risks. A one-bedroom apartment in an oversupplied area will be treated differently than a three-bedroom house in an established suburb with strong rental demand. Loan to value ratio matters too. If you're borrowing more than 80% of the property value, you'll pay Lenders Mortgage Insurance (LMI), and some lenders will apply stricter servicing calculations or won't lend on certain property types at higher LVRs.
What the 2026-27 Federal Budget changes mean for new investors
If you're thinking about buying your first investment property, the Budget changes from 12 May 2026 are worth understanding before you commit. From 1 July 2027, if you buy an established residential property after Budget night, you won't be able to claim losses against your wage income. Those losses can only offset rental income or capital gains from other residential property, and any unused losses carry forward to future years.
The 50% capital gains tax discount is also being replaced with a system based on inflation indexation, and a minimum 30% tax will apply to capital gains. If you buy a new build, you'll have the option to choose between the old 50% discount or the new arrangements, whichever works out in your favour. This creates a distinct incentive to consider new construction over established property if tax efficiency is part of your strategy.
These changes don't affect properties bought before 13 May 2026, so anyone who purchased before that date still has access to the existing negative gearing and CGT arrangements. But if you're buying now, your accountant or financial adviser should be part of the conversation early, not after you've signed a contract.
Assessing your own capacity to carry the loan
Your ability to hold an investment property through periods of vacancy, rate rises, or unexpected repairs matters more than what a lender approves. Lenders assess serviceability based on a buffer rate that's typically 3% above the actual rate you'll pay. That buffer is there to make sure you can still make repayments if rates climb, but it doesn't account for your other financial commitments or how tight your budget actually feels month to month.
In our experience, couples who succeed with their first investment property have worked out a realistic picture of what happens if the property sits vacant for six weeks or the hot water system fails. They know whether they can cover the mortgage from their own income without relying on rent, at least temporarily. If your budget depends on rental income from day one and has no margin for error, the risk sits with you, not the lender.
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An interest only loan can reduce your monthly repayment and improve cash flow in the early years, but it also means you're not reducing the debt. That structure works if your goal is to hold the property long-term and let capital growth do the work, but it increases your exposure if property values stagnate or rental demand softens. Principal and interest repayments build equity over time, which gives you more options if you want to leverage that equity later or refinance to better loan terms.
Some investors split their loan between fixed and variable portions to balance certainty with flexibility. A fixed portion locks in your repayment for a set period, which helps with budgeting, while the variable portion lets you make extra repayments or access features like an offset account. That approach can reduce risk if rates rise, but fixed rates come with break costs if you need to exit early, and they typically don't allow the same level of flexibility during the fixed term.
Location and property type influence lender appetite
Lenders apply different risk weightings depending on where the property is and what type it is. A unit in a regional area with weak employment prospects will be treated more cautiously than a house in an inner-ring Melbourne suburb with consistent demand. Some lenders won't lend on studios or serviced apartments at all, while others will lend but cap the LVR at 70% or require a larger deposit.
If you're looking at an apartment in a building with more than 50% non-owner-occupied properties, some lenders will decline the application outright or apply stricter terms. The same goes for properties with short lease terms, structural issues flagged in a building report, or locations that have seen sharp price falls in recent years. These aren't arbitrary decisions. Lenders are trying to protect themselves against properties that may be difficult to sell if they need to recover the debt.
This is where speaking to a mortgage broker who understands lender policy across the market becomes useful. Not all lenders assess risk the same way, and what one treats as high-risk, another may accept with standard terms. Knowing which lender to approach with your specific property type and deposit level can be the difference between approval and decline.
Structuring the loan to match your strategy
How you structure your investment loan should reflect what you're trying to achieve. If your goal is passive income and steady cash flow, a principal and interest loan on a variable rate gives you the ability to pay down debt faster and adjust repayments as your income changes. If your goal is to build a portfolio and use equity from this property to fund the next purchase, an interest only loan with an offset account can preserve cash and keep your options open.
You'll also want to think about whether the loan should be in both names or just one, depending on your tax positions and how income will be split. If one of you earns significantly more than the other, there may be a tax advantage in structuring ownership and the loan to maximise claimable expenses for the higher earner. That's a conversation to have with an accountant before you apply, not after settlement.
Some lenders allow you to split your loan into multiple accounts with different features or rate types, which can give you more control over repayments and tax deductions. For example, you might fix part of the loan for stability and keep part variable so you can make lump sum repayments without penalty. That flexibility can reduce risk and improve your ability to adapt if your circumstances change.
What genuine savings and deposit source mean for your application
Lenders want to see that your deposit has been saved over time, not borrowed or gifted at the last minute. Genuine savings usually means funds held in your account for at least three months, built up through regular contributions. If your deposit comes from a bonus, tax refund, or sale of another asset, the lender will want to see evidence of where it came from and that it wasn't borrowed.
If part of your deposit is a gift from family, some lenders will accept it, but they'll require a statutory declaration confirming it's not a loan that needs to be repaid. Others won't accept gifted funds at all for investment purchases and will require the full deposit to come from your own resources. That's a key difference between buying your first home and buying an investment property, and it can affect your timeline if you're still building your deposit.
If you're planning to use equity from your existing home as your deposit, the lender will assess your total borrowing across both properties. That means your serviceability needs to cover both loans, and you'll need a valuation on the property you're borrowing against. Releasing equity can be a powerful way to enter the investment market without needing a cash deposit, but it also increases your overall debt and the risk you're carrying if property values fall.
How to position your application to improve your chances
Lenders assess investment loan applications more conservatively than owner-occupied loans, so the strength of your financial position matters. That means minimising other debts before you apply, keeping your credit file clean, and being able to demonstrate stable income over at least the past two years. If you've changed jobs recently or taken on new credit commitments, that can affect how the lender views your application.
If you're self-employed, the assessment process becomes more detailed. Most lenders will want two years of tax returns and financials, and they'll average your income across that period. If your income has dropped in the most recent year, that average will be lower, which reduces your borrowing capacity. Some lenders offer low doc options for self-employed borrowers, but they usually come with higher rates and lower LVRs, so they're not always the right fit for a first investment purchase.
You'll also want to make sure the property you're buying meets the lender's security requirements. That means ordering a property valuation and building inspection before you go unconditional, so you know there are no issues that could derail the application. If the valuation comes in lower than the purchase price, you'll need to make up the difference with a larger deposit or renegotiate with the vendor.
Call one of our team or book an appointment at a time that works for you. We'll walk through your financial position, the property you're considering, and the lender options that match your situation and your long-term strategy.
Frequently Asked Questions
How do lenders calculate rental income when assessing an investment loan?
Lenders typically apply a vacancy factor and only count around 80% of expected rental income when assessing your borrowing capacity. This discount accounts for periods when the property may be vacant or undergoing maintenance, and it reduces the amount you can borrow compared to using your salary alone.
Do the 2026-27 Budget changes affect investment properties bought before May 2026?
No. Properties purchased before 13 May 2026 are grandfathered under the existing negative gearing and capital gains tax rules. The changes to negative gearing and CGT only apply to established residential properties bought after that date, with new builds receiving preferential treatment.
Can I use equity from my home as a deposit for an investment property?
Yes. Many investors use equity from their existing home to fund the deposit on an investment property, which removes the need for a cash deposit. However, lenders will assess your ability to service both loans, and you'll need a valuation on the property you're borrowing against.
What's the difference between interest only and principal and interest for an investment loan?
Interest only loans reduce your monthly repayment and improve cash flow, but you don't reduce the loan balance. Principal and interest loans build equity over time, giving you more flexibility to refinance or access that equity later, but the repayments are higher.
Why do some lenders decline loans on certain apartment types?
Lenders assess risk based on property type, location, and building characteristics. Studios, serviced apartments, or buildings with high non-owner-occupier rates may be seen as harder to sell or rent, so some lenders cap the loan to value ratio or decline them altogether.