Investment Loan Approval: How to Position Your Application

What lenders assess when reviewing your investment property application, and how to structure your borrowing for a faster, more confident approval.

Hero Image for Investment Loan Approval: How to Position Your Application

Getting approval for an investment property loan depends on how you present your financial position and how well the property stacks up under lender assessment.

Most applicants focus on having enough deposit and a clean credit file, but lenders are equally interested in whether the property will generate enough rental income to support the loan, and whether your current debts leave room for another commitment. Understanding what gets weighted most heavily in their decision helps you prepare before you apply, not scramble after a decline.

How Lenders Calculate Your Borrowing Capacity for Investment Properties

Lenders assess your ability to service an investment loan by combining your current income with the expected rental income from the property, then deducting all your existing commitments and living expenses. They don't use the full rent you expect to receive. Most lenders apply a rental income discount of around 20% to account for vacancy periods and maintenance costs, so a property that could bring in $500 per week will be assessed at closer to $400.

Consider a buyer in Chelsea Heights looking at a two-bedroom unit near Wells Road, expecting weekly rent of $480. The lender would assess that as $384 per week in usable income. If the buyer earns $95,000 annually and has a car loan with $380 monthly repayments, the lender calculates whether the combined income covers the new loan repayment, the car loan, and a buffer for living expenses. If the numbers fall short, the loan amount will be reduced or the application declined, even if the deposit is sufficient.

Interest Only or Principal and Interest: What Approval Looks Like for Each

You can structure an investment loan as interest only for an initial period, typically up to five years, or as principal and interest from the start. Interest only repayments are lower, which can help with cash flow if you're holding multiple properties or building a portfolio. However, lenders assess interest only loans more conservatively. They calculate serviceability based on principal and interest repayments, even if you plan to pay interest only initially, to confirm you could handle the higher repayment if rates rise or the interest only period ends.

Principal and interest loans tend to receive slightly more favourable interest rates and can be seen as lower risk by some lenders. If your goal is to build wealth through property and you want to reduce the loan balance over time, principal and interest might suit. If you're focused on portfolio growth and managing cash flow across several properties, interest only can offer more flexibility in the short term.

Ready to get started?

Book a chat with a Finance & Mortgage Broker at Aviser Finance today.

The Role of Equity Release in Securing Investment Loan Approval

If you already own a home in Chelsea Heights or a nearby suburb like Mentone or Cheltenham, you may be able to use the equity in that property as your deposit for the investment loan. Lenders will typically allow you to borrow up to 80% of your home's value without requiring Lenders Mortgage Insurance, meaning if your property is worth $850,000 and you owe $420,000, you have access to around $260,000 in usable equity.

Using equity release to fund your deposit avoids the need to save a separate cash amount, but it also increases the debt against your existing home. Lenders assess the combined loans together, so your total borrowing across both properties needs to fit within your serviceability. In our experience, this is where applications can stall if the buyer hasn't had their capacity reviewed before approaching a lender. The equity exists, but the income doesn't support two loans at once.

How the Property Itself Affects Approval Outcomes

Lenders assess the property you're buying as well as your finances. They want to know the property will hold its value and generate steady rental income. Properties with strong tenant demand and low vacancy rates are viewed more favourably. In Chelsea Heights, units close to Southland Shopping Centre or within walking distance of Chelsea Heights Primary School tend to attract stable tenants, which supports your application.

Properties with high body corporate fees, unusual layouts, or limited appeal to renters can result in a lower valuation or a reduced loan amount. A lender may approve 90% of the purchase price for a standard two-bedroom unit but only 80% for a studio apartment or a property backing onto the Dingley Bypass. The same buyer, same income, different outcome based purely on the asset.

Variable Rate or Fixed Rate: How Your Choice Impacts Approval

Most investment loans are offered on a variable rate, a fixed rate, or a combination of both. Variable rates tend to be slightly lower at the time of writing and give you the flexibility to make extra repayments or access features like offset accounts. Fixed rates lock in your repayment for a set period, which can help with budgeting if you're managing cash flow across multiple properties or want certainty during the early years of ownership.

From an approval perspective, lenders assess variable rate loans using a buffer of around 3% above the actual rate, so even if the current variable rate is lower, they're testing whether you could afford repayments if rates increased. Fixed rate loans are assessed at the actual fixed rate, but without the same flexibility to adjust repayments or exit the loan early without break costs. Your borrowing capacity won't differ significantly between the two, but your strategy and risk tolerance might.

What Happens After You Apply

Once you submit your application, the lender will request supporting documents including recent payslips, tax returns if you're self-employed, a rental appraisal for the property, and bank statements showing your savings and spending patterns. They'll also order a valuation to confirm the property is worth what you're paying for it. If the valuation comes in lower than the purchase price, the loan amount may be reduced, leaving you to cover the shortfall from your own funds.

If your application is strong and the property meets lender criteria, you'll receive formal approval within a few days to a week. If there are gaps in your documentation or concerns about serviceability, the lender may request additional information or decline the application outright. Working with a broker who understands what each lender prioritises and how to present your application in the strongest light reduces the chance of delays or declines.

If you're ready to move forward with buying your first investment property or adding to your portfolio, call one of our team or book an appointment at a time that works for you. We'll review your financial position, assess your options across multiple lenders, and structure your application for the best possible outcome.

Frequently Asked Questions

How much rental income do lenders count when assessing my investment loan?

Lenders typically apply a discount of around 20% to your expected rental income to account for vacancy periods and maintenance costs. If your property is expected to generate $500 per week in rent, the lender will assess it as $400 per week when calculating your borrowing capacity.

Can I use equity from my home as a deposit for an investment property?

Yes, if you own a home with sufficient equity, you can use it as a deposit for an investment loan. Lenders typically allow you to borrow up to 80% of your home's value without Lenders Mortgage Insurance, but your total borrowing across both properties must fit within your serviceability.

Does the type of property I buy affect my loan approval?

Yes, lenders assess the property's ability to hold value and attract tenants. Properties with strong rental demand and low vacancy rates are viewed more favourably, while properties with high body corporate fees or unusual layouts may result in a lower approved loan amount.

Should I choose interest only or principal and interest for an investment loan?

Interest only repayments are lower and can help with cash flow, but lenders assess your serviceability based on principal and interest repayments regardless. Principal and interest loans often receive slightly more favourable rates and reduce your loan balance over time.

How do lenders test if I can afford the loan if interest rates rise?

Lenders assess your ability to service the loan using a buffer of around 3% above the current variable rate. This ensures you could still afford repayments if interest rates increased during the life of the loan.


Ready to get started?

Book a chat with a Finance & Mortgage Broker at Aviser Finance today.