What are Investment Loan Applications and How They Work

What Makes an Investment Loan Application Different from a Home Loan

An investment loan application is assessed using rental income from the property, not just your current salary. Lenders typically count between 70 and 80 per cent of the expected rental income when calculating how much you can borrow, which reflects the possibility of vacancies or periods where the property sits empty. That difference reshapes the entire application.

Consider a buyer earning $75,000 per year who wants to purchase a rental property. The property they're looking at could realistically rent for $450 per week. The lender assesses serviceability using around $320 of that weekly rent (at an 80 per cent rental income factor), not the full amount. At current rates and with the 3 percentage point serviceability buffer that applies to all new loans, that buyer's borrowing capacity may sit around $320,000 to $350,000, assuming minimal other debts. The deposit requirement then becomes the next hurdle.

In our experience, first-time investors often assume the deposit rules mirror those for owner-occupiers. They don't. Most lenders require at least a 10 per cent genuine savings contribution for investment loans, and Lenders Mortgage Insurance becomes more expensive as the loan amount increases relative to the property value.

Why Lenders Treat Investment Loan Applications More Conservatively

Lenders apply stricter criteria because investment properties carry additional risk. You're borrowing to purchase an asset that depends on tenant occupancy and rental market conditions, not your own housing need. Under the prudential framework, investment loans attract higher risk weighting, which flows through to how lenders price and assess these applications.

From the 2027-28 income year, established investment properties purchased after 12 May 2026 are subject to new negative gearing rules. Losses on those properties can only be offset against other residential property income, not your salary. New builds remain exempt and continue to allow full negative gearing. That legislative change has redirected some buyer attention toward new apartments and house-and-land packages, which still offer the tax treatment many investors rely on to manage cash flow in the early years.

If you're renting in Melbourne and considering your first property purchase as an investment rather than a home to live in, the deposit and income treatment becomes the starting point. Lenders assess your application based on a discounted view of the rental income, your existing debts, and your savings history. That changes the borrowing capacity calculation in ways that catch a lot of first-time buyers off guard.

How Rental Income is Assessed in Your Application

Lenders calculate rental income using a shading factor, typically 80 per cent of the market rent. If a property is advertised at $500 per week, the lender includes $400 per week in the serviceability assessment. Some lenders apply a 70 per cent factor, particularly on properties in regional areas or where vacancy rates are higher. The rental figure used is either the amount stated on a signed lease or an estimate based on a rental appraisal provided by a licensed property manager.

Your other income, usually salary or wages, is still counted in full. The combination of your employment income and the shaded rental income is tested against all your ongoing commitments, including the proposed loan repayment calculated at the product rate plus the 3 percentage point buffer. That buffer has been in place since October 2021 and applies to all new borrowers, whether investing or owner-occupying.

If you're looking at an interest only loan, the application is assessed on interest-only repayments for the interest-only period, usually up to five years, then on a principal-and-interest basis for the remaining term. Some lenders assess the entire loan on a principal-and-interest basis regardless of the repayment structure you choose. The approach varies by institution.

The Deposit and Genuine Savings Requirement for Investment Loans

Most lenders require a 10 per cent deposit from genuine savings for investment property purchases. Genuine savings means funds held in your own name for at least three months in a standard savings account, term deposit, or offset account. Equity from an existing property you own can sometimes replace cash savings, provided you have enough usable equity and meet the lender's servicing requirements.

Lenders Mortgage Insurance applies when your deposit is less than 20 per cent of the property value. LMI premiums on investment loans are higher than on owner-occupied loans at the same loan-to-value ratio. A borrower with a 10 per cent deposit may pay LMI premiums ranging from 2 to 4 per cent of the loan amount, depending on the lender and the property type. That premium is typically added to the loan amount rather than paid upfront, though paying it separately can reduce your ongoing interest cost.

Some lenders offer no-LMI products for specific professions or under certain portfolio arrangements. Those options are limited and usually come with rate loadings or restrictions on property type. For most first-time investors, LMI remains part of the cost structure when borrowing above 80 per cent of the property value.

Investment Loan Features That Affect Borrowing and Cash Flow

Most investors choose a variable rate loan or a partial fixed rate split. A variable rate allows you to make extra repayments and access offset accounts, both of which are helpful if you're managing rental income and holding funds for property expenses like repairs, agent fees, or periods without a tenant. Offset accounts don't reduce the loan balance for the purpose of calculating the loan-to-value ratio under prudential standards, but they do reduce the interest you pay.

Fixed rate products lock in a rate for a set period, usually one to five years, and typically restrict extra repayments and don't allow offset accounts. If you need to exit a fixed rate loan early, break costs apply. Those costs can be significant and are calculated based on the difference between your fixed rate and the lender's current wholesale funding cost for the remaining fixed period.

Interest-only loans are common for investment properties. The borrower pays only the interest portion each month, which lowers the repayment and can make cash flow more manageable, particularly if the rental income doesn't cover a principal-and-interest repayment. The downside is that the loan balance doesn't reduce, and at the end of the interest-only period the loan reverts to principal-and-interest with a higher repayment over the remaining term.

How Legislative Changes Affect Your Investment Loan Application Now

If you're applying for a loan to purchase an established property as an investment, the loan itself is processed the same way it was 12 months ago. What has changed is the tax treatment once you own the property, and that affects whether the investment makes financial sense for your situation.

Established properties purchased after 12 May 2026 and settled after 30 June 2027 are subject to restricted negative gearing. Losses can only be offset against income from other residential properties, including capital gains when you eventually sell. Losses can be carried forward, but they don't reduce your taxable salary in the year they occur. New builds purchased after that date are exempt and continue to allow full loss deductions against all income.

From 1 July 2027, capital gains tax treatment also changes. The 50 per cent discount is replaced by cost base indexation and a 30 per cent minimum tax rate on real gains. For properties owned before 1 July 2027, gains are split into a pre-July 2027 portion taxed under the old rules and a post-July 2027 portion taxed under the new rules. New builds retain access to both the old 50 per cent discount and the new indexed treatment, with the choice available at the time of sale.

These changes don't alter how lenders assess your application, but they do change the investment math. Many first-time buyers now weigh the option of purchasing a new apartment or townhouse to retain full negative gearing, versus an established property in a more tightly held location with limited tax relief.

What Debt-to-Income Limits Mean for Your Application

From 1 February 2026, lenders have been restricted in how much they can lend to borrowers with high debt relative to income. No more than 20 per cent of a lender's new investment loans each quarter can go to borrowers with total debt of six times their gross annual income or more. The limit applies separately to investment lending and owner-occupier lending.

If your total borrowings, including the proposed investment loan, would put you at a debt-to-income ratio of six or above, your application falls into that 20 per cent cap. That doesn't mean you're automatically declined, but it does mean the lender needs to manage how many high-DTI approvals they issue across the quarter. Some lenders tighten policy settings earlier in the quarter, others pace approvals more evenly. Timing and lender choice both matter.

For a borrower earning $75,000 per year, a DTI of six would represent total borrowings of $450,000. If you're considering an investment loan refinance or purchasing additional property down the track, the DTI limit applies based on total debt at the time of each new application.

What You Need to Prepare for an Investment Loan Application

Your application requires proof of income, savings history, identification, and details of the property you intend to purchase. Lenders ask for payslips covering the most recent three months, two years of tax returns if you're self-employed, and bank statements showing at least three months of transactions on all accounts. If you're relying on rental income from the property being purchased, you'll need a signed lease or a rental appraisal from a licensed agent.

For the property, the lender orders a valuation to confirm the purchase price aligns with market value. If the valuation comes in below the contract price, the lender uses the lower figure to calculate the loan-to-value ratio, which can affect whether you meet the deposit requirement or need to renegotiate the purchase price.

If you're buying in a new development or purchasing off the plan, some lenders apply additional criteria. Buildings with more than 50 per cent non-owner-occupied apartments or developments where a single investor holds multiple units may be subject to higher interest rates or lower maximum LVRs. That's a lender-by-lender policy, not a regulatory requirement, but it affects which lenders are willing to provide finance and on what terms.

When to Start the Investment Loan Application Process

Start the application before you sign a contract, particularly if you're a first-time investor or your income structure is less conventional. Many buyers assume pre-approval gives them certainty, but investment loan pre-approvals are often subject to property assessment, rental appraisal, and final valuation. The property type, location, and condition all feed into the lender's final decision.

If you're considering buying your first investment property and you're currently renting, speak to a broker early in the process. The interplay between serviceability, deposit requirements, LMI costs, and the new negative gearing rules creates a set of constraints that differ significantly from a standard home loan. Getting the structure right at the start determines whether the investment is sustainable once you settle and begin managing tenants, rates, insurance, and repairs.

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

Frequently Asked Questions