Common Mistakes When Securing Investment Loans

Understanding the financing challenges property investors face in Templestowe and how to structure loans that support long-term portfolio growth.

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Securing finance for an investment property involves a different approval framework than an owner-occupied home loan.

Lenders assess investment applications with stricter servicing criteria, reduced income treatment for rental returns, and higher deposit requirements. For property investors in Templestowe, where median property values sit in the mid-to-high range and rental yields typically fall between 3% and 4%, understanding these constraints before you apply determines whether your investment loan gets approved or declined.

Underestimating Servicing Buffers and Rental Income Treatment

Lenders assess your ability to service an investment loan using a higher interest rate than what you'll actually pay, usually between 7% and 9%. On top of that, they only recognise 75% to 80% of the rental income you'll receive, and some lenders apply a vacancy rate assumption of 4 to 6 weeks per year.

Consider an investor purchasing a two-bedroom unit near Westerfolds Park. The property generates $550 per week in rent, but the lender assesses it at $440 per week after applying an 80% shading and deducting body corporate fees and an assumed vacancy period. Meanwhile, the loan repayments are calculated at a buffer rate of 8.5%, not the actual variable interest rate of around 6%. That gap between actual income and assessed income creates a servicing shortfall that catches many applicants off guard, particularly those with existing debts or limited surplus income.

If your borrowing capacity is already stretched across multiple properties or you're carrying personal debt, that reduced rental income treatment can prevent you from accessing the loan amount you need. Some lenders offer more favourable shading for high-quality properties or experienced investors, so product selection matters as much as deposit size.

Structuring Loans Without Considering Future Purchases

How you structure your first investment loan affects your ability to borrow again.

If you take out a principal and interest loan with all available equity tied to that property, you'll need to formally refinance or apply for a top-up to access funds for your next purchase. That process takes time, costs money, and requires another full credit assessment. In contrast, structuring the loan with an offset account, a split between fixed and variable rates, and a separate line of credit against your owner-occupied property gives you immediate access to equity without needing lender approval each time.

In our experience working with investors across Templestowe and surrounding suburbs, those who plan for portfolio growth from the outset save thousands in refinancing costs and avoid delays when the right property becomes available. Setting up interest only repayments on the investment loan while maintaining principal and interest on your home loan can also improve cash flow and preserve capital for future deposits, though this approach requires clear tax advice and a disciplined savings plan.

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Book a chat with a Finance & Mortgage Broker at Mach Mortgages today.

Misjudging the Impact of Budget Changes on Deductions

If you purchased an established residential investment property after 12 May 2026, the way you claim losses will change from 1 July 2027. Losses from that property can no longer be offset against your wage or salary income. Instead, those losses can only be used to reduce rental income or capital gains from other residential properties, or carried forward to future years.

For Templestowe investors holding properties with low rental yields and high interest costs, this removes a significant cash flow benefit. An investor earning $120,000 per year who previously offset $15,000 in annual losses against their taxable income will no longer receive that tax refund. That $15,000 loss can still be claimed, but only when there's positive rental income or a capital gain to offset it against, which may not occur for several years.

The changes don't apply to properties purchased before Budget night, so existing investors are unaffected on their current holdings. New builds purchased after that date retain the option to use the 50% capital gains tax discount or the new indexed method, whichever produces a lower tax outcome. If you're considering a purchase in one of the newer developments along Macedon Road or near the eastern edge of Templestowe, understanding how these rules apply to your specific property type is now part of the financing conversation, not just the tax planning discussion.

Overlooking Lender Differences in LVR and LMI

Not all lenders assess investment properties the same way. Some cap investor loans at 90% loan to value ratio, others at 80%, and a few will only lend to 70% for units or properties in certain postcodes.

Lenders Mortgage Insurance on investment loans is also more expensive than on owner-occupied properties. On a loan with a 10% deposit, LMI can add $15,000 to $30,000 to your upfront costs depending on the loan amount and lender. Some lenders allow you to capitalise that cost into the loan, while others require it paid in cash at settlement. If you're refinancing an existing investment property and your equity position has improved, removing LMI by dropping below 80% LVR can save you thousands in interest over the life of the loan.

Templestowe's mix of established homes and newer townhouse developments means property type plays a role in how lenders assess risk. A 1970s brick home on a large block near Templestowe Village is typically viewed more favourably than a two-bedroom apartment in a high-density complex, even if both properties generate similar rental income. That perception difference flows through to interest rate discounts, LVR caps, and whether the lender will consider the property as security at all.

Failing to Account for Holding Costs and Claimable Expenses

The time between settlement and finding a tenant involves costs that aren't always factored into the initial budget. Council rates, water charges, insurance, and body corporate fees continue regardless of occupancy. Stamp duty is payable upfront and varies by state, but in Victoria it's calculated on the full purchase price and can represent 5% or more of the property value.

Once the property is tenanted, you can claim a range of deductions including loan interest, property management fees, maintenance, depreciation, and insurance. Investors often underestimate how much of the holding cost can be recovered through tax deductions, particularly in the first few years when depreciation on fixtures and fittings is highest. A quantity surveyor's depreciation schedule costs around $600 to $800 but can unlock $5,000 to $10,000 per year in additional deductions on a newer property.

For those using an interest only structure, all loan interest is typically deductible, which makes the effective cost of borrowing lower than the stated interest rate once you account for your marginal tax rate. That tax benefit is one reason why interest only investment loans remain popular despite slightly higher rates than principal and interest options. Pairing that with an offset account on your owner-occupied home loan allows you to direct surplus cash flow toward non-deductible debt while keeping the investment loan balance high and maximising claimable interest.

Choosing Rate Over Features

An investment loan with a slightly higher interest rate but an offset account, portability, and no ongoing fees can cost less over time than a lower-rate product with restrictive terms.

Rate discounts are often conditional on maintaining a package account, holding a certain deposit balance, or bundling other products like credit cards or insurance. If those conditions lapse, the discount disappears and you're left on a higher revert rate without the flexibility to refinance quickly. Some lenders also limit extra repayments on fixed rate investment loans or charge break costs if you pay down the loan early, which restricts your ability to reduce debt when cash flow improves.

When comparing investment loan options, look at the comparison rate, but also consider how the loan fits your broader property investment strategy. If you plan to acquire multiple properties, having the ability to split loans, redraw funds, or port the loan to a new security without reapplying becomes more valuable than a 0.10% lower rate.

If you're weighing up different loan structures or trying to understand how recent policy changes affect your specific situation, call one of our team or book an appointment at a time that works for you.

Frequently Asked Questions

How do lenders assess rental income for investment loan applications?

Lenders typically recognise only 75% to 80% of the rental income your property generates and apply a vacancy rate assumption of 4 to 6 weeks per year. They also deduct body corporate fees and other property expenses before calculating your borrowing capacity.

What changed for property investors in the 2026 Federal Budget?

From 1 July 2027, losses from established residential investment properties purchased after 12 May 2026 can only be offset against rental income or capital gains from residential property, not against wage or salary income. Existing properties and new builds have different treatment under the new rules.

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

Interest only repayments improve cash flow and keep the loan balance high, which maximises your tax-deductible interest. However, they typically carry a slightly higher rate and require a clear strategy for managing equity and future loan transitions.

How does Lenders Mortgage Insurance work on investment properties?

LMI on investment loans is more expensive than on owner-occupied properties and applies when you borrow above 80% of the property value. The cost varies by lender and loan amount, and some lenders allow you to capitalise it into the loan rather than paying upfront.

Why does loan structure matter for future property purchases?

How you structure your first investment loan affects your ability to access equity for future deposits without needing to refinance. Using offset accounts, loan splits, and separate lines of credit provides flexibility and reduces costs when acquiring additional properties.


Ready to get started?

Book a chat with a Finance & Mortgage Broker at Mach Mortgages today.