Why Should You Manage Risk on Investment Loans?

Investment property brings genuine opportunity for long-term wealth, but it also introduces risk that needs active management.

Rental income can drop unexpectedly, interest rates move, and policy changes can shift the numbers on established properties. A solid risk management approach means structuring your loan and property choices so that short-term disruptions don't force you to sell or compromise your financial position elsewhere.

How Do Vacancy Periods Affect Your Loan Repayments?

A vacancy means you cover the full loan repayment, body corporate fees, rates, and insurance without rental income offsetting those costs. Most investors in Perth's established suburbs experience vacancy at some point, whether due to tenant turnover or seasonal demand.

Consider a buyer who owns a two-bedroom unit in Fremantle and relies on rental income to cover a portion of their monthly repayment. If the property sits vacant for eight weeks during winter, they need to cover around $3,200 in loan repayments plus another $800 in outgoings from their own income. Without a buffer in place, that period puts immediate pressure on household cash flow. In this scenario, the investor had set up an offset account during settlement and kept three months of repayments in reserve. That buffer covered the vacancy period without affecting day-to-day spending or requiring credit card debt.

Vacancy is more common in certain suburbs and property types. Units near universities or FIFO worker hubs in the northern suburbs tend to see higher turnover than family homes in school catchment areas like Mount Hawthorn or Applecross. Your loan structure should reflect that likelihood.

Should You Fix or Stay Variable on an Investment Loan?

Neither option eliminates risk entirely, but each manages a different type of exposure. A variable rate gives you flexibility to make extra repayments, access offset accounts, and refinance without break costs. A fixed rate locks in your repayment amount for a set period, which can be useful if you're operating with tight cash flow and can't absorb a rate rise.

In our experience, splitting the loan between fixed and variable gives most WA investors a middle path. You get certainty on part of the repayment while keeping flexibility on the rest. That structure also lets you direct surplus cash into an offset account linked to the variable portion, which reduces the interest you pay without locking funds away.

If you're holding multiple properties, fixing the entire portfolio at once can create complications down the track. Staggering fixed terms across properties means you're not exposed to a single rate environment when those terms expire.

What Role Does LVR Play in Managing Long-Term Risk?

Your loan to value ratio determines whether you pay Lenders Mortgage Insurance and how much equity you retain during a market correction. Borrowing at 90% LVR with LMI might get you into the market sooner, but it leaves less room to absorb a price drop or access equity later without refinancing stress.

Most lenders tighten their assessment when your total borrowing across all properties exceeds 80% LVR. If you plan to grow a portfolio, keeping each property below that threshold gives you more flexibility when applying for your next loan. It also means you can access equity for deposits or renovations without automatically triggering LMI again.

In WA, where some regional areas have seen sharper price movements than metro Perth, a lower LVR also reduces the chance of finding yourself in a position where the property value has dropped below what you owe. That situation doesn't matter if you plan to hold long-term, but it does limit your options if circumstances change and you need to sell or refinance.

How Do the 2026 Budget Changes Affect Risk on Established Properties?

From 1 July 2027, rental losses on established residential properties bought after 12 May 2026 can only be offset against other residential property income, not your salary or wage. That change increases the cost of holding a negatively geared property during the early years, particularly if you don't own other investments generating rental income or capital gains.

If you purchased before Budget night, your arrangements remain unchanged. If you're buying an established property now, the ability to claim the full loss against your wage has a end date. That means your after-tax cost of holding the property will be higher once the policy takes effect, and your loan structure needs to account for that.

New builds remain eligible for the existing 50% capital gains discount and full negative gearing deductions, which makes them more attractive from a tax perspective if you're buying after the cut-off date. The policy doesn't change anything about loan features or serviceability assessment, but it does change the actual cash flow impact of holding the property.

This is one area where speaking to both a broker and a tax adviser makes sense. The loan amount you can service comfortably under the old rules might feel different under the new ones, particularly if you're planning to build a portfolio over time.

Why Does Interest-Only vs Principal and Interest Matter for Risk?

Interest-only repayments keep your monthly cost lower, which can help with cash flow in the early years or during vacancy. But they also mean your loan balance stays the same, so you're not building equity through repayments. If property values don't rise as expected, you're relying entirely on capital growth to build wealth.

Principal and interest repayments reduce your loan balance over time, which lowers your risk exposure and increases your equity. That equity can be used later to fund deposits on additional properties or to provide a buffer if you need to refinance or sell.

We regularly see investors start with interest-only during the first few years, then switch to principal and interest once rental income increases or their household income improves. That approach keeps early repayments manageable without locking you into interest-only for the full loan term. Some lenders allow you to switch between the two without refinancing, which gives you control as your circumstances change.

What Happens When You Hold Multiple Properties Across Different Lenders?

Spreading your portfolio across lenders can reduce concentration risk if one lender tightens their policy or exits the investment loan market. But it also makes it harder to see your total exposure at a glance, and it can complicate refinancing if you want to consolidate or access equity later.

Each lender applies their own serviceability assessment, and they don't always account for rental income the same way. Some will include 80% of the rent in their calculations, others use 75%. If you're borrowing close to your limit, that difference affects how much you can borrow on your next property.

Keeping your loans with one or two lenders also makes it simpler to negotiate rate discounts or package benefits when your total borrowing grows. A $600,000 portfolio with one lender gives you more leverage than three $200,000 loans split across different institutions.

How Does Rental Income Volatility Affect Loan Serviceability?

Lenders assess your borrowing capacity using a rental income figure that's lower than what you actually receive, typically around 75% to 80% of the stated rent. That buffer accounts for vacancy, maintenance costs, and the possibility that rent might drop.

If you're relying on rental income to service the loan, even a small reduction in rent can push your serviceability below the lender's threshold when you apply for additional borrowing. That's particularly relevant in areas where rental demand fluctuates with employment patterns, such as mining regions in WA's north or areas with high seasonal tourism.

Some investors structure their loans so they can service the full repayment from their own income, treating rental income as a bonus rather than a necessity. That approach limits how much you can borrow initially, but it gives you more control and reduces the chance that a rent drop or vacancy forces a sale.

Should You Use Equity Release to Fund Your Next Deposit?

Using equity from your existing property to fund the next deposit avoids the need to save another large cash sum, but it also increases your total borrowing and reduces the equity buffer on your first property. If values drop, you might find yourself unable to access further equity without paying LMI again.

Equity release works well when your first property has grown in value and you're still comfortably within serviceability limits. It becomes risky when you're stretching your income to service multiple loans or when you're releasing equity at a high LVR without a clear plan for managing repayments if rental income drops.

Before releasing equity, run the numbers on how your repayments and cash flow will look if one property sits vacant for three months or if interest rates rise. If the answer involves relying on credit or selling a property under pressure, it's worth waiting until your position is stronger. You can explore your options and current loan structure through a loan health check.

Managing risk on investment loans doesn't mean avoiding all exposure. It means knowing where your vulnerabilities sit and structuring your borrowing so that normal market movements don't derail your long-term plans. Call one of our team or book an appointment at a time that works for you.

Frequently Asked Questions