How to Choose a Variable Rate Investment Loan

A variable rate investment loan gives you access to rate drops, offset accounts and the option to make extra repayments without penalties.

Most property investors in Malvern choose a variable rate structure for at least part of their portfolio, particularly when they want flexibility to respond to market conditions or access equity for their next purchase. The decision about whether to use variable or fixed rates often changes as your portfolio grows and your priorities shift.

Variable Rates for Your First Investment Property

Your first investment property loan is usually taken out when you want maximum flexibility and the ability to redraw funds or offset rental income against the outstanding balance. A variable rate loan allows you to make extra repayments when rental income exceeds your budgeted amount, and you can access offset accounts that reduce the daily interest calculation without affecting your ability to claim deductions on the full loan amount.

Consider a buyer who purchases their first investment property in Malvern East while still living in their own home. They set up the loan on an interest-only basis with a 100 per cent variable rate, linking an offset account where rental income is deposited. Over 18 months, the offset balance builds to around $22,000, reducing their interest cost without triggering any tax complications. When they decide to purchase a second property, they can access this offset balance for deposit costs and leave the loan structure unchanged. This kind of flexibility would not be available under a fixed rate loan.

Variable rates respond immediately to changes in the cash rate. When the Reserve Bank lowers rates, your repayment drops within the same month. When rates rise, your repayment increases. Most lenders apply rate changes within one to three business days of a Reserve Bank announcement.

Interest-Only or Principal and Interest for Investment Loans

Interest-only repayments are lower than principal and interest repayments, which improves short-term cash flow and allows you to direct surplus funds toward other investments or debt reduction on your own home. Most lenders offer interest-only periods of up to five years on investment loans, with the option to renew for a further period subject to serviceability and loan-to-value ratio requirements.

Once your interest-only period ends, the loan reverts to principal and interest unless you apply to renew. The switch increases your repayment, sometimes significantly, depending on how much of the loan term remains. In our experience, investors who do not plan for this reversion can find themselves stretched when repayments jump by 30 to 40 per cent.

If your goal is to build equity in the property while still claiming the maximum tax deduction, you can structure the loan as principal and interest from the outset. This approach works when rental income is strong and you do not need the cash flow benefit of interest-only repayments. Malvern's relatively low vacancy rate and consistent tenant demand mean most investors in the area can support principal and interest structures without relying on top-ups from their own income.

Using Equity to Grow Your Portfolio

Once your first investment property increases in value or you pay down the loan balance, you can access equity to fund a deposit on your next purchase. Lenders will assess your borrowing capacity based on rental income from existing properties, your personal income and your total debt position. Under current lending rules, lenders must assess your ability to service all loans at a rate at least 3.0 percentage points above the actual loan rate, and from February this year, no more than 20 per cent of new investor loans at any lender can be made to borrowers with a debt-to-income ratio of six times or more.

Variable rate loans allow you to access equity through a top-up or a separate line of credit without breaking your existing loan. You can then use that equity as a deposit for the next property, keeping your original loan structure intact. This approach is common among Malvern investors who want to retain their existing offset arrangements and avoid the cost and complexity of refinancing the entire portfolio.

If you choose to refinance instead, you may be able to secure a lower rate or access different loan features, such as a higher offset limit or split loan options. Refinancing can also be an opportunity to consolidate multiple loans, switch lenders or move from interest-only to principal and interest as your portfolio matures.

Variable Rates When You Are Close to Retirement

Investors approaching retirement often shift their focus from portfolio growth to income stability and debt reduction. A variable rate loan still offers flexibility, but the priority changes from accessing equity to paying down the loan balance or switching to principal and interest to reduce debt before you stop working.

If you are still earning an income and your investment properties are generating positive cash flow after tax, you may choose to make extra repayments or maintain an offset account to reduce interest costs. Once you retire, your borrowing capacity drops because lenders no longer assess your employment income, so refinancing or restructuring becomes more difficult unless you have substantial rental income or other passive income sources.

Some investors close to retirement prefer to fix part of their loan to lock in repayment certainty, particularly if they expect interest rates to rise or if they want to match their repayment to a predictable retirement income. A split loan structure, where part of the balance is variable and part is fixed, can provide both certainty and flexibility. You can read more about rate options on our home loans page, which covers split structures in detail.

How the Negative Gearing Rules Affect New Purchases

From the 2027-28 income year, losses on established residential investment properties purchased after 12 May 2026 can only be offset against income from other residential properties, not against salary or wage income. Properties you already own, or properties you had under contract on 12 May 2026, are not affected. New build properties remain eligible for full negative gearing regardless of when they are purchased.

This change affects how you structure your borrowing, particularly if you are considering a new purchase. If the property will be negatively geared and you bought it after 12 May 2026, you will need other residential property income or capital gains to absorb the loss. If you do not have other residential income, the loss can be carried forward to future years, but it will not reduce your taxable income from employment or business activities.

Malvern's stock is predominantly established homes and apartments, so most purchases in the area will be subject to the new rules unless the property qualifies as an eligible new build. If you are planning to expand your portfolio, it may be worth discussing your timing and structure with a broker who understands how the new rules interact with borrowing capacity and cash flow.

When to Review Your Variable Rate Loan

Rate discounts, offset limits and loan features change regularly, and the loan that suited you three years ago may no longer be the most appropriate option. Lenders compete for new business and often offer deeper discounts or additional features to attract refinance customers. If you have not reviewed your loan in the past two years, it is worth checking whether your current rate is still in line with what is available in the market.

You should also review your loan structure if your circumstances have changed. Moving from interest-only to principal and interest, consolidating multiple loans, or releasing equity for another purchase are all reasons to reassess your current arrangement. A loan health check can identify whether you are paying more than you need to or whether your loan features still match your investment strategy.

Call one of our team or book an appointment at a time that works for you. We work with property investors across Malvern and can help you compare your options, structure your borrowing and plan your next purchase.

Frequently Asked Questions