The Easiest Way to Use Variable Rate Investment Loans

A variable rate investment loan adjusts with market movements and allows early repayments, redraw access and refinancing without break fees.

Chadstone sits within the City of Monash, where established townhouses and units near Chadstone Shopping Centre attract consistent rental demand from retail workers, students attending Monash Caulfield and young professionals. Vacancy periods are typically short, but lease gaps still occur. When rental income drops for a month or two, having access to a redraw facility or the ability to switch to interest-only repayments without penalty becomes useful. A variable rate investment loan responds to those shifts without locking you into fixed terms that penalise changes.

The structure you choose affects your capacity to adapt when circumstances change, refinance when better rates appear, or access equity as your portfolio grows.

Variable Rate Investment Loans and Repayment Flexibility

Variable rate investment loans allow you to make extra repayments, redraw funds and adjust repayment structures without incurring break costs. Most lenders permit switching between principal and interest and interest-only terms during the loan, subject to serviceability checks. Redraw facilities let you access surplus funds you have paid ahead, which can cover vacancy periods, maintenance costs or deposit contributions for additional properties. Offset accounts are less common on investment loans than on owner-occupied lending, but some lenders offer them. Where available, an offset account reduces interest charges on the daily loan balance without requiring you to pay down the principal, preserving your ability to claim interest deductions on the full loan amount.

Consider a property investor in Chadstone who owns a two-bedroom unit near Batesford Road. The tenant provides three months' notice. Rather than drawing on personal savings during the vacancy, the investor redraws funds from the investment loan to cover two months of holding costs while the property is re-leased. Once the new tenant is in place, rental income resumes and the investor continues standard repayments. That flexibility is only available because the loan was variable, not fixed.

Interest Rate Movements and Investment Loan Costs

Variable interest rates on investment loans rise and fall in response to official cash rate changes and lender funding costs. When rates increase, your repayments increase. When rates fall, repayments drop. The variability applies to both principal and interest and interest-only loan structures. Lenders apply different margins to investment loans compared to owner-occupied loans due to the higher risk weighting under APS 112. That margin typically ranges between 0.30 and 0.60 percentage points, depending on the lender, your LVR and whether the loan is interest-only or principal and interest.

Rate movements affect your borrowing capacity when applying for additional investment loans. Under APRA's serviceability buffer, lenders assess your ability to repay at a rate that is at least 3.0 percentage points above the loan product rate. If you hold multiple variable rate investment loans, a rate rise reduces the amount you can borrow for your next purchase. In practice, investors in Chadstone looking to add a second property often refinance their first loan to a lower rate before applying for the second, because improved serviceability on the existing debt increases capacity for new borrowing.

Refinancing Without Break Costs

Variable rate loans can be refinanced at any time without incurring break fees. Break costs apply only to fixed rate loans and are calculated based on the difference between the fixed rate on your loan and the wholesale rate the lender can achieve for the remaining fixed term. On a variable rate loan, you pay discharge fees, application fees for the new loan and valuation costs, but no break cost. That makes refinancing viable whenever a lower rate or improved loan features become available.

In our experience, Chadstone investors who purchased in the past two to three years often refinanced within 18 months of settlement because their equity position improved or a new lender offered a lower rate. Refinancing on a variable rate loan can be completed within four to six weeks, compared to waiting months for a fixed term to expire. The ability to move quickly when market conditions shift is a feature of variable lending that fixed loans do not offer. If you are considering whether your current loan structure still suits your circumstances, a loan health check reviews your rate, features and borrowing capacity without committing you to a refinance.

Interest-Only Terms on Variable Rate Investment Loans

Most lenders offer interest-only terms on variable rate investment loans for an initial period of one to five years, after which the loan reverts to principal and interest unless you reapply for an extension. Interest-only repayments are lower than principal and interest repayments, which improves cash flow and can increase your borrowing capacity when applying for additional properties. The interest paid on an investment loan is deductible against rental income and other assessable income, subject to the negative gearing rules outlined in the Treasury Laws Amendment (Tax Reform No. 1) Act 2026.

For properties held before 12 May 2026, interest and other holding costs remain fully deductible against all income, including salary. For established properties acquired after that date, losses are deductible only against income from residential properties, including capital gains on residential properties, from the 2027-28 income year onwards. New builds acquired after 12 May 2026 retain full deductibility against all income. The structure of your repayments does not change the deductibility of the interest, but it does affect your monthly cash position and your ability to service additional debt.

Loan to Value Ratio and Investment Loan Pricing

Lenders apply different interest rates and require Lenders Mortgage Insurance based on your LVR. For investment loans, LMI is typically required when the LVR exceeds 80 per cent. Some lenders cap investment lending at 90 or 95 per cent LVR, while others do not lend above 80 per cent without exception approval. The LMI premium is calculated on a sliding scale and is higher for investment loans than for owner-occupied loans at the same LVR. The premium can be capitalised into the loan amount or paid upfront.

Under APS 112, lenders calculate LVR based on the total loan amount secured against the property, including any capitalised LMI. Offset account balances do not reduce the loan amount for LVR purposes. If you hold a second mortgage over the same property with another lender, the exposures are aggregated when calculating the LVR for capital adequacy purposes. In practice, most borrowers in Chadstone who purchase investment properties with a deposit between 10 and 20 per cent pay LMI, and that cost is factored into the upfront investment before the property generates rental income.

Debt-to-Income Limits for Investment Borrowing

From 1 February 2026, APRA introduced a DTI lending limit that restricts lenders from issuing more than 20 per cent of new investment loans to borrowers with a total DTI ratio of six times or greater. The limit applies separately to investment and owner-occupier lending and is measured quarterly at each lender. The calculation includes all debt secured against property, including owner-occupied and investment mortgages, but excludes bridging loans for owner-occupiers and loans for new dwelling construction.

For Chadstone investors, the DTI limit becomes relevant when your total borrowing across all properties reaches six times your gross annual income. If your income is insufficient to support additional borrowing under the DTI cap, lenders may decline the application even if serviceability at the buffered rate is satisfied. Some borrowers structure new purchases through a trust or company to separate the debt from their personal DTI profile, but those structures carry different tax and lending implications and should be reviewed with a licensed accountant before proceeding. Non-ADI lenders are not currently subject to the DTI limit, which can provide an alternative pathway for borrowers near the threshold.

Using Equity to Fund Additional Investment Properties

As property values increase, the equity in your investment property can be accessed to fund deposits for additional purchases. Lenders typically allow you to borrow up to 80 per cent of the property value without requiring LMI, which means you can access the equity above your current loan balance up to that threshold. The equity is accessed by refinancing the existing loan or establishing a separate loan secured against the same property. The additional borrowing is deductible if the funds are used to acquire or hold an income-producing asset.

Consider an investor who purchased a unit in Chadstone several years ago and has seen the property value increase while the loan balance has decreased through principal repayments. The investor refinances the original loan to release equity, then uses those funds as a deposit for a second investment property. Because the additional borrowing is used to acquire a rental property, the interest on the increased loan amount is deductible. Variable rate loans allow this refinancing to occur at any time without waiting for a fixed term to expire, which is particularly useful when a purchase opportunity appears and speed matters.

Call one of our team or book an appointment at a time that works for you at Law Home Loans. We compare investment loan options from lenders across Australia and structure your borrowing to suit your portfolio strategy and cash flow requirements.

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