Variable rate investment loans give you access to features that fixed rates cannot match: offset accounts, unlimited extra repayments, and the ability to redraw or refinance without penalty.
The challenge is not whether variable rates suit investment lending. It is knowing which features you will actually use and which ones you are paying for without benefit. Too many investors choose a loan based on a features list rather than how they intend to manage the property, and that gap shows up in the first twelve months when the offset sits empty or the redraw facility goes untouched while a higher rate ticks over.
Paying for an Offset Account You Will Not Use
An offset account reduces the interest charged on your loan by offsetting the balance in a linked transaction account against your loan balance. If you have $20,000 in the offset and owe $400,000 on the loan, you pay interest on $380,000.
Consider an investor who borrows to buy a unit and selects a variable rate loan with a full offset feature because it sounds useful. The loan rate is 0.15 per cent higher than the same lender's basic variable product without offset. The investor intends to salary sacrifice into super, has no spare cash flow after covering the shortfall on rent, and never builds a balance in the offset account. Over five years, that 0.15 per cent rate premium costs around $3,000 in additional interest for a feature that delivered no benefit.
If you do not expect to hold cash in an offset for more than a few months each year, a lower-rate product without offset will cost you less. The exception is if you plan to use debt recycling strategies later, where an offset becomes part of the structure.
Choosing Interest-Only Without a Cash Flow or Tax Reason
Interest-only repayments are not a feature in the same sense as offset or redraw. They are a repayment structure that changes your monthly obligation and your tax position.
An interest-only period reduces your repayment to just the interest component, leaving the principal unchanged. The benefit is lower monthly cost and, where the property is negatively geared, a larger deductible interest expense relative to your repayment. The downside is that you do not reduce the debt, and when the interest-only period ends, the principal and interest repayment over the remaining term is higher than it would have been on a 30-year principal and interest loan from the start.
If you are using interest-only loans to manage cash flow during a period when you expect income to rise, or to maximise deductions in high-income years, the structure makes sense. If you choose interest-only because the repayment looks lower without a clear plan for what happens when the period ends, you are deferring a problem. Lenders typically offer interest-only periods of one to five years on investment lending. After that, the loan reverts to principal and interest, and serviceability is reassessed at that point.
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Ignoring the Link Between LVR and Rate Discount
Variable rate investment loans are priced on a risk margin above the lender's cost of funds. The margin is affected by your loan to value ratio, and the difference between a 70 per cent LVR and an 85 per cent LVR can be 0.20 to 0.40 per cent on the same product with the same features.
If you are comparing loan options at an 80 per cent LVR and you have the option to increase your deposit to bring the LVR below 80 per cent, the rate reduction may be worth more than the opportunity cost of the extra deposit, particularly if the alternative is holding that cash in an account earning less than the loan rate. Some lenders also tier their LVR pricing at 70 per cent, 75 per cent and 80 per cent, so even a modest change in deposit can shift the rate.
Lenders Mortgage Insurance does not apply to most investment loans below 80 per cent LVR, but the rate discount for lower LVR still applies. If you are refinancing an investment loan and your equity position has improved since you first borrowed, check whether your current LVR qualifies for a lower rate tier with your existing lender or a new one.
Selecting a Loan Without Portability When You Plan to Grow a Portfolio
Portability allows you to transfer your existing loan to a new security without discharging and reapplying. Not all lenders offer it, and not all variable products include it even when the lender does.
In a scenario where you own one investment property, build equity, and want to purchase a second property while retaining the first, portability lets you move the existing loan to the new property or split it across both without triggering a full refinance. Without portability, you will need to apply for a new loan, and your borrowing capacity may have changed due to serviceability rules, rate rises, or changes to your income.
Portability is particularly relevant for teachers expanding a property portfolio while managing cash flow across term breaks or parental leave. If you intend to hold multiple properties over time, confirm whether the loan contract allows portability and under what conditions. Some lenders will allow it only if you stay within the same loan product and LVR band.
Failing to Check Redraw Conditions Before Making Extra Repayments
Redraw allows you to withdraw extra repayments you have made above the minimum required. It sounds similar to offset, but the mechanics and the risks are different.
With offset, your cash sits in a separate account. You control it, and the lender cannot restrict access. With redraw, your extra repayments reduce the loan balance, and the lender holds the surplus. You can request it back, but the lender sets the terms: minimum redraw amounts, processing times, and in some cases the lender can restrict or remove access if your financial position changes or if the property value falls.
If you are making extra repayments on a variable rate investment loan because you want the flexibility to access that cash later for another deposit, renovation, or to cover a vacancy period, confirm the redraw terms in writing before you make the first extra payment. Some lenders allow online redraw with no minimum. Others require a phone call, a signed authority, and five business days. If you are relying on that cash being available at short notice, an offset account is the safer option even if the rate is slightly higher.
Variable rate investment loans give you control, but only if the features you are paying for match the way you intend to manage the property and your cash flow. If you are selecting a loan for the first time or considering whether to refinance an existing investment loan, focus on the two or three features that align with your actual circumstances, not the full list. Call one of our team or book an appointment at a time that works for you.
Frequently Asked Questions
Should I choose a variable rate investment loan with an offset account?
Only if you expect to hold a meaningful cash balance in the offset for most of the year. If you will not use the offset, a lower-rate product without it will save you money.
What is the difference between redraw and offset on an investment loan?
Offset holds your cash in a separate account you control. Redraw reduces your loan balance, and the lender controls access to the surplus, including minimum amounts and processing times.
Does my loan to value ratio affect my variable interest rate?
Yes. Lenders tier their rates by LVR, and a lower LVR can reduce your rate by 0.20 to 0.40 per cent on the same product. Reducing your LVR from 85 per cent to below 80 per cent typically delivers a rate discount.
When should I use interest-only repayments on an investment loan?
Interest-only makes sense when you need to manage cash flow or maximise tax deductions in high-income years. If you have no clear reason, principal and interest repayments will reduce your debt and your total interest cost over time.
What is portability and do I need it on my investment loan?
Portability lets you transfer your loan to a new security without reapplying. If you plan to grow a property portfolio, portability avoids the need for a full refinance each time you buy.