If you own an investment property in Ballina, Byron Bay, Lennox Head, or elsewhere along the Northern NSW coast, there’s a reasonable chance your loan hasn’t been reviewed since you settled. For investors who purchased during the 2020 to 2022 boom, that means a loan that was competitive three years ago may now be sitting above the market rate – and the rules around refinancing an investment property are different enough from a standard home loan that it’s worth understanding them properly.
This article covers what investment property refinancing involves, how the tax rules work, and what Northern NSW investors specifically should be thinking about in 2026.
How Is Refinancing an Investment Property Different?
Refinancing an investment property follows the same basic process as refinancing a home loan – you replace your existing loan with a new one, typically to secure a better rate, access equity, or change your loan structure. But lenders assess investment loans differently, and the tax implications add a layer of complexity that doesn’t exist for owner-occupiers.
Key differences are:
Loan-to-Value Ratio (LVR) is the percentage of the property’s value that you’re borrowing. A 80% LVR on a $700,000 investment property means a loan of $560,000. Most lenders prefer investment loans at 80% LVR or below, because it removes the need for Lenders Mortgage Insurance (LMI) – a premium the lender charges when the loan is considered higher risk.
Principal and Interest (P&I) means your repayments cover both the loan balance and the interest. Interest-only means your repayments cover just the interest – your loan balance stays the same, but your monthly repayments are lower, which improves cash flow. Many property investors use interest-only periods for this reason, though lenders have tightened serviceability requirements around them in recent years.
What Are the Tax Implications of Refinancing an Investment Property?
This is the area that catches the most investors off guard, and it’s worth covering clearly. Refinancing an investment property does not directly trigger Capital Gains Tax (CGT) – the loan is not a taxable event. However, the Australian Taxation Office (ATO) applies a strict “purpose test” to determine what portion of your interest costs are tax deductible.
The purpose test works like this: interest on a loan is only deductible if the borrowed funds are used to produce assessable income. When you refinance, the ATO looks at what you’re actually doing with the loan proceeds.
If you’re simply switching lenders for a better rate, your interest deductibility stays exactly the same – you’re refinancing the same debt for the same investment purpose, so nothing changes from a tax perspective.
If you’re accessing equity as part of the refinance, the deductibility depends on what you do with the equity. If the equity funds go toward another income-producing investment – such as a deposit on a second investment property – the interest on that portion is likely deductible. If the equity goes toward personal spending, a holiday, or your owner-occupied home, it generally is not.
If you’re consolidating debt by rolling your investment loan and other debts together, you need to be careful. Mixing investment debt and personal debt in the same loan can make it difficult to separate deductible and non-deductible interest. The ATO expects these to be tracked and, in some cases, may disallow mixed-purpose interest claims.
According to the ATO’s own guidance on investment property deductions, keeping clear records of how refinanced loan funds are used is essential, particularly where the loan amount changes at refinancing. This is an area where the structure of your refinance matters as much as the rate – and where a broker’s guidance on getting the loan split right can save you complications at tax time.
As a general rule, speak to your accountant alongside your broker when refinancing an investment property. Your broker handles the loan structure; your accountant confirms the tax treatment. These conversations work best together.
Should You Switch to Interest-Only When You Refinance?
Interest-only periods are popular with property investors because they reduce monthly repayments and improve cash flow – particularly useful when rental yields are tight relative to loan costs. This situation, where rental income is less than loan costs, is known as negative gearing, and the shortfall is generally tax deductible.
However, interest-only periods have limits. Most lenders offer a maximum of five years interest-only on an investment loan, after which the loan reverts to principal and interest repayments. When that happens, your repayments increase because you’re now repaying the full loan balance over a shorter remaining term.
Refinancing at the end of an interest-only period is a common trigger for investors who want to negotiate a new interest-only term with a different lender rather than absorb the higher P&I repayments. Whether this makes sense depends on your cash flow position, your equity, and your longer-term plans for the property.
According to APRA data, interest-only loans represent approximately 35% of total investment lending in Australia as of early 2026, down from a peak of over 45% in 2017 following regulatory intervention. Lenders now apply tighter serviceability buffers to interest-only applications, so getting approval is more straightforward with a broker who understands how different lenders assess these loans.
What's Happening in the Ballina and Northern NSW Property Market?
The Northern NSW coast experienced one of the most significant property booms in Australia between 2020 and 2022, with Ballina, Byron Bay, and surrounding areas seeing values increase by 40% to 60% in some pockets. Since then, values have moderated but largely held, meaning investors who purchased in that period are generally sitting on equity – even if growth has slowed.
Our Ballina market update for 2026 provides current data on where values sit and what’s driving demand in the region. For investors, the key takeaway is that the equity position built through the boom can now be put to work – through refinancing to a better rate, accessing equity for a second purchase, or restructuring a loan that was set up quickly during a fast-moving market and may not have been optimised from day one.
Rental demand along the Northern NSW coast remains strong, supported by lifestyle migration and limited supply of quality rental stock. Gross rental yields for houses in Ballina currently sit in the 4% to 5% range, according to CoreLogic, which for many investors means the property is close to neutral or positively geared at today’s rates – a different position from two or three years ago.
How to Assess Whether Refinancing Makes Sense for Your Investment Property
The honest answer is: it depends on your numbers. Here’s a practical framework for working it out.
Step 1: Check your current rate against the market. If your investment loan rate hasn’t been reviewed in 12 months or more, there’s a reasonable chance it’s above the current market rate. Variable investment rates from competitive lenders currently start around 5.5% to 5.9% for well-structured loans at 80% LVR or below. If you’re paying materially above that, it’s worth comparing.
Step 2: Calculate your break costs if you’re on a fixed rate. Break costs – the fee charged for exiting a fixed rate loan early – are calculated based on the difference between your contracted rate and the current wholesale rate, multiplied by your remaining fixed term. They can be significant, and they need to be weighed against your potential savings. Your broker can help you get a break cost estimate from your current lender.
Step 3: Clarify your equity position. Your broker can order a desktop valuation to give you a current market estimate. From there, you’ll know whether you have usable equity and how much, and whether a cash-out refinance to fund your next move makes sense.
Step 4: Talk to your accountant before you settle on a structure. Particularly if you’re considering changing from interest-only to P&I, accessing equity, or consolidating any debt alongside your investment loan. The tax implications are specific to your situation.
Use our mortgage refinance calculator to model the numbers before you speak to a broker. It gives you a baseline for the conversation.
How Borro Works With Northern NSW Investors
Refinancing an investment loan is more complex than a standard home loan application, and the stakes are higher – both financially and from a tax perspective. Our Northern NSW brokers understand the local market and work regularly with investors who hold property across the Ballina, Byron Bay, and Lennox Head area.
We compare investment loan options across 30+ lenders, look at the full structure of your loan – not just the rate – and work with you and your accountant to make sure the refinance is set up correctly from day one.
If you’d like to understand where your investment loan sits and what your options look like, book a free phone appointment with one of our Ballina-based brokers. There’s no obligation, and it’s a good way to get clarity on a decision that’s worth taking the time to get right.
Frequently Asked Questions
No. Refinancing is a loan transaction, not a property sale, so it does not trigger Capital Gains Tax. CGT only applies when you sell or dispose of the asset. However, the way the refinanced loan is structured can affect the tax deductibility of your interest, so it’s important to understand the ATO’s purpose test before you proceed.
Most lenders include 75% to 80% of your gross rental income in their serviceability assessment. The remaining 20% to 25% is excluded as a buffer for vacancy periods and property expenses. Some lenders use net rental income (after management fees and rates) rather than gross, which can affect your borrowing capacity.
Yes, in most cases. Lenders will assess your ability to service the loan on a principal and interest basis even if you’re applying for interest-only repayments – this is the APRA serviceability buffer requirement. Most investment loans can access an interest-only period of up to five years. After that, you’d need to refinance again to access a new interest-only term or revert to P&I.
Break costs apply when you exit a fixed rate home loan before the end of the fixed term. They’re calculated based on the difference between your contracted fixed rate and the current wholesale funding rate, multiplied by the outstanding loan balance and remaining fixed term. They don’t apply to variable rate loans. Your current lender can provide a break cost estimate on request – always get this figure before committing to refinancing a fixed rate loan.
Not necessarily. Your existing lender has no obligation to offer you their best rate, particularly if you haven’t asked. A broker compares options across 30+ lenders to find the most competitive and appropriate product for your investment structure. In many cases, switching lenders delivers a materially better outcome than renegotiating with your current one.
This article is general information only and does not constitute financial advice. Your personal circumstances may differ. Speak to your broker and accountant about your specific situation.
