Yes, generally, when it is structured correctly. The interest on money borrowed to buy income-producing investments is usually deductible, but the deduction turns on how the funds are used and how the loan is set up.
The interest on a debt recycling loan is generally tax-deductible when the borrowed money is used to produce assessable income, such as dividends from shares or rent from a property. What decides deductibility is the use of the funds, not the asset used as security. So a loan secured against your home can still produce deductible interest, provided the borrowed money actually goes into an income-producing investment and the loan is kept clean. Get the structure wrong, or mix borrowed money with private spending, and the deduction can be reduced or lost. This is general information, not tax advice: a registered tax agent should confirm your position.
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Australian tax law has a long-standing principle at its centre: you can generally claim a deduction for interest on money you borrow to produce assessable income. Assessable income means income you have to declare and pay tax on, such as dividends from shares, distributions from managed funds and exchange-traded funds (ETFs), or rent from an investment property.
Debt recycling relies on exactly this principle. The strategy converts a home loan, where the interest is not deductible because your home does not produce income, into an investment loan of the same size, where the interest generally is deductible because the borrowed money now produces income. The debt total does not rise. What changes is the purpose the borrowed money serves, and with it the tax treatment of the interest.
By contrast, the interest on the loan against your family home is not deductible. Your home is where you live, not an income-producing asset, so there is no assessable income for the borrowing to be connected to. That difference between deductible and non-deductible debt is the whole reason debt recycling exists.
The single most important idea to grasp is this: deductibility is decided by what the borrowed money is used for, not by the asset used as security for the loan. The Australian Taxation Office (ATO) looks through to the use of the funds. This is often called the purpose or use test.
People frequently get this backwards. They assume that because a loan is secured against the family home, the interest can never be deductible. That is not how it works. If you draw funds from a loan, even one secured against your home, and use that money to buy income-producing investments, the interest on that portion is generally deductible. The security sitting behind the loan is not the deciding factor.
The reverse is also true, and this is where people get caught out. If you borrow against an investment property but use the money to buy a car or pay for a holiday, the interest on that portion is generally not deductible, because the funds were used for a private purpose. The lender's security does not save the deduction. What matters is where the money went.
The rule in one line: follow the money, not the mortgage. Interest is deductible to the extent the borrowed funds are used to produce assessable income, regardless of what asset secures the loan.
Because the use of funds decides everything, it helps to see the common situations side by side. The table below is a general guide only; your own position can differ, and a registered tax agent should confirm it.
| Situation | Interest generally deductible? |
|---|---|
| Funds drawn from an investment split and used to buy shares or ETFs that pay dividends | Yes, generally |
| Funds used to buy an investment property that produces rent | Yes, generally |
| The loan against the home you live in | No |
| Funds borrowed for a car, holiday or other private spending | No |
| One loan used partly for investing and partly for private spending (a mixed or contaminated loan) | Only in part, and it can be difficult to separate the two |
| Interest on a loan used to buy an asset that produces no income at all | Often not, and this needs specific advice |
Notice the last two rows. A mixed-purpose loan is the classic trap in debt recycling, and an asset that produces no assessable income can put the connection to income at risk. Both are reasons the loan structure matters so much.
In theory the purpose test is simple. In practice, the deduction is only as clean as the loan behind it. If deductible investment borrowings and non-deductible private borrowings end up mixed in the same loan account, the interest becomes difficult to apportion, and in some cases the deduction is compromised.
This is why debt recycling is built on separate loan splits, not one blended loan. A properly structured strategy uses a dedicated investment split that funds only income-producing investments, kept entirely apart from the loan on your home. That separation is what lets you draw a clear line from the borrowed money to the asset it bought, which is precisely what the purpose test asks you to demonstrate. Our guide to debt recycling loan splits explains how the splits work, and our loan structure page shows how we build it for a client.
The most common way people undo their own deduction is by treating an investment split like a general redraw facility, dipping into it for private spending. Once that happens, the split is no longer purely for investment, and the mixing can be near-impossible to unwind for tax purposes. This mistake has its own name and its own guide: read the redraw contamination trap to see exactly how it happens and how to avoid it.
Keeping the deduction is not only about setup, it is about proof. If the ATO ever asks, you need to be able to trace the borrowed money to the income-producing asset with statements and contracts. That is a topic in its own right, covered in our guide to record-keeping for debt recycling.
Some people ask whether they can let the interest on the investment split accumulate, or capitalise, rather than paying it from their own pocket, so that even more of their cash can go towards the home loan. On paper it looks efficient. In practice it is one of the more sensitive areas of debt recycling, and it is not a do-it-yourself decision.
Arrangements that capitalise interest, particularly where the dominant purpose looks like obtaining a tax benefit rather than genuinely investing, can attract close ATO scrutiny under the general anti-avoidance rules. The tax outcome depends heavily on how the arrangement is set up and why. This is not something to guess at from a forum post. If capitalising interest is something you are considering, it needs specific advice from a registered tax agent before you go anywhere near it.
Everything above describes general principles. How they apply to you depends on your specific circumstances, the assets you hold, and the tax law as it stands at the time. Tax law and ATO views can change, and the interaction between deductibility, your marginal tax rate and your wider position is not something a website can answer for your situation.
There is also a clear line between what we do and what a tax agent does. We are mortgage brokers: we arrange and structure the lending that makes a clean, deductible-friendly strategy possible. We do not provide tax advice, and we do not lodge your return. Confirming that your interest is deductible, and claiming it correctly, is the job of your registered tax agent, who considers your full circumstances.
The two roles fit together. We build the loan so the structure supports deductibility, your adviser recommends the income-producing assets, and your tax agent confirms and claims the deduction. When those pieces line up, the strategy tends to hold up. When to sell and what that does to your position is a separate question, covered in our guide to debt recycling and capital gains tax.
A note on tax advice. This page is general information only and is not personal tax, financial or legal advice. Deductibility depends on your individual circumstances and the tax law in force at the time, both of which can change. Before you act, obtain advice from a registered tax agent about your own position.
Get a free, no-obligation estimate, or talk it through with a licensed broker who structures debt recycling loans every week.
Book a free call →Generally, yes, to the extent the borrowed money is used to buy investments that produce assessable income. The deduction depends on the funds being used and documented correctly, and on your individual circumstances. A registered tax agent should confirm your position.
No. Deductibility is decided by what the borrowed money is used for, not by the asset used as security. If funds drawn from a home-secured split are used to buy income-producing investments, the interest on that portion is generally deductible.
That mixes deductible and non-deductible borrowings in the one split, which is known as contamination. Apportioning the interest afterwards is difficult, and part or all of the deduction can be lost. Keeping each split single-purpose is what avoids this.
Sometimes people do, but it is a sensitive area that can attract scrutiny under the anti-avoidance rules, especially where the dominant purpose looks like a tax benefit. Do not attempt it without specific advice from a registered tax agent.
No. We are mortgage brokers and structure the lending so the strategy supports deductibility. Confirming and claiming the deduction is the role of your registered tax agent, and choosing the assets is the role of your financial adviser.
The mixing-of-funds mistake that can void your deduction.
Read more → GUIDEHow to prove your interest is deductible if the ATO asks.
Read more → STRUCTUREThe split setup that keeps deductions clean from day one.
Read more →