Debt Recycling in Australia: Structuring Your Loan the Right Way

If you own a home anywhere in Australia and have some spare cash flow each month, you've probably asked yourself the same question I hear from clients constantly: should I pay down the home loan faster or put that money into investments instead?

Most people treat it as one or the other. It doesn't have to be. Debt recycling is a lending and structuring strategy that lets you do both, converting non-deductible home loan debt into tax-deductible investment debt over time, without increasing your total borrowings.

It's a strategy we get asked about constantly, especially in areas that have seen strong price growth. Take the Northern Beaches, where we're based: most suburbs across the peninsula have averaged 7–9% annual house price growth over the past five years, and many long-term owners in Manly, Balgowlah, Mona Vale and Frenchs Forest are sitting on 30–50% more equity than they had five years ago. We're seeing the same equity story play out with clients across the country. More equity and lower loan balances relative to property value often mean more spare borrowing capacity, and more people asking whether that capacity could be put to better use for tax purposes.

As a mortgage broker, my role isn't to tell you whether debt recycling is right for you financially, that's a conversation for your financial adviser and accountant. But the strategy lives or dies on how the loan is structured. Get the lending mechanics wrong, and you can undo the tax benefit entirely, or worse, trigger a lending or compliance headache down the track. That's where I come in.

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What Is Debt Recycling?

Debt recycling gradually replaces non-deductible home loan debt with tax-deductible investment debt.

It doesn't make your debt disappear, and it doesn't reduce what you owe on its own. You still need genuine surplus cash flow to pay down debt over time. The strategy improves the tax treatment of that debt as you repay it.

Here's why that matters: interest on your home loan isn't tax deductible, because the money was used to buy a home you live in. Interest on an investment loan generally is deductible, provided the borrowed funds are used to earn assessable income, such as dividends from shares.

Your total debt doesn't change. What changes is the tax character of that debt.

A simple example: you repay $50,000 off your home loan, then borrow $50,000 back through a separate loan split and invest it in income-producing shares. You owe the same total amount, but $50,000 that was previously non-deductible debt has become potentially deductible investment debt. Repeat that process over years, and you can end up with a smaller or fully repaid home loan and an investment portfolio funded by deductible debt.

A Structuring Problem, Not a Tax Problem

Whatever the deduction ends up being worth in your situation, and that's a calculation for your accountant, it only holds up if the loan structure is clean. Mix home debt and investment debt in the same loan, or let private spending run through an investment split, and the deduction is at risk. This is the part that trips people up, and it's squarely a lending and structuring issue, which is where I can help.

A 2026 Tax Law Change Worth Knowing About

The rules around negatively geared property are changing, and it's worth being aware of if you're weighing up debt recycling with your adviser. From 1 July 2027, losses on established residential properties purchased after 7:30pm on 12 May 2026 will be quarantined, meaning they can generally only offset income from other residential property, rather than salary or business income, in the year the loss arises. The 50% CGT discount is also being replaced with cost base indexation and a 30% minimum tax rate on real gains, for both property and shares. Existing holdings are grandfathered up to 30 June 2027 (Pitcher Partners; Baker McKenzie).

This is general news, not a recommendation one way or the other. Which asset, if any, you pair with a debt recycling structure is a decision for you and your financial adviser. My focus is on making sure that, whatever you decide, the loan behind it is structured so that the intended tax treatment actually holds up.

Getting the Loan Structure Right

This is where debt recycling succeeds or fails, and it's the part I spend the most time on with clients.

Split every loan by purpose. Home debt and investment debt need to sit in separate loan splits, never combined. If you're investing in more than one asset type, or the investment is owned differently to the loan, those need to be separated too.

Match borrowers to investment owners, or document the difference. If the loan is joint but the investment portfolio is held by one spouse only, that needs a written loan agreement recording that the non-investing spouse has on-lent their share of the funds. Without that paper trail, the deduction on half the loan is exposed.

Treat every redraw as a fresh borrowing event. Its deductibility depends entirely on what the redrawn money is used for. Redraw for shares, that's fine. Redraw for a holiday or a car, and you've contaminated the split.

Use an offset account for the investment loan where possible, rather than paying it down and redrawing later. Offsetting preserves the loan balance and avoids the redraw creating a new, harder-to-trace borrowing event.

Avoid cross-collateralisation. Keeping the home loan and investment loan structurally separate, ideally even across different loan products or lenders where appropriate, protects your flexibility if you ever want to sell one asset without disturbing the other.

None of this is exotic. It's disciplined, unglamorous loan structuring. But it's the difference between a strategy that holds up and one that invites an ATO review.

Borrowing Capacity: The Quiet Constraint

Debt recycling relies on having borrowing capacity to work with, and that capacity has tightened in recent years on the back of higher rates and APRA's serviceability settings. Lenders currently assess your ability to repay at your actual rate plus a 3 percentage point buffer, and APRA confirmed in June 2026 that this buffer is staying put (MPA). On a 6.47% rate, that means the bank tests you as if you were paying 9.47%, which can cut borrowing power by 15–20%.

There are still levers to pull. Credit card limits are typically assessed as a monthly commitment of around 3–4% of the limit, so $100,000 of unused limits can look like a $3,000–4,000 monthly liability on paper, cancelling unused cards or switching to a no-preset-limit charge card can help. Resetting a loan term back out to 30–35 years can reduce the assessed repayment. Lenders also review recent bank statements, so trimming discretionary spending before you apply matters. For self-employed clients, how your income and distributions are structured can significantly help or hinder capacity, which is exactly why your accountant and I need to be talking to each other before you apply.

How much capacity you actually have to put toward debt recycling comes down to your income, expenses, existing debts and the policy of the specific lender, it's rarely a straightforward number, and it's worth working through properly before you commit to a strategy that depends on it.

Loan sizes vary hugely across the country, but in higher-priced markets, Sydney's Northern Beaches among them, many homeowners are working with loan balances where private bank pricing, offset-sweep structures and interest-only periods become relevant options alongside the standard major-bank product set. Whether any of that applies to your situation depends entirely on your numbers, but it's part of why experienced lending advice matters when structuring a debt recycling facility.
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Is Debt Recycling Right for You?

That's a question for your financial adviser, not your broker. It depends on your risk tolerance, timeframe, cash flow buffer and overall financial position, all things a licensed adviser is best placed to assess with you. If you don't already have one and want a referral, let me know.

Common Questions on the Lending Side

Do I need a new home loan to start debt recycling, or can I use my existing one? In most cases you can add an investment loan split to your existing facility, provided your lender allows split loans and the split can be kept genuinely separate from your home loan. Some older loan products don't support this cleanly, which is worth checking before you assume your current lender is the right one for the strategy.

Does debt recycling affect my borrowing capacity for future purchases? Yes. Every dollar of investment debt is assessed the same way as any other borrowing when a lender calculates your capacity for a future loan, at your rate plus the serviceability buffer. If you're planning to upgrade your home or buy again within a few years, that's worth factoring into how aggressively you recycle debt now.

What happens if I want to sell the investment down the track? If the structure is clean, selling the investment and using the proceeds to repay the investment loan is straightforward. This is exactly why avoiding cross-collateralisation matters, a well-structured investment split can be closed out without touching your home loan.

Can I debt recycle with an interest-only loan? Many clients do keep the investment split interest-only while non-deductible home debt remains outstanding, directing surplus cash flow to the home loan instead. Whether that's appropriate depends on your broader lending and risk position, which again is a conversation to have before the loan is set up, not after.

Does having a lot of equity in my property make debt recycling easier to set up? Strong equity growth can support more borrowing capacity, but capacity and equity are two different things, a lender still assesses the new investment split on your income, expenses and existing debts, not just your property's value. It's worth a proper borrowing power assessment before assuming what's possible.

Where I Fit In

I'm not a financial adviser and this article isn't financial, investment or tax advice, it's general information about how the lending side of debt recycling works. If you're considering the strategy, the right first step is a conversation with your financial adviser and accountant about whether it suits your goals.

Once you've got that green light, my job is to make sure the loan structure behind it is set up properly from day one: clean splits by purpose, the right accounts, and a structure that protects your deductions and flexibility for the long haul. Some of the best structuring decisions can only be made when the loan is first set up, so it's worth involving me early rather than after the fact.

Mortgages Plus is based on the Northern Beaches in Sydney and works with 30+ lenders across Australia, including several private banks that suit larger loan sizes, wherever you're based.

Speak to a Mortgage Broker Today

If you'd like to talk through how debt recycling might work with your current loan, get in touch with Mortgages Plus for a free, no-obligation chat, or read more about how we support property investors.

Chris Dodson, Director & Principal, Mortgages Plus

General information only. This article does not take into account your personal objectives, financial situation or needs, and is not financial, investment, tax or legal advice. Before acting on any of this information, you should obtain personal financial, tax and credit advice appropriate to your circumstances. Chris Dodson trading as Mortgages Plus is an authorised Credit Representative (No. 50855) of Australian Mortgage Advisors Group Pty Ltd, Australian Credit Licence No. 388570, and does not hold an Australian Financial Services Licence or provide financial product advice.