I'm Sam, a finance broker based in Melbourne. This guide explains debt recycling — a strategy some people use to gradually turn part of a home loan into investment debt — without the jargon.
This guide won't make you a financial adviser or a tax agent, and it's not meant to. It's meant to give you the lay of the land, so when you sit down with the right professionals, you know what to ask and what to look out for.
Debt recycling gradually swaps non-deductible home-loan debt for investment debt, using equity you already have. Done properly, the interest on the investment portion may become tax deductible over time. Done without the right structure — or without genuine appetite for investment risk — it can just as easily go wrong. Below: how it works, a worked example, what may qualify, and the risks, before you talk to anyone.
Borrowing to invest can increase gains, but it can also increase losses. You still owe the loan even if the investment falls. When your home is used as security, your home may be at risk.
Read This First
The most important section in this guide, before anything else.
This guide is general education only. It does not know your income, debts, goals, family situation, tax position or ability to handle losses. It is not a recommendation to borrow or invest.
Before Doing Anything, Speak With the Right People
A tax deduction does not make an expense free. It only reduces part of the cost. Never buy a bad investment just to get a tax deduction.
Debt Recycling in One Minute
Changing the purpose of debt — not making debt disappear. Most home-loan interest is private and is usually not tax deductible. Interest on money borrowed for an income-producing investment may be deductible when the loan is correctly used and recorded.
The ATO follows the money. What did the borrowed money actually buy? The house used as security does not, by itself, decide the tax result.
- Keep safety money — keep an emergency fund so you are not forced to sell an investment at a bad time.
- Create a separate loan split — the private home loan and investment loan should be kept separate.
- Pay down private debt — one common method uses savings to reduce a clearly separated part of the home loan.
- Borrow only for the investment — the new split is used only for the approved income-producing investment.
- Use extra cash wisely — investment income and available tax savings may be directed towards the private home loan.
Debt recycling may keep total debt similar at first. The goal is to replace some private debt with investment debt over time.
A Simple $100,000 Example
Two ways a person might invest money that is sitting in an offset account. Meet Alex. Alex has $100,000 in an offset account and wants to invest for the long term.
Path A: Take Cash From the Offset
Alex removes the $100,000 and invests it. The offset becomes smaller, so the home loan is charged more interest. That extra home-loan interest usually stays private and non-deductible.
Path B: Use a Clean Investment Split
After getting financial and tax advice, Alex uses a properly separated investment loan. The borrowed money goes directly to the investment. The interest may be deductible.
Moving money in the wrong order, mixing private spending into the investment loan, or using the wrong account can damage the tax result. Get the structure checked before moving any money.
What Has Changed?
- Alex still has a $100,000 investment.
- Alex still pays interest connected with $100,000.
- The possible difference is the tax treatment of that interest.
- The investment still carries market risk and can fall in value.
Debt recycling tries to make the same investment while using a cleaner, income-producing loan purpose.
The 30-Year Maths Example
A simple illustration — not a forecast or promise.
- Starting investment: $100,000
- Investment return: 8% a year
- Interest rate: 6% a year
- Tax rate used: 47%, including Medicare levy
- Annual interest: $6,000
- Possible annual tax saving: $2,820
- The $2,820 is invested at the end of every year
Illustrated end position after 30 years, under the assumptions above — not a prediction.
Cash Taken From Offset
Clean Investment Loan
The difference comes from investing the tax savings and allowing them to grow. The example ignores tax on dividends and capital gains, fees, inflation, changing rates and market falls.
What would this actually look like for you?
The example above uses fixed assumptions. Your income, your loan, and your real numbers will look different. A 15-minute call can tell you whether the structure even works for your situation.
Book a Free 15-Min CallWhat Investments May Qualify?
There is no automatic master list — the key test is whether the borrowed money is used to earn taxable income.
Interest may be deductible when borrowed money is used to buy or support an investment that earns, or is reasonably expected to earn, assessable income. Only the interest may be deductible — not the amount borrowed.
This is a list of common examples, not a guarantee. The exact facts, ownership and records decide the tax outcome.
Special Advice and Common No-Go Areas
Some investments have difficult or uncertain tax rules. Get specialist advice before borrowing for any of these:
Borrowing for These Private Uses Is Usually Not Deductible
- Your family home or private renovations
- A private car, holiday, wedding or school fees
- Groceries, bills or other living costs
- Paying off private credit cards or personal loans
- An asset bought only for personal enjoyment
Two people can buy the same asset and receive different tax outcomes because their purpose, ownership, loan use and records are different.
Keep the Loan Clean
Good records and separate accounts are a major part of the strategy.
Redraw
Money taken from redraw is generally a new borrowing. The tax result follows what that new borrowing is used for.
Offset Account
Taking your own cash from an offset usually does not change the original purpose of the home loan. The extra home-loan interest normally stays private.
Do not move money first and ask the tax question later. Get the transaction order checked before you start.
Everything above assumes the strategy works as planned. It doesn't always.
The Big Risks
Debt recycling is still borrowing to invest.
Borrowing to invest only makes sense when the expected after-tax return is worth the cost and risk. A tax deduction should be a side benefit, not the reason for investing.
Before You Take the First Step
A simple checklist to discuss with your professional team.
- I have an emergency fund.
- I can still afford the loan if interest rates rise by several percentage points.
- I understand that the investment can fall by 30% to 50% or more.
- I have a long time frame — usually at least 5 to 10 years.
- My investment is diversified and matches my risk level.
- A licensed financial adviser has assessed the investment strategy.
- A registered tax agent has checked the expected tax treatment and transaction order.
- A mortgage broker or credit adviser has checked the loan structure and repayments.
- The private loan and investment loan will be kept separate.
- I know who will own the investment and who will pay the interest.
- I have appropriate insurance and a plan if my income stops.
- I would still choose the investment without the tax deduction.
Build the strategy as a team: financial adviser for the investment, tax agent for the tax treatment, and mortgage broker or credit adviser for the loan.
Not sure if this fits your situation?
A 15-minute call can clarify whether debt recycling is even the right conversation to have, and whether your current loan structure would support it.
Book a Free 15-Min CallSources and Full Disclaimer
Official sources used to check the general principles in this guide (information checked 31 July 2026):
- Australian Taxation Office — Interest, dividend and other investment income deductions
- Australian Taxation Office — Dividend income deductions
- Australian Taxation Office — Rental property interest expenses
- Australian Taxation Office — Managed investment trusts
- ASIC Moneysmart — Borrowing to invest
- Australian Treasury — Budget 2026–27 tax system changes