Guide
What is debt recycling?
Debt recycling is the practice of replacing home loan debt, which is not tax deductible, with investment debt, which generally is. The total amount owed stays the same. What changes is what the debt is for. In Australian tax law, the purpose of borrowed money decides whether its interest can be claimed.
It is one of the few mortgage strategies that banks rank for but never quite explain. A lender that explained it fully would be explaining borrowing to invest. That sits outside what a credit licence covers. So bank pages define the term and stop. This page goes further, and the risks get the same space as the mechanism.
The mechanism, step by step
A home loan on the house you live in is private debt. Its interest is a cost, and none of it is deductible. A loan used to buy income-producing investments is different. Its interest can generally be claimed against the income those investments produce. Debt recycling moves money from the first category into the second, usually in repeating rounds.
- Money that would otherwise sit in savings is paid into the home loan, reducing the private, non-deductible balance.
- The same amount is borrowed back as a separate loan split, kept apart from the private loan so its purpose stays clean.
- That borrowed money is invested in income-producing assets, most commonly shares or managed funds.
- Investment income and any tax refund are directed back into the home loan, and the cycle repeats.
Each round shrinks the private loan and grows the deductible one. Run over years, the debt slowly changes from the kind the tax system ignores into the kind it recognises.
An illustrative example
A borrower owes $600,000 on their home at 6.2%. They hold $50,000 in savings beyond their emergency buffer. They pay the $50,000 into the loan, borrow it back as a separate split, and invest it. Total debt is still $600,000. Total interest is still about $37,200 a year.
The difference is that roughly $3,100 of that interest now belongs to the investment split. On a 37% marginal tax rate, claiming it is worth about $1,147 a year, every year the arrangement runs. The figures are illustrative and computed from the standard interest formula. They ignore fees, rate changes and what the investment itself does. That last part is where the risk lives.
The risks, given equal weight
Debt recycling is borrowing to invest, and everything true of leverage is true of it. The investment can fall while the debt stays whole. Rates can rise on the entire balance. A job loss makes a large loan uncomfortable however cleverly it is structured. Selling investments in a downturn to relieve the pressure locks the loss in.
There is also a quieter risk: contamination. If borrowed investment money mixes with private money in one loan or account, the purpose test fails. The deduction fails with it. The strategy depends on clean loan splits and disciplined records. That work is administrative rather than clever, and it is where most real versions go wrong.
Who it does not suit
Anyone without secure income, a cash buffer and a long horizon. Anyone on a low marginal tax rate, because the deduction is worth less to them. Anyone who would sell the first time the portfolio falls. And anyone who has not done the simpler things yet. An offset account and extra repayments deliver certain benefit with no leverage. That comes first.
The decision itself touches tax, credit and investment selection. Those are three separately licensed activities. A registered tax agent can confirm what is deductible for you. A licensed financial adviser can tell you whether leveraged investing belongs in your life at all. Unbound is licensed for neither, and this page is general information only.
Common questions
Is debt recycling legal in Australia?
Yes. Borrowing to invest is legal. Claiming the interest on money borrowed to buy income-producing assets is an established part of Australian tax law. What the ATO cares about is purpose. The deduction follows what the borrowed money was used for, not which property secures the loan. People get into trouble by mixing private and investment money in one split.
Which banks allow debt recycling?
Most major lenders can accommodate it, because the ingredients are ordinary: a loan split, a redraw or new borrowing, and an investment account. No bank sells a product called debt recycling, and few will explain it. What matters is whether your loan allows splits, and how cheaply new ones can be created.
When is debt recycling a bad idea?
When income is not secure. When there is no cash buffer. When the horizon is short, or when the borrower would lose sleep watching a leveraged portfolio fall. It also makes little sense on a low marginal tax rate, because the deduction is worth less, or for anyone who may need the money back soon.
Is debt recycling worth it?
It depends on your tax rate, returns, interest rates, horizon and temperament, so no honest general answer exists. The mechanism is real. The same total debt costs less after tax when part of it becomes deductible. Whether that outweighs the risk of borrowing to invest is a personal advice question, for someone licensed to answer it.
Does debt recycling reduce my home loan?
Not by itself. The total debt stays the same. What changes is its character. A slice of private home loan debt becomes investment debt. If the investments produce income and tax refunds, and those go back into the home loan, the private portion falls faster than it otherwise would.
Do I need a financial adviser to do this?
The decision touches personal tax, credit products and investment selection. Those are three licensed activities. A registered tax agent can confirm what is deductible for you. An adviser holding an AFSL can assess whether leveraged investing suits you at all. This page is general information, not a substitute for either.
Related reading: paying off a mortgage faster in Australia covers the unleveraged levers, and offset account disadvantages covers the fine print on the most common of them.
Last reviewed 2026-08-19.