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Debt Recycling Australia: How It Works [2026]

|3 min read

Turn your mortgage into a tax deduction. Debt recycling converts non-deductible home loan debt into deductible investment debt — here's how.

LC

Lisa Chen

Senior Finance Writer · GradDip Financial Planning, Kaplan Professional

What is debt recycling?

Debt recycling is a strategy where you pay extra on your home loan, then reborrow that amount to invest. The key advantage: interest on your home loan isn't tax-deductible, but interest on an investment loan is. By recycling your debt, you're gradually converting non-deductible debt into deductible debt.

Here's a simple example. You have a $500,000 mortgage at 6%. You pay an extra $1,000/month. Instead of just reducing your loan, you redraw that $1,000 into a separate investment loan and buy shares. The $1,000 investment loan interest is now tax-deductible. Over time, more and more of your total debt becomes deductible.

The end goal: your home loan is paid off, you have an investment portfolio, and the interest on your investment loan reduces your tax bill.

Is debt recycling legal?

Yes. Debt recycling is completely legal and has been accepted by the ATO for decades. The ATO allows interest deductions on money borrowed for income-producing purposes — which includes shares, ETFs, and managed funds that pay dividends.

The critical requirement: you must keep your home loan and investment loan completely separate. The borrowed funds must go directly into investments — not through your offset account, not mixed with personal spending. A clean paper trail is essential.

Many banks offer split loan facilities specifically designed for debt recycling, making it straightforward to keep the two loans distinct.

How much can you save with debt recycling?

The wealth advantage comes from three sources: tax deductions on investment loan interest, investment returns (capital growth plus dividends), and franking credits on Australian shares.

On a $500,000 mortgage at 6% with $1,000/month extra repayments recycled into investments returning 8% (with 3% dividends, 70% franked) at a 37% marginal tax rate, you'd be approximately $180,000-$250,000 better off over 20 years compared to just making extra mortgage repayments.

The tax deductions alone can be worth $5,000-$15,000 per year depending on your loan size and tax bracket. Use our Debt Recycling Calculator to model your exact scenario.

Who should (and shouldn't) consider debt recycling

Good candidates: Homeowners with stable income, a mortgage with extra repayment and redraw facilities, a marginal tax rate of 30% or higher, and a long time horizon (10+ years). You also need the discipline to invest consistently and not panic-sell in downturns.

Not ideal for: People close to retirement, anyone on a low or variable income who might need to access the extra repayments, those with high non-mortgage debt, or anyone uncomfortable with the idea that their investments could lose value while they still owe money.

Debt recycling amplifies both gains and losses. If your investments drop 20%, you still owe the full investment loan. This strategy requires genuine risk tolerance, not just theoretical comfort with volatility.

Step-by-step: how to set up debt recycling

Step 1: Ensure your mortgage has a redraw or offset facility and allows extra repayments without penalty.

Step 2: Set up a separate investment loan split with your bank. This keeps the deductible and non-deductible portions clearly separated.

Step 3: Make extra repayments on your home loan as usual.

Step 4: Periodically (monthly, quarterly, or when you've accumulated a meaningful amount), redraw the extra repayments into your investment loan and invest in income-producing assets.

Step 5: Claim the interest on your investment loan as a tax deduction. Reinvest dividends or use them to accelerate home loan repayments.

Most financial advisers recommend diversified ETFs (like VAS, VGS, or A200) as the investment vehicle — they pay regular dividends (creating the income-producing purpose the ATO requires) and are low-maintenance.

Risks and things to watch out for

The biggest risk is investment underperformance. If your investments return less than your mortgage rate after tax, you'd have been better off just paying down the mortgage. Historically, Australian equities have returned 8-10% nominal over the long term, but individual years can be brutal.

Other risks: interest rate rises increasing your repayments on both loans, changes to tax laws reducing the deductibility of investment loan interest, and the temptation to over-leverage. A good rule: never recycle more than you're comfortable losing in a market crash.

Get professional advice before starting. A good financial adviser or accountant can structure the strategy correctly and ensure you're meeting ATO requirements for deductibility.

General information and estimates only — not financial, tax, or legal advice. Always verify with a licensed adviser or the ATO.

LC

About Lisa Chen

Lisa spent seven years as a financial planner at a mid-tier firm in Melbourne before switching to finance writing full-time. She specialises in tax planning, superannuation strategy, and helping everyday Australians make sense of their money. She holds a Graduate Diploma in Financial Planning from Kaplan Professional.

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