Last updated: July 2026 · Reviewed by John Pierre Saliba, Director and Mortgage Broker, MFAA Accredited
What Is Debt Recycling?
Debt recycling is a tax-effective strategy that involves using the equity in your owner-occupied home to invest in income-producing assets, converting non-deductible mortgage debt (your home loan interest, which is not deductible) into deductible investment debt (interest on investment loans, which is deductible). Over time, the tax savings from the deductible investment interest, combined with the investment returns, can significantly accelerate your wealth building.
Debt recycling works best for disciplined investors who are committed to the strategy long-term and have the income to service both their home loan and the investment debt. The key risks are: choosing investments that underperform, structuring the accounts incorrectly (mixing deductible and non-deductible debt), and abandoning the strategy during a market downturn. Done correctly with the right loan structure, it's one of the most effective legal tax strategies available to Australian homeowners.
How Debt Recycling Works, Step by Step
- Step 1: Make extra repayments on your owner-occupier home loan (reducing non-deductible debt)
- Step 2: Redraw those extra repayments as a separate investment loan (creating deductible debt)
- Step 3: Use the redrawn funds to purchase income-producing investments (shares, ETFs, investment property)
- Step 4: Investment income (dividends, rent) is used to make further home loan repayments
- Step 5: Repeat, gradually converting all owner-occupier debt to deductible investment debt
The Tax Mechanism
Interest on your home loan is not deductible (personal use). Interest on investment loans is deductible against investment income (and against other income under negative gearing rules). By converting the debt purpose, same dollar amount, different use, you transform a non-deductible expense into a deductible one. At a 37% marginal tax rate, a $40,000 investment loan incurring $2,600 in interest generates a $962 tax benefit per year.
Critical Loan Structure Requirements
- Owner-occupier loan and investment loan must be in completely separate accounts
- Investment funds must not be mixed with personal funds
- Dividends and investment income must go to the home loan offset, not the investment account
- A redraw facility (not offset) on the home loan is required for the strategy to work cleanly
- Your accountant must be aware of and aligned with the strategy from day one
Worked Example: Debt Recycling in Sydney
- Home loan balance: $600,000 (non-deductible)
- Extra repayments over 12 months: $30,000
- Redrawn as investment loan: $30,000
- Invested in diversified ETF (4% dividend yield): $1,200/year dividends
- Investment loan interest (6.49%): $1,947/year, deductible
- Tax benefit (37% bracket): $720/year
- Net investment income after interest and tax: ~$1,200 dividends − $1,947 interest + $720 tax benefit = -$27/year (near-neutral cashflow)
- After 5 years repeating: $150,000 of investment debt, annual tax benefit ~$3,600, portfolio growing independently
Risks to Understand
- Investment values can fall, your investment debt remains even if the portfolio drops
- Incorrect structure invalidates deductibility, ATO scrutiny is high
- Cash flow discipline required, extra repayments must be consistent
- Requires professional tax advice, not a DIY strategy
