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Debt Recycling Australia: What It Is and How to Do It in 2026

🏠 Home Loans10 min read

Debt recycling converts your non-deductible home loan into tax-deductible investment debt. Here's exactly how it works, how to set it up, and the risks you need to know.


Debt recycling is a strategy that converts your non-deductible home loan β€” the mortgage on your own home β€” into tax-deductible investment debt over time. Done correctly, it reduces your non-deductible interest, creates an income-producing investment portfolio, and generates tax deductions along the way. Done incorrectly, it triggers ATO scrutiny and wipes out the tax benefit.

This guide explains exactly how debt recycling works, walks through the mechanics, and is honest about the risks.

What debt recycling actually does

Interest on your home loan is not tax deductible. You pay it with after-tax dollars, get nothing back, and there is no upside except building equity.

Interest on money borrowed to invest in income-producing assets β€” shares, ETFs, managed funds β€” is generally deductible under section 8-1 of the Income Tax Assessment Act 1997. You still pay the interest, but you get a portion back through your tax return.

Debt recycling converts the first type into the second type, step by step:

  1. You make a lump-sum payment against your home loan principal (using savings, a bonus, or investment income)
  2. You immediately redraw that same amount from the loan
  3. You invest the redrawn funds directly into income-producing assets (shares or ETFs)
  4. The redrawn amount is now "investment debt" β€” the interest on it is deductible
  5. You repeat the process each time you have additional funds to deploy

Over years of repetition, you gradually replace non-deductible home loan debt with deductible investment debt. The total debt stays the same, but the tax treatment improves each cycle.

Use the Mortgage Repayment Calculator to model your loan balance over time and see how additional repayments accelerate your equity build-up before each recycle.

Step-by-step: how to set it up

Step 1 β€” Set up a split loan account

Ask your lender to split your home loan into two separate accounts:

  • Account A: your existing home loan (non-deductible)
  • Account B: a new sub-account with a $0 balance and redraw facility

This split is essential. If you mix deductible and non-deductible borrowing in one account, the ATO applies a "blended" calculation that complicates your deduction claims. Keeping them separate creates a clean paper trail.

Most major lenders offer split loan facilities. Some charge a small setup fee ($100–$300).

Step 2 β€” Build up savings or lump sum

You need cash to make the initial lump-sum payment. This might be:

  • Annual savings from income
  • A tax refund or work bonus
  • Proceeds from selling other assets
  • Investment distributions

There is no minimum β€” even $5,000 cycles work β€” but smaller amounts generate smaller deductions and more administrative effort.

Step 3 β€” Pay the lump sum off Account A

Direct your savings to Account A (the home loan). This reduces your non-deductible principal and saves you interest.

Step 4 β€” Immediately redraw from Account B

Redraw the same amount from Account B and transfer directly to your brokerage account or investment platform. Do this on the same day or within a few days β€” do not let the money sit in your bank account or offset account first.

This timing matters for the ATO. The nexus between the borrowing (redraw) and the investment use must be clear. If you redraw into your transaction account and the money sits there for weeks before investing, the ATO may question whether the borrowing was genuinely for investment purposes.

Step 5 β€” Invest directly in income-producing assets

Buy your chosen investment β€” typically a diversified ETF (VAS, DHHF, VGS) or a managed fund. The investment must produce income (dividends or distributions) for the interest to be deductible. Growth-only assets with no income are harder to defend as deductible borrowing purposes.

Step 6 β€” Claim the interest deduction

At tax time, the interest charged on Account B is a deductible expense against your investment income. Report it at label D7 (interest on investment loans) in your tax return. Keep your bank statements and brokerage records.

Step 7 β€” Repeat

Each year (or whenever you have a new lump sum), repeat steps 3–6. Your Account A balance shrinks. Your Account B balance and investment portfolio grow together.

What the tax saving actually looks like

The deduction does not eliminate your interest β€” it reduces the after-tax cost.

Example: $50,000 redrawn at 6.0% interest = $3,000/year in interest on Account B.

At a 32% marginal rate (income $45k–$135k):

  • Tax deduction: $3,000 Γ— 32% = $960 refund
  • Net interest cost: $3,000 βˆ’ $960 = $2,040/year
  • Effective rate: 4.08% instead of 6.0%

At a 39% marginal rate (income $135k–$190k):

  • Tax deduction: $3,000 Γ— 39% = $1,170 refund
  • Net interest cost: $1,830/year
  • Effective rate: 3.66%

This is why debt recycling is most powerful for higher-income earners. The higher your marginal rate, the larger the deduction, and the lower your effective borrowing cost.

Marginal rate (incl. Medicare)Interest cost (6.0%)After-deduction costEffective rate
17% ($18k–$45k)$3,000$2,4904.98%
32% ($45k–$135k)$3,000$2,0404.08%
39% ($135k–$190k)$3,000$1,8303.66%
47% ($190k–$250k)$3,000$1,5903.18%

How debt recycling compares to just using an offset account

The offset account is simpler, lower risk, and more accessible. Debt recycling is more complex and carries investment risk β€” but can generate materially more wealth if the investments perform.

Debt recyclingOffset account
Return mechanismInvestment returns + tax deductionGuaranteed = mortgage rate
RiskMarket risk (investments can fall)Zero risk
Tax benefitDeductible interestNo tax (just saves non-deductible interest)
AccessibilityInvestments can be sold (T+2)Immediate
ComplexityHigh β€” split loan, records, annual deductionLow
Best forHigh earners with long horizon and risk toleranceMost people building a mortgage buffer

For most homeowners, building a solid offset account first (three to six months of expenses) is the right step before exploring debt recycling. See our offset account vs redraw guide for the foundation.

The risks you need to understand

Investment losses do not reduce your debt. If your $50,000 investment portfolio drops to $35,000, you still owe $50,000 on Account B. You cannot claim the capital loss against the interest deduction. The investment risk is entirely yours.

ATO scrutiny if the structure is messy. The key rule is that the borrowed money must flow directly into income-producing investments. Mixing funds, routing through offset, or delays between redrawing and investing can break the nexus and cost you the deduction. Keep Account B strictly for investment redraws β€” nothing else.

Mortgage repayment stress. Debt recycling does not reduce your total debt β€” it changes the composition. If interest rates rise or your income drops, you still have the same total debt to service. Some people feel more secure having a smaller mortgage even if the maths favour debt recycling.

CGT on exit. When you eventually sell the investment portfolio (to pay off the loan in retirement, for example), you will pay CGT on the gains. From July 2027, individual investors lose the 50% CGT discount β€” a 30% minimum tax applies instead. Plan your exit timing accordingly.

It does not make sense at low incomes. Below $45,000, your marginal rate is 17% β€” barely above the 15% super tax rate and not high enough to make the debt recycling maths compelling. At that income level, salary sacrifice into super and keeping the offset healthy is a better use of energy.

Worked example: 10-year debt recycling plan

Marcus is 40, earns $145,000, has a $500,000 mortgage at 6.0% and $30,000 in savings.

He sets up a split loan. Account A: $500,000. Account B: $0.

Year 1:

  • Pays $30,000 off Account A β†’ balance $470,000
  • Immediately redraws $30,000 from Account B β†’ buys $30,000 DHHF ETF
  • Interest on Account B: $30,000 Γ— 6.0% = $1,800/year
  • Tax deduction at 39% MTR: $702/year refund

Year 2:

  • Saves another $28,000 from salary plus $1,200 ETF distributions
  • Pays $29,200 off Account A β†’ balance $440,800
  • Redraws $29,200 β†’ buys more DHHF
  • Account B now: $59,200. Annual interest: $3,552. Annual deduction: ~$1,385.

After 10 years (approximate):

  • If Marcus saves $28,000–$35,000/year and repeats the cycle:
  • Account A (home loan) reduced from $500,000 to approximately $200,000
  • Account B (investment loan): approximately $300,000
  • ETF portfolio (at 8% annual return, growing from distributions reinvested): approximately $390,000
  • Annual interest deduction: $300,000 Γ— 6.0% Γ— 39% = ~$7,020/year tax saving

When Marcus sells the portfolio at retirement to clear Account B, he will owe CGT on the gains. But the portfolio has grown from $300,000 to $390,000+ in a tax-advantaged structure with 10 years of deductions claimed along the way.


Frequently asked questions

Is debt recycling legal in Australia?

Yes. Debt recycling is a well-established strategy that relies on the standard principle that interest on money borrowed to earn assessable income is deductible under section 8-1 of the ITAA 1997. It is not a tax scheme or arrangement β€” it is the application of ordinary tax rules. The ATO has not specifically ruled against it, provided the structure is clean (direct use of borrowed funds for investment, not mixing purposes).

Can I debt recycle with a fixed-rate mortgage?

Generally no, or only partially. Fixed-rate loans typically have no redraw facility, and making extra repayments often triggers break costs. Debt recycling requires a variable-rate loan with a redraw or a split loan where the investment portion is on variable terms. Check with your lender before attempting this on a fixed loan.

What investments can I use for debt recycling?

Any income-producing investment: shares, ETFs, managed funds, listed investment companies (LICs). The key requirement is that the asset must produce income (dividends or distributions), establishing the income-producing purpose of the borrowing. Growth-only assets with zero distributions are harder to justify as deductible borrowing. Practically, diversified ETFs like DHHF, VAS, or VGS are the most common choice β€” they pay regular distributions and are easy to buy and hold.

Can I use debt recycling to invest in property?

No β€” debt recycling is specific to your primary residence loan and is used to invest in financial assets. You cannot redraw from your home loan and buy another property through this mechanism (that would be a separate investment loan with different tax treatment). Debt recycling is purely about converting home loan debt into share/ETF investment loan debt.

Do I need a financial adviser to debt recycle?

You do not need one by law, but the strategy is complex enough that professional advice is worth considering β€” particularly for setting up the loan split correctly, ensuring you maintain a clean paper trail, and modelling the tax outcomes at your specific income. A fee-for-service financial adviser or accountant can review the structure. If you proceed without advice, keep meticulous records of every repayment and redraw.

How is debt recycling taxed at the end?

When you sell the investment portfolio (for example, to repay Account B when you retire), you will pay CGT on any capital gains. From 1 July 2027, the individual CGT discount changes from 50% to a 30% minimum tax rate. This affects the after-tax proceeds on exit. Factor this into your long-term modelling β€” holding periods and exit timing matter.


This article is for general information only and does not constitute financial, tax or legal advice. Individual circumstances vary. Consult a registered tax agent or licensed financial adviser before making decisions based on this information.

MP

Written by

Mahi Patil

Software engineer & personal finance enthusiast Β· Melbourne, Australia

Built Dolaro.com.au to create accurate, free Australian finance tools. Invests in Australian and global ETFs and writes about the topics researched firsthand. More about Mahi β†’

Last updated: Β· By Mahi Patil

This article is general information only and does not constitute financial advice.

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