How to Use a Line of Credit for Debt Recycling

A line of credit lets you draw funds as you need them, which makes it one of the most flexible structures for debt recycling.

Instead of taking a lump sum loan upfront, you access equity progressively and invest it when market conditions or your cashflow allow. The interest you pay on the drawn portion becomes tax deductible when the funds are used to purchase income-producing investments, while your non-deductible home loan balance reduces over time.

Why a Line of Credit Suits Debt Recycling

A line of credit only charges interest on the amount you draw, not the total approved limit. You might have access to $100,000 in equity, but if you only draw $20,000 in the first month, you only pay interest on that $20,000. As you pay down your non-deductible home loan, you can draw more from the line of credit and invest again, converting more debt from non-deductible to deductible.

This structure supports the core principle of debt recycling: replacing debt that costs you money with debt that builds wealth. You control the pace, the timing, and the size of each investment.

How the Draw and Invest Cycle Works

Consider a homeowner in Adelaide with a $400,000 home loan and $150,000 in available equity. They set up a line of credit for $100,000 and leave it undrawn initially. Each month, they make extra repayments toward their home loan. Once they have paid down $10,000, they draw $10,000 from the line of credit and invest it in an exchange-traded fund that pays dividends.

The interest on that $10,000 draw is now tax deductible because the funds were used for investment purposes. Their overall debt position has not changed, but the composition has. They now have $10,000 less non-deductible debt and $10,000 more deductible debt. They repeat this cycle every few months, converting more of their home loan into investment debt as their cashflow allows.

This approach works particularly well for South Australian homeowners who want to build wealth without disrupting their household budget. You are not forced to invest a large sum at once or commit to a fixed schedule.

Setting Up the Loan Structure Correctly

Your line of credit must be completely separate from your home loan. If the two are mixed, the ATO will not allow you to claim the full interest deduction. Most lenders can split your facility so that your home loan sits in one account and the line of credit sits in another, both secured against the same property.

The line of credit should only ever be used for investment purchases. If you draw funds to pay for a holiday or a car, that portion of the interest is no longer deductible. Keeping the line of credit quarantined means every dollar of interest can be claimed at tax time.

Some lenders offer offset accounts attached to the line of credit. Avoid using these for personal savings. The offset reduces the interest you pay, which also reduces your tax deduction. Park your savings in an offset account attached to your non-deductible home loan instead, where reducing interest has no tax consequence.

For help accessing finance that fits this structure, work with a broker who understands how lenders assess debt recycling arrangements.

Interest-Only Repayments on the Investment Portion

Most debt recycling strategies use interest-only repayments on the line of credit. You are not trying to pay down the investment debt quickly because that debt is working for you. The tax deduction lowers the effective cost of the interest, and the investment itself should grow in value or generate income over time.

Meanwhile, you continue making principal and interest repayments on your home loan. Over time, your non-deductible debt shrinks and your deductible debt grows. The total debt stays roughly the same, but the tax treatment shifts in your favour.

If you structure the line of credit as principal and interest, you will pay down the investment debt and reduce your tax deduction. That defeats the purpose of the strategy.

Managing Cashflow and Dividend Reinvestment

One advantage of using a line of credit is that you can adjust the pace of recycling based on your income, expenses, and market conditions. If your household budget tightens, you pause the cycle. If you receive a bonus or tax refund, you can accelerate it.

Many investors reinvest dividends or distributions back into the portfolio rather than using them to pay down the line of credit. This compounds the growth of the investment side while keeping the deductible debt in place. The dividends themselves are taxable income, but they also contribute to building the investment balance.

If cashflow becomes an issue, you can redirect dividends to cover the interest on the line of credit. This creates a self-funding loop where the investment helps pay for the debt used to acquire it. Just make sure the investment income is enough to cover the interest, or you will need to fund the gap from your salary.

For home owners looking to build wealth while maintaining financial flexibility, this level of control is hard to match with other loan structures.

Risks and Compliance Considerations

A line of credit gives you access to equity, but it also creates risk if the property market falls. If your property value drops, the lender may reduce your approved limit or ask you to repay part of the drawn balance. This is more common with lines of credit than with term loans because the lender reassesses your equity position regularly.

You also need to keep detailed records of every draw and every investment purchase. The ATO will expect you to prove that the borrowed funds were used for income-producing purposes. If you draw $15,000 and invest $14,000, you can only claim interest on the $14,000. Keep bank statements, brokerage confirmations, and a spreadsheet that links each draw to a specific investment.

Another compliance point: the investment must genuinely be held for the purpose of producing income. Shares that pay no dividends or growth assets with no distributable income may not meet the ATO's definition. Most Australian shares and managed funds qualify, but speak to your accountant before investing in speculative assets.

For details on how to structure your approach, refer to our page on defining your debt recycling strategy.

When a Line of Credit Works and When It Doesn't

A line of credit works well if you want flexibility, if you are making regular extra repayments on your home loan, or if you prefer to invest progressively rather than all at once. It also suits investors who want to dollar-cost average into the market over several months or years.

It is less suitable if you want certainty around repayments or if you struggle with discipline. Because the line of credit is always available, there is a temptation to draw funds for non-investment purposes. If you do that, you compromise the tax deduction and undermine the strategy.

It is also not ideal if you are planning to sell your home in the next few years. Debt recycling is a long-term wealth strategy. If you sell the property, the line of credit will need to be repaid, and you may be forced to sell investments at an inconvenient time.

For property investors with multiple properties, a line of credit can be attached to an investment property instead of your home. This keeps your home loan separate and may offer additional tax planning opportunities.

Reviewing and Adjusting Over Time

Debt recycling is not a set-and-forget strategy. You should review the structure at least once a year with your broker and accountant. Check whether your line of credit limit still reflects your available equity, whether your investment portfolio is performing as expected, and whether your cashflow can support further draws.

If interest rates rise, the cost of holding the line of credit increases. You may need to slow the pace of recycling or redirect investment income to cover the higher repayments. If rates fall, you might accelerate the cycle and convert more debt in a shorter time.

Some borrowers choose to refinance their entire structure every few years to access better rates or higher equity limits. This can reset the debt recycling process and give you more capital to work with, but it also comes with refinancing costs and potential break fees if you are on a fixed rate.

Once your non-deductible home loan is fully paid off, the debt recycling cycle is complete. At that point, you own your home outright and hold an investment portfolio funded entirely by tax-deductible debt. You can choose to keep the line of credit in place and continue investing, or close it and hold the portfolio debt as a term loan.

Call one of our team or book an appointment at a time that works for you to discuss whether a line of credit fits your situation and how to structure it correctly from the start.

Frequently Asked Questions