Smart ways to use home equity for investment property

How The Ponds property owners can access usable equity, structure the lending correctly, and build a portfolio without starting over.

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Your home in The Ponds has likely grown in value since you purchased it.

That increase sits on paper until you sell or release it through refinancing. Most property owners don't realise that usable equity becomes available well before the home is fully paid off, and that equity can fund a deposit on a second property without liquidating your current one.

The decision to leverage equity into an investment property hinges on three factors: how much you can access, how the loan is structured, and whether the numbers support holding both properties long-term. This article walks through each of those steps with specific reference to The Ponds market and the lending constraints that apply from early this year.

How much equity can you actually use

Usable equity is the difference between your home's current value and 80 per cent of that value, minus what you still owe.

Consider a scenario where you purchased a house in The Ponds several years ago and the property is now valued at the suburb's current median of around $1,600,000. You owe $900,000. Eighty per cent of $1,600,000 is $1,280,000. Subtract the $900,000 debt and you have $380,000 in usable equity without triggering Lenders Mortgage Insurance.

That $380,000 becomes your deposit and cost buffer for the investment property. It covers the purchase deposit, stamp duty, legal fees, and any LMI on the investment loan if you're borrowing above 80 per cent on the second property. Lenders will assess your ability to service both loans simultaneously, applying a serviceability buffer of 3.0 percentage points above the actual interest rate and accounting for any rental income from the investment property.

Debt-to-income limits now apply to investor lending

From February this year, APRA introduced a cap that restricts banks from lending more than 20 per cent of new investor loans to borrowers with a debt-to-income ratio of six times or more.

If your total borrowings across both properties reach six times your gross household income, some lenders may decline the application or reduce the loan amount to stay within the cap. Others may still approve if you fall within their 20 per cent allocation, but approval is no longer automatic.

In our experience, households with two full-time incomes and modest personal debt can often stay below the six-times threshold when buying within the Hills District. Households with a single income or existing car loans and personal debt may need to reduce the investment loan amount, increase the deposit from equity, or wait until income rises or debt is cleared. A broker can model your specific position and identify which lenders are still writing investor loans at higher DTI levels within their allocation.

Ready to get started?

Book a chat with a Mortgage Broker at SAT Home Loan today.

Should you split the loan or keep it separate

When you refinance to release equity, you have two structural options: increase the loan on your home and transfer cash to buy the investment property, or establish a new split loan secured against your home with the funds tyrected specifically to the investment purchase.

The second option is almost always preferable. By keeping the investment borrowing in a separate split, the interest on that split remains clearly tied to the investment property and is deductible against rental income. If you blend the borrowings together or use released equity for a mix of purposes, the deductibility becomes difficult to track and the ATO may disallow part of the claim.

For a borrower releasing $380,000 in equity from a Ponds home to fund an investment deposit, the structure would involve three loans: the original home loan of $900,000, a new investment split of $380,000 secured against the home, and the investment property loan secured against the new property. Interest on the investment split and the investment property loan is deductible. Interest on the original home loan is not.

Interest-only or principal and interest on the investment loan

Most property investors choose interest-only repayments on the investment property loan for the first five years to maximise cash flow and tax deductions.

Under the prudential framework, banks can offer interest-only periods on investment loans at LVRs up to 80 per cent without classifying the loan as non-standard. Above 80 per cent LVR, or where the interest-only period exceeds five years, the loan attracts a higher capital weighting and most lenders either decline or price the loan significantly higher.

Interest-only repayments on an investment loan mean the full interest cost remains deductible each year, and surplus cash flow can be directed toward paying down the non-deductible debt on your home. Once the interest-only period expires, the loan typically reverts to principal and interest unless you reapply to extend it. Some lenders allow one extension, others do not. The repayment increase at reversion can be substantial, so it's worth planning for that step before you take out the loan.

What happens if rental income falls short

Rental income is included in your serviceability assessment, but lenders apply a haircut to account for vacancy and management costs, typically between 20 per cent and 30 per cent depending on the lender.

If you purchase an investment property with an expected rent of $700 per week, the lender may only credit you with $490 to $560 per week in the serviceability calculation. If the property sits vacant for a period or tenants fall behind on rent, your ability to meet both mortgage repayments depends on your salary and savings buffer, not the rental income.

The Ponds has a low vacancy rate and strong demand from families seeking modern housing with access to local schools and the Metro line, but no suburb is immune to turnover. A two-week vacancy between tenants, or a one-month gap while the property is refreshed, should not push you into hardship. If it would, the loan amount is too high.

The benefit of holding both properties long-term

Property investors in The Ponds and the broader Hills District are typically focused on capital growth rather than yield, given that rental returns on houses in the area sit between 2.5 per cent and 3.0 per cent.

For properties acquired before May last year, rental expenses including interest can still be deducted against all income, which reduces the after-tax cost of holding the investment property even when it's negatively geared. For properties purchased after that date, losses can only be offset against other residential property income unless the property is an eligible new build.

Regardless of when you buy, the long-term value in holding two properties is that both benefit from compound growth without requiring you to save a second deposit from scratch. A home in The Ponds and an investment property in a suburb with stronger rental yield, such as Parramatta or Northmead, give you exposure to two different segments of the Sydney market and reduce concentration risk.

From July next year, capital gains on investment properties will be taxed under a new indexed cost base system rather than the current 50 per cent discount, but gains accruing before that date remain under the old rules. For investors purchasing now, the transition provisions allow you to split the gain at the July cut-off and apply the most favourable treatment to each portion.

Refinancing to access equity without selling

Accessing equity requires a formal refinance or top-up application, which involves a new valuation, updated income verification, and a full credit assessment.

Lenders treat the additional borrowing as new lending, so current serviceability rules apply even though you've held the property for years. If interest rates have increased since your original loan was written, your borrowing capacity may have fallen, and the amount of equity you can access may be lower than expected.

Some borrowers assume they can access equity by simply requesting a redraw or increase, but redraw is only available if you've made extra repayments above the minimum. Equity release requires increasing the loan limit, which is a different process. If you have an offset account rather than redraw, the cash in the offset does not reduce the loan balance for the purpose of calculating usable equity under the 80 per cent LVR threshold.

If you're considering refinancing to release equity, start the conversation with a broker before you begin property shopping. The approval timeline can be several weeks, and you'll want certainty on the amount before making an offer.

Call one of our team or book an appointment at a time that works for you. We'll model your usable equity, confirm your serviceability under the current DTI limits, and structure the lending to keep the investment borrowing separate and deductible from day one.

Frequently Asked Questions

How much equity can I use from my home without paying LMI?

You can typically access equity up to 80 per cent of your home's current value without triggering Lenders Mortgage Insurance. The usable amount is 80 per cent of the valuation, minus what you still owe on the loan.

Do debt-to-income limits apply when using equity for investment?

Yes. From February this year, lenders are restricted from writing more than 20 per cent of new investor loans to borrowers with a total debt-to-income ratio of six times or more. If your combined borrowings reach that level, some lenders may decline or reduce the loan.

Should I keep the investment borrowing separate from my home loan?

Yes. Keeping the investment borrowing in a separate split ensures the interest remains clearly linked to the investment property and fully deductible. Blending the loans can make it difficult to substantiate the deduction with the ATO.

Can I still claim interest on an investment property purchased this year?

Yes. Interest and other holding costs remain deductible, but for established properties purchased after May last year, losses can only be offset against other residential property income. New builds are exempt from this restriction.

What happens if the investment property sits vacant?

You remain responsible for both mortgage repayments regardless of rental income. Lenders already apply a haircut to expected rent in their serviceability assessment, but a prolonged vacancy or tenant default can strain cash flow if you don't have a buffer.


Ready to get started?

Book a chat with a Mortgage Broker at SAT Home Loan today.