How to Use the Equity in Your Home to Buy an Investment Property in Western Sydney
Having enough equity and being able to borrow are two entirely separate tests. Most people only sit the first one, and since February 2026 the second one has a hard limit on it.
The short answer
By releasing usable equity from your home, which lenders commonly treat as 80 per cent of the assessed value minus what you still owe, and using it as the deposit and costs on the investment purchase. That answers the first test. The second test is whether you can service the whole position afterwards, and it is the one that fails more often. Since February 2026 APRA has capped new lending at a debt-to-income ratio of six or more at 20 per cent of an authorised deposit-taking institution’s new lending, applied to owner-occupier and investor portfolios separately, which is directly relevant because an equity funded investment purchase is the transaction that raises debt-to-income most. Before any of that, decide how the two properties will be secured. That choice is made once and is the hardest thing in the transaction to reverse.
The two tests, and the one everybody skips
The conversation almost always starts the same way. Someone has watched their home’s value move, worked out the difference between that and their loan balance, and arrived at a number. The question that follows is what they can buy with it.
That question has two answers and they are not related to each other.
The equity test asks whether there is enough security to support the borrowing. The value of your home and what you owe on it answer that one.
The capacity test asks whether you can service the whole debt position afterwards. Your income, your existing commitments and how a lender assesses both answer that one.
These fail independently. Having ample equity and no capacity is entirely ordinary, and that combination has become more common rather than less. Working out the first number and treating it as the answer is the single most frequent mistake in equity funded purchases, and it usually surfaces after an offer has been made.
Equity tells you what can be secured. It tells you nothing at all about what can be borrowed.
Equity, usable equity, and the gap between them
Equity is what your home is worth minus what you owe. Usable equity is a different and smaller number, because lenders will not lend against the whole of it.
The common convention is 80 per cent of the assessed value. Usable equity is therefore, broadly, 80 per cent of value minus your current loan balance. Here is what that does to a set of illustrative round numbers.
| Component | Amount |
|---|---|
| Assessed value of your home | $900,000 |
| 80 per cent of that value | $720,000 |
| Less current loan balance | $400,000 |
| Usable equity | $320,000 |
| Equity on the value minus debt calculation | $500,000 |
So the number people arrive with is $500,000 and the number a lender works from is $320,000. Neither is wrong. They answer different questions.
Three things about that 80 per cent. It is a lender convention, not a legal rule, and it varies between lenders and situations. Borrowing above it is often possible and commonly brings lenders mortgage insurance into the transaction, which is a real cost and is not transferable between loans. And the assessed value is the lender’s valuation, obtained by the lender from a valuer it appoints. It is not your estimate, not an online estimate, and not what the house across the road sold for. No broker can influence, guarantee or predict a valuation outcome.
What you are actually doing when you release equity
Worth being direct about, because the language obscures it. Accessing your equity and unlocking the value in your home both describe an act of borrowing. You are taking on new debt, secured against the property you live in, repayable on a schedule that does not care whether the investment property is tenanted, whether the rent covers anything, or whether the purchase turns out well.
None of that makes it a bad idea. This is a well established way to fund a purchase and there is nothing exotic about it. But buying with no deposit is a description that hides the transaction rather than explaining it, so name what is happening: your home is now security for two things instead of one.
You are not skipping the deposit. You are borrowing it, against the place you live, on terms that do not depend on the investment working.
Where the release sits alongside a refinance of the existing loan, our cash-out refinance page covers how that transaction is structured.
The structural decision that outlasts everything else
If you take one thing from this page, take this section. Every other variable in the transaction can be revisited. This one is made once, at the start, usually without discussion, and unwinding it later is its own transaction.
| Consideration | Cross-collateralised | Separately secured |
|---|---|---|
| What secures what | One lender holds both properties as security for the borrowing across both | Each loan is secured against its own property, often with a separate equity release split against the home |
| Selling one property | Requires the lender’s consent and a reassessment of the remaining position | Ordinarily a discharge of that property’s loan |
| Refinancing one property | Usually means untangling the arrangement first | Can generally be done on its own |
| If one property falls in value | Can affect the position across both | Contained to that property, subject to your overall position |
| Where it can be the right answer | Where a transaction will not fund any other way, or where the numbers only work as a combined position | Where you may want to sell, refinance or restructure one of them independently |
Cross-collateralisation is common and it is not improper. It is sometimes the only structure that gets a deal done. The point is not that it is bad. The point is that it is a choice with consequences that appear years later, and it is frequently made by default because nobody raised it.
The question to ask, in these words. How will each property be secured, and what would I have to do to sell or refinance one of them on its own? Ask it before documents are issued. A broker or lender who has thought about structure will answer immediately. The answer is also the thing to check on the documents themselves rather than to take on trust, because this is a detail that gets lost between a conversation and a settlement. Our guide to what happens when you end up in the wrong loan covers how these things go unnoticed.
Related and often overlooked: an equity release is commonly kept as its own split or loan account rather than merged into your existing home loan, and the reason is in the tax section below.
The constraint that changed in February 2026
This is the part of the transaction that has changed, and most material written about equity funded purchases predates it.
APRA has activated debt-to-income limits as a macroprudential policy tool. Effective from February 2026, the limit allows up to 20 per cent of an authorised deposit-taking institution’s new mortgage lending to be at a debt-to-income ratio of six or more, and it applies to owner-occupier and investor portfolios separately. Bridging loans for owner-occupiers, and loans for the purchase or construction of new dwellings, are exempt.
Note what that is and is not. Lending above six times income has not been prohibited. It has been rationed. Each lender has a finite allowance and manages it as a portfolio, so the same application can be treated differently by different lenders and at different points in a quarter.
Why this lands hardest on exactly this transaction
Because an equity funded investment purchase raises debt-to-income more than almost anything else you can do. You add the equity release and the investment loan to the debt you already carry, and your income does not move. Continuing the illustrative figures from earlier:
| Component | Amount |
|---|---|
| Existing home loan | $400,000 |
| Investment property price | $700,000 |
| Deposit at 20 per cent, drawn from equity | $140,000 |
| Purchase costs at an assumed 5 per cent, drawn from equity | $35,000 |
| Investment loan | $560,000 |
| Total debt after settlement | $1,135,000 |
| Debt-to-income on a $150,000 household income | 7.6 |
| Income required to sit at six times | About $189,000 |
Those last two rows are the argument of this article in one place. The equity question was settled at $900,000 of home value. The debt-to-income question is settled at about $189,000 of income. Two different constraints, and on these figures the equity is comfortably sufficient while the income is not.
Two important caveats on that calculation. Lenders define debt-to-income differently, including how they treat undrawn limits, other facilities, and which income counts, so a figure you calculate yourself is indicative rather than authoritative. And being above six does not mean declined. It means you are competing for a rationed part of a lender’s book, which is a reason to establish where you sit early rather than after an offer is accepted. Our guide to how much you can realistically borrow covers the DTI limit and its carve-outs in more detail.
Want to know which test you actually fail?
Bring your home’s approximate value, your current loan balance, your income and your existing limits. We will tell you where your capacity sits before you make an offer, and we will tell you plainly if the answer is not yet. No application, no credit enquiry, no fee at any point.
What a second property does to your assessment
A second property is not added to your position. It changes the whole of it, and in three ways at once.
The buffer applies to everything. Serviceability is assessed at a rate above the actual rate. APRA confirmed on 28 May 2026 that the buffer would remain at 3 percentage points. That applies across your whole debt position, so the existing home loan you have been paying comfortably for years is reassessed at the higher rate too.
Rental income is discounted. Lenders generally count part of expected rent rather than all of it, and the expected rent usually comes from a rental assessment obtained by the lender rather than from the selling agent’s figure. Against that sit management fees, rates, insurance, maintenance and vacancy. A property that pays for itself on a spreadsheet frequently does not on an assessment, and the gap is the assessment testing conditions the spreadsheet assumed away.
Every existing limit counts. Credit cards, overdrafts and lines of credit reduce capacity by their limit rather than their balance, including the ones you never use. Closing an unused limit takes days and costs nothing.
The self-employed version of this has additional complications, which we cover in why banks reject self-employed borrowers and in how much a self-employed person can borrow.
Why the deduction follows the money, not the security
This belongs to your accountant, and we are not going to pretend otherwise. There is one principle to understand before you structure anything, because getting it wrong is a structural problem rather than a paperwork one.
Deductibility of interest follows the purpose to which borrowed funds are put, not the property that happens to secure the loan. The ATO’s guidance on rental property interest expenses deals with apportioning interest where a loan is used partly for a rental property and partly for private purposes, sets out that repayments must then be apportioned across both portions for the length of the loan, and states that funds used to refinance a drawdown take on the same character as the drawdown.
Why that has a structural consequence. If an equity release is merged into your existing home loan and the account is later used for anything private, you have created a mixed purpose loan with an apportionment that must be tracked for as long as the loan exists. Keeping the release as its own split or loan account, used for one purpose only, avoids that. This is the most common reason a broker will suggest a separate split, and you should confirm the approach with your accountant before settlement rather than discover the issue at the first tax return.
Intellect Finance holds an Australian Credit Licence, not a tax agent registration, and cannot advise on your tax position, on negative gearing, on depreciation, or on whether any of this applies to you.
The local part
A note on what this page does not do. It publishes no Western Sydney medians, growth rates, rental yields or vacancy figures. That is deliberate. When we have tried to verify local price data for these guides, published figures have differed so widely between sources that we could not responsibly put a number on the page, and a wrong median on a page about borrowing decisions is worse than no median. If you want local figures, get them from a named data provider with a stated period and a stated geography definition, and check whether it is measuring the suburb, the postcode or the local government area.
Three other things vary locally, and the price data is not among them.
Lender security policy on property types. Restrictions can apply to high density apartments, very small apartments, serviced apartments, acreage and mixed use property, and they differ between lenders and by location. In parts of Western Sydney where a lot of recent stock is apartments or house and land, this affects which lenders will consider a given security at all. Our page on whether you need a local broker is honest about how much of this is local and how much is not.
New estates, and the DTI exemption. This is the most practically useful local point on the page. APRA’s debt-to-income limit exempts loans for the purchase or construction of new dwellings. Western Sydney has a large supply of new estates and house and land. The exemption is more likely to be relevant here than in established suburbs. Whether it applies to a particular purchase depends on the specifics and on the lender’s treatment, so it is a question to ask rather than an assumption to make. Our construction loan and land loan pages cover how those transactions work.
Valuation behaviour on new estates. Where a lot of similar stock settles at once, valuations can come in differently from contract prices. That is not a prediction about any estate or any market, and no broker can influence or foresee a valuation. It is a reason to understand what happens in your contract if a valuation does not support the price, which is a question for your solicitor or conveyancer.
The order to do this in
Most of the difficulty in these transactions comes from doing them in the wrong order.
- Establish capacity first, not equity. Equity is the easy number and the one that does not bind. Find out what you can service across the whole position, including the debt-to-income question, before you look at properties.
- Clear the cheap obstacles. Close unused credit limits. Deal with any facility you are not using. This takes days and is free.
- Decide the structure deliberately. Cross-collateralised or separately secured, and equity release as its own split or not. Have this conversation before an application, not at document signing.
- Confirm the tax approach with your accountant. Specifically the purpose of the release and whether the proposed structure keeps it clean. Before settlement.
- Get the equity release assessed and in place, understanding that the lender’s valuation governs and that your estimate does not.
- Then look at property, knowing your actual number rather than your theoretical one, and knowing which lenders have appetite for the type of security you are considering.
- Read the loan documents on the security question. Confirm that what was agreed about how each property is secured is what the documents actually say.
Steps one to four cost nothing and take a fortnight. They are also the four that get skipped.
How Intellect Finance can help
The useful part of our role here is not finding a rate. Our job is establishing where your capacity actually sits before you commit to anything, knowing which lenders have appetite for the security type you are considering, and structuring the release so that the position is workable in five years rather than only at settlement. The service detail is on our investment loans page.
We will also tell you when the answer is not yet, which is a common outcome on equity funded purchases and is more useful than an application that fails. On regulated home lending we are bound by Best Interests Duty, which applies to credit assistance provided to consumers under the National Consumer Credit Protection Act. Our Credit Guide, which sets out how we are remunerated, is provided before we give credit assistance. We charge you nothing, on any loan type, with no arrangement fee and no clawback recovery fee. Australian Credit Licence 390611 is held by Intellect Finance Pty Ltd, members of the MFAA and AFCA. Penrith based since 2005, clients Australia-wide.
What we do not do is advise on whether property is a suitable investment for you, on which property to buy, or on your tax position. Intellect Finance holds a credit licence, not an Australian Financial Services Licence, and is not a registered tax agent. Investment suitability belongs to a licensed financial adviser and tax belongs to your accountant.
Read Intellect Finance’s Google reviews
Rather than describing how we handle these transactions, here are Intellect Finance’s Google reviews, live from our Google Business Profile and unedited.
These reviews reflect other clients’ experiences. They are not a promise of any particular outcome for your finance, which will always depend on your circumstances, the security and the lender’s assessment.
Frequently Asked
Equity and investment property questions
The questions that come up between the idea and the offer.
How much equity can I use to buy an investment property?
Less than you have. Lenders commonly work to a convention of 80 per cent of the property’s assessed value, so usable equity is broadly 80 per cent of value minus what you still owe. On an illustrative home assessed at $900,000 with $400,000 still owing, that is $320,000, not the $500,000 of equity the arithmetic of value minus debt suggests.
Two things to hold on to. The 80 per cent figure is a lender convention rather than a legal rule, it varies, and borrowing above it can trigger lenders mortgage insurance. And the assessed value is the lender’s valuation, not your estimate or an online figure, and no broker can influence or predict what a valuer will say.
Can I buy an investment property with no cash deposit?
Using equity instead of savings is common and it is what most people mean by buying without a deposit, but the description hides the transaction, so here it is plainly. You are not avoiding a deposit. You are borrowing the deposit against your home. The money is real debt, secured against the place you live, repayable whether or not the investment performs and whether or not it is tenanted. That can be an entirely reasonable thing to do. It is a different proposition from a deposit funded by savings and should be judged as one.
What is cross-collateralisation and should I avoid it?
Cross-collateralisation means one lender holds both properties as security for the borrowing across both, rather than each loan being secured only against its own property. It is common, it is not improper, and it is sometimes the only structure available for a particular transaction.
What it does is tie the two properties together. Selling one, refinancing one, or releasing one from the arrangement then involves the lender’s consent and a reassessment of the whole position rather than a single transaction. The question to ask is not whether it is good or bad but what it would cost you to unwind. Ask how each property is to be secured before documents are issued, because it is far easier to structure at the start than to change later.
Will the new DTI limits stop me buying an investment property?
They do not stop anyone individually, but they change how much room lenders have. From February 2026 APRA has limited new mortgage lending at a debt-to-income ratio of six or more to up to 20 per cent of an authorised deposit-taking institution’s new lending, applied to owner-occupier and investor portfolios separately. Bridging loans for owner-occupiers and loans for the purchase or construction of new dwellings are exempt.
The practical consequence for an equity funded investment purchase is that this is precisely the transaction that pushes a debt-to-income ratio up, because you add the equity release and the investment loan to the debt you already have while your income stays where it is. Lending above six times income has not been banned, it has been rationed, so find out where you sit before you make an offer. Lenders calculate debt-to-income differently, so treat any figure you calculate yourself as indicative.
Is the interest on an equity release tax deductible?
This is your accountant’s question, and the principle to understand before you ask it is that deductibility follows the use of the borrowed funds rather than the property offered as security. ATO guidance on rental property interest expenses deals with apportioning interest where a loan is used partly for a rental property and partly for private purposes, and states that funds used to refinance a drawdown take on the same character as the drawdown.
The practical consequence is that mixing purposes inside one loan account creates an apportionment problem that has to be maintained for the life of the loan, which is one of the reasons loan structure and tax position are connected. Intellect Finance is not a registered tax agent and cannot advise on any of this.
How do lenders treat rental income when I apply?
Cautiously, and less generously than borrowers expect. Lenders generally apply a discount to expected rental income rather than counting all of it, and expected rent is usually supported by a rental assessment from the valuer rather than by the agent’s estimate. Vacancy, management fees, rates, insurance and maintenance sit against the income.
Then the serviceability assessment is applied at a rate above the actual rate, because APRA’s serviceability buffer of three percentage points applies to the whole position rather than only to the new loan. The result is that a property which appears to pay for itself on a spreadsheet frequently does not on an assessment, and the difference is not the lender being difficult, it is the assessment testing conditions your spreadsheet did not.
Do I have to use the same lender for both properties?
No, and keeping them separate is worth considering rather than defaulting into. Splitting across two lenders keeps the properties structurally independent, which makes selling or refinancing one of them a simpler transaction later. It can also mean two assessments rather than one, two sets of fees, and the possibility that the second lender assesses your position differently from the first. Neither approach is universally right. The point is that it is a decision, it is made once, and it is far easier to make at the beginning than to reverse.
What happens if the investment property falls in value?
The debt does not move. That is the whole answer, and it is the risk that equity funded purchases carry most and discuss least. A loan is a fixed obligation and a property value is not, so a fall in value increases your loan to value ratio, can restrict your ability to refinance or release further equity, and where the properties are cross-collateralised can affect the position on both rather than only on one.
Nobody can tell you what any property will be worth in the future and this page makes no prediction about any market. What can be said is that the structure you choose determines how much a fall in value constrains you, which is another reason to treat structure as the main decision rather than an administrative detail.
The honest bottom line
Work out your capacity before you work out your equity. The equity number is easy, it is larger than the usable figure, and on its own it has never stopped anybody or told anybody anything useful.
Then treat the structure as the main event. How the two properties are secured, and whether the release sits in its own split, are decided once and shape what you can do for years. Everything else in the transaction can be revisited.
And be honest with yourself about what an equity release is. It is new debt against your home, on terms that do not depend on the investment working out. That is a legitimate way to fund a purchase. It is not a way of buying something for nothing, and the language used to sell it frequently implies otherwise.
Joseph Sukkar
Joe founded Intellect Finance in Penrith in 2005 and has more than 25 years in Australian finance. Equity funded investment purchases across Western Sydney are regular weekly work for the firm, including the structural questions that only surface years later. Intellect Finance holds a credit licence rather than a financial services licence, is not a registered tax agent, and charges clients no fee on any loan type. More about the team.
Sources
Australian Prudential Regulation Authority, Activating debt-to-income limits as a macroprudential policy tool, for the limit effective February 2026, its application to owner-occupier and investor portfolios separately, and the exemptions. apra.gov.au
Australian Prudential Regulation Authority, statement of 28 May 2026 maintaining current macroprudential policy settings, for confirmation that the serviceability buffer remains at three percentage points. apra.gov.au
Australian Taxation Office, Rental expenses: interest expenses, for apportionment where borrowed funds are used partly for a rental property and partly for private purposes. ato.gov.au
Important disclosures, general advice warning and licensing
General information only. This article is general information only and does not constitute financial, credit, legal, investment or tax advice. It does not take your objectives, financial situation or needs into account, and it is not a recommendation to release equity, to purchase any property, or to enter into any credit contract. Before acting on any information here you should obtain advice from appropriately qualified professionals.
We do not advise on property as an investment. Intellect Finance holds an Australian Credit Licence, not an Australian Financial Services Licence. Nothing on this page is advice about whether property is a suitable investment for you, about which property to buy, about expected returns, or about property compared with any other asset class. Those questions belong to a licensed financial adviser.
This is not tax advice. Intellect Finance is not a registered tax agent and cannot advise on deductibility, negative gearing, depreciation, capital gains or the tax treatment of any structure. The description of ATO guidance is a general summary of published material on the ATO’s rental property interest expenses page as reviewed on 7 September 2026, is not a ruling and is not advice about your circumstances. Confirm your position with your accountant or registered tax agent.
All figures on this page are illustrative. The worked examples use assumed round numbers chosen so the arithmetic is easy to follow, including an assumed 5 per cent for purchase costs which on a New South Wales purchase would largely be transfer duty. Actual duty depends on the price and your circumstances and should be confirmed with Revenue NSW or your solicitor or conveyancer. The debt-to-income calculation shown is deliberately simplified. Lenders define and calculate debt-to-income differently, including how undrawn limits and different income types are treated, so any figure you calculate yourself is indicative only.
No market data. This page publishes no medians, growth rates, rental yields or vacancy figures for Western Sydney or anywhere else, because we could not verify local figures to a standard we were comfortable publishing. Nothing here predicts the direction of property prices, rents or interest rates.
No rate claims. This page publishes no interest rates, comparison rates or pricing comparisons between lenders, and names no lenders. Any rate should be confirmed in writing against an actual offer.
About the APRA material. The debt-to-income limit and the serviceability buffer are described from APRA’s published material as reviewed on 7 September 2026. APRA’s settings are reviewed periodically and can change. This material describes prudential expectations placed on lenders and creates no entitlement for any borrower. Whether any exemption applies to a particular transaction is a matter for the lender.
Valuations. Valuations are instructed by the lender and carried out by valuers the lender appoints, who work to their own standards. No broker can influence, guarantee or predict a valuation outcome, and a valuation that does not support a contract price is a contractual question for your solicitor or conveyancer.
Approval is never guaranteed. All lending is subject to lender assessment, credit criteria, valuation and lender policy, which vary between lenders and change without notice. Lenders mortgage insurance may apply. No broker can guarantee approval, a particular structure, pricing, an exemption or a timeframe.
Borrowing against your home carries risk. Releasing equity increases the debt secured against the property you live in. Repayment obligations continue regardless of whether an investment property is tenanted or how it performs. If you are experiencing financial difficulty, free and independent financial counselling is available through the National Debt Helpline on 1800 007 007.
Other professionals. Investment suitability to a licensed financial adviser. Tax to your accountant or registered tax agent. Contracts, title and duty to your solicitor or conveyancer. Property condition to a qualified inspector.
About the reviews shown. The reviews displayed on this page are genuine reviews published by clients on Intellect Finance’s Google Business Profile, shown live via a third-party reviews widget. They reflect those individuals’ own experiences and are not a promise of any particular outcome.
What we charge you. Nothing, on any loan type. No arrangement fee for residential, commercial, corporate, asset, SMSF or personal lending, no fee for complex or specialist lending, and no clawback recovery fee if a loan is discharged early. Our remuneration is the commission paid by the lender after settlement, disclosed in our Credit Guide, which is provided before we give credit assistance.
Intellect Finance Pty Ltd holds Australian Credit Licence 390611 and is a member of the MFAA and AFCA. Lending criteria, fees and terms apply. Article checked 7 September 2026.
Next Reads
Related services and guides
Free Capacity Check
Find your real number before you make an offer.
Bring your home’s approximate value, your loan balance, your income and your existing limits. We will work out where your capacity sits, what the structure should look like, and whether the answer is yes, not yet, or not this way. No application and no credit enquiry to find out. Owner-operated, Penrith based since 2005, clients Australia-wide. No fee on any loan type. ACL 390611.
General information only, not financial, investment or tax advice. All figures illustrative. Intellect Finance holds a credit licence, not an AFSL, and is not a registered tax agent. No broker can guarantee approval or a valuation.
Intellect Finance Pty Ltd | Australian Credit Licence 390611 | MFAA Member | AFCA Member