If you already own a home, you may be closer to buying an investment property than you think.
As your property increases in value and you pay down your mortgage, you build equity. Depending on your financial circumstances and lender requirements, part of this equity may potentially be accessed to help fund the deposit and purchasing costs of an investment property.
For many Australian homeowners, this can provide an alternative to spending years saving an entirely new cash deposit.
However, having equity doesn't automatically mean you can—or should—borrow against it.
You still need sufficient borrowing capacity, manageable repayments and a property investment strategy that fits your long-term financial goals.
Here's how using home equity to purchase an investment property can work.
Home equity is essentially the difference between the current market value of your property and the amount you still owe on your home loan.
The basic calculation is:
Home Equity = Current Property Value − Outstanding Home Loan
For example, imagine your home is currently worth $800,000 and you have $450,000 remaining on your mortgage.
Your total equity would be:
$800,000 − $450,000 = $350,000
However, this doesn't necessarily mean you can access the entire $350,000.
That's where usable equity becomes important.
Lenders will generally only allow borrowers to access equity up to an acceptable loan-to-value ratio (LVR), subject to their lending criteria and your financial circumstances.
As a simple example, if a lender allows borrowing up to 80% of the property's value, the calculation might look like this:
Property value: $800,000
80% of property value: $640,000
Existing mortgage: $450,000
Potential usable equity:
$640,000 − $450,000 = $190,000
In this simplified scenario, the homeowner may potentially have access to around $190,000 in usable equity.
This is only an example. The actual amount available will depend on the lender's valuation, your borrowing capacity, loan structure and other eligibility requirements.
One of the biggest challenges when purchasing an investment property is accumulating the upfront funds.
Depending on the purchase, investors may need money for:
Instead of funding all these costs through cash savings, eligible homeowners may be able to access equity from their existing property.
This doesn't mean you're receiving free money from your home.
You're borrowing additional money against the equity you've built.
That distinction is important because the additional borrowing will need to be repaid.
Consider a homeowner whose property is valued at $900,000.
They currently owe $500,000.
Using an 80% LVR as an illustrative example:
80% of $900,000 = $720,000
Subtract the existing mortgage:
$720,000 − $500,000 = $220,000 potential usable equity
Now imagine they want to purchase an investment property for $500,000.
A 20% deposit would be:
$100,000
The investor may potentially be able to use some of their accessible equity to help fund that deposit and potentially some purchasing costs.
The remaining purchase price could then be funded through a separate investment loan, subject to lender approval.
Again, the exact structure will depend on the borrower's financial position and lender requirements.
Before you can determine how much equity you have, you need an indication of your property's current value.
Don't assume the value is the same as what you originally paid.
Property values can change significantly over time.
Online estimates and comparable sales can provide a starting point, but lenders will generally rely on an acceptable property valuation when determining available equity.
If your property has increased in value since you purchased it, you may have accumulated more equity even if you haven't dramatically reduced your mortgage.
Next, determine exactly how much you owe on your home loan.
Your lender's online banking platform or latest mortgage statement should show your current balance.
You can then estimate your total equity:
Current property value − current mortgage balance = total equity.
Remember, total equity and usable equity are different.
Once you have an estimated property value and loan balance, you can calculate an indicative amount of usable equity.
However, avoid assuming the maximum theoretical amount is automatically available.
Your lender or mortgage broker will also need to consider your:
Equity is only one side of the equation.
This is one of the most important parts of the process.
A homeowner might have hundreds of thousands of dollars in equity but still be unable to borrow enough for another property.
Why?
Because lenders also assess serviceability.
They need to determine whether you can afford the repayments associated with your existing mortgage plus the additional borrowing.
Borrowing capacity can be affected by:
Before searching seriously for an investment property, understanding both your usable equity and borrowing capacity can help establish a more realistic purchasing budget.
Knowing that you can borrow a certain amount doesn't mean you should automatically spend the maximum.
Consider how the investment will affect your overall household finances.
Your budget should account for:
Upfront costs
Ongoing costs
You should also maintain an appropriate financial buffer for unexpected costs.
Just because you have significant usable equity doesn't mean you need to access all of it.
Borrowing against your home increases the debt secured against your property.
Consider how much you genuinely need for the investment purchase while leaving enough flexibility in your finances.
Your decision should consider:
The objective isn't to extract as much equity as possible.
It's to use debt strategically and sustainably.
Loan structure can become increasingly important when your home is helping fund an investment purchase.
Depending on your circumstances, it may be preferable to keep the borrowing used for the investment clearly separated from your personal home loan.
For example, rather than simply increasing one large mortgage and mixing personal and investment borrowing together, separate loan splits may make it easier to identify which debt relates to which purpose.
This can also be important from an accounting and tax-record perspective.
Because individual circumstances differ, speak with your mortgage broker and qualified tax adviser before restructuring debt.
Cross-collateralisation occurs when a lender uses more than one property as security for your loans.
For example, both your home and investment property might be used as security within the same lending arrangement.
This can sometimes simplify financing, but it may also reduce flexibility.
Potential considerations include:
Cross-collateralisation isn't automatically wrong, but investors should understand the implications before agreeing to a structure.
Before making offers, it can be helpful to understand:
Getting your finance position organised first can prevent you from wasting time looking at properties outside your realistic budget.
It can also help you move more confidently when the right investment opportunity appears.
Accessing equity is only useful if the property you purchase supports your broader strategy.
Don't let the availability of finance become the reason you buy.
Research factors such as:
Increasing population can contribute to long-term housing demand.
Strong and diverse employment opportunities can support both owner-occupier and tenant demand.
Transport upgrades, hospitals, schools and other major infrastructure can improve an area's long-term appeal.
Look at vacancy conditions, comparable rents and the type of properties tenants are seeking.
Large amounts of future housing supply can affect rental and price growth.
Markets offering relative affordability may attract buyers and tenants who have been priced out of more expensive areas.
The goal is to purchase an asset supported by strong fundamentals rather than simply buying because you have equity available.
Before purchasing, understand how much income the property may generate.
Gross rental yield can be calculated as:
Annual Rental Income ÷ Property Purchase Price × 100
For example, a $500,000 property renting for $500 per week would generate approximately $26,000 per year.
Its gross rental yield would be:
$26,000 ÷ $500,000 × 100 = 5.2%
However, gross yield doesn't account for expenses.
Your actual cash flow will also be affected by:
Understanding these numbers before purchasing can help you determine whether the investment is financially sustainable.
This is one of the most important points for homeowners to understand.
Using equity isn't the same as withdrawing savings from a bank account.
You're taking on additional debt.
For example, if you increase the borrowing secured against your home by $100,000 to help purchase an investment property, that $100,000 will generally attract interest and require repayment according to the loan terms.
Your overall debt position has increased.
That's why equity should be treated as a financial tool rather than free capital.
Property prices don't always increase.
If values decline after you've accessed equity, the percentage of your property's value represented by debt can increase.
For example, imagine your home is worth $800,000 and your total secured borrowing increases to $640,000.
That's an 80% LVR.
If the property's value later falls to $700,000 while the loan remains around $640,000, the LVR would rise significantly.
This could potentially reduce your future refinancing flexibility or ability to access additional equity.
Investors should therefore avoid building a strategy that depends entirely on property prices continually increasing.
Higher interest rates can increase the cost of servicing both your home loan and investment debt.
Before accessing equity, stress-test your finances.
Ask yourself:
If a relatively small change would make your finances unmanageable, you may be taking on too much debt.
Using equity for your deposit doesn't mean you should invest every dollar of your cash savings elsewhere.
A financial buffer can help cover:
The appropriate buffer will vary according to your circumstances and portfolio.
The key is ensuring you aren't financially stretched immediately after settlement.
Potentially, but equity alone won't determine how many properties you can purchase.
As your portfolio grows, borrowing capacity often becomes increasingly important.
Every additional property adds:
Your lender will assess your complete financial position when considering additional borrowing.
This means building a property portfolio usually involves managing both:
Equity creation + borrowing capacity.
There isn't one answer that suits every homeowner.
Some people may prefer to reduce their non-investment home debt before taking on additional borrowing.
Others may decide to invest earlier if their financial position and strategy support it.
Factors to consider include:
Professional financial, lending and tax advice can help you assess the trade-offs based on your circumstances.
Using home equity may provide several potential advantages.
These can include:
However, these benefits need to be weighed against the additional debt and financial risk involved.
Property investment always carries risk, and borrowing against your home deserves careful consideration.
Potential risks include:
Understanding these risks before borrowing is essential.
Having access to equity doesn't mean you need to use all of it.
Leave room for financial flexibility.
Equity may fund your deposit, but you still need to qualify for the additional loan.
Don't purchase a property simply because the bank says you can borrow.
The investment should fit a broader plan.
A property can grow in value but still become difficult to hold if its ongoing costs place too much pressure on your finances.
Poor loan structuring can make financial management more complicated. Seek professional advice before drawing down equity.
Property markets move through cycles. Build your strategy so you can manage periods of slower growth or declining values.
For long-term investors, equity can potentially become part of a repeatable wealth-building strategy.
A simplified cycle might look like:
Purchase property → hold over time → property potentially grows → loan reduces → equity increases → assess usable equity → review borrowing capacity → consider next investment.
However, each stage needs to be assessed carefully.
The objective shouldn't be to accumulate properties as quickly as possible.
Instead, focus on building a financially sustainable portfolio where each property serves a clear purpose.
Using your home to help fund an investment property involves lending, property, taxation and personal financial considerations.
Depending on your circumstances, consider speaking with:
Professional advice can help you understand both the opportunities and potential consequences before committing.
At DDP, we understand that buying your next investment property isn't simply about finding a house within your budget.
It's about understanding how the property fits into your broader investment strategy.
If you've built equity in your existing home, it may potentially provide a pathway towards purchasing another property—but the numbers, finance and investment fundamentals still need to make sense.
From identifying suitable investment markets and sourcing properties to helping you understand how each purchase could fit into a longer-term portfolio strategy, having the right team around you can make the process clearer.
Whether you're considering your first investment property or your next portfolio acquisition, the goal is to invest strategically rather than simply borrow as much as possible.
Using equity in your existing home can be a powerful way to help fund an investment property.
Instead of waiting until you've saved another full deposit, you may potentially be able to leverage some of the wealth you've already built in your home.
But remember:
Equity isn't free money. It's additional borrowing.
Before proceeding, understand your usable equity, confirm your borrowing capacity, calculate the investment's cash flow and make sure you have an appropriate financial buffer.
Most importantly, make sure the property itself is worth buying.
A strong investment strategy combines appropriate finance with the right property, in the right market, purchased for the right reasons.
Thinking about using your home equity to purchase an investment property? Speak with DDP about building a property investment strategy aligned with your financial goals and long-term portfolio plans.
Potentially, yes. Subject to lender approval, borrowing capacity and your property's valuation, accessible equity may be used to help fund the deposit and purchasing costs of an investment property.
The amount required depends on the investment property's purchase price, deposit requirements, purchasing costs, your existing mortgage and the lender's policies.
A common illustrative calculation is to take a percentage of your property's current value—such as 80%—and subtract your existing mortgage balance. The actual amount available depends on lender requirements and your financial circumstances.
Not necessarily for the entire deposit, but maintaining cash savings can still be important for purchasing expenses, emergencies, vacancies and unexpected property costs.
It can increase financial risk because you're taking on additional debt secured against property. Investors should consider interest-rate changes, property price movements, vacancies, income stability and their ability to maintain repayments.
Potentially. The appropriate approach depends on your existing loan, lender and circumstances. A mortgage broker can assess whether a loan increase, separate loan split, refinance or another structure may be suitable.
