1 July 2026 - 6 min read
For homeowners, it’s always reassuring if your property grows in value over the years. Yet at first glance, this growth provides no immediate benefits – it just feels good. One way to tap into the value of your home is with an equity release, which could free up funds for any number of purposes.
In this article, we cover some of the reasons you might want to access funds, help you calculate how much equity you have in your home, and describe some of the ways to unlock your home equity. We also explore the key considerations when planning to release equity and touch on potential risks.
As with all things financial, it’s important to understand all the pros and cons before moving forwards. At Westpac, we can chat through some of the refinancing options available to you. But it’s also a good idea to seek independent professional advice from a qualified financial advisor.
Key take-outs
- Equity release lets you tap into the increased value of your property
- Your equity is your property's current value minus your outstanding loan amount
- Lenders will generally consider offering loans of up to 80% of your equity
- Refinancing an existing loan can be used for equity release, though other options are available.
Why might I be interested in home equity release?
Equity release could help you get a loan for all sorts of things. One of its key advantages is that you'll generally be paying lower interest rates when compared to personal loans or credit cards, as the borrowing is secured against your property.
Using the equity in your home through 'cash out refinancing' could be used to fund:
- home renovations
- a new kitchen or bathroom
- a solar system
- a pool
- a new car
- education
- major life costs such as medical expenses
- the trip of a lifetime
- debt consolidation.
Many home modifications and home improvements could increase your equity by having a positive impact on the future value of your property.
Alternatively, you may want to access your equity to make an advance payment deposit on an investment property. Building an investment property portfolio could help you accumulate wealth as your property grows in value – and provide you with a rental income stream at the same time.
What is your home equity?
Equity is the difference between the current market value of your property and the amount remaining on your existing mortgage. As you pay off your home loan, the equity you have in your home grows, and if the property's value increases, your equity will go up too.
Let's say your home is currently valued at $1.2 million and you have $550,000 left on your mortgage. That gives you equity of $650,000.
Equity in your property = Value – Loan balance
You can get an estimate of the value of your home using the Westpac property market research tool. Even if you're not ready to consider a release yet, this tool helps you to monitor equity increases over time.
How much equity can I borrow against?
Once you've established your equity, you'll need to work out how much of it you can use if your lender approves – which is known as 'usable equity'. This is the amount of equity in your property you could access and borrow against with refinancing or a new mortgage – and it's typically up to 80% of the equity you've calculated above. So, in general:
Usable Equity = Property value x 80%
You can estimate the maximum equity release available to you using our home equity calculator.
Your lender or mortgage broker may require a formal bank valuation to determine the current value of your home and to calculate the usable equity you have available.
Understanding your usable equity will give you a clearer picture of the funds you might be able to receive through a loan increase or supplementary loan.
How could I refinance my home loan to release equity?
Once you understand the property value and your potential usable equity, you're ready to assess your options. While seeking to access funds through an equity release, you might want to check if the terms of your current home loan – such as the type of loan and interest rate – still suit your needs and goals.
If they don't, you might consider refinancing your home loan, which could involve moving your loan to another lender to potentially get a better rate and features. But before you spend time looking around to compare lenders, it's worth chatting to your current lender's retention team to see if they can help by improving your loan terms.
You might also check whether your home loan has a redraw facility, which allows you to redraw any extra home loan repayments you make; or if you can link an offset account to your home loan. These features could help you reduce the principal on your home loan faster, which may have positive effects on your equity over time.