Estimate your property equity, usable equity, available borrowing capacity and loan-to-value ratio using our free Australian Home Equity Calculator.
📖 10 min read · ⏱️ Calculator time: ~30 seconds
| Item | Value |
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Results are estimates only. Actual borrowing capacity depends on your lender's valuation and servicing assessment — confirm with your lender before relying on any figure.
Compare your equity loan rate above against a different refinance rate, including switching costs.
Projected property value, loan balance and equity over your chosen projection period, using a standard amortisation formula on your mortgage rate, remaining term and repayment frequency, combined with property growth and any extra repayments.
This is still an estimate: it assumes your rate and repayments stay constant for the full projection, doesn't account for future rate changes, and uses the mortgage rate/term you enter above rather than your lender's exact schedule.
| Year | Property value | Loan balance | Equity | LVR |
|---|
Home equity is the portion of your property you actually own outright — the difference between what your home is worth and what you still owe on it. As you pay down your mortgage and/or as your property's value rises, your equity grows, and it's this equity that Australian lenders let you borrow against for other purposes.
Home equity = current property value − outstanding mortgage. Most Australian lenders allow you to access equity up to 80% LVR (without LMI). Some lenders allow 90% with LMI.
Total equity and usable equity are different numbers. Total equity is simply value minus balance. Usable equity is the portion a lender will actually let you borrow against — typically calculated as 80% of your property's value, minus your current mortgage balance. Lenders hold back the remaining 20% as a buffer, partly to avoid the need for Lenders Mortgage Insurance on the new borrowing.
"Available equity" and "usable equity" are used interchangeably in the Australian market and refer to the same thing: the amount above your current balance that you could actually draw on, not just the mathematical difference between value and balance. Always plan around your usable equity, not your total equity — the gap between the two can be substantial.
Redraw facility: Access extra repayments you've already made. Usually free and instant.
Equity loan / top-up: Increase your existing loan limit to access equity.
Line of credit: Revolving credit secured against your home equity.
Cash-out refinance: Refinance to a larger loan and receive the difference.
Home equity is the difference between your property's current market value and the amount you still owe on your mortgage. As you pay down your loan and/or as property values increase, your equity grows. Australian lenders allow you to access this equity — essentially borrowing against your home's value — through a home equity loan or line of credit.
Most Australian lenders will allow you to borrow up to 80% of your property's value in total (across your existing mortgage and any equity loan). This 80% LVR limit is the standard threshold for avoiding Lenders Mortgage Insurance on new borrowings.
LVR expresses your mortgage balance as a percentage of your property's value: LVR = (Loan balance ÷ Property value) × 100. It's the key number lenders use to gauge risk — a lower LVR means more equity and generally better access to further borrowing, sharper interest rates, and no LMI. The LVR Gauge in the calculator above shows exactly where you sit: 🟢 under 60% is a strong position, 🟡 60–80% is standard lending territory, and 🔴 above 80% usually means LMI applies to any new borrowing.
| Property Value | Outstanding Mortgage | 80% LVR Limit | Available Equity |
|---|---|---|---|
| $800,000 | $400,000 | $640,000 | $240,000 |
| $900,000 | $500,000 | $720,000 | $220,000 |
| $1,000,000 | $600,000 | $800,000 | $200,000 |
| $600,000 | $500,000 | $480,000 | Nil (over 80%) |
Refinancing and accessing equity are often done together — you replace your existing loan with a new, larger one, receiving the difference as cash or using it to consolidate other borrowing. Use the Refinance Comparison panel in the calculator above to see whether moving to a different rate on the accessed amount would save money, keeping in mind that a refinance also typically brings discharge and establishment costs.
Using equity as a deposit on an investment property is one of the most common strategies in Australia — it lets you enter the investment market without saving a separate cash deposit. The equity portion typically becomes a separate loan split. Interest may be deductible to the extent the borrowed funds are used for an income-producing purpose; deductibility depends on the actual use of the funds, loan tracing and your individual circumstances — confirm with a registered tax agent. Try the Investment Property Deposit scenario in the calculator above for an indicative amount and repayment.
Renovation funding via home equity is typically cheaper than a personal loan, since it's secured against your property at home loan rates rather than unsecured personal loan rates. The best renovations are ones that add value at or above the amount borrowed — kitchens, bathrooms and street appeal typically perform best for resale value, though the primary reason for renovating is usually your own enjoyment of the home.
Rolling higher-interest debts (credit cards, personal loans, car loans) into your home loan via equity access lowers your interest rate significantly, but converts unsecured debt into debt secured against your home, repaid over a much longer term — meaning you could pay more in total interest even at a lower rate if you don't also increase your repayments. This strategy only saves money if paired with discipline: don't run the credit cards back up once they're cleared.
Because equity is value minus balance, your equity moves with the property market even if you never make an extra repayment. A rising market grows your equity "for free," while a falling market shrinks it — and in a significant downturn can push you into negative equity, where you owe more than the property is worth. Use the Property Value Sensitivity panel above to see exactly how a ±5%, ±10% or ±20% move in your property's value would change your equity and usable equity.
| Feature | Home Equity Loan / LOC | Cash-Out Refinance |
|---|---|---|
| Structure | Separate loan on top of existing mortgage | Replace existing mortgage with larger new one |
| Interest rate | May differ from main mortgage rate | Single rate on entire new loan |
| Flexibility | Draw down as needed (LOC) | Receive lump sum at settlement |
| Cost | Separate establishment fee | Full refinancing costs apply |
| Best for | Staged projects (renovations) needing flexible access | Large lump sum need |
Take an $850,000 property with a $450,000 mortgage — $400,000 in total equity, a 52.9% LVR. At 80% LVR, the usable equity is (850,000 × 0.80) − 450,000 = $230,000, well within standard lending limits with no LMI required. If this owner wanted $100,000 to fund an investment property deposit, their new balance would be $550,000, lifting the LVR to 64.7% — still comfortably under 80%. Try your own numbers in the calculator above, and use the Equity Use Scenarios buttons to see indicative repayments for common purposes.
| Term | Meaning |
|---|---|
| Equity | Property value minus outstanding mortgage balance. |
| Usable/available equity | The portion of equity a lender will actually let you borrow against, typically to 80% LVR. |
| LVR | Loan-to-Value Ratio — loan balance as a percentage of property value. |
| Negative equity | When you owe more than the property is worth. |
| Line of credit | A revolving credit facility secured against home equity. |
| Cash-out refinance | Refinancing to a larger loan and receiving the difference in cash. |
| LMI | Lenders Mortgage Insurance — generally required above 80% LVR. |
Home equity is one of the most powerful financial tools available to Australian homeowners — but it's still debt, secured against the roof over your head. Use the calculator above to see exactly how much usable equity you have today, how it might grow (or shrink) with property values and extra repayments, and what a specific use like an investment deposit, renovation or debt consolidation would actually cost you in repayments. Pair it with our Borrowing Power and Mortgage calculators before making a final decision, and always confirm your figures with a lender before proceeding.
How do I calculate my home equity in Australia?
Home equity = current property value minus outstanding mortgage balance. Your usable equity (what lenders will allow you to borrow against) is usually the amount you can borrow to 80% LVR minus your current balance. For a $900,000 property with a $500,000 mortgage: 80% of $900k = $720k, minus $500k outstanding = $220,000 available to borrow.
Can I use my home equity to buy an investment property?
Yes — this is one of the most common uses of home equity in Australia. You access the equity as a deposit for the investment property, then obtain a separate investment loan for the remainder. Interest may be deductible to the extent the borrowed funds are used for an income-producing purpose; deductibility depends on the actual use of the funds, loan tracing and your individual circumstances — confirm with a registered tax agent. This strategy amplifies both potential gains and potential losses.
What is a home equity line of credit (HELOC)?
A home equity line of credit (called a line of credit or equity loan in Australia) gives you approved access to funds up to a maximum amount, which you draw on as needed. Interest is charged only on the amount drawn. It is useful for renovations or staged projects where you need flexible access to funds rather than a lump sum.
Is home equity loan interest tax deductible in Australia?
Interest may be deductible to the extent the borrowed funds are used for an income-producing purpose. Deductibility depends on the actual use of the funds, loan tracing and your individual circumstances — mixed private and income-producing use requires apportionment. If used for personal purposes (holidays, personal renovation of your own home), the interest is generally not deductible. Confirm your specific situation with a registered tax agent and keep detailed records of how equity funds are used.
What is home equity?
Home equity is the portion of your property you own outright — the difference between its current market value and what you still owe on your mortgage. It grows as you pay down the loan and as property values rise.
What is usable equity?
Usable (or available) equity is the amount a lender will actually let you borrow against — typically 80% of your property's value minus your current mortgage balance. It's usually meaningfully lower than your total equity, since lenders hold back a buffer.
How much equity do I need to refinance?
There's no fixed minimum, but having at least 20% equity (80% LVR or lower) avoids Lenders Mortgage Insurance on the new loan and generally gives access to better rates. Refinancing with less equity is often still possible, just potentially with LMI or a smaller lender pool.
Can I borrow against my home equity?
Yes — through a redraw facility, an equity loan/top-up, a line of credit, or a cash-out refinance. Most lenders cap total borrowing (existing mortgage plus new equity access) at 80% of your property's value without LMI, or higher with LMI.
How much equity do banks typically allow you to access?
Most Australian lenders allow borrowing up to 80% of your property's value without LMI, and up to 90-95% with LMI in some cases. Your actual approved amount also depends on your income and ability to service the new, larger repayment.
What is an 80% LVR?
An 80% LVR means your total borrowing equals 80% of your property's value — for example, a $640,000 loan on an $800,000 property. It's the standard threshold most Australian lenders use to determine whether Lenders Mortgage Insurance applies.
How is my property's value determined for equity purposes?
Lenders typically order a formal valuation (sometimes a desktop valuation using data like CoreLogic, sometimes a physical inspection) rather than relying on your own estimate or an online estimate. This calculator uses whatever value you enter, which is best treated as an estimate until confirmed by your lender.
Can investment properties build equity too?
Yes — the same principle applies: investment property equity grows as the loan is paid down and as the property's value rises, and can be accessed in the same ways as equity in your home, subject to the lender's assessment.
Can I use equity to buy another house?
Yes, this is one of the most common strategies in Australia — using usable equity from your current home as some or all of the deposit for a second property, whether an investment or your next home.
How much equity do I need for renovations?
This depends entirely on the scope of the renovation. Use the Home Renovation scenario in the calculator above for an indicative amount and repayment based on your usable equity, then get formal quotes to confirm the actual budget needed.
Can equity help consolidate debt?
Yes — rolling higher-interest debts like credit cards or personal loans into your home loan via equity access can significantly lower the interest rate. The trade-off is converting unsecured debt into debt secured against your home, repaid over a much longer term, so discipline afterward matters.
What is available equity?
Available equity is another term for usable equity — the amount above your current mortgage balance that a lender will actually let you draw on, typically to 80% of your property's value.
Can I release equity without selling my home?
Yes — that's exactly what a home equity loan, line of credit, redraw, or cash-out refinance achieves. You access funds secured against your property's value without needing to sell it.
How often should I recalculate my home equity?
Whenever you're considering a major financial decision (refinancing, investing, renovating), or at least annually, since both your mortgage balance and your property's market value change continuously.
How accurate is this home equity calculator?
It uses standard LVR and equity formulas and is a solid planning estimate. The property value you enter is the biggest variable — for an exact figure, get a formal bank valuation, since online estimates and this calculator's inputs are both indicative only.
Can falling property prices reduce my equity?
Yes, directly — since equity is value minus balance, any fall in your property's value reduces your equity by the same amount, even if your mortgage balance hasn't changed. Use the Property Value Sensitivity panel above to see the effect of a ±5%, ±10% or ±20% move.
Does making extra mortgage repayments increase my equity?
Yes — every extra dollar paid off your mortgage balance is a dollar added directly to your equity, on top of any change in property value. Enter an amount in the "Extra mortgage repayment" field above to see the compounding effect in the Equity Growth Timeline.
Can first home buyers use equity?
Not initially — equity only builds once you own a property and have either paid down some of the loan or seen the value rise. First home buyers typically need a cash deposit; equity becomes a tool for later purchases once you've built a position in your first property.
What is negative equity?
Negative equity occurs when your mortgage balance exceeds your property's current market value — you'd owe more than the property is worth if you sold it. It's most commonly caused by a significant property market downturn combined with a high LVR at purchase, and can make refinancing or selling difficult.
Does accessing equity affect my ability to sell later?
Not directly, but it increases the mortgage balance that needs to be repaid or transferred at sale, and reduces the net proceeds you'll walk away with. Factor this into any equity-access decision if you might sell within the next few years.
Is a home equity loan the same as a second mortgage?
They're closely related concepts — both involve borrowing additional funds secured against a property you already have a mortgage on. In Australia this is more commonly structured as a loan increase/top-up or split with your existing lender rather than a separate "second mortgage" in the way some other countries structure it.
Can I access equity if I'm self-employed?
Yes, though self-employed borrowers typically need to provide additional income evidence (tax returns, notices of assessment, or BAS statements) to demonstrate they can service the increased repayment, similar to applying for a new home loan.
Does my lender need to approve equity access?
Yes — accessing equity beyond a simple redraw (which is usually pre-approved as part of your loan) generally requires a fresh serviceability and valuation assessment, similar to applying for additional finance.