Your home does two jobs. It shelters you. And it builds wealth — quietly, in the background, while you sleep. That stored wealth has a name. It's called equity.
In 2025 alone, the typical Australian home gained around $60,000 in value (Cotality Home Value Index, January 2026). For most homeowners, that's the biggest pay rise of the year — and they didn't have to ask.
The simple formula
Home equity is plain maths. Take what your home is worth today. Subtract what you still owe on your loan. The number left over is yours.
Equity = Property value − Outstanding loan balance
That's the whole formula. No tricks. The bank's slice shrinks every month you make a repayment, and yours grows in the same step.
Worked example: meet Anna
Anna bought her Brisbane home for $750,000 three years ago. Today, the market values it at $900,000. She still owes $540,000 on her loan.
Anna's equity:
- $900,000 (property value)
- − $540,000 (loan balance)
- = $360,000 in equity
That $360,000 is the slice Anna owns. It's her deposit, plus every principal repayment she's made, plus every dollar the property has gained since she bought it.
Equity vs usable equity — the 80% rule
Here's where it gets interesting. Your equity is your equity — but lenders won't let you borrow against all of it.
Most lenders cap borrowing at 80% of your property's value. Above that, they charge Lenders Mortgage Insurance (LMI) →. That 80% cap is what defines your usable equity — the portion you can actually access without paying LMI.
The formula:
Usable equity = (Property value × 80%) − Outstanding loan balance
Back to Anna:
- $900,000 × 80% = $720,000
- − $540,000 (her current loan) = $180,000 usable equity
Anna has $360,000 in total equity. Only $180,000 is "usable" — the slice she can borrow against without an LMI bill. The 80% cap protects her from sliding into LMI territory and the lender from over-exposure.
Based on typical scenarios. Individual outcomes vary.
Want a deeper look at the 80% threshold and how it shapes lending? Read LVR explained →.
Four ways your equity grows
Equity isn't static. It compounds quietly through four levers.
1. You pay down the loan. Every repayment shifts ownership your way. The principal portion of each payment is, literally, equity in motion. Early in a 30-year loan, most of your repayment goes to interest. By year 15, the split flips.
2. Property values rise. The market does the work. National values rose 9.9% in 2025 (Cotality HVI). On a $900,000 home, that's roughly $89,000 in passive equity — without you lifting a finger.
3. You renovate strategically. A $40,000 kitchen reno that adds $80,000 to the property's value just bought you $40,000 in net equity. (The trick: not every reno pays back. Kitchens, bathrooms, and adding a bedroom usually do. A statement pool usually doesn't.)
4. You make extra repayments. Money in your offset effectively shrinks the balance you're charged interest on. Smaller balance, more equity, faster.
What can you do with equity?
Equity isn't just a number on a statement. It's a tool. The most common ways homeowners put it to work:
- Refinance to a better rate →. More equity means lower LVR, which opens the door to lender pricing tiers most can't reach.
- Buy an investment property. Use your usable equity as the deposit for the next purchase. A common move for doctors and dentists building a portfolio. (How to use equity to buy an investment property →)
- Renovate or extend. Borrow against your equity at home loan rates rather than taking a higher-rate personal loan.
- Consolidate higher-rate debt. Move credit card or car loan debt onto your home loan rate. Stretching short-term debt over a long term needs careful structuring.
- Help the kids in. Some homeowners use equity to act as a guarantor or fund a deposit gift for a first home buyer.
The full menu — and the trade-offs — sits in the complete guide to home equity in Australia →. For the how of accessing it, see the three main paths to release your equity →.
Quick FAQs
Is home equity the same as cash? No. It's wealth tied up in your property. To turn it into spendable money, you either sell, borrow against it, or refinance to release some of it.
Does my deposit count as equity? Yes. The day your loan settles, your equity equals your deposit minus stamp duty and purchase costs. It grows from there with every repayment and every market uptick.
Do I pay tax on home equity? Not while you live in the property as your principal place of residence. Capital Gains Tax may apply when you sell, but the main residence exemption usually keeps a primary home CGT-free. Investment properties play by different rules.
Can equity go backwards? Yes. If property values fall faster than you repay the loan, your equity shrinks. In a deep correction it can theoretically go negative — owing more than the home is worth. Rare in Australia, but not impossible.
What to do next
Knowing your equity is step one. Knowing what to do with it is step two.
If you've owned for a few years, your usable equity is probably bigger than you think. And the lender you signed with three years ago might not be the lender that suits you today.
See where you stand. Start the Wity questionnaire → — free, no credit check, two minutes. We'll match you with the best of 45+ lenders. Your Wity broker walks you through your equity position and what it could fund.