Most people buy their second property with equity they didn't know they could use.
Whether it's an investment or a holiday home, you rarely need to save a fresh deposit from scratch. The equity already sitting in your current home can fund the deposit and costs on property two — if it's structured well. Here's exactly how "usable equity" is worked out, how the two loans can be kept apart, and what lenders check before they'll approve both.
How much of your home's value you can actually put to work.
Your equity isn't the same as your usable equity. Lenders start from what your home is worth, draw a line at around 80% of that value, then take off what you still owe. Whatever's left is what could go towards property two. Here's that flow, on an illustrative $900,000 home.
what it's worth today
the usual ceiling before LMI
what you still owe
what may be released
Used as the deposit plus purchase costs (stamp duty, legals, LMI if any), that equity could support a second purchase of roughly $1.2M at an 80% loan — illustrative only, and lender-specific.
- Deposit on property two (commonly ~20% to stay under 80% LVR)
- Stamp duty and transfer costs (no first-home concessions apply)
- Legal, lender and, if the deposit is under 20%, LMI costs
- A buffer for repairs, vacancy or settlement timing
Figures are illustrative and typical only, not a quote or an offer of credit. Usable equity depends on the lender's valuation of your home, the maximum LVR they'll allow, your existing balance, your income and the product — and it is confirmed only in writing after assessment. The 80% line is a common threshold that avoids Lenders Mortgage Insurance; some lenders release equity above it with LMI and different pricing. Borrowing against your home increases your total debt and puts your home at risk if you can't repay.
What "usable equity" really depends on.
The lender's valuation — not your guess
Everything starts with what the lender's valuer says your home is worth, which can differ from a real-estate appraisal. A higher valuation lifts the 80% line and the equity you can release; a conservative one lowers it.
The 80% line and the LMI trade-off
Most lenders release equity up to 80% of the value with no LMI. You can often go higher — to around 90% for investment, or up to 95% for an owner-occupier upgrade — but LMI and pricing change once you cross 80%.
Whether you can service both loans
Releasing equity is only half the test. The lender must be satisfied you can repay both loans, assessed with a buffer around 3% above the actual rate — so serviceability, not just equity, sets your real ceiling.
Australians are sitting on a lot of home equity.
Across the country, mortgages are small relative to what homes are worth — which is exactly why equity-funded second purchases are so common. The market has cooled from its peak, so valuations matter more than ever.
Sources: Cotality (CoreLogic) Home Value Index and total-value estimates; RBA. National median dwelling value was about $937,722 as at 1 July 2026, with values easing 0.4% over June. The RBA cash rate target was 4.35% as at July 2026. Figures are market context, not a forecast of your home's value.
Cross-collateralised, or kept separate?
When equity funds property two, there are two common ways to structure it. The difference matters most later — when you want to sell one, refinance, or release equity again.
Cross-collateralisation
The lender holds security over both properties under the one arrangement. It can be simpler to set up, but the lender has more control over both.
- ▸ Can be quicker with a single lender and one application
- ▸ Selling or refinancing one property can involve the other
- ▸ Harder to isolate the equity or value of each property
- ▸ Most investors and brokers avoid it unless there's a clear reason
Standalone security (80/20 split)
You release equity from your current home as its own loan, then use that as the deposit for a separate loan on property two — often with a different lender.
- ▸ Each property is secured on its own — cleaner to unwind
- ▸ Each loan can stay at or under 80% LVR, so no LMI is triggered
- ▸ Easier to sell, refinance or switch one loan later
- ▸ Clearer view of each property's equity position over time
Which structure suits you depends on your goals, the lenders involved and your circumstances — there's no one right answer, and it's confirmed as part of your credit assessment. This is general information, not personal advice.
Equity is powerful. It's also your home on the line.
Using equity means your existing home helps secure the new debt. If values fall or you can't keep up repayments on both loans, the home you already own is exposed — not just the new purchase. That's the trade-off behind every equity strategy, and it's why servicing matters as much as the equity number.
Lenders test this deliberately: both loans are assessed with a buffer of around 3 percentage points above the actual rate, and for investment loans usually only about 80% of expected rent is counted towards your income. From February 2026, new loans with a debt-to-income ratio above six are also limited to a small share of each lender's new lending.
Consider your ability to service both loans if rates rise, rent stops or circumstances change, and seek independent tax and financial advice for your situation. Buffer, rental-shading and DTI treatment vary by lender and are confirmed at assessment.
What you'll actually pay on property two.
Indicative rates, not a hook
In mid-2026, indicative average variable rates sat around 6% for owner-occupiers and a little higher for investment loans — but the rate you're offered depends on the lender, your LVR, the loan amount, the product and your circumstances. Investment and interest-only loans typically price higher than owner-occupier principal-and-interest.
Ranges are indicative only, as at July 2026, and are not an offer, a quote or a guarantee of a particular rate. Variable rates move with the RBA cash rate. A comparison rate includes some fees and charges and will differ from the headline rate; comparison rates are based on a $150,000 loan over 25 years and may not reflect your loan. We compare across our panel of 50 lenders to match the structure to your goals.
Financing a second property, answered straight.
How much equity can I use from my current home?
A common approach is to take 80% of your home's value and subtract what you still owe — the rest is your usable equity. On an illustrative $900,000 home with a $400,000 loan, that's about ($720,000 − $400,000) = $320,000. Some lenders release equity above 80% with Lenders Mortgage Insurance and different pricing. The real figure depends on the lender's valuation and your ability to service both loans, and is confirmed in writing.
Do I need a cash deposit to buy a second property?
Not always. Equity released from your current home can serve as the deposit and cover purchase costs on property two, so you may not need to save a fresh cash deposit. You still need to satisfy the lender on serviceability, and you'll want a buffer for stamp duty, legals and unexpected costs.
What's the difference between cross-collateralisation and a standalone structure?
Cross-collateralisation is where one lender holds security over both properties together. A standalone (80/20 split) structure releases equity from your home as its own loan, then funds property two on a separate loan — often with a different lender. Many investors prefer standalone because each property is easier to sell, refinance or value on its own. The right choice depends on your goals and is part of your credit assessment.
How do lenders check I can afford two loans?
They assess both loans together, applying a buffer of around 3 percentage points above the actual rate to make sure you could still cope if rates rose. For investment loans, usually about 80% of expected rent is counted as income to allow for vacancy and costs. From February 2026, loans with a debt-to-income ratio above six are also limited to a share of each lender's new lending.
Can I borrow up to 90% or 95% on the second property?
Sometimes. Investment purchases can often go to around 90% LVR with LMI (80% without), and owner-occupier upgrades up to about 95% with LMI — but this is lender-specific and depends on the property and your circumstances. Staying at or under 80% avoids LMI, which is one reason the standalone 80/20 structure is popular.
Will I pay stamp duty and can I claim anything back?
Yes — a second property attracts full stamp duty, and first-home-buyer concessions don't apply. On an investment property, stamp duty forms part of your cost base for capital gains, and interest and many holding costs may be deductible. Rates and rules are state-based and change; confirm current stamp duty with your state revenue office and get advice from your accountant.
Is it risky to use my home as security?
It carries real risk. Your existing home helps secure the new debt, so if values fall or you can't service both loans, the home you already own is exposed. That's why serviceability, a sensible buffer and the right loan structure matter as much as the equity figure. Consider getting independent financial advice before you commit.
What are second-property loan rates like right now?
In mid-2026 indicative average variable rates were around 6% for owner-occupiers and a little higher for investment loans, as at July 2026. Your rate depends on the lender, LVR, product and your situation, and variable rates move with the RBA cash rate. Comparison rates include some fees and will differ from the headline rate. We compare across our panel of 50 lenders to find a fit.
Thinking about property two? Let's map the equity first.
Tell us about your current home, your loan and your goal — we'll estimate your usable equity, structure the loans to keep your options open, and check both are serviceable before you commit. No credit check to start.
Check my options →