When you apply for a mortgage, one number shapes how much you can borrow and how well banks treat your application: your loan-to-value ratio, or LVR. It is a simple idea with a big effect. The size of your deposit relative to the property price decides not just whether a bank will lend, but at what rate and with what extra costs. Understanding LVR helps you see why a bigger deposit opens doors, and how the Reserve Bank's rules shape the whole market.
LVR is your loan divided by the property value, shown as a percentage. The rest is your deposit, or equity.
The Reserve Bank uses LVR restrictions as a tool to keep the financial system stable. Borrowers with small deposits are more likely to end up owing more than their home is worth if prices fall, which is riskier for banks and the economy. By limiting high-LVR lending, the rules reduce that risk and lean against runaway house prices.
The deposit you need depends on whether you will live in the home or rent it out. Owner-occupiers generally face a lower deposit hurdle than investors, reflecting the policy aim of supporting people into their own homes.
| Buyer type | Typical deposit for the widest options |
|---|---|
| Owner-occupier | Around 20% (80% LVR) |
| Investor | A larger deposit, often around 30% or more |
| New build (either) | Often exempt, so a smaller deposit may be possible |
The rules do not ban high-LVR lending outright. Instead, each bank may do only a limited share of its new lending above the threshold, a so-called speed limit. That means a slice of low-deposit lending is allowed, but it is rationed, so banks are selective about who gets it.
To encourage construction, newly built homes are frequently exempt from the usual LVR limits, so you may be able to buy a new build with a smaller deposit than an existing home. If your deposit is tight, a new build can be one route to getting in sooner.
Use our Mortgage Calculator to see repayments at different loan sizes, and the Borrowing Capacity guide for how much you can borrow.
If you borrow with a small deposit, banks usually charge a low-equity premium or margin, an extra cost on top of the normal interest rate, because the loan is riskier for them. It might be a higher interest rate or a one-off fee. As you build equity and your LVR falls, you can often have this premium removed.
Even with a healthy deposit, banks also check that you can afford the repayments, and debt-to-income limits may apply alongside LVR. A good LVR helps, but your income and expenses still have to support the loan.
The trap: Giving up because you do not have a full 20% deposit.
Why it costs: Banks can still lend above 80% within their speed limit, and new builds are often exempt. A smaller deposit narrows options but does not always rule you out. It is worth asking.
The trap: Not realising a small deposit adds an ongoing cost.
Why it costs: The premium can add meaningfully to your repayments. Factor it in, and ask to have it removed once your LVR drops below the threshold.
The trap: An investor expecting the owner-occupier deposit level.
Why it costs: Investors usually need a larger deposit, so budgeting on the owner-occupier figure leaves a shortfall. Plan for the investor threshold.
The trap: Focusing only on the deposit and assuming a good LVR guarantees approval.
Why it costs: Banks also test that you can service the loan, and DTI limits may apply. A strong LVR helps but does not replace affordability.
Use the Mortgage Calculator for repayments, the Borrowing Capacity guide for how much you can borrow, and the DTI guide for debt-to-income limits.
Final word: Your LVR, the size of your loan against the property value, shapes how banks treat your mortgage. Aim for around a 20% deposit as an owner-occupier to get the widest options and avoid a low-equity premium, knowing that smaller deposits are still possible within bank speed limits and on new builds. Lower your LVR over time, and remember affordability matters too. This is general information, not personalised lending advice, so talk to a mortgage adviser about your own situation.
Quiz on LVR Restrictions (20 Questions)
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