If you are wondering how much deposit to buy a house Australia lenders expect, the answer depends on the loan to value ratio (LVR) you choose. Many first-time home buyers can start with a 5% deposit, but the size of your deposit affects lender mortgage insurance (LMI), your repayments and how many lenders will consider your application.

This guide breaks down deposit size by LVR band, explains how LMI applies at each level and shows how lenders assess genuine savings. It is written for first-time buyers who want a realistic savings target before they start searching.

TL;DR Summary

• A 20% deposit (80% LVR) avoids LMI and is the usual benchmark.
• A 5% deposit home loan is possible, but LMI usually applies unless a government guarantee covers you.
• LMI protects the lender, is a one-off premium and can often be added to the loan.
• Many lenders want genuine savings, meaning money built up over time rather than a recent lump sum.
• Your borrowing capacity and savings pace both shape the deposit target that suits you.

How Much Deposit to Buy a House in Australia: The Basics

There is no single legal minimum deposit across Australia. Each lender sets its own policy, and most work from LVR, which compares the loan amount with the property value. A lower deposit means a higher LVR, and a higher LVR means more risk for the lender.

What LVR Means

LVR is the loan amount divided by the property value, shown as a percentage. If you put down a 10% deposit, you borrow the remaining 90% of the value, which is an LVR of 90%. Lenders tend to group loans into bands at 80%, 85%, 90% and 95%, and policy, rates and LMI often change as you cross each band.

Why 20% Is the Benchmark

Once the deposit reaches 20% (80% LVR), lenders generally no longer require LMI. This is why 20% is often quoted as the ideal target. It is a benchmark, not a rule, and many buyers purchase with less.

Why Lenders Care About Your Deposit

A larger deposit gives the lender a buffer if property values fall, and it shows you can save consistently. That is why policy tightens as LVR rises. Higher LVR loans often face a closer review of income, expenses and credit history, and some lenders limit the property types or locations they will accept at 95% LVR.

Deposit Size by LVR Band

The table below shows how each LVR band changes the deposit, the share of the property you borrow and how LMI generally applies. LMI treatment varies by lender, insurer, loan size and borrower profile, so confirm the detail for your own situation.

LVR band	Deposit	Share borrowed	How LMI generally applies
80%	20%	80%	Not usually required
85%	15%	85%	Usually applies, at the lowest premium rate of the LMI bands
90%	10%	90%	Usually applies, at a higher premium rate
95%	5%	95%	Usually applies unless a government guarantee or lender waiver covers you

Notice that the step from a 10% to a 5% deposit brings the most change. Each step down in deposit raises both the premium rate and the amount of the loan it applies to, and lender policy also tightens.

What Does LMI Add to Your Loan?

LMI is a one-off premium that protects the lender, not you, if a borrower defaults and the property sells for less than the loan balance. It allows lenders to approve loans above 80% LVR, which is how many buyers get into the market earlier.

How LMI Is Calculated

The premium is based on your LVR, the loan amount, your employment type and whether you are a first-time buyer or an investor. Most lenders let you add the premium to the loan, which avoids paying it upfront but means you pay interest on it over the loan term. Some lenders waive LMI for certain professions, such as doctors or lawyers, subject to policy conditions.

Is Paying LMI Worth It?

That depends on your situation. Paying LMI can let you buy sooner, which may matter if property values in your area are rising faster than you can save. Waiting to reach 20% avoids the premium and lowers your loan, but it also means renting for longer. Your deposit size also determines which LVR band, and therefore which premium rate, applies to your loan. Comparing both scenarios with real quotes is more useful than relying on a rule of thumb.

5% Deposit Home Loan: What to Expect

A 5% deposit home loan is available through a number of lenders, but the conditions are tighter than for larger deposits.

• Fewer lenders and products may be available at 95% LVR.
• Credit assessment is stricter, including a closer look at your living expenses, debts and credit file.
• Interest rates can be higher than for loans at 80% LVR or below.
• Genuine savings are often a requirement.

Government Support for First Home Buyers

The federal First Home Guarantee can let eligible first home buyers purchase with a 5% deposit without paying LMI, because the government guarantees part of the loan. Eligibility rules, property price caps and place allocations apply, so check the current criteria with Housing Australia or a broker before you rely on it. In NSW, you may also qualify for state support, which our guide to first home buyer grants in NSW explains.

Genuine Savings Explained

Genuine savings are funds you have built up over time through your own effort, usually held in your name. Lenders use them as evidence that you can maintain a regular savings pattern and manage repayments.

Many lenders want to see a minimum share of the purchase price, often 5%, held for about three months when your deposit is below 20%. Rules differ between lenders.

What Usually Counts

• Regular savings from your salary
• Term deposits held for a set period
• Shares or investments held for at least three months
• Proceeds from the sale of a property you owned

What May Not Count

Recent unexplained lump sums and cash deposits without a clear trail are often questioned. Gifts from family may count toward the deposit with a signed gift letter, but some lenders do not treat them as genuine savings.

How to Set Your Savings Target

1. Choose a realistic purchase price based on your borrowing power and target suburb.
2. Pick the LVR band you are aiming for, then work out the deposit as a share of that price.
3. Allow for LMI if your deposit is under 20%.
4. Subtract any grants you qualify for.
5. Divide the remaining deposit by your monthly savings to estimate a timeline.

For example, aiming for 90% LVR means saving a 10% deposit before any grants, and LMI can usually be added to the loan.

Final Thoughts

The right deposit depends on your income, how fast you can save and how long you are willing to wait. A 20% deposit avoids LMI, while 5% to 15% can bring home ownership forward with added costs. Understanding each LVR band lets you compare the trade-offs clearly. Skyline Brokers is a boutique mortgage broker in Sydney that can explain your options across its lender panel. Contact us to discuss your savings target and the deposit that suits your plans.

Frequently Asked Questions

Can I buy a house with a 5% deposit in Australia?

Yes, many lenders offer loans up to 95% LVR. LMI usually applies unless you qualify for the First Home Guarantee or a lender waiver. You will also need to meet income, expense and genuine savings requirements.

Do I have to pay LMI with less than a 20% deposit?

In most cases, yes. LMI generally applies to loans above 80% LVR, although government guarantees and some professional packages may remove it.

Can LMI be added to my loan?

Most lenders allow it. Adding LMI to the loan means you do not pay it upfront, but it increases your loan balance and the interest charged over time.

What counts as genuine savings?

Regular savings from your income, term deposits and investments held for a set period usually count. Rules vary by lender, so confirm requirements before you apply.

Can I use a gift from family as my deposit?

Often yes, with a signed gift letter confirming it does not need to be repaid. Some lenders treat gifted funds differently when assessing genuine savings.

Does a bigger deposit lower my interest rate?

It can. Many lenders offer lower rates at lower LVRs, and a bigger deposit also reduces your borrowing and LMI. Offers vary, so compare options.