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How much deposit do you need to buy a home in Australia (and what is LMI)?

Deposit size, the usual threshold, and how lenders mortgage insurance works, explained in plain English for buyers in Australia.

Home buyers23 June 20265 min read

How much deposit lenders look for

Lenders typically want a deposit of a certain share of the purchase price, with a larger deposit attracting fewer conditions. The more you put down, the less you borrow and the lower your repayments and total interest.

If your deposit is below the usual threshold you may still be able to buy, but an extra cost called lenders mortgage insurance can apply.

What lenders mortgage insurance is

Lenders mortgage insurance protects the lender, not you, if a loan with a smaller deposit ends up in default. It is usually a one-off cost, and it can often be added to the loan rather than paid upfront, which spreads it out but means you pay interest on it.

It lets some buyers get in sooner with a smaller deposit. Whether that trade-off is worth it depends on your goals, how fast prices are moving, and how long you would otherwise spend saving.

Ways to reduce or avoid it

Saving a larger deposit is the obvious route. Some buyers also use a family guarantee, where a relative offers equity in their property as additional security, and certain government schemes can help eligible buyers reduce the deposit hurdle.

Each option has rules and trade-offs, so it is worth understanding them before deciding which path suits you.

How Mortgage Station helps

We will model your deposit against real loan options, show you where lenders mortgage insurance kicks in and what it would cost, and compare ways to reduce it across a whole-of-market lender panel.

Book a free, no-obligation chat and we will work out the smartest deposit strategy for you.

Key points

  • A bigger deposit means lower repayments and less total interest.
  • Below the usual threshold, lenders mortgage insurance may apply.
  • It protects the lender, not you, and can often be added to the loan.
  • A family guarantee or eligible schemes may reduce or avoid it.

Have a question now?

Talk to a broker, not a blog

This article is general information only. Book a free, no-obligation chat for advice specific to your situation.

Mortgage Station Pty Ltd ACN 050601093 is an Authorised Representative (Credit Representative Number 458488) of Mortgage Specialists Pty Ltd (Australia Credit Licence 387025). The information provided on this site is on the understanding that it is for illustrative and discussion purposes only. Whilst all care and attention are taken in its preparation, any party seeking to rely on its content or otherwise should make their own enquiries and research to ensure its relevance to your particular circumstances.