What is Lenders Mortgage Insurance (LMI)?

Lenders Mortgage Insurance (LMI) is a type of insurance that borrowers often need to pay when buying a home with a small deposit. It protects the lender (such as the bank), not the borrower (you), in case the borrower cannot repay the loan.

LMI is commonly required when a home loan has a deposit of less than 20% of the property value. Because smaller deposits increase risk to the lender, the insurance helps offset that risk and allows banks to offer loans with lower deposits.

For first home buyers, understanding how LMI works is important because it can add thousands of dollars to the cost of buying a property. If you are planning to purchase your first home, our guide to First Home Buyer Home Loans in Australia explains how deposits, borrowing capacity, and government schemes affect the overall loan structure.

Why does Lenders Mortgage Insurance exist?

Home loans with small deposits carry a higher risk for lenders. If a borrower defaults and the property is sold for less than the remaining loan balance, the lender could suffer a financial loss.

Lenders Mortgage Insurance reduces this risk by covering part of the potential loss if the borrower defaults.

Because the lender is protected, banks are willing to offer loans with smaller deposits, which helps more people enter the housing market.

Without LMI, many lenders would require a much larger deposit before approving a home loan.

When do you have to pay LMI?

In most cases, LMI is required when the deposit is less than 20% of the property price.

When the deposit reaches 20%, LMI is usually no longer required.

However, some government programs allow first home buyers to purchase with a smaller deposit without paying LMI.

How much does LMI cost?

The cost of Lenders Mortgage Insurance varies depending on several factors, including:

• loan amount
• size of the deposit
• property value
• lender policies

In general, the smaller the deposit, the higher the LMI premium.

These figures vary between lenders, but they illustrate how quickly the cost rises as the deposit becomes smaller.

Example of LMI cost

In many cases this cost is added to the loan balance, meaning the borrower does not have to pay it upfront but will pay interest on it over time.

How LMI affects the total cost of a loan

Even when the insurance premium is added to the loan rather than paid upfront, it still increases the total amount borrowed.

Because interest is charged on the larger loan, LMI can increase the total cost of borrowing over the life of the mortgage.

For many borrowers the additional cost may still be worthwhile because it allows them to buy a home sooner rather than waiting years to save a larger deposit.

How to avoid paying LMI

There are several ways borrowers may avoid paying Lenders Mortgage Insurance.

Save a 20% deposit

The simplest way is to provide a 20% deposit, which usually removes the need for LMI entirely.

Use a government guarantee scheme

Programs such as the First Home Guarantee allow eligible buyers to purchase with as little as a 5% deposit without paying LMI, because the government guarantees part of the loan.

Use a family guarantor loan

Some lenders allow parents or family members to guarantee part of the loan using equity in their own property.

This arrangement can allow borrowers to avoid LMI, although guarantors take on financial risk.

Has LMI always existed in Australia?

Lenders Mortgage Insurance has been used in Australia for several decades and became more widespread as lenders began offering low-deposit home loans.

Insurance providers such as Genworth and QBE have historically been the main providers of LMI in the Australian mortgage market.

The system developed as a way to expand access to home loans while still managing financial risk for lenders.

Today, LMI remains a standard feature of many Australian mortgages, particularly for borrowers entering the market with smaller deposits.

Is LMI worth paying?

For some buyers, LMI can feel frustrating because it is insurance that protects the lender rather than the borrower.

However, it also allows buyers to purchase property earlier, rather than waiting several additional years to save a larger deposit.

For first home buyers in particular, the decision often comes down to weighing the cost of LMI against the potential benefit of entering the property market sooner.