Key Takeaway

Lenders mortgage insurance (LMI) is a one-off premium you pay when your deposit is less than 20 per cent of the property’s value. It protects the lender, not you, if you default on the loan. The cost typically ranges from a few thousand to over A$30,000 depending on your loan size and deposit, and you can either pay it upfront or add it to your loan amount.

Introduction

For many Australians, particularly first-home buyers, saving a 20 per cent deposit can take years. Lenders mortgage insurance exists to help you buy sooner with a smaller deposit, but it comes at a cost. Understanding when LMI applies, how much you will pay, and whether you can avoid it is essential to making an informed decision about your home loan.

What Is Lenders Mortgage Insurance?

Lenders mortgage insurance is a policy that protects your lender (the bank or financial institution) against loss if you default on your home loan and the property is sold for less than you owe. Despite the fact that you pay the premium, LMI covers the lender, not you. If you stop making repayments and your property is repossessed and sold, the insurer reimburses the lender for any shortfall. You remain liable for the debt.

LMI is a one-off cost, not an ongoing monthly premium. Once paid, it covers the lender for the life of that specific loan.

When Does LMI Apply?

LMI is typically required when your loan-to-value ratio (LVR) exceeds 80 per cent. The LVR is calculated as:

LVR = (Loan Amount / Property Value) x 100

For example, if you borrow A$480,000 to buy a A$600,000 property, your LVR is 80 per cent. You have a 20 per cent deposit (A$120,000) and no LMI is required.

If you borrow A$540,000 for the same property, your LVR is 90 per cent. You have only a 10 per cent deposit (A$60,000), and the lender will require you to pay LMI.

Most lenders will lend up to 95 per cent of the property’s value (a 5 per cent deposit) with LMI. Some lenders may go higher under specific circumstances, but this is less common.

How Much Does LMI Cost?

The cost of LMI varies based on your LVR and the size of your loan. The higher your LVR (that is, the smaller your deposit), the higher the premium. LMI is calculated by the insurer and added to your loan, and the exact amount can differ between lenders and insurers.

As a rough guide, according to consumer resources such as ASIC MoneySmart, LMI can range from a few thousand dollars to over A$30,000. For example:

  • A loan of A$400,000 with a 10 per cent deposit (90 per cent LVR) might incur LMI of around A$8,000 to A$12,000.
  • A loan of A$600,000 with a 5 per cent deposit (95 per cent LVR) might incur LMI of A$25,000 to A$35,000 or more.

These are indicative figures only. The actual cost depends on the lender, the insurer they use, your loan amount, and your LVR. Always ask your lender or mortgage broker for a precise LMI quote based on your circumstances.

How Do You Pay for LMI?

You have two options for paying LMI:

Pay upfront: You pay the full LMI premium at settlement from your own funds. This avoids adding to your loan balance and reduces the amount of interest you pay over the life of the loan.

Capitalise it (add it to your loan): The LMI premium is added to your loan amount, and you repay it over the life of the loan with interest. This is the more common choice because many borrowers with a small deposit do not have extra cash available at settlement. However, capitalising LMI means you will pay interest on the premium, increasing the total cost over time.

For example, if your LMI is A$15,000 and you capitalise it into a 30-year loan at 6 per cent interest, you will repay approximately A$32,000 over the life of the loan (principal plus interest).

How to Avoid Paying LMI

There are several ways to avoid or reduce LMI:

Save a 20 per cent deposit: The most straightforward way to avoid LMI is to have a deposit of at least 20 per cent of the property’s value, bringing your LVR to 80 per cent or below.

Use a family guarantee: Some lenders allow a parent or other family member to use the equity in their own property as additional security for your loan. This can reduce your LVR below 80 per cent and eliminate the need for LMI. The guarantor takes on risk, so this option requires careful consideration and independent legal advice.

Apply for a government scheme: The Australian Government’s Home Guarantee Scheme, administered by the National Housing Finance and Investment Corporation, helps eligible first-home buyers and other groups (such as single parents) buy with a deposit as low as 5 per cent without paying LMI. The government guarantees part of the loan instead. Eligibility criteria, income caps, and property price caps apply. For details, see the NHFIC First Home Loan Deposit Scheme page.

Choose a lender with a professional LMI waiver: Some lenders waive LMI for borrowers in certain professions (such as medical doctors, accountants, or lawyers) if they meet specific criteria, such as a minimum income level or a deposit of at least 10 per cent.

Is Paying LMI Worth It?

Whether LMI is worth paying depends on your personal circumstances and the property market.

Advantages of paying LMI:

  • You can buy sooner with a smaller deposit, which may allow you to enter the market before prices rise further.
  • You start building equity in your own property rather than continuing to pay rent.
  • If property values increase, the benefit of earlier ownership may outweigh the cost of LMI.

Disadvantages:

  • LMI can add tens of thousands of dollars to the cost of your home loan.
  • It protects the lender, not you. You receive no direct benefit from the insurance.
  • Capitalising LMI increases your loan balance and the total interest you pay.

For many first-home buyers, paying LMI is a practical trade-off to get into the market sooner. However, it is important to weigh the cost against the benefits and consider your financial capacity to meet repayments on a higher loan balance.

Important Things to Know

LMI is not refundable: If you refinance or pay off your loan early, the LMI premium is not refunded. However, some insurers offer a partial LMI waiver or discount if you refinance to a new lender within a certain period (usually one to two years) and use the same insurer.

LMI cannot be cancelled: Even if your LVR falls below 80 per cent due to repayments or property value increases, you cannot cancel the LMI or receive a refund.

Tax treatment: For owner-occupiers, LMI is not tax-deductible. For investment properties, LMI may be tax-deductible, but tax rules are complex and you should consult a qualified tax professional or accountant for advice specific to your situation.

LMI varies by lender: Different lenders use different LMI providers, and premiums can vary. It is worth comparing quotes from multiple lenders or working with a licensed mortgage broker who can help you find the most competitive option.

Conclusion

Lenders mortgage insurance allows you to buy a home with a deposit of less than 20 per cent, but it comes at a cost that can be substantial. Understanding when LMI applies, how much you will pay, and your options for avoiding or minimising it is essential to making an informed decision. Always compare lenders, consider government schemes if you are eligible, and seek advice from a licensed mortgage broker or financial adviser to understand the full cost and implications for your circumstances.

Rates, LMI premiums, eligibility for schemes, and lender policies change frequently. The information above is general in nature and current as of June 2026. It does not take into account your personal objectives, financial situation, or needs. You should consider obtaining personal advice from a licensed mortgage broker or financial adviser before making any decisions about LMI or home loans.

General Advice Warning: The information provided in this article is general in nature only and does not consider your personal objectives, financial situation, or needs. You should consider whether this information is appropriate for your circumstances and seek advice from a licensed financial adviser, mortgage broker, or other qualified professional before acting on it. This is not personalised financial, lending, or legal advice.