Everything You Need to Know About Lenders Mortgage Insurance

Lenders Mortgage Insurance protects the lender if you borrow more than 80% of a property's value and cannot repay the loan.

You pay the premium, but the cover protects the bank. That feels backwards to many borrowers, but understanding how it works and what it costs lets you make an informed decision about whether to save a larger deposit or enter the market sooner with a smaller one.

What Lenders Mortgage Insurance Covers

LMI is a one-off insurance premium charged when your loan to value ratio exceeds 80%. If you default and the lender recovers less than the outstanding loan balance after selling the property, the insurer covers the shortfall. The policy does not protect you from losing your deposit or damage to your credit file. It exists purely to reduce the lender's risk, which is why they require it when your deposit falls below 20%.

The premium varies based on how much you borrow and your deposit size. A borrower with a 10% deposit will pay more than someone with a 15% deposit, even if the loan amount is identical. Lenders also apply different pricing depending on whether you are an owner occupier or investor, and whether you are a first home buyer with access to guarantee schemes.

How LMI Is Calculated and Added to Your Loan

The premium is calculated as a percentage of the loan amount, scaled according to your loan to value ratio. Most borrowers capitalise the cost into the home loan, which means you borrow the premium amount and pay interest on it over the life of the loan. You can choose to pay it upfront, but most people prefer to avoid the immediate cash outlay.

Consider a borrower purchasing at the current median in Brighton with a 10% deposit. The LMI premium might sit somewhere between $15,000 and $25,000 depending on the loan amount and lender. That amount is added to the total loan balance, increasing both the principal and the interest you will pay over time. The actual premium depends on which lender you use, as each insurer has its own risk pricing model.

Some lenders reduce or waive LMI for certain professions, including medical practitioners, accountants, and legal professionals. Others offer reduced premiums for borrowers who meet specific criteria, such as having a guarantor or accessing a state-based first home buyer scheme. These concessions are not widely advertised, which is why working through a mortgage broker often uncovers options you would not find by approaching lenders directly.

When Paying LMI Makes Sense

There are situations where paying LMI is a reasonable trade-off. If property values are rising and you expect to build equity quickly, entering the market sooner may outweigh the cost of the premium. In suburbs like Mentone or Black Rock, where buyer demand has remained strong and stock levels tight, waiting another year or two to save a 20% deposit could mean purchasing at a higher price point.

The calculation comes down to opportunity cost. If you save an additional 10% deposit over two years but property values increase by more than the LMI premium during that time, you have gone backwards. On the other hand, if values remain flat or you can save aggressively without sacrificing other financial goals, avoiding LMI leaves you with lower debt and more equity from day one.

In our experience, borrowers who are confident in their income stability and have a clear plan to make extra repayments tend to be more comfortable with the trade-off. Those who are stretching to meet repayments or entering a volatile employment situation usually benefit from taking more time to build a larger deposit.

How Guarantor Arrangements Can Reduce or Remove LMI

A family guarantee allows a parent or close relative to use equity in their own property as additional security for your loan. This reduces the lender's risk and can eliminate the need for LMI, even with a deposit below 20%. The guarantor does not hand over cash, but they do take on liability if you default.

The guarantee is usually limited to the amount required to bring your effective loan to value ratio below 80%. Once you have made enough repayments or the property has increased in value, the guarantee can be removed. It is a useful option for first home buyers who have strong income but limited savings, particularly in higher-priced areas like Brighton East or Sandringham.

The risk for the guarantor is real. If you cannot meet repayments and the property sells for less than the outstanding debt, the shortfall may be recovered from the guarantor's property. That makes it important to structure the arrangement carefully, with legal advice and a clear understanding of how and when the guarantee will be released.

LMI and Refinancing

If you refinance and your loan to value ratio is still above 80%, you may be required to pay LMI again with the new lender. The original premium does not transfer. Some lenders will allow you to refinance without re-triggering LMI if your circumstances meet specific criteria, such as maintaining the same loan balance or staying within a certain timeframe.

This is one reason why borrowers with smaller deposits should think carefully before switching lenders in the first few years. If your property has increased in value or you have paid down enough of the loan to drop below 80%, refinancing becomes more viable. Until then, moving to a new lender can mean paying LMI twice, which rarely makes financial sense unless you are securing a significantly lower interest rate or better loan features.

Call one of our team or book an appointment at a time that works for you to discuss whether paying LMI now or waiting to build a larger deposit suits your situation and timeline.

Frequently Asked Questions