Lenders mortgage insurance: what it is and how to avoid it

One of the first financial concepts that catches first home buyers off guard is lenders mortgage insurance. The name sounds like it protects you as the borrower. It doesn't. It protects the lender. But you're the one who pays for it.

To see how it fits the bigger journey, read our step-by-step first-home buyer guide for Victoria.

Understanding what LMI is, when it applies, what it costs, and how to avoid it is genuinely useful knowledge for anyone approaching a property purchase.

What is LMI?

Lenders mortgage insurance (LMI) is an insurance policy that the lender takes out to protect themselves if you default on your loan and the property sells for less than the outstanding debt.

Here's the scenario it's designed for: you borrow $550,000 to buy a $600,000 property (a small deposit relative to the purchase price). Several years later, you can't make repayments and the lender has to sell the property. The market has dropped and the property only sells for $520,000. There's a $30,000 gap between the sale proceeds and your outstanding debt. Without LMI, the lender wears that loss (after pursuing you for it). With LMI, the insurer covers the gap.

This insurance protects the lender's balance sheet. You are not a beneficiary of the policy. But you pay for it.

When does LMI apply?

LMI applies when your loan-to-value ratio (LVR) exceeds 80%, which your lender assesses as part of pre-approval. LVR is the loan amount expressed as a percentage of the property's value.

If you're buying a $700,000 property and you have a $140,000 deposit (20%), your LVR is exactly 80% and LMI generally doesn't apply.

If you have $90,000 and borrow $610,000, your LVR is approximately 87%. LMI applies.

The specific threshold and the way it's calculated can vary slightly between lenders, but 80% LVR is the standard trigger.

What does LMI cost?

LMI premiums are not small. They're calculated based on the loan amount and the LVR, and they increase as the LVR increases.

As a rough guide:

• A loan of $500,000 at 85% LVR might attract LMI of approximately $8,000 to $12,000
• A loan of $600,000 at 90% LVR might attract LMI of approximately $15,000 to $20,000 or more

These are illustrative figures only. The actual premium depends on the specific lender, the insurer they use (the two main LMI providers in Australia are Helia and QBE), the loan amount, and the LVR.

LMI is typically added to your loan (capitalised) rather than paid as an upfront fee. This means you pay it off over the life of the loan with interest, which increases the total cost. Some lenders allow you to pay it upfront instead.

The LMI premium is also not transferable if you refinance. If you move to a different lender before your LVR drops below 80%, you may need to pay a new LMI premium with the new lender.

Is LMI always bad?

Not necessarily. LMI is a real cost, but it also lets you buy with a smaller deposit rather than waiting to save a full 20%. Whether that trade-off makes sense depends on your circumstances, the market, and how long saving the extra deposit would take. It's a cost worth minimising where you can, and a mortgage broker or financial adviser can help you weigh it up for your situation.

Ways to avoid LMI

There are several legitimate paths to avoid LMI:

1. Save a 20% deposit

The most straightforward approach. If your deposit is 20% or more of the purchase price, LMI doesn't apply. For many buyers this is difficult to achieve quickly, but it remains the most straightforward path.

2. Use a guarantor

A family guarantee arrangement, where a parent or other family member offers equity in their own property as additional security, can bring the effective LVR below 80% without you needing a 20% deposit in cash. See our separate post on guarantor loans for how this works.

3. The First Home Guarantee

The federal government's First Home Guarantee (FHG) allows eligible first home buyers to purchase with a 5% deposit and no LMI. The government guarantees the gap between your deposit and 20%, which satisfies the lender's LVR requirement without an LMI policy being needed.

There are eligibility requirements (income limits, property price caps) and a limited number of places available each financial year. This is one of several first home buyer grants and schemes; check the Housing Australia website for current details.

4. The Regional First Home Buyer Guarantee

Similar to the First Home Guarantee, this scheme targets buyers purchasing in regional areas. The deposit and LMI structure is the same: 5% deposit, no LMI, backed by the government's guarantee.

5. Profession-based LMI waivers

Some lenders offer LMI waivers for borrowers in certain professions. The most common are medical professionals (doctors, dentists, veterinarians), lawyers, accountants, and some engineers. These borrowers are considered lower risk by some lenders due to their income stability and earning potential.

An LMI waiver from a lender is not the same as a government guarantee scheme. It's a policy decision by the lender to not require LMI for certain borrower profiles even above 80% LVR. Not all lenders offer these, and the specific professions and conditions vary.

6. The First Home Super Saver Scheme

The First Home Super Saver Scheme (FHSSS) allows first home buyers to make voluntary super contributions and later withdraw them (with some tax advantages) for a home deposit. It doesn't directly avoid LMI, but it can accelerate deposit savings for buyers using it consistently over time.

Weighing LMI against saving for longer

Buyers weighing up LMI often compare the premium against how much prices might move while they keep saving for a larger deposit. Both sides of that comparison, future prices and how long saving takes, are uncertain and specific to you, so it isn't something a general guide can resolve. A mortgage broker or financial adviser can model your actual numbers, and knowing the exact LMI figure (below) is the first input.

Checking what you'll pay

You can get an estimate of your LMI costs using online LMI calculators (both Helia and QBE publish calculators on their websites). Your mortgage broker or lender can also tell you the exact LMI amount before you commit to a loan.

Knowing the exact cost upfront means you can factor it into your budget and make a properly informed decision about whether to pay it or pursue one of the alternatives.

Sources

• ASIC's Moneysmart: Lenders mortgage insurance: the federal consumer regulator's explanation of LMI, that it protects the lender not the borrower, and the 80% LVR trigger.
• Housing Australia: First Home Guarantee: the federal scheme letting eligible first home buyers purchase with a 5% deposit and no LMI.
• Australian Taxation Office: First Home Super Saver Scheme: the super-based deposit-saving scheme.

Sources verified 25 July 2026. LMI costs are set by insurers and lenders and vary; scheme eligibility changes over time; confirm current details with your lender, broker, or the authority above.