First Home Buyers
What is LMI — and how to legally avoid it
7 min read · By Daniel Lagden · 24 June 2026
The short version
- LMI is a one-off insurance premium that protects the lender if you default — not you.
- It usually applies when you borrow more than 80% of a property's value.
- On a $700,000 purchase with a 5% deposit, LMI can exceed $25,000.
- Government guarantee schemes, a larger deposit, a guarantor, or your profession can all reduce or remove it.
Lenders Mortgage Insurance, or LMI, is one of the most misunderstood costs in buying a home. The name makes it sound like it protects you. It doesn't. LMI protects the lender if you can't repay the loan and the property sells for less than what's owed. You pay the premium; the bank gets the cover.
It's not a scam, though. LMI is what lets banks say yes to buyers with smaller deposits. Without it, most lenders would want 20% down before lending a cent. So while nobody enjoys paying it, LMI is often the thing that gets people into the market years earlier. The goal is to understand it and only pay it when it actually makes sense.
When does LMI apply?
As a rule of thumb, lenders charge LMI when you borrow more than 80% of the property's value — known as the Loan-to-Value Ratio, or LVR. Put another way, if your deposit (plus costs) is under 20%, expect LMI to be on the table.
The lower your deposit, the higher the premium, because the lender is taking on more risk. A 5% deposit attracts far more LMI than a 15% deposit. The premium also scales with the loan size, so the same LVR costs more on an $800,000 loan than a $400,000 one.
How much does LMI cost?
LMI is calculated on a sliding scale and varies by lender and insurer, but the numbers get large quickly. On a $700,000 purchase with a 5% deposit, the premium can sit north of $25,000. It's usually 'capitalised' — added on top of your loan — so you end up paying interest on it for the life of the loan unless you pay it down.
LMI is a one-off premium, not an ongoing fee. But because it's typically added to the loan, a $25,000 premium left untouched can cost far more than $25,000 over a 30-year term once interest is counted.
The legitimate ways to reduce or avoid LMI
- Save a 20% deposit. The simplest route — at 80% LVR or below, standard LMI disappears. Not always realistic on Gold Coast prices, but it's the clean option.
- Use a government guarantee scheme. Eligible first home buyers may purchase with as little as a 5% deposit and no LMI under the Australian Government's deposit scheme, where a portion of the loan is guaranteed instead. Places, caps and eligibility apply.
- Bring in a guarantor. A family member can use equity in their own property as additional security, lifting your effective deposit above 20% and removing LMI. This is a serious commitment for the guarantor and needs careful structuring.
- Use a profession-based waiver. Some lenders waive LMI entirely for borrowers in specific occupations — doctors, lawyers, accountants and certain other professionals — even at higher LVRs.
- Buy slightly under your ceiling. Sometimes nudging the purchase price or adding a little to the deposit tips you into a lower LMI band and saves thousands.
Should you avoid LMI at all costs?
Not always. There's a real trade-off between paying LMI now and waiting years to save a 20% deposit while prices and rents keep moving. For some buyers, paying LMI to get in earlier is the cheaper decision over time. For others, a guarantor or scheme makes far more sense. The right answer depends on your numbers, your timeline and which lenders you qualify with.
That's the part a good broker earns their keep on: modelling 'pay LMI and buy now' against 'wait, save more, or use a scheme' so you can see the actual dollars before you decide.
Run the numbers
Frequently asked questions
Is LMI refundable if I sell or refinance early?
Partial refunds were historically available if a loan was discharged within the first year or two, but most insurers have wound this back and many no longer offer it. Don't assume a refund — check the specific policy before relying on it.
Can I pay LMI upfront instead of adding it to the loan?
Some lenders let you pay the premium upfront rather than capitalising it onto the loan. Paying upfront avoids paying interest on the premium, but it means a larger cash outlay at settlement. Which is better depends on your cash position.
Does LMI protect me if I lose my job?
No. LMI only protects the lender. If you want cover for your own repayments in the event of illness, injury or job loss, that's a separate product such as income protection or mortgage protection insurance.
