Understanding Lenders Mortgage Insurance (LMI) in Australia: How to Avoid or Reduce the Cost
LMI can add thousands to your home loan. Learn what triggers it, strategies to avoid it, and how to calculate your potential cost.

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Lenders Mortgage Insurance (LMI) is a one-off premium you pay when your deposit is less than 20% of the property value. It protects the lender if you default, not you. For a 500,000 dollar home with a 10% deposit, LMI can cost between 10,000 and 20,000 dollars or more, depending on the loan-to-value ratio (LVR) and lender. You can avoid it entirely by saving a 20% deposit, accessing a guarantor loan, or qualifying for the Home Guarantee Scheme.
What Is Lenders Mortgage Insurance?
LMI is an insurance policy that protects the lender, not the borrower, when you borrow more than 80% of the property’s value. According to ASIC MoneySmart, most lenders require LMI when your deposit falls below 20%, because a higher loan-to-value ratio increases the risk of loss if the property is repossessed and sold for less than the outstanding loan balance.
The premium is calculated based on your LVR, the loan amount, and the lender’s risk assessment. You pay it once, usually at settlement, and it can be added to your loan balance (capitalised) or paid upfront. When capitalised, you pay interest on the LMI premium over the life of the loan, which increases the total cost.
When Do You Pay LMI?
You typically pay LMI when your LVR exceeds 80%. The higher your LVR, the higher the premium:
- LVR 80% to 85%: LMI applies but the cost is relatively modest.
- LVR 85% to 90%: Premium increases significantly.
- LVR 90% to 95%: LMI can cost tens of thousands of dollars on a standard home loan.
Some lenders accept LVRs above 95% in limited circumstances, but the LMI premium becomes prohibitively expensive for most borrowers. Specific LMI costs vary between lenders and mortgage insurers, and rates can change, so always request an exact quote before committing.
Strategies to Avoid or Reduce LMI
1. Save a 20% Deposit
The most straightforward way to avoid LMI is to save a deposit of at least 20% of the property’s purchase price, plus costs for stamp duty, conveyancing, and other settlement fees. For a 600,000 dollar property, that means a 120,000 dollar deposit. This approach eliminates the LMI premium entirely and typically gives you access to better interest rates and more loan products.
2. Use a Guarantor
A family member (often a parent) can act as guarantor by offering their own property as additional security for your loan. The guarantor’s equity reduces the lender’s risk, allowing you to borrow more than 80% LVR without paying LMI. The guarantor is liable if you default, so this strategy requires careful legal and financial advice for both parties. Most lenders allow the guarantor to be released once your LVR falls below 80% through repayments or property value growth.
3. Access the Home Guarantee Scheme
The Home Guarantee Scheme, administered by the National Housing Finance and Investment Corporation (NHFIC), allows eligible first home buyers, single parents, and regional buyers to purchase with a deposit as low as 5% without paying LMI. The federal government acts as guarantor for the portion of the loan above 80% LVR. Places are limited and released each financial year, and eligibility depends on income caps, property price caps, and whether you meet the scheme’s first home buyer or other criteria.
Read also: How to Calculate LMI on a High-LVR Home Loan in Australia
4. Consider Professional Occupation Discounts
Some lenders waive or reduce LMI for borrowers in certain professions, such as doctors, lawyers, accountants, and other professionals, allowing LVRs up to 90% or even 95% without the standard LMI premium. Eligibility and terms vary by lender, so compare policies if you work in a recognised profession.
5. Capitalise the Premium and Refinance Later
If you cannot avoid LMI now, you can add the premium to your loan balance and refinance to a lower-rate loan once your LVR drops below 80% through repayments or property value increases. This strategy does not eliminate the cost, but it defers the upfront cash requirement and lets you access better loan terms sooner than waiting years to save a full 20% deposit.
How Much Will LMI Cost You?
LMI premiums are not standardised across lenders. The cost depends on:
- Loan-to-value ratio: Higher LVR means higher premium.
- Loan amount: Larger loans incur higher premiums in absolute dollar terms.
- Property type: Investment properties and apartments may attract higher premiums than owner-occupied houses.
- Postcode and location: Some regional or higher-risk areas can increase the premium.
- Lender and insurer: Different lenders use different mortgage insurers, and premiums vary.
An LMI calculator lets you estimate the premium for your specific loan scenario by entering the purchase price, deposit amount, loan term, and property type. Knowing the cost upfront helps you decide whether to save a larger deposit, pursue a guarantor arrangement, or apply for the Home Guarantee Scheme.
Next Steps
Use the LMI calculator to estimate your premium based on your deposit and loan amount. The result shows how much LMI will cost and how different deposit levels affect the premium. Compare that cost against the time required to save a larger deposit or the feasibility of a guarantor loan. For personalised advice on your borrowing capacity, LVR, and strategies to minimise LMI, consult a licensed mortgage broker or lender.
Important Information
This article provides general information only and does not consider your objectives, financial situation, or needs. LMI premiums, eligibility for the Home Guarantee Scheme, guarantor loan terms, and professional occupation discounts vary by lender, product, and individual circumstances. Interest rates, loan features, and scheme availability change frequently. Verify current terms with a licensed lender or mortgage broker before making any property finance decision. This is not personal financial, lending, or legal advice. Consider obtaining advice from a licensed professional before acting on any information in this article.
Sources
- Home Loans (accessed )
- First Home Loan Deposit Scheme (accessed )
- Home Loans Guide (accessed )


