Need guidance? Enjoy unlimited support from 9AM-6PM AEST and lodgement in 24-hours. Call: ๐ 08 6722 8806
Buying a home in Australia often means navigating complex costs, and Lenders Mortgage Insurance (LMI) is one of the most misunderstood. If you have less than a 20 per cent deposit, LMI will likely affect your loan. This guide explains exactly what LMI is, how it is calculated, when it applies, and what your options are. Whether you are a first home buyer, investor, or refinancing, you will find clear, practical answers here to help you make informed decisions about your home loan.
Lenders Mortgage Insurance (LMI) is a one-off insurance premium that protects your lender, not you, if you default on your home loan. It is typically required when your loan to value ratio (LVR) exceeds 80 per cent, meaning you are borrowing more than 80 per cent of the property’s purchase price or valuation.
LMI is not optional for most high LVR loans. Australian lenders use it to manage the increased risk of lending to borrowers with smaller deposits. The insurance is provided by specialist insurers such as Genworth, QBE LMI, or Helia, and the premium is paid by the borrower either upfront or capitalised into the loan balance.
Key point: LMI does not protect you as the borrower. It protects the lender. However, by enabling lenders to approve loans with deposits below 20 per cent, LMI has helped many Australians enter the property market sooner than they otherwise could have.
When you apply for a home loan with an LVR above 80 per cent, your lender will calculate an LMI premium based on your loan amount, deposit size, and the lender’s specific risk pricing. This premium is then added to your loan costs.
You generally have two payment options:
Under the National Consumer Credit Protection Act 2009, lenders must clearly disclose LMI costs in your loan contract and Key Facts Sheet. Always review these documents carefully before proceeding.
LMI generally applies in these situations:
Important exception: Some borrowers may qualify for LMI waivers or exemptions through government schemes, profession-based programs, or guarantor arrangements. We cover these strategies in our guide on how to avoid LMI.
LMI premiums are not fixed. They vary based on several factors:
| Factor | How it affects LMI cost |
|---|---|
| Loan amount | Higher loan amounts generally mean higher LMI premiums |
| Loan to value ratio | The higher your LVR (smaller deposit), the higher the LMI cost |
| Property type | Investment properties often attract higher LMI rates than owner-occupier loans |
| Lender and insurer | Different lenders use different insurers with varying pricing models |
| Occupation | Some professions may qualify for discounted or waived LMI |
Example calculation: On a $600,000 property with a 10 per cent deposit ($60,000), your LVR is 90 per cent. The LMI premium could range from approximately $8,000 to $18,000 depending on the lender and insurer. If you capitalise this into your loan, your starting balance becomes $608,000 to $618,000, and you pay interest on that higher amount.
Use our LMI estimator tool to get a personalised estimate based on your loan details.
LMI is one component of your upfront home buying costs. Understanding how it fits with other expenses helps you plan effectively:
Planning for all these costs together ensures you are not caught short at settlement. Our home buying costs calculator helps you estimate the full picture.
For most owner-occupier home loans, LMI is not tax deductible. The Australian Taxation Office treats LMI as a capital cost of acquiring the property, not an ongoing expense.
However, if you are purchasing an investment property, you may be able to claim the LMI premium as a tax deduction over five years or the life of the loan, whichever is shorter. This is because the expense relates to producing assessable rental income.
Important: Tax rules can be complex and change over time. Always consult a qualified tax professional or accountant to determine how LMI applies to your specific situation. Do not rely solely on general information when making tax decisions.
For detailed strategies on avoiding or reducing LMI, read our dedicated guide: How to Avoid LMI: Strategies to Save on Your Home Loan.
While LMI enables access to home loans with smaller deposits, it is important to understand its limitations:
Understanding these limitations helps you make informed decisions about whether to pay LMI, save for a larger deposit, or explore alternative pathways.
Yes, in certain circumstances. Borrowers with a 20 per cent or larger deposit do not pay LMI. Other pathways include using a guarantor, accessing the First Home Guarantee scheme, or qualifying for a profession-based LMI waiver. Each option has specific eligibility criteria.
Yes. Because LMI increases your loan balance if capitalised, it can slightly reduce your borrowing capacity. Lenders assess your total debt obligations, so a higher starting balance may affect how much they are willing to lend. Discuss this with your broker when comparing loan options.
No. LMI protects the lender if you default. Mortgage protection insurance is optional cover that helps you make repayments if you lose your job, become ill, or pass away. They serve different purposes and are separate products.
Generally no. LMI is a one-off premium that covers the lender for the life of the loan. If you refinance or sell the property, the LMI is not refundable. This is why it is important to consider your long-term plans before deciding whether to capitalise LMI into your loan.
Eligibility depends on factors such as your profession, income level, deposit size, and the lender’s specific policies. A mortgage broker can assess your situation against multiple lenders’ criteria and identify any waivers or exemptions you may qualify for.
This article provides general information only and does not constitute financial, legal, or tax advice. The information is based on Australian lending regulations and industry practices as of April 2026. Lending products, fees, and conditions vary between providers and may change without notice.
Before making decisions about your home loan, consider your personal circumstances and objectives. You should read the relevant Product Disclosure Statement, Target Market Determination, and loan contract, and seek advice from a qualified financial adviser, accountant, or mortgage broker licensed under the National Consumer Credit Protection Act 2009.
Broker360 is a credit representative. Credit Licence Number details available on request. All loans are subject to lender approval, terms, and conditions.
Unsure whether LMI applies to your situation
Our brokers can review your loan scenario, explain your options, and help you find strategies to manage or avoid LMI where possible.
Free initial consultation. Australian Credit Licence details available on request.