Summary
Lenders Mortgage Insurance (LMI) is a one-off insurance premium paid by the borrower that protects the lender — not the borrower — if the borrower defaults and the property sells for less than the outstanding loan — LMI is typically required when your deposit is less than 20% of the property value, meaning your Loan-to-Value Ratio (LVR) exceeds 80%; the cost ranges from approximately 1% to 6.5% of the loan amount depending on the LVR and loan size; on a $500,000 property with a 5% deposit, LMI can cost $15,000-$20,000 or more. Understanding What is LMI Australia is essential for borrowers.
The borrower pays LMI but receives no protection from it — this is the most commonly misunderstood aspect of LMI; if you default and the property sells at a loss, the LMI insurer (either Helia, formerly Genworth, or QBE) compensates the lender for the shortfall; the insurer can then pursue you, the borrower, to recover what it paid out; LMI does not protect you from losing your home or from debt recovery
There are four main ways to avoid LMI — save a 20% deposit; use a family guarantor; access the Australian Government’s First Home Guarantee (eligible first home buyers with 5% deposit); or qualify for a professional LMI waiver (available at some lenders for medical professionals, lawyers, accountants and engineers); each approach has different eligibility requirements and trade-offs
LMI is one of the most significant costs in the Australian home-buying process — and one of the most misunderstood. Many buyers assume it protects them; it does not. Many assume it can be avoided by saving a larger deposit; it can — but only if you reach the 20% threshold. Understanding exactly how LMI works, what it costs and how to avoid it is one of the most useful things a first home buyer can do before signing a loan contract.
What is LMI?
Lenders Mortgage Insurance is an insurance policy taken out by the lender — and paid for by the borrower — to protect the lender against the risk of financial loss if the borrower defaults on their home loan and the property sells for less than the outstanding loan balance. To understand What is LMI Australia is crucial for any potential home buyer.
In plain terms: If your deposit is less than 20% of the property value, most lenders will require you to pay a one-off LMI premium before they will approve your loan. This premium goes to an insurance company (Helia or QBE in Australia) that guarantees the lender against a shortfall if you cannot repay and the property is sold at a loss.
What LMI does not do: LMI does not protect you as the borrower. It does not prevent your lender from pursuing you for any remaining debt after a default and property sale. The LMI insurer compensates the lender — and then has the right to pursue you to recover that payment.
When does LMI apply?
LMI is typically required when your Loan-to-Value Ratio (LVR) exceeds 80% — that is, when your deposit is less than 20% of the property’s value.
LVR calculation: LVR = Loan amount ÷ Property value × 100
Example: Property worth $700,000. Deposit of $70,000 (10%). Loan = $630,000. LVR = $630,000 ÷ $700,000 × 100 = 90% LVR — LMI required.
Example: Property worth $700,000. Deposit of $140,000 (20%). Loan = $560,000. LVR = $560,000 ÷ $700,000 × 100 = 80% LVR — LMI not required.
Some lenders have slightly different thresholds — a small number require LMI from 85% LVR; most use 80%. Check with your lender or broker.
Who provides LMI in Australia?
There are two main LMI providers in Australia:
- Helia (formerly Genworth Australia) — the largest LMI provider
- QBE — the second major provider
Your lender chooses which insurer to use — borrowers do not select their LMI provider.
How much does LMI cost?
LMI premiums are calculated as a percentage of the loan amount (not the property value) and increase with both the loan size and the LVR. The higher your LVR and the larger your loan, the higher the premium as both a dollar amount and as a percentage.
Indicative LMI costs (NSW examples, based on Westpac’s calculator):
| Property value | Deposit | LVR | Approximate LMI |
|---|---|---|---|
| $500,000 | 5% ($25,000) | 95% | ~$15,752 |
| $500,000 | 10% ($50,000) | 90% | ~$13,227 |
| $1,000,000 | 10% ($100,000) | 90% | ~$26,000+ |
| $1,500,000 | 5% ($75,000) | 95% | ~$65,555 |
| $1,500,000 | 10% ($150,000) | 90% | ~$60,519 |
Figures are indicative only and vary by lender, state, loan purpose and insurer. Get an exact quote from your lender or broker.
CommBank (as a broad guide): LMI can range from 1% to 5% of the loan amount. On a $500,000 loan with a 10% deposit, LMI could exceed $10,000.
NAB: LMI can cost up to 6.5% of the loan amount.
LMI costs are also subject to stamp duty and GST in most states — included in the quoted LMI figure.
How is LMI paid?
LMI is typically a one-off premium paid at settlement. There are two ways to pay it:
1. Upfront (cash at settlement): The full premium is paid at the time of settlement. No ongoing cost.
2. Capitalised onto the loan: The premium is added to your loan balance and paid off over the life of the loan — the most common approach. This increases your loan amount and means you pay interest on the LMI premium for the life of the loan, making the total cost higher than the headline premium figure.
Example: LMI premium of $15,000 capitalised onto a $475,000 loan at 6.5% interest over 30 years adds approximately $28,000-$32,000 in total interest — significantly more than the face value of the premium.
Is LMI tax deductible?
Investment properties: LMI is tax deductible as a borrowing expense for investment home loans — deducted over five years or the life of the loan (whichever is shorter). Confirm with a registered tax agent.
Owner-occupier properties: LMI is not tax deductible for owner-occupied homes.
Does LMI apply when refinancing?
Yes — LMI can apply when refinancing, not just when purchasing. If your LVR is still above 80% at the time you refinance (because you have not yet built sufficient equity), your new lender may require LMI. In some cases, existing LMI may be transferable to a new lender — check with your broker.
How to avoid LMI
Option 1 — Save a 20% deposit
The most straightforward approach. Reach a deposit of 20% or more and most lenders will not require LMI. The challenge is time — in Sydney (median house price approximately $1.5 million), saving 20% ($300,000) can take many years.
Option 2 — First Home Guarantee (Australian Government)
The Australian Government’s First Home Guarantee (formerly the First Home Loan Deposit Scheme) allows eligible first home buyers to purchase with as little as a 5% deposit without paying LMI — the Government guarantees the gap between your deposit and the 20% threshold.
Key eligibility (as of October 2025):
- Australian citizen or permanent resident aged 18+
- First home buyer (or have not owned property in Australia in the last 10 years)
- Property price within the scheme’s price caps (varies by location)
- 35,000 places per financial year — released from 1 July; first-come, first-served through participating lenders
Important 2025 change: Income caps ($125,000 single / $200,000 couple) were removed from 1 October 2025 — the scheme is now open to all eligible first home buyers regardless of income.
Related schemes:
- Regional First Home Buyer Guarantee: Same structure for eligible regional areas
- Family Home Guarantee: Single parents or legal guardians with a 2% deposit and no LMI
Option 3 — Family guarantor
A family member (typically a parent) offers equity in their own property as additional security — reducing your effective LVR below 80% without requiring a 20% cash deposit. LMI is not required when a guarantor is in place. The guarantor’s property is at risk if you default — this is a significant commitment that both parties should understand fully before proceeding.
Option 4 — Professional LMI waiver
Some lenders offer LMI waivers for borrowers in certain professions — typically at LVRs up to 90% (some up to 95%) without LMI. Eligible occupations vary by lender but commonly include:
- Medical professionals (doctors, dentists, specialists)
- Legal professionals (solicitors, barristers)
- Accountants (CPAs and CAs)
- Engineers
Eligibility requirements and LVR limits vary by lender — consult a mortgage broker to identify which lenders offer waivers for your specific profession and loan amount.
LMI vs Mortgage Protection Insurance — the difference
| LMI | Mortgage Protection Insurance (MPI) | |
|---|---|---|
| Who it protects | The lender | The borrower |
| Who pays | The borrower | The borrower |
| When it pays out | If borrower defaults and property sells at a loss | If borrower cannot repay due to illness, disability, job loss or death |
| Is it compulsory? | Yes (when LVR >80%) | No — optional |
LMI and MPI are entirely separate products. LMI is compulsory when triggered by LVR; MPI is an optional additional insurance the borrower can take out to protect their own income and mortgage repayments.
Frequently asked questions
What is LMI in Australia?
Lenders Mortgage Insurance — a one-off insurance premium paid by the borrower that protects the lender if the borrower defaults and the property sells for less than the outstanding loan. Required when your deposit is less than 20% of the property value (LVR above 80%).
Does LMI protect me as a borrower?
No — LMI protects the lender. If you default and the property sells at a loss, the insurer compensates the lender — and can pursue you to recover that amount.
How much does LMI cost in Australia?
Approximately 1% to 6.5% of the loan amount, depending on the LVR and loan size. On a $500,000 property with a 5% deposit, LMI can cost $15,000 or more. Get an exact quote from your lender or broker.
Can I avoid LMI?
Yes — by saving a 20% deposit, using the First Home Guarantee (5% deposit, no LMI, 35,000 places per year, no income cap since October 2025), using a family guarantor, or qualifying for a professional LMI waiver.
Is LMI tax deductible?
For investment properties, yes — as a borrowing expense over five years or the loan term. For owner-occupied homes, no. Confirm with a registered tax agent.
Can I add LMI to my home loan?
Yes — LMI can be capitalised onto your loan balance rather than paid upfront at settlement. This increases your loan amount and means you pay interest on the premium over the life of the loan.
Related guides
- What is stamp duty in Australia? →
- How to build a credit score in Australia →
- How to open a bank account in Australia →
- What is superannuation? →
This guide is for general information only and does not constitute financial, mortgage or legal advice. LMI costs, eligibility requirements and government scheme terms change — always verify with your lender, broker or a registered financial adviser. Last updated September 2026.
Sources: money.com.au — Lender’s Mortgage Insurance Guide 2026 (1 week ago) | jmdmortgages.com.au — LMI Explained: Costs and How to Avoid It 2026 (March 24, 2026) | NAB — How Lenders Mortgage Insurance (LMI) works (nab.com.au official) | CommBank — Lenders Mortgage Insurance (commbank.com.au official) | propertycalchub.com — LMI Australia 2026 | strawberryfinance.com.au — Lenders Mortgage Insurance Perth 2026 (July 28, 2026) | financenest.au — Lender Mortgage Insurance Explained Australia | kowlooninvestments.com — LMI Perth 2026 (July 8, 2026)
