Lenders Mortgage Insurance (LMI) in Australia: What It Is, How Much It Costs, and How to Avoid It
Everything you need to know about LMI in Australia. Understand how lenders mortgage insurance is calculated, when it applies, typical costs for 2026, and strategies to avoid paying it.
Lenders Mortgage Insurance (LMI): What It Is, How Much It Costs, and How to Avoid It
If you're buying a home with less than a 20% deposit, you'll likely encounter Lenders Mortgage Insurance — one of the most misunderstood costs in Australian property. LMI can add $5,000 to $50,000+ to your purchase, yet many buyers don't know it exists until they're deep in the application process.
This guide explains exactly what LMI is, how it's calculated, and practical strategies to minimise or avoid it entirely.
What Is LMI?
Lenders Mortgage Insurance is an insurance policy that protects the lender (not you) if you default on your home loan and the sale of the property doesn't cover the outstanding debt.
Despite the name, LMI is paid by the borrower. It's a one-off premium, typically added to your loan balance or paid upfront at settlement.
Key Points
- LMI protects the bank, not the borrower
- It's required when your Loan-to-Value Ratio (LVR) exceeds 80% — i.e., you have less than a 20% deposit
- It's a one-off cost (not ongoing)
- It's usually provided by Genworth (now Helia) or QBE in Australia
- It can be capitalised (added to your loan) — meaning you pay interest on it too
When Does LMI Apply?
LMI is triggered by your LVR — the ratio of your loan to the property value:
| Deposit | LVR | LMI Required? |
|---|---|---|
| 20%+ | 80% or less | ❌ No |
| 15–19% | 81–85% | ✅ Yes (lower premium) |
| 10–14% | 86–90% | ✅ Yes (moderate premium) |
| 5–9% | 91–95% | ✅ Yes (highest premium) |
| Under 5% | 95%+ | ❌ Most lenders won't approve |
How Much Does LMI Cost?
LMI premiums vary based on your loan amount, LVR, loan type (owner-occupier vs investor), and the insurer. Here are typical 2026 ranges:
Owner-Occupier Examples
| Property Price | Deposit | LVR | Approx LMI |
|---|---|---|---|
| $600,000 | $60,000 (10%) | 90% | $12,000–$16,000 |
| $600,000 | $90,000 (15%) | 85% | $4,500–$7,000 |
| $800,000 | $80,000 (10%) | 90% | $18,000–$24,000 |
| $800,000 | $120,000 (15%) | 85% | $6,500–$10,000 |
| $1,000,000 | $100,000 (10%) | 90% | $24,000–$32,000 |
| $1,000,000 | $50,000 (5%) | 95% | $40,000–$50,000+ |
Investor Loans
Investor LMI premiums are typically 15–30% higher than owner-occupier premiums because investors are statistically more likely to default.
Why LMI Gets Expensive Fast
LMI premiums increase exponentially as your LVR increases. Going from 85% to 90% LVR doesn't just add 5% more premium — it can double or triple the cost. This is because the lender's risk increases dramatically with each percentage point above 80%.
How LMI Is Calculated
LMI insurers (Helia and QBE) use premium tables based on:
- Loan amount — higher loan = higher premium
- LVR — higher LVR = exponentially higher premium
- Loan purpose — investor loans cost more
- Loan type — interest-only loans may attract higher premiums
- First home buyer status — some insurers offer FHB discounts
The premium is calculated as a percentage of the loan amount, typically ranging from 0.5% to 4.5%.
7 Strategies to Avoid or Reduce LMI
1. Save a 20% Deposit
The most straightforward approach — no LMI is required at 80% LVR or below. For a $700,000 property, that's $140,000.
Tip: Include any genuine savings, gifted deposits (with a statutory declaration), and government grants in your calculation.
2. Use the First Home Guarantee (FHBG)
The Australian Government's First Home Guarantee allows eligible first home buyers to purchase with as little as a 5% deposit with no LMI. The government guarantees the difference between your deposit and 20%.
- Up to 35,000 places per financial year
- Property price caps apply (e.g., $900,000 in Sydney, $700,000 in Melbourne)
- Must be an Australian citizen aged 18+
- Income cap: $125,000 (single) or $200,000 (couple)
3. Family Home Guarantee
Single parents or eligible single legal guardians can purchase with a 2% deposit and no LMI under this scheme.
4. Use a Family Guarantee (Guarantor Loan)
A parent or family member uses equity in their property as additional security for your loan. This allows you to borrow up to 100% of the purchase price + costs without LMI.
Risks: The guarantor's property is at risk if you default. Guarantors should get independent legal advice.
5. Negotiate a Professional Package
Some lenders offer LMI waivers for borrowers in certain professions — typically:
- Medical professionals (doctors, dentists, veterinarians)
- Legal professionals (solicitors, barristers)
- Accountants (CPA/CA qualified)
- Engineers
- Some IT professionals
These borrowers can often borrow up to 90% LVR without LMI.
6. Increase Your Deposit Incrementally
The difference between 88% LVR and 85% LVR can save you $3,000–$8,000 in LMI. Even small deposit increases can have a big impact:
| Property: $700,000 | 90% LVR | 88% LVR | 85% LVR |
|---|---|---|---|
| Deposit needed | $70,000 | $84,000 | $105,000 |
| Approx LMI | $14,000 | $8,000 | $4,500 |
7. Shop Around — LMI Varies Between Lenders
Different lenders use different LMI providers (Helia vs QBE), and their premium tables differ. A mortgage broker can compare LMI costs across lenders to find the most cost-effective option.
Is LMI Always Bad?
Not necessarily. There are scenarios where paying LMI can be a good financial decision:
- Rising market: If property prices are increasing 5–10% per year, waiting 2 years to save a 20% deposit could cost you more in price increases than the LMI itself
- Opportunity cost: Money tied up in a larger deposit isn't earning returns elsewhere
- Rent savings: If you're paying $600/week rent while saving, getting into the market sooner — even with LMI — may be cheaper overall
The calculation depends on your specific circumstances, local market conditions, and how quickly you can save.
Is LMI Refundable?
Partially, in some cases. If you refinance or sell within the first few years, you may be eligible for a partial LMI refund. However:
- Refund policies vary between insurers
- Typically only available within the first 1–2 years
- Must apply through your original lender
- The refund amount decreases over time
- Most borrowers don't qualify or don't know to ask
Key Takeaways
- LMI applies when your deposit is less than 20% — it protects the lender, not you
- Costs range from $4,000 to $50,000+ depending on your loan amount and LVR
- Government schemes (FHBG, Family Home Guarantee) can eliminate LMI entirely
- Professional LMI waivers exist for medical, legal, and accounting professionals
- Even small increases to your deposit can significantly reduce LMI costs
- In a rising market, paying LMI to buy sooner can sometimes be the smarter financial move
Use CREDIGO's free stamp duty calculator and borrowing power calculator to model the total cost of purchasing, including LMI.
CREDIGO provides general information only. This is not financial advice. Consult a licensed mortgage broker or financial adviser before making decisions about your home purchase.