Estimate Lender’s Mortgage Insurance (LMI)
Use this calculator to estimate your LMI premium, loan-to-value ratio (LVR), and repayment impact.
This is an educational estimate only. Actual LMI premiums vary by lender, insurer, credit policy, and location.
What is mortgage lender’s insurance?
Mortgage lender’s insurance (often called LMI in Australia) is a one-off insurance premium that protects the lender when a borrower has a smaller deposit. It is usually triggered when your loan-to-value ratio (LVR) is above 80%.
In plain English: if you borrow a high percentage of the property value, the lender asks for LMI to reduce their risk. You typically pay the premium either upfront or by adding it to your loan.
How this mortgage lenders insurance calculator works
This calculator estimates your premium in four steps:
- Calculates your base loan amount from property value – deposit.
- Finds your LVR: loan ÷ property value.
- Applies an estimated LMI rate band based on your LVR and loan size.
- Shows repayment impact if you choose to add LMI to the home loan balance.
Typical LVR ranges and what they mean
80% LVR or below
Many borrowers avoid LMI at this level. This usually means a 20% deposit (plus enough cash for costs).
Above 80% to 90% LVR
LMI may apply but is often more manageable than very high LVR tiers. Even a slightly larger deposit can reduce premium noticeably.
90% to 95%+ LVR
Premiums rise faster at these levels. Some lenders have stricter serviceability and policy rules as LVR increases.
How to reduce your LMI cost
- Increase your deposit: even a small boost can move you into a cheaper LVR band.
- Compare lenders: rates and insurer arrangements vary significantly.
- Check first-home programs: some schemes can reduce or remove LMI for eligible borrowers.
- Consider guarantor structures: family guarantee options can reduce upfront LMI in some cases.
- Review property price target: a lower purchase price can improve LVR quickly.
LMI vs PMI: quick comparison
People often compare LMI with U.S.-style PMI (private mortgage insurance). They are similar in purpose—protecting the lender—but differ in fee structure and local lending rules. LMI is commonly a one-off premium in Australia, while PMI is often ongoing monthly insurance in the U.S. until certain equity conditions are met.
Example scenario
Suppose a $750,000 home with a $75,000 deposit. Your base loan is $675,000 and your LVR is 90%. At this level, estimated LMI could be material. If capitalized, your monthly repayment can increase over the life of the loan because you are paying interest on the premium as well.
That does not always make capitalization a bad choice—it can help preserve cash at settlement. The key is understanding the long-term tradeoff between upfront cost and ongoing repayments.
Frequently asked questions
Is LMI refundable?
Usually not in full. Partial refunds may apply in specific circumstances and timeframes, but you should check your lender’s policy.
Does LMI protect me as the borrower?
No. LMI protects the lender, not the borrower. It helps the lender lend at higher LVRs.
Can I avoid LMI with less than 20% deposit?
Sometimes, yes—through specific lender policies, professional packages, government support schemes, or guarantor solutions. Eligibility varies.
Final thoughts
A good mortgage lenders insurance calculator helps you plan before you apply. Use it to test deposit targets, property prices, and repayment outcomes so you can make a more informed borrowing decision. Then confirm your exact numbers with a lender, mortgage broker, or credit adviser before signing a contract.