Australia does not really have “private mortgage insurance”: the equivalent product here is Lenders Mortgage Insurance (LMI), which protects the lender rather than the borrower and is generally payable when a home loan exceeds 80 percent of the property’s value. Understanding how LMI actually works in this market matters, because most explanations of PMI describe United States rules that do not transfer.
This guide explains what the PMI label means locally, when lenders charge the insurance, how the premium is paid, who underwrites it and where the common US-based misconceptions break down.
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What PMI means in Australia
The phrase Private Mortgage Insurance describes insurance a lender takes out against borrower default, common in the American market. In Australia the same role is filled by LMI. The purpose is identical in one direction only: it compensates the lender if the borrower defaults and the property sale does not cover the debt. It offers the borrower no protection.
When lenders charge it
Lenders commonly require LMI when the Loan-to-Value Ratio (LVR) sits above 80 percent, meaning the deposit is under 20 percent. Borrowing $400,000 against a property valued at $500,000 gives an LVR of exactly 80 percent. This threshold is standard lender policy rather than a legal requirement, and individual lenders set their own rules; some also require LMI on low-documentation loans at lower LVRs.
How the premium works
Unlike US mortgage insurance billed as a monthly instalment, Australian LMI is normally a one-off premium charged when the loan settles. Borrowers either pay it upfront or add it to the loan balance, where it accrues interest alongside the principal for the life of the loan.
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The US-style cancellation rules do not exist here. There is no automatic removal once the balance falls to 78 percent of the original value, and paying down the loan early does not refund the premium. If you refinance above the same LVR threshold, a fresh premium can apply, so factor that into any switch.
What it costs
Premiums scale with the loan amount, the LVR band, the loan purpose and the property type, so a percentage figure borrowed from US sources will mislead. Insurers publish premium tables and lenders can quote the exact cost for a specific scenario before application, which is the only number worth planning around.
Who underwrites it
Two insurers write most Australian LMI. Helia previously traded as Genworth, and QBE is the other major writer. Their premium rates and coverage terms are revised periodically, so treat any figure more than a few months old as indicative and request a current quote.
Weighing the trade-off
Paying LMI lets borrowers buy sooner with a smaller deposit, which can beat years of rent while saving a 20 percent buffer. Against that sits the reality that the insurance protects only the lender and adds thousands to the loan without being recoverable. Guarantor arrangements and government schemes that reduce deposit requirements are alternatives worth checking before accepting the premium.
Managing the cost
Deposit size moves the cost more than anything else: trimming the loan by even one LVR band can cut the premium materially. Whether to pay the premium upfront or capitalise it is likewise a cash-flow decision, and the right choice depends on savings, other debts and how long you expect to hold the loan. Your repayment history and credit score matter for approval, but the premium itself follows the loan size and LVR, not your rating. Compare quotes across lenders because some will lend to 85 or 90 percent without LMI under their own policies, and weigh the total cost across different loan terms before committing.
If you are assessing a purchase now, ask for written LMI quotes covering both payment options and compare the total payable over the expected holding period. That single comparison turns an opaque fee into a decision you can defend.
