What is LMI and how can you avoid paying it?

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If you're buying your first home and haven't saved a 20% deposit yet, there's a good chance someone has mentioned three letters that carry a sting: LMI.

Lenders Mortgage Insurance is one of the least understood costs in the home buying process, and also one of the most misunderstood. Most people know it's expensive. Far fewer understand what it actually covers, why they're the ones paying for it, or how many legitimate ways there are to avoid it entirely.

Here's everything you need to know.

What LMI actually is, and who it actually protects

Let's start with the most counterintuitive fact about LMI: you pay for it, but it doesn't protect you.

Lenders Mortgage Insurance is an insurance policy that protects your lender, the bank, if you default on your home loan and the property sells for less than the outstanding balance. If that happens, the insurer (either Helia, formerly known as Genworth, or QBE, the two main providers in Australia) compensates the lender for the shortfall.

Here's the part that catches people off guard: if the insurer pays out the lender and then wants to recover that money, they can, and often do, pursue the borrower directly. So not only does LMI provide you no protection whatsoever, but in a worst-case scenario you could default, lose your home and still owe money to the insurer.

LMI is not the same as mortgage protection insurance, which is a separate product that actually does protect you, covering repayments in the event of illness, injury or unemployment. They sound similar. They are completely different things.

When does LMI apply?

LMI is triggered when your loan-to-value ratio (LVR) exceeds 80%, meaning your deposit is less than 20% of the purchase price.

The formula is simple:

LVR = Loan Amount ÷ Property Value × 100

So if you're buying a $900,000 property in Sydney and have saved $135,000 (15%), your loan would be $765,000 and your LVR would be 85%, above the 80% threshold, and LMI would apply.

The higher your LVR, the more expensive LMI becomes, and the costs scale up steeply as you approach 95%.

How much does LMI actually cost?

LMI is not a flat fee. It's calculated as a percentage of your loan amount, and that percentage rises sharply as your deposit shrinks. Here's a rough guide based on a $700,000 property purchase:

Deposit	LVR	Approximate LMI cost
$140,000 (20%)	80%	$0, LMI does not apply
$105,000 (15%)	85%	~$8,000 to $12,000
$70,000 (10%)	90%	~$14,000 to $18,000
$35,000 (5%)	95%	~$25,000 to $32,000

Figures are estimates only. Actual LMI costs vary by lender, insurer and individual circumstances.

A few things worth knowing about how LMI is paid:

You can add it to your loan (capitalise it). Most borrowers choose this option. Rather than paying LMI upfront at settlement, the premium gets added to the loan balance and repaid over time. It reduces the immediate cash required, but you'll pay interest on it for the life of the loan, which increases the true total cost.

It's a one-off charge, but it's not transferable. LMI is paid once per loan. However, if you later refinance to a new lender while your equity is still below 20%, you'll pay LMI again with the new lender. This is one of the reasons why refinancing with a small deposit can quickly eat up any savings from getting a better rate, a factor worth discussing with a broker before making the move.

Five ways to avoid paying LMI

1. Save a 20% deposit

The most straightforward path. Once your deposit reaches 20% of the purchase price, you cross below the 80% LVR threshold and LMI disappears. You'll also typically access better interest rates. Lenders price their sharpest rates for borrowers with lower LVRs, and crossing 80% is a meaningful threshold.

The challenge is obvious: in Sydney, 20% of even a modest home often means saving $150,000 to $200,000 or more. For many buyers, particularly younger people renting in expensive suburbs, this is the hardest part of the journey. The strategies below exist precisely because waiting to save a full 20% deposit isn't realistic for everyone.

2. Use a guarantor

A guarantor loan, sometimes called a family pledge or family guarantee, allows a family member (usually a parent) to use the equity in their own home as additional security for your loan. Done correctly, this can eliminate the need for LMI entirely, even if your deposit is under 20%.

Here's how it works in simple terms: instead of your deposit being the only security, the lender also has access to a portion of your guarantor's property value as a backstop. The lender's risk is covered, so LMI isn't required.

Once you've built sufficient equity in your property, usually through a combination of repayments and property value growth, the guarantor is released from the arrangement, and the loan continues in your name alone.

A couple of important points about guarantor loans:

The guarantor takes on real risk. If you can't make repayments, the lender can pursue the guarantor's property. This is not a formality. It's a genuine financial commitment that shouldn't be entered into without careful thought on both sides.
The guarantor doesn't need to go on the loan itself. They're providing security, not taking on the debt. But their own borrowing capacity may be affected while the guarantee is in place.
Most lenders require the guarantor to seek independent legal advice before proceeding, which is sensible for everyone involved.

For families where parents have substantial equity and want to help their children into the market, this can be a powerful and cost-effective strategy. A broker can help structure it correctly.

3. The First Home Guarantee Scheme, a game-changer that many buyers don't know about

This is the one that's changed most significantly in the past 12 months, and it deserves real attention.

The Australian Government's First Home Guarantee (formerly the Home Guarantee Scheme) allows eligible first home buyers to purchase with as little as a 5% deposit and pay zero LMI. The government guarantees the shortfall between your deposit and the 20% threshold, so lenders treat the loan as if it has a 20% deposit, removing the LMI requirement entirely. Importantly, this is not a cash grant. You still borrow 95% of the purchase price. It's a government backstop to the lender.

From 1 October 2025, the scheme became dramatically more accessible:

No income caps. Previously, singles earning over $125,000 and couples earning over $200,000 were excluded. Those limits are now gone entirely. The scheme is open regardless of what you earn.
No limit on places. Previously, a set number of spots were available each year and they regularly ran out. Now all eligible first home buyers can apply.
Higher property price caps. The biggest change for NSW buyers. The Sydney cap increased from $900,000 to $1,500,000, meaning the vast majority of properties in metropolitan Sydney now qualify.

In NSW, the property price caps currently are:

Location	Cap
Sydney & NSW regional centres (incl. Newcastle, Wollongong, Illawarra)	$1,500,000
Rest of NSW	$800,000

To be eligible, you must be an Australian citizen or permanent resident, a genuine first home buyer (not owned property in Australia in the last 10 years), and purchasing as an owner-occupier. You apply through a participating lender. A mortgage broker can confirm which lenders are on the panel and manage the application process on your behalf.

For a first home buyer purchasing a $700,000 property in Sydney with a 5% deposit, this scheme could save approximately $25,000 to $30,000 in LMI that would otherwise have been charged. That's not a small number.

4. Professional LMI waivers

A number of lenders in Australia waive LMI entirely for borrowers working in certain professions, even at LVRs up to 90% or 95%. The eligible professions typically include:

Medical professionals (doctors, surgeons, dentists, specialists)
Legal professionals (solicitors, barristers)
Accountants and finance professionals (CPAs, CAs)
Some lenders extend this to veterinarians, pharmacists and other allied health professionals

The rationale is that these professions carry a low risk of unemployment, typically command high and stable incomes, and tend to have strong long-term borrowing profiles.

Eligibility criteria vary between lenders. Some require membership of a professional association, a minimum income threshold, or a certain number of years post-qualification. A broker who works across multiple lenders is the best person to identify which lenders will waive LMI for your specific profession and whether you qualify.

If you work in one of these fields and are planning to buy with less than a 20% deposit, it's worth exploring this option before assuming LMI is unavoidable.

5. Some lenders waive LMI at 85% LVR

A small number of lenders, particularly online and non-bank lenders, occasionally offer LMI-free borrowing at LVRs up to 85% as a competitive feature. This effectively allows a 15% deposit without the insurance cost, though these products tend to come with slightly different rate structures.

These deals come and go, and availability depends on your borrower profile and the lender's current appetite. A broker who stays across the market will know when these offers exist and whether you'd qualify.

Is it ever worth just paying LMI?

This question deserves an honest answer rather than a reflexive "avoid it at all costs."

In a rising property market, and Sydney has seen significant price growth over many years, there's a genuine case for paying LMI to enter the market earlier rather than waiting another two or three years to save a larger deposit. If a property you can afford today is worth $150,000 more by the time you've saved an extra 5%, the cost of LMI starts to look relatively modest.

That said, with two RBA rate hikes already in 2026 and potentially more to come, borrowing with a small deposit carries more risk than it did a few years ago. Higher rates mean higher repayments, and starting with minimal equity leaves less buffer if property values soften. If LMI is unavoidable, it's worth stress-testing your repayments at a rate 1 to 1.5% higher than your current rate before committing.

The honest answer is that it depends on your financial situation, your timeline, and the market conditions at the time. There's no universal right answer, but it's a decision worth making deliberately, with good advice, rather than by default.

One more thing: stamp duty relief for NSW first home buyers

While we're talking about upfront costs, it's worth briefly flagging that NSW first home buyers may also qualify for stamp duty savings that can be just as significant as avoiding LMI.

Full transfer duty exemption on properties up to $800,000
Concessional (reduced) duty on properties between $800,000 and $1,000,000
A separate $10,000 First Home Owner Grant is available for new and substantially renovated homes under $600,000 (or $750,000 for house-and-land packages)

These schemes can be stacked with the First Home Guarantee, meaning an eligible first home buyer could potentially avoid LMI, pay zero stamp duty and receive the $10,000 grant simultaneously. That's a combined saving that can easily exceed $50,000 in the right circumstances.

Eligibility criteria for each scheme differ, so it's worth verifying your specific situation with a broker before assuming you qualify for everything.

Where to start

If you're trying to figure out whether LMI is avoidable in your situation, the most efficient first step is to speak with a mortgage broker, before you start inspecting properties or making offers. A good broker can tell you quickly whether you'd qualify for the First Home Guarantee, whether your profession qualifies for an LMI waiver, and whether a guarantor arrangement is worth exploring.

And whichever path you take, making sure the underlying loan you end up with has a competitive rate matters just as much as minimising upfront costs.