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Why First-Time Buyers Should Understand Mortgage Insurance

By Coposit
27/11/2025

Buying your first home is exciting. But it also comes with new terms and costs you may not have seen before. One of the most important is mortgage insurance. Understanding it can save you money and help you plan a smarter path into the property market.

This guide breaks down what mortgage insurance is, why lenders require it, and how first home buyers can reduce or avoid the cost.

What is mortgage insurance

Mortgage insurance protects the bank, not the buyer.If a borrower cannot repay their loan, the insurer covers the lender’s loss.

For most Australian buyers, this is called:

  • Lenders Mortgage Insurance (LMI)

It is a one-off cost added when you borrow more than a certain percentage of the property value.

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When does LMI apply

Most banks charge LMI when:

  • Your deposit is less than 20% of the property price

Example:If the property is $700,000 and you have a $35,000 deposit (5%), the lender takes on more risk.LMI is added to the loan to protect the bank.

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How much does LMI cost

The cost depends on:

  • Property price
  • Deposit size
  • Loan type

The lower your deposit, the higher the LMI.It can sometimes be tens of thousands of dollars for first home buyers.

This is why buyers work hard to reach a 20% deposit — to avoid paying LMI altogether.

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Why lenders require it

LMI exists because:

  • Small deposits create higher loan-to-value ratios (LVR)
  • Higher LVRs mean more risk for the lender
  • LMI reduces the bank’s exposure to loss

It allows banks to lend to buyers with smaller deposits — but at a cost.

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Why first-time buyers must understand it

Knowing how LMI works helps buyers:

  • Make clearer decisions about how much to save
  • Weigh up the trade-off between buying sooner vs paying more
  • Understand what they are actually being charged for
  • Choose a strategy that protects long-term financial health

Making an informed decision avoids surprises later.

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How first home buyers can reduce or avoid LMI

There are a few smart ways to minimise the cost:

  • Grow your deposit to 20%
  • Use government schemes that allow low-deposit loans with no LMI
  • Buy off the plan to gain time to save while the home is built
  • Start with a lower-priced property and upgrade later
  • Look for lenders offering lower LMI premiums

Saving even a little more can make a big difference.

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Understanding LMI helps you choose a better buying strategy

First home buyers often feel pressure to enter the market as soon as possible. But rushing without knowing the cost of LMI can lead to paying more over the long term.

When you know how mortgage insurance works, you can:

  • Plan your deposit size more effectively
  • Decide whether to buy now or wait
  • Compare savings vs convenience
  • Take control of your financial future

Owning a home should feel empowering, not confusing.A little knowledge today can protect your savings tomorrow.

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