The number one mortgage mistake

By Rebeccah Elley · · 2 min read
Fact Checked
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Home loan loyalty is costing Australian mortgage holders a whopping $6 billion a year, according to new research from comparison site Mozo.com.au.

Despite a surge in smaller lenders offering mortgage rates under 4.00%, borrowers are wasting $17 million a day by sticking with big bank lenders instead of switching to a cheaper home loan.

“The most expensive mistake the average borrower could make is sticking with the same loan over a 25 to 30 year period, says Mozo Director Kirsty Lamont.

“You’re paying a lazy tax and missing out on thousands of dollars in switching savings.”

“Refinancing to a new home loan only takes a few hours and the savings that can be made are significant - it could be the easiest couple of thousand dollars you make this year.”

Mozo may receive payment if you click products on our site. We don’t compare the entire market, but you can compare more home loans here.
Last updated 5 December 2025 Important disclosures and comparison rate warning*
What are your home loan needs?
Loan purpose
Buying or Refinancing
  • Promoted

    Unloan Variable Home Loan

    • Owner occupier
    • Principal & Interest
    • 20% min deposit
    • Redraw available
    Interest rate
    5.19 % p.a.
    Variable
    Comparison rate
    5.10 % p.a.
    Initial monthly repayment
    $2,742
    Go to site
    • The first home loan with an automatic loyalty discount (conditions apply)
    • No application or banking fees
    • Built by CommBank

  • First Home Buyer Loan

    • Owner occupier
    • Principal & Interest
    • 5% min deposit
    • For first home buyers
    • Offset available
    • Redraw available
    Interest rate
    4.99 % p.a.
    Variable
    Comparison rate
    5.04 % p.a.
    Initial monthly repayment
    $2,681
    Go to site
    • Competitive interest rate – 4.99% p.a. (comparison rate* 5.04% p.a.)
    • Offset account to reduce interest and save on repayments
    • No establishment or monthly fees, plus valuation fees waived up to $1,000 (limited time)

  • Fixed Rate Home Loan

    • Fixed rate
    • Owner occupier
    • Principal & Interest
    • 5% min deposit
    Interest rate
    5.09 % p.a.
    Fixed 2 years
    Comparison rate
    5.43 % p.a.
    Initial monthly repayment
    $2,712
    Go to site
    • No ongoing annual fees
    • Make up to $25,000 extra repayments during a fixed period, fee free (T&Cs apply)
    • Lock in for up to 5 years.

  • Unloan Variable Home Loan

    • Owner occupier
    • Principal & Interest
    • 20% min deposit
    • Redraw available
    Interest rate
    5.19 % p.a.
    Variable
    Comparison rate
    5.10 % p.a.
    Initial monthly repayment
    $2,742
    Go to site
    • The first home loan with an automatic loyalty discount (conditions apply)
    • No application or banking fees
    • Built by CommBank

  • Discount Great Rate Home Loan

    • Owner occupier
    • Principal & Interest
    • 20% min deposit
    • Redraw available
    • Cashback
    Interest rate
    5.19 % p.a.
    Variable
    Comparison rate
    5.20 % p.a.
    Initial monthly repayment
    $2,742
    Go to site
    • Get up to $3,000 cashback when you apply online (T&Cs apply)
    • No paperwork or payslips required (see site for details)
    • Low variable rate

  • Variable Home Loan 90

    • Owner occupier
    • Principal & Interest
    • 10% min deposit
    • Offset available
    • Redraw available
    Interest rate
    5.29 % p.a.
    Variable
    Comparison rate
    5.33 % p.a.
    Initial monthly repayment
    $2,773
    Go to site
    • No monthly or ongoing fees
    • Option to add an offset for 0.10% p.a.

  • Offset Home Loan

    • Owner occupier
    • Principal & Interest
    • 40% min deposit
    • Offset available
    • Redraw available
    Interest rate
    5.39 % p.a.
    Variable
    Comparison rate
    5.42 % p.a.
    Initial monthly repayment
    $2,805
    Go to site
    • No ongoing monthly loan maintenance fees to pay.
    • Pre-approval valid for 3 months
Showing 6 results from 380 home loans. Use the filters to see more

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Here are Lamont’s three top tips for getting a better home loan deal:

1. Compare your rate with the best on market

“Look beyond the big four banks to find the best value. Smaller non-bank and online lenders like loans.com.au, UBank and Newcastle Permanent offer some of the lowest home loan rates in the market”, says Lamont.

To research the best value home loans, use a reputable comparison website like Mozo.com.au to compare home loans side by side and avoid wasted hours spent visiting each lender’s website.

2. See if you're up for any switching costs

Once you’ve compared the best rates to find out how much you can save by switching, Lamont says the next step is to work out any costs involved in refinancing.

“You might be charged a discharge fee from your current lender or an upfront fee by the provider you’re switching to. In most cases however, the savings to be made by switching will outweigh any refinancing costs.”

3. Choose a loan with flexible features

Lamont’s last piece of advice is to create a shortlist of the types of features you would like in your new loan.

“Features like an extra repayments facility and offset account can help you to pay down your home loan faster and save even more on interest charges,” adds Lamont.

Want to see if you can save thousands on your home loan?

Mozo compares more than 80 lenders to help you find the best value home loan for your needs. Compare now >>

* WARNING: This comparison rate applies only to the example or examples given. Different amounts and terms will result in different comparison rates. Costs such as redraw fees or early repayment fees, and cost savings such as fee waivers, are not included in the comparison rate but may influence the cost of the loan. The comparison rate displayed is for a secured loan with monthly principal and interest repayments for $150,000 over 25 years.

** Initial monthly repayment figures are estimates only, based on the advertised rate. You can change the loan amount and term in the input boxes at the top of this table. Rates, fees and charges and therefore the total cost of the loan may vary depending on your loan amount, loan term, and credit history. Actual repayments will depend on your individual circumstances and interest rate changes.

^See information about the Mozo Experts Choice Home Loan Awards

Mozo provides general product information. We don't consider your personal objectives, financial situation or needs and we aren't recommending any specific product to you. You should make your own decision after reading the PDS or offer documentation, or seeking independent advice.

While we pride ourselves on covering a wide range of products, we don't cover every product in the market. If you decide to apply for a product through our website, you will be dealing directly with the provider of that product and not with Mozo.

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