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Refinance home loan calculator

Quickly estimate the impact refinancing could make on your mortgage repayments.

Refinance home loan calculator

% p.a.
$
% p.a.

Current estimated minimum repayment

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New estimated minimum repayment

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Estimated repayment change

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How to use our refinance calculator

Here are the details you’ll need to enter about your existing and refinance home loan.

  1. Current interest rate

    The interest rate you’re currently paying on your existing home loan.

  2. New interest rate

    The interest rate on the home loan you’re refinancing to.

  3. Repayment type

    Whether you’re making principal and interest or interest-only repayments.

  4. Current loan balance

    The outstanding amount on your existing home loan.

  5. Loan term remaining

    The number of years remaining on your current home loan. (Keep in mind that some lenders may default your loan back to 30 years unless you ask them to calibrate the loan to your preferred term or match the remaining time on your existing loan.)

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Once you’ve entered these details, our refinance calculator will give you an estimate of your new home loan repayments and how it compares to your current mortgage. You can choose to see weekly, fortnightly or monthly repayments.

How do you calculate if it’s worth refinancing?

Use the calculator on this page to see if refinancing your home loan is worth it. It will show you how your new mortgage repayments compare to your current home loan and how much you could save.

The interest rate will usually have the biggest impact on whether you’ll stand to benefit by switching loans, but there are other factors like the home loan fees that will contribute to your refinancing costs. These include exit fees, otherwise known as ‘break costs’, as well as other costs like establishment and valuation fees.

Be sure to check the fine print (of both your current and new loan) or speak to a mortgage broker if you’re unsure which fees may apply to your situation.

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We surveyed over 1,000 Australians to find out how much their interest rate would need to drop before they’d consider refinancing.

A third (33.2%) said they’d refinance if the rate was at least 1% lower, while almost a quarter (23.1%) said a 0.50% drop would be enough. Meanwhile, 21.6% wanted a 0.75% decrease, and 9.8% said they’d switch lenders for just 0.25% cheaper. The remainder either didn’t know their current rate or weren’t actively managing their home loan.

An example of how much you can save by refinancing

This table shows how much your repayments could potentially change by refinancing to a new home loan.

Current home loan - 6.00% interest rate

Home loan amount

$400,000

Estimated monthly repayments

$2,461

Estimated monthly savings

New home loan - 5.50% interest rate

Home loan amount

$400,000

Estimated monthly repayments

$2,336

Estimated monthly savings

$125

Current home loan - 6.00% interest rate

Home loan amount

$600,000

Estimated monthly repayments

$3,691

Estimated monthly savings

New home loan - 5.50% interest rate

Home loan amount

$600,000

Estimated monthly repayments

$3.504

Estimated monthly savings

$187

Current home loan - 6.00% interest rate

Home loan amount

$800,000

Estimated monthly repayments

$4,921

Estimated monthly savings

New home loan - 5.50% interest rate

Home loan amount

$800,000

Estimated monthly repayments

$4,672

Estimated monthly savings

$249

Current home loan - 6.00% interest rate

Home loan amount

$1,000,000

Estimated monthly repayments

$6,151

Estimated monthly savings

New home loan - 5.50% interest rate

Home loan amount

$1,000,000

Estimated monthly repayments

$5,840

Estimated monthly savings

$312

Home loan amountEstimated monthly repaymentsEstimated monthly savings

Current home loan - 6.00% interest rate

$400,000

$2,461

New home loan - 5.50% interest rate

$400,000

$2,336

$125

Current home loan - 6.00% interest rate

$600,000

$3,691

New home loan - 5.50% interest rate

$600,000

$3.504

$187

Current home loan - 6.00% interest rate

$800,000

$4,921

New home loan - 5.50% interest rate

$800,000

$4,672

$249

Current home loan - 6.00% interest rate

$1,000,000

$6,151

New home loan - 5.50% interest rate

$1,000,000

$5,840

$312

This example is based on an owner-occupier home loan over 28 years with principal & interest repayments. Other fees and charges applied by lenders would also affect the repayment amount.

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Our analysis of more than 20,000 home loan requests found that most owner-occupiers refinancing were joint applicants (61%), with the remaining 39% applying individually. Joint borrowers tended to refinance more expensive properties, with an average price of $1,263,856 – around 33.5% higher than the $946,875 average for individual borrowers.

Among investors refinancing their home loans, applications were fairly evenly split between individual and joint borrowers. Joint investors refinanced higher-value properties on average, at $1,131,220 – around 19.9% more than the $943,567 average for individual investors.

Home loans guides & resources

What's the next step on your property journey? Our home loan guides will help you navigate the road ahead, whether you're buying, building or looking to save on an existing loan.

Looking to refinance to a lower rate?

See a selection of low-rate home loans for owner-occupiers looking to refinance. Estimated repayments are based on a loan amount of $500k over 30 years.

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Rates updated 03 July 2026

Important Disclosures
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Laboratories Credit Union Simple Home Loan Owner Occupied

Interest rate

5.69%

per annum (variable)

Comparison rate

5.71%

per annum

App Fee: $200

Max LVR 95%

Compare now
on Money.com.au
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South West Slopes Bank Intro Discounted Standard Variable Home Loan

Interest rate

5.70%

per annum (variable)

Comparison rate

6.06%

per annum

Redraw

Offset

Max LVR 90%

Compare now
on Money.com.au
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Pacific Mortgage Group Owner Occupied Variable Home Loan

Interest rate

5.84%

per annum (variable)

Comparison rate

5.84%

per annum

Redraw

Max LVR 80%

Compare now
on Money.com.au
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Virgin Money Lite Home Loan Variable

Interest rate

5.84%

per annum (variable)

Comparison rate

5.86%

per annum

Redraw

Split Loan

Max LVR 80%

Compare now
on Money.com.au
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Gateway Bank Green Plus Home Loan

Interest rate

5.85%

per annum (variable)

Comparison rate

6.14%

per annum

Redraw

Offset

Max LVR 80%

Compare now
on Money.com.au

FAQs about calculating refinance costs

It’ll cost you roughly $500-$2,000 to refinance a home loan in Australia. The actual amount it’ll cost to refinance depends on whether you’re refinancing to a new lender or just changing loans with your current lender. There are usually fees involved in switching, so make sure the new loan will save you money in the long run.

In most cases, a 1% drop in your interest rate makes refinancing worth it. For example, if you go from a 6.99% rate to 5.99%, you could save about $465 per month. This is based on a $600,000 owner-occupier home loan making principal and interest repayments with a 25-year term. This monthly saving adds up to roughly $5,580 a year.

While our refinance calculator is useful, it doesn’t cover everything. It doesn’t factor in the benefits of an offset account, savings from extra repayments, or the flexibility of a redraw facility. It also doesn’t account for factors like customer service quality and the ease of using banking apps, which might be important to you.

The best time to refinance your home loan is when you can get a lower interest rate that offsets the costs of switching. It’s also ideal when your financial situation improves, your credit score rises, or you want better loan terms. Additionally, refinancing is common among borrowers when interest rates drop or you’ve built up more equity in your home. Using a mortgage broker to refinance can also be a way of finding a better deal.

You’ll usually be in the best position to refinance if you have at least 20% equity in your home. For instance, if your home is worth $600,000, you’ll only owe $480,000 on your home loan. Having at least 20% in equity helps you qualify for better loan terms and avoid paying lender’s mortgage insurance (LMI).

Money.com.au analysed thousands of owner-occupiers refinancing their home loans and found the average equity to be $573,725. With an average property price of $1,139,808, this means the typical loan-to-value ratio (LVR) is just under 50%. Meanwhile, investors refinancing averaged $449,550 in equity on an average property price of $1,036,948 (56% LVR).

Important Disclosures

Home loan comparison rates are calculated based on a loan amount of $150,000 repaid over a 25-year term with monthly repayments. The comparison rates only apply to the examples given. Different loan 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. Check with the provider for full loan details, including rates, fees, eligibility and terms and conditions to make sure the product is right for you.

General information only The information on this page is general in nature and has been prepared without considering your objectives, financial situation or needs. You should consider whether the information provided and the nature of any home loan product is suitable for you and seek independent financial advice if necessary.

We are not providing you with a recommendation or suggestion about a particular home loan. You should read the relevant disclosure statements or other offer documents before deciding whether to apply for or continue to use a particular product.

What products, features and information are shown While we make every effort to ensure all home loans available in Australia are shown in our comparison tables, we do not guarantee that all products are included.

Our product comparisons may not compare all home loan features and attributes relevant to you.

Product information, such as interest rates, fees and charges, is subject to change without notice. Before acting on any information, you should confirm the relevant product information with the lender.

How home loans are sorted and filtered by default When results load initially in the main comparison table on this page, we show relevant loans from our sponsored partners first, then all loans on our database starting with the lowest relevant rate available from each of Australia's top 10 largest lenders first (top 10 is according to APRA, based on total value of loans per lender). We know these are the rates our customers are most interested in seeing. After these initial results, we show all products on our database, sorted as follows:

    circle-green-tick
  • Lowest regular repayment amount, then;
  • circle-green-tick
  • Loans interest rate, then;
  • circle-green-tick
  • Lowest comparison rate, then;
  • circle-green-tick
  • Provider name (A-Z)

Some home loan products listed in our tables are available through a mortgage broker. Mortgage brokers may not be able to offer loans from every provider and there may be more suitable loans for your personal circumstances.

Mortgage brokers are not authorised by Money Pty Ltd's Australian Credit Licence and operate under their own Australian Credit Licence, or as a credit representative of another Australian Credit Licensee. Mortgage brokers can make recommendations about home loan products that may suit your objectives, financial situation and needs.

Our tables feature all home loans available from lenders on our database that match the search criteria selected. Lenders do not pay to feature in our tables. Partner lenders with loans marked as ‘sponsored’ may pay a commission to Money.com.au if you click to visit their website.

If you get help from a mortgage broker as a result of visiting this page, we may earn a commission.

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WE GIVE A BUCK®

The calculator provided on money.com.au is intended for informational and illustrative purposes only. The results generated by this calculator are based on the inputs you provide and the assumptions set by us. These results should not be considered as financial advice or a recommendation to buy or sell any financial product. By using this calculator, you acknowledge and agree to the terms set out in this disclaimer. For more detailed information, please review our full terms and conditions on the website.

Assumptions:

  • The calculations do not account for changes in interest rates or other market conditions that may occur.
  • Results are approximations and may differ from actual payment schedules or amounts.
  • The calculator does not include all fees and charges that you may incur in relation to a financial product.

Limitation

  • This calculator does not guarantee the availability of any financial product or the accuracy of the calculations. Please consult a financial advisor or the relevant product provider to obtain specific advice tailored to your circumstances.
  • money.com.au does not accept any liability for errors or omissions, or for any loss you may suffer as a result of relying on these calculations.

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© Copyright 2026 Money Pty Ltd.
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