Money

Home Loan Rate Change Calculator

Use our Home Loan Rate Change Calculator to see how your repayments could be affected by a higher or lower interest rate.

Calculate your rate change
% p.a.
% p.a.
$

New Interest Rate: 6.25% 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 rate change calculator

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

  1. Current interest rate

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

  2. Repayment type

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

  3. Interest rate change

    The percentage change in your interest rate - either an increase or decrease.

  4. Current loan balance

    The amount you owe on your home loan.

  5. Loan term

    The number of years left on your home loan (typically 25 or 30 years, though some lenders now offers 40-year mortgages)

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Once you’ve entered these details, our rate change calculator will give you an estimate of your current and new minimum repayments. It’ll also give you the estimated repayment change. You can choose to see weekly, fortnightly or monthly repayments.

How much will a rate increase affect my mortgage?

If you have a variable rate home loan and your lender raises its rates, your minimum repayments will go up. With a fixed rate mortgage, your repayments won’t change until the end of the fixed term. To see how a rate increase will affect your mortgage, use the calculator on this page to check the difference in your repayments.

Generally a rate change won’t change your regular repayment by a large amount, but over time an increase could mean paying significantly more interest overall. If your rate changes, it might be a good time to consider refinancing your home loan to a cheaper rate.

What about if interest rates drop?

If interest rates drop, the impact it’ll have on your mortgage depends on the type of loan you have. With a variable rate loan, your repayments will go down as your lender drops its rates. But, with a fixed rate loan, your repayments will stay the same for the fixed period (i.e. one to five years).

Home loan rate change example

This table estimates how much a 0.25% rate change will affect your home loan repayments.

Loan amount

$400,000

Interest rate

6.50%

Estimated monthly repayments

$2,701

Rate & repayment increase

  • +0.25% (6.75%)
  • +$63

Rate & repayment decrease

  • -0.25% (6.25%)
  • -$62

Loan amount

$600,000

Interest rate

6.50%

Estimated monthly repayments

$4,052

Rate & repayment increase

  • +0.25% (6.75%)
  • +$94

Rate & repayment decrease

  • -0.25% (6.25%)
  • -$93

Loan amount

$800,000

Interest rate

6.50%

Estimated monthly repayments

$5,402

Rate & repayment increase

  • +0.25% (6.75%)
  • +$126

Rate & repayment decrease

  • -0.25% (6.25%)
  • -$124

Loan amount

$1,000,000

Interest rate

6.50%

Estimated monthly repayments

$6,753

Rate & repayment increase

  • +0.25% (6.75%)
  • +$157

Rate & repayment decrease

  • -0.25% (6.25%)
  • -$156
Loan amountInterest rateEstimated monthly repaymentsRate & repayment increase Rate & repayment decrease

$400,000

6.50%

$2,701

  • +0.25% (6.75%)
  • +$63
  • -0.25% (6.25%)
  • -$62

$600,000

6.50%

$4,052

  • +0.25% (6.75%)
  • +$94
  • -0.25% (6.25%)
  • -$93

$800,000

6.50%

$5,402

  • +0.25% (6.75%)
  • +$126
  • -0.25% (6.25%)
  • -$124

$1,000,000

6.50%

$6,753

  • +0.25% (6.75%)
  • +$157
  • -0.25% (6.25%)
  • -$156

This example is based on an owner-occupier home loan over 25 years with principal & interest repayments. Other fees and charges applied by lenders would also affect the repayment amount.

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 save on interest with 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 12 June 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 interest rate changes

There isn’t a simple answer to this question as it depends on multiple factors. Sometimes rates may remain unchanged for months or even years. At other times, they can change several times within a single month.

Interest rates on home loans can change based on adjustments to the cash rate, which almost always leads lenders to adjust their rates. Lenders may also change rates to cover their operating costs, make their loans more competitive, increase their profit margins to keep shareholders happy, or in response to global economic conditions.

A 1% increase to your interest rate will result in higher mortgage repayments. For example, if your rate moves from 5.50% to 6.50% on a $600,000 home loan, it’ll add another $385 to your monthly repayments. This is based on an owner-occupier loan making principal and interest repayments over 30 years.

In recent years, the RBA has typically raised the cash rate by 0.25% (25 basis points) at a time. So, if there were a 1% increase, it would usually happen gradually over several adjustments. For example, since 2020, the RBA has increased the cash rate nine times by 0.25%, and only four times by 0.50%. It’s worth noting that factors other than changes to the cash rate can also influence lenders to raise their rates.

If interest rates increase, your mortgage repayments will typically move in the same direction. Rate changes will only affect variable rate loans, not fixed rate loans. Your lender will usually notify you before making any changes, giving you time to prepare and adjust your budget.

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

Users can easily change the sort order and apply product filters to our product comparison tables. However, when you arrive on a page initially, by default home loans are sorted by:

    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. These are the products with an option to ‘Check Eligibility on Money.com.au’. 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 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, nor do we earn commission if you click to visit a lender’s website. The order of the products in the table is not influenced by any commercial arrangements.

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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