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Split loan calculator

Fixed vs variable? Get the benefits of both!

Calculate your split home loan repayments

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Calculate your stamp duty

Find out if you need to pay stamp duty.

Calculate the upfront costs

Find out how much you'll need in addition to your deposit.

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Home loan handy helpers

Heard some home loan lingo but are unsure what it means? Find the answers explained in simple terms (not bank-speak) right here.

How to apply for a split home loan?

You can easily apply for a split loan online or by connecting with one of our friendly Home Loan Specialists.

If you apply online, you may notice that you will be asked to select one home loan. When you get to this part simply select one of your choices and let your Home Loan Specialist know you’re interested in a split loan when they contact you. This is explained during the online application process, so you don’t need to worry about missing this step.

How do I use the split home loan calculator?

Simply enter the total amount of your home loan (or how much you want to borrow) and the interest rate for both loans. Then select how you would like to split your loan portions. The calculator will run the numbers for you and tell you the repayment amount.

Don’t be afraid to experiment with your percentages. For example, you may prefer to have 60 per cent of your loan in the fixed rate portion and 40 per cent variable instead of a 50/50 split.

The split loan calculator estimates your repayments so you can get an idea of your potential savings when splitting your home loan. As always, if you have a question, our Home Loan Specialists are here to help.

What can the split home loan calculator tell me?

The split loan calculator is useful for estimating your repayments before you decide to apply for a split loan. You’ll also receive a breakdown of the fixed portion and the variable portion of your loan.

Feel free to try a few different combinations and scenarios to find your ideal split loan.

What are the potential benefits for splitting your home loan?

Splitting your home loan is one way of gaining greater control over your repayments. You'll manage the risk of an interest rate rise with a fixed portion, while the variable portion means you won't miss out on the savings if interest rates drop.

Many variable rate loans come with extra features such as an offset account and no limits on making extra repayments; a split loan lets you take advantage of these features too.

If you're refinancing or simply can't decide between a fixed or variable rate home loan, a split loan can give you the best of both worlds.

How much do I need to split my mortgage?

You’ll need a minimum mortgage amount of $100,000 to split your loan. And, you can have a minimum of $10,000 in any loan portion. There are no maximum limits

For example, a $100,000 home loan could be split into a $90,000 three-year fixed loan and a $10,000 variable home loan.

When is the right time to split my home loan?

You can split your loan at any time. Many of our customers switch to a split loan because their household budget and lifestyle has changed since they first took out their loan. While others apply for a split loan straight away.

If you have a question or are in the research stage for your split loan, we’re here to help. You can connect with a Home Loan Specialist at any time.


Great home loans
Refinance to us and get:
  • Competitive rates
  • Fee-free extra repayments
  • Smart tools and clever features to help you own your home sooner

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Basic Variable Home Loan
Discounted rates from
Comparison rate^
Find out more
Owner occupier, principal & interest. Includes discount on new and additional lending, LVR 70% or less. Minimum loan amount applies.1,2,3

Learn more about home loans

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What is Lenders Mortgage Insurance and who needs to pay for it?

If your home deposit is below a certain amount, you may need to pay Lenders Mortgage Insurance. Find out how it works here.

Read more

Looking for more home loan calculators

Borrowing power calculator

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Refinance calculator

Discover how much you can save simply by switching your home loan.

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Important Information

Rates are current as at 8 May 2024 and subject to change.

Great Southern Bank, a business name of Credit Union Australia Ltd ABN 44 087 650 959, AFSL and Australian Credit Licence 238317. Lending criteria, limits, conditions, and fees apply. Applications are subject to credit approval.

1 Discounts off the Basic Variable Reference Rate are available to (a) new home loans with a minimum application amount of $100,000; or (b) switching or restructuring of the home loan you already have with us when it includes new borrowing of at least $10,000; for new home loan applications unconditionally approved on or after 8 May 2024. Published interest rates are inclusive of any discounts off the respective Reference Rates. Interest rates and discounts vary based on the loan purpose (owner occupier and investor), repayment type (principal and interest, interest only, construction) and Loan to Value Ratio (LVR). Maximum LVR applies and includes Lenders' Mortgage Insurance and Great Southern Bank loan setup fees where applicable.

2 Great Southern Bank may withdraw or amend this offer at any time without notice. A change in your loan purpose, your repayment type or your loan product will permanently end your entitlement to the discount.

3 LVR means ‘Loan to Value Ratio’. It is the amount of your loan divided by the valuation of your property, calculated as a percentage. For example, if you apply for a loan of $400,000, which will be secured by a property valued at $500,000, your LVR is 80%. We calculate your LVR at the time we approve your loan and your discount won’t change because of changes to the LVR during the life of your loan.

#Offer includes $0 Establishment Fee and is open to new or existing customers applying for a minimum application amount of $100,000 or more. Excludes applications for Internal Refinance of existing facilities. Applications must be received between 31/08/2022 and 30/06/2024 and settled by 30/09/2024. To be eligible to apply online you must be at least 18 years of age, a permanent resident of Australia, applying for yourself or as a married/defacto couple and buying an existing property or refinancing. Great Southern Bank may withdraw or amend this offer at any time without notice.

* Comparison rate accurate for $150,000 secured loan over 25 years. WARNING: This comparison rate is true only for the examples given and may not include all fees and charges. Different terms, fees or other loan amounts might result in a different comparison rate.

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What stage are you at?
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I'm researching my options

Applying for pre-approval allows you to know the maximum amount you can borrow while you look for a property.

Pre-approval means that a lender has agreed to lend you an amount of money in-principle, but the loan hasn't been proceeded to full or final approval.

While pre-approval is not a fully approved loan it can help you narrow your search, negotiate, and make an offer with certainty and confidence.

How much would you like to borrow?
If you are unsure, please enter an approximate amount.
The minimum amount you can borrow is $100,000
When would you like to borrow?
If unsure, please select an approximate timeframe.
Within 3 months
In 3+ months
Are you a Great Southern Bank customer?
Great Southern Bank was previously known as CUA.
Do you have a home loan with Great Southern Bank?
Great Southern Bank was previously known as CUA.
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For security, never include any bank account or card details in your enquiry. You can provide this information later if it's needed.
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Tell us a little more about your plans
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What stage are you at?
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How much is your current mortgage?
Please enter a numeric value
What are your plans?
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First Home Guarantee
Family Home Guarantee
Regional First Home Buyer Guarantee

The Australian Government has introduced initiatives to support eligible Australians to build or purchase a new home sooner: the First Home Guarantee, Family Home Guarantee and Regional First Home Buyer Guarantee.

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