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Features & benefits

Earn bonus interest
You’ll be saving smarter, not harder.
$0 monthly account fee
Saving shouldn’t cost you money.
Withdraw money without losing interest
Just be sure to grow your balance by $250 each month.>
Learn more
Save as you spend
Set up The Boost on your Advantage Saver Account to give your savings extra oomph.
Open an Advantage Saver Account
Start earning bonus interest on your savings today
Aged 18+?

To be eligible, you’ll need to be 18+.

Increase balance by $250 each month

Simply increase your balance by at least $250 a month, and you’ll earn bonus interest on your savings.>

Earn up to 4.85% p.a.

Enjoy a combined 0.10% p.a. base rate and bonus 4.75% p.a. on balances up to $100,000.>

Clever ways to save
The Vault

Avoid the temptation to dip into your saving by hiding your account in The Vault.

The Boost

Save every time you spend with The Boost.


Set up notifications and always know what's happening with your accounts.

You might also be interested in
Everyday Edge Account
A feature-packed everyday account for customers aged 18+
Home Saver
Reach your dream of home ownership sooner with bonus interest on your savings.
Get in touch
We're here to help.
Call 133 282

Mon - Fri: 8:00am - 8:00pm (AEDT)
Sat: 8:00am - 4:00pm (AEDT)

Find a branch
Speak to one of our friendly staff at a branch near you.
Connect online
Chat to us or browse help topics and FAQs.

Frequently asked questions

Who is Great Southern Bank?

Great Southern Bank is the trading name of Credit Union Australia Limited. You may have previously known us as CUA.

For over 75 years, we’ve been helping Australians with their banking and insurance needs. And today, we continue to provide clever products and tools to help customers reach their financial goals sooner.

As a customer-owned bank, we’re owned by you, our customers. So, instead of chasing huge profits for stakeholders, we reinvest profits back into the business for better products and services.

We love helping customers to achieve their financial goals and we can’t wait to help you with yours, whatever they may be. To get started, contact us today.

How do I switch to Great Southern Bank?

Switching to Great Southern Bank is easier than you think and takes less than five minutes! All you need to do is open an account. It’s that simple.

Plus, we can help you switch your salary, direct debits, and regular payments to your brand-new Everyday Edge Account.

What bank accounts are available at Great Southern Bank?

We offer different types of accounts to suit different financial needs – be it everyday money management or savings. To find an account that works best for you, click on the links below.

How can I make withdrawals without losing interest on my Advantage Saver account?

Advantage Saver’s interest is made up of a base interest rate and bonus interest rate. You don't need to meet any eligibility criteria to receive the base interest rate.

To earn bonus interest, you’ll need to make sure your account balance at the end of the month is at least $250 higher than it was at the start of the month. The $250 can’t include interest we’ve paid to you.

Here are some examples to help explain:

Example 1:

  Account Balance CreditDebitBalanceOutcome
Opening Balance $120,000     
Deposit  $250   $120,250  
Withdrawal   $1,000 $119,250  
Closing Balance    $119,250 No Bonus Interest Paid

In this example, the balance has decreased by $750 from the opening balance. This means you aren't eligible for bonus interest as you haven’t increased your balance by $250 at the end of the month.

Example 2:

  Account Balance CreditDebitBalanceOutcome
Opening Balance $120,000     
Deposit  $250   $120,250  
Withdrawal    $120,250  
Closing Balance    $120,250 Bonus Interest Paid

In this example, the balance at the end of the month has increased by $250 from the opening balance. Congratulations, you’re eligible for bonus interest.

Example 3:

  Account Balance CreditDebitBalanceOutcome
Opening Balance $120,000     
Deposit  $250   $120,250  
Withdrawal   $1,000 $119,250  
Deposit  $1000   $120,250  
Closing Balance    $120,250 Bonus Interest Paid

In this example, you’ve withdrawn money from your account, but you‘ve deposited enough to increase the closing balance by the minimum $250 needed to earn bonus interest. Congratulations.

Is my money safe in a savings account?

Yes. Money placed in a savings account with a bank, building society or credit union is protected by the Australian Government’s Financial Claims Scheme (FCS).

The scheme protects deposits up to $250,000 per person, per financial institution. In the unlikely event that a financial institution closes you’ll have the peace-of-mind that your money is safe.

Learn more about the FCS.

Can I do my banking on my mobile phone?

Absolutely. Simply download our mobile banking app to do your banking anywhere from the convenience of your phone.

Can I do my banking online?

Yes. Great Southern Bank Online Banking is easy to use, convenient and secure. As a new customer you'll be set up with online banking as soon as you apply.

If you are already a customer, you can register for online banking in less than a minute and get started straight away.

How secure is mobile banking and online banking?

We take security very seriously and have several features to keep your online and mobile banking safe and secure.

For starters, you’ll always need your customer number and password to log in to digital banking. You can also take advantage of our special features for extra security and peace of mind.

Our key security features include:

While we take proactive steps to fight fraud, it’s important that our customers also take an active role in keeping their accounts secure.

Our online security checklist contains more tips and tricks to keep your account secure. And as always, never share your password with anyone.

Important Information

Great Southern Bank, a business name of Credit Union Australia ABN 44 087 650 959, AFSL 238317. Conditions, fees and charges apply.

This is general information and does not take into account your objectives, financial situation or needs. Consider the appropriateness of the information, including the Terms and Conditions (T&Cs) booklet, before acting on it. The Financial Claims Scheme may apply to this product; refer to the T&Cs for more information.

Deposits up to $250,000 per account holder are guaranteed by the Federal Government under the Financial Claims Scheme.

Rates current as at 07 November 2023 and subject to change.

> Applicants must be over the age of 18. Available to new and existing customers. Only one account per customer. Interest is calculated daily on whole balances and paid monthly. Rate applies on a stepped basis. Refer to the interest rate schedule for current interest rates. Bonus interest is applied on top of the base rate if the balance of the Advantage Saver account increases by $250 by the end of each calendar month (excluding interest payments, withholding tax and fees).