Transitioning to 9-Digit Account Numbers.

12 February, 2026

Alongside our Mobile Banking App upgrade, we are improving account numbers to make setting up payments easier and more reliable.

Now, each of your accounts will show their unique 9-digit account number on the home screen of the Mobile Banking App and Internet Banking. These account numbers will also appear on account statements in the future.

When setting up new payments or providing your banking details, please provide:
BSB + 9-digit account number + account name.


Using the 9-digit account number helps ensure your account details are more widely accepted by other institutions and reduces the issues some members have experienced when using shorter client (membership) numbers.

Some members are already successfully using their 9-digit account numbers for payments.
 
What do I need to do?
Whenever someone asks for your account details, provide:
BSB + 9-digit account number + account name.
Your 9-digit account number can now be found on the home screen of the upgraded Mobile Banking App and Internet Banking. In the future these numbers will also appear on account statements.
 
What stays the same?
All other aspects of your account remain unchanged:

  • All existing direct debits and credits will continue as normal — no action is required.
  • Your account balances remain the same.
  • Your BSB remains the same.
  • Your account name remains the same.
  • Your cards and PINs remain the same.
  • Your client (membership) number remains the same.
Only the number you use when setting up payments is changing.
 
Do I still use my client (membership) number?

Yes. You still need your client (membership) number for accessing Internet Banking and the Mobile Banking App.
Additionally, your client (membership) number can be used by our staff to locate and process transactions on your account.
 
Making your accounts easier to recognise.
To help you recognise your accounts more easily, you can now give each account a nickname within the upgraded Mobile Banking App and Internet Banking (for example: Everyday, Bills or Savings).
If you prefer, our staff can set this up for you.
 
Why is this change happening?
This change is in response to increasing member feedback that some banking systems and service providers have difficulty processing payments using our shorter client (membership) numbers.
Using 9-digit accounts number will:
  • Improve acceptance of your account details.
  • Reduce payment setup issues.
  • Make transferring money to and from your account more reliable.
  • Allow you to choose which sub-account to credit or set up a direct debit from.
 
How to stay safe from scams.
We take your security seriously. Remember that CWCU will never ask you for:
  • Your Internet Banking password or SMS One-Time passwords.
  • Your card PIN, CVV or full card number.
  • To transfer money to another account.
  • To download software or grant remote access to your device.
  • To confirm personal details through an unsolicited link.

If you receive a suspicious call, email or message please contact us immediately using the official contact details on our website or by visiting your nearest branch.
 
Need help?
If you are unsure about which details to use when setting up payments or need help finding your 9-digit account number, please contact us or visit your local branch. Our team is always happy to assist.