Update tax file number

You can update your Tax File Number in Internet or Mobile Banking.

To update it in the BankSA App

1. Logon to your app
2. Select Services in the bottom menu
3. Under My Details, select Provide Tax File Number.

To update it on your desktop

1. Logon to Internet Banking
2. Select My details & settings in the left hand menu
3. Under My Information, select Provide Tax File Number.

A Tax File Number (also known as a TFN) is your personal reference number issued by the Australian Taxation Office (ATO) to identify you for tax purposes.

Each time you open an account that earns interest ​for example a savings account, you’ll be asked to provide your TFN. It is not compulsory to provide a TFN when opening an account, however if you choose not to provide your TFN, we may be required by law to deduct tax at the highest marginal tax rate plus the Medicare Levy from interest earned on the account.

Currently you’re not able to update tax details for an account owned by a child or where you are a signatory or Power of Attorney online. To provide or make any changes to this you’ll need to contact us on 13 13 76 for your options or visit your local branch. 

In order to have no withholding tax applied to your account, please ensure that you have added your Tax File Number (TFN) to your account information. If this is a joint account, a minimum of 2 TFNs will need to be added to the account.

In the case that your TFN has ready been provided, if you are meant to be exempt or if this is for a child's account that you are signatory on, you will need to contact us on 13 13 76 for your options or visit your local branch.