Add your Tax File Number (TFN)

What is a TFN?

Your Tax File Number (TFN) is a unique 9-digit number issued by the Australian Tax Office (ATO), that’s used to identify you for tax and super purposes. You keep the same TFN for life, even if you change your name, job or address. If you don’t have a TFN, you can apply for one via the ATO website. 

How to add your TFN

You can easily add your TFN in Online Banking or the Westpac App.
 

In the Westpac App

1. Search Tax File Number
2. Select the account you wish to update
3. Tap Choose option
4. Tap Enter Tax File Number or Declare Tax File Number exemption
5. Enter details and tap Update
6. Repeat above steps for all accounts you wish to provide TFN

In Online Banking

1. Go to Services > Preferences > Tax File Number
2. Select Update Tax File Number
3. Enter the SMS Code sent to your registered mobile and select Authorise
4. Select the account you wish to update
5. Enter your TFN or TFN exemption and select Save
6. Repeat above steps for all accounts you wish to provide TFN

Frequently asked questions