Tax File Number

Your Tax File Number (TFN) identifies you for tax and superannuation purposes. If you are working, you need a TFN or you will be taxed at the top rate.

If you are not eligible to apply online (for example, if you are under 15 years old), you can apply via the Post Office by completing and printing this form, then attending an appointment at the Post Office:

Find out more about Tax here: https://www.taxsuperandyou.gov.au/