Tax File Number
A TFN, tax file number is essential when lodging a tax return to the ATO. Based on your residency status, you can apply for a TFN.
If you are an Australian citizen, you will need to complete the paper form Tax file number – application or inquiry for individuals (NAT 1432).
Permanents migrants and temporary visitors, including working holidaymakers, can apply for a TFN anytime after they enter Australia.
Nonresidents can apply for a TFN by using (NAT 2628).
16 or Older
Note that Australian citizens aged 16 or older who live in the greater Melbourne region, Albury, or Wagga Wagga can apply for a TFN online by visiting TFN pilot.