Applying for a TFN
It's not compulsory to have a TFN, but if you don't have one you may have more tax withheld than you need to, or you may not be able to receive certain government benefits.
Why you need a TFN
Before you apply, you should understand why you may need a TFN.
Individuals (Australian residents for tax purposes)
If you are 16 years or older, you can apply for a TFN online.
However, if you are an Australian resident who is under 16 years of age, or require a parent or guardian to sign your application you need to complete the paper application form Tax file number - application or enquiry for individuals form (NAT 1432) and provide the necessary proof of identity documents.
Individuals living outside Australia
If you are a non-resident of Australia for tax purposes, you need to understand when you might need a TFN. You can apply for a TFN using the form Tax file number - application or enquiry for an individual living outside Australia (NAT 2628) and providing the necessary proof of identity documents.
Permanent migrants or temporary visitors
If you are a permanent migrant or temporary visitor to Australia you can apply for a TFN online at any time after entering Australia.
Lodging your application
Once you have completed your application, you can post the form and your proof of identity documents to the address specified on the form. Alternatively, you can take your application form and your proof of identity documents to your nearest ATO shopfront.
Sections within Applying for a TFN
Last Modified: Tuesday, 26 February 2013