Tax file number

The Australian Taxation Office (ATO) will mail your TFN to the postal address on your application within 28 days after your visit to the Post Office. Your patience during the processing period is appreciated. Do not lodge another application during this time.

If you don't receive your TFN after 28 days, contact the ATO on 13 28 61 between 8am and 6pm EST, Monday to Friday.

You can find out which identity documents are required via the online form, or view details on the Australian Taxation Office website.

A tax file number (TFN) is a unique 9 digit number issued to individuals and organisations to administer tax and other Australian government systems.

For further information, refer to the Australian Taxation Office website.

No, there is no fee for a TFN application. Any Australian resident can apply for a TFN at no cost.

It isn't compulsory to have a TFN. However, if you don't have one, you may have too much tax withheld or be unable to receive government benefits to which you're entitled.

For further information, refer to the Australian Taxation Office website.