A Tax File Number (TFN) is a nine-digit number that is your unique identifier with the Australian Taxation Office (ATO). Everyone has a different TFN. Your TFN is yours for life, even if you change jobs, move interstate or change your name. If you leave the country and later come back to Australia, you still use the same TFN.
You will need a TFN to transact with, not only with the ATO, but also with many other Australian Government agencies. A TFN is required when:
If you are working and do not have a TFN, your employer must take 47% of your pay in tax and any financial institution will also withhold 47% of any interest earned. Remember your TFN should only be used for taxation purposes and you need to protect it at all times.
The ATO and Australia Post have removed much of the red tape when an individual applies for a TFN. Tax File Number applications are now simpler and easier, as they can now be applied for online and have your identity verified at more than 460 Australia Post retail outlets throughout the country.
To apply online:
You should receive your TFN within 28 days after your interview. The ATO will mail your TFN to the postal address on your application.
Apply at a Department of Human Services (Centrelink) or a Department of Veterans Affairs office
You can also apply in person at a DHS (Centrelink) or DVA office by completing the paper form Tax file number – application or enquiry for individuals (NAT 1432).
You can get a copy of this form by:
Make an appointment with either DHS or DVA and take your proof of identity documents with you.
The ATO will send your TFN to the postal address on your application within 28 days
By Post
Fill in the paper form Tax file number – application or enquiry for individuals (NAT 1432) and send it to the address shown on the form with certified copies (not originals) of your proof of identity documents.
What if I lose my TFN?
It isn’t uncommon to mislay your TFN. That can be particularly bothersome if you need to fill out a TFN declaration when you start a new job. You can generally find your TFN in any of the following places:
If you still cannot locate your TFN, contact the ATO directly by calling 13 28 61.