What is a tax file number (TFN)?
Tax file numbers (TFNs) are issued by the Australian Taxation Office (ATO). Your TFN is used to identify your tax records.
The following video from the Australian Taxation Office explains why getting s TFN is so important:
(Video © The Australian Taxation Office).
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.
When you make enquiries about your tax records, the Australian Taxation Office will ask you for your TFN. They will also ask for other information to check that you are who you say you are.
Your TFN is valuable. Do not share it with friends and do not provide it over the internet when applying for jobs.
|Why do you need a TFN?
# your employer must take 45% of your wages in tax
There are two ways you can apply for a Tax File Number:
1. Apply online and then attend an interview at an Australia Post Office:
|This is the easiest way to apply for a TFN. There are 3 steps in the process:
i) Complete the online form. You can access the form
here (or at)
ii) Print off the summary - after completing the form, you need to print off
the application summary. You will
iii) Attend an Australia Post interview - you must attend an interview at
your local Australia Post outlet within
2. Complete the paper based form and send in your "Proof of Identity":
|If you are not able to attend an interview, you can
complete the paper based application form. To get this you can contact
the Australian Taxation Office on 13 28 61 and ask them to send you a
copy of the "Tax file number - application and enquiry for
individuals" or check your local Post Office or newsagent as they
may have them.
You can view a sample of this form here.
One you have completed the application you need to send it off to the address that is on the form and you must also include certified copies of your identification documents (see notes below on this). Do not send original documents as the ATO do not return any documents to you.
Your "Proof of Identity":
When you apply for a Tax File Number (via either of the above methods) you have to verify your identity to the ATO. You need to provide certain documents to do this. The documents you require vary depending on whether you are over or under 16 years of age.
To get all the details on which documents you can use,
click here (or go to
Tax and Superannuation Information:
If you a looking for further help with tax and also superannuation, you can find some great information at the Government website https://www.taxsuperandyou.gov.au/