Tax File Number (TFN) and Working in Australia

What a Tax File Number is

A Tax File Number (TFN) is a personal reference number used in Australia's tax and superannuation systems. It is issued by the Australian Taxation Office (ATO). If you work in Australia — including as an international student — you generally need a TFN so you can be taxed correctly.

This page is general, factual information and is not financial, tax, or immigration advice. For guidance on your own circumstances, use the official ATO channels or a registered tax professional.

Why you need a TFN to work

You can technically start a job without a TFN, but if you do not provide one to your employer within the allowed time, tax may be withheld from your pay at a higher rate. Providing a valid TFN helps ensure the correct amount of tax is taken out.

You give your TFN to your employer (and to your bank and super fund where relevant) — never publish it publicly. Keep your TFN private and secure, as it is sensitive personal information.

• Lets your employer withhold tax at the correct rate
• Used when you lodge an annual tax return
• Kept private — given only to your employer, bank, super fund, and the ATO

How to apply through the ATO

International students and other eligible foreign passport holders generally apply for a TFN through the Australian Taxation Office. Applying for a TFN is free — you do not need to pay anyone to get one.

The exact application method and what you need can change, so follow the current steps on the official ATO website. As a general guide, applicants are usually asked to confirm details such as those below.

• Apply online via the official ATO website (the method can change)
• Have your passport / visa details and an Australian address ready
• Applying is free — beware of anyone charging a fee to "get" a TFN for you
• Your TFN is sent to you after processing — keep it secure

Superannuation explained neutrally

Superannuation (often called "super") is Australia's system of retirement savings. For eligible employees, employers generally pay super contributions on top of wages into a super fund. The rules on who is eligible and the contribution rate are set by the Australian Government.

This is described here only as a neutral fact of working in Australia. For the current rules, eligibility, and any options when you leave Australia, check the official ATO information rather than relying on general descriptions.

Tax returns and where to verify

People who work in Australia usually need to lodge a tax return each financial year, reporting income and tax paid. Your residency status for tax purposes affects how you are taxed, and this is determined under ATO rules, separately from your visa status.

Because tax rules and rates can change, verify everything on the official ATO source before acting. This guide is general information, not tax or financial advice — consider the ATO's help channels or a registered tax agent for your situation.