A TFN (tax file number) identifies you in Australia's tax and superannuation systems. It is not a visa, work permit, bank account, Medicare number, or Australian business registration.
Who can use the online migrant application?
The Australian Taxation Office provides an online Individual Auto-Registration service for eligible permanent migrants and temporary visitors. You must already be in Australia and hold a valid work-rights visa linked to your foreign passport or accepted travel document.
If that route does not match your visa or identity position, use the Taxation Office's application selector. Australian citizens, residents using Australian identity documents, and people outside Australia have different routes.
Applying is free. Avoid commercial sites that charge to submit the same government application or ask for unnecessary identity access.
What information do you need?
Enter your passport or travel-document number, nationality as shown in the visa record, full name, other names, date of birth, contact details, Australian residential details, and an Australian postal address.
The form also asks about earlier Australian identifiers, tax returns, property, business interests, spouse details, or Centrelink records. Search for an existing number rather than creating a duplicate.
Match the spelling and order used in the passport and Department of Home Affairs visa record. A name difference can delay later links with payroll, myGov, a bank, or superannuation.
What should you do after receiving it?
Give the number to an employer through the approved tax declaration process and to your superannuation fund where appropriate. Do not place it on a résumé, ordinary job application, rental application, or public document.
Link the Australian Taxation Office to your myGov government-services account only through official channels. If online linking cannot verify your history, contact the Taxation Office for the correct linking process.
Your tax number does not decide tax residence or the tax treatment of overseas income. Those questions depend on facts and law.
Common misconceptions
One misconception is that you must wait for the number before starting lawful work. An employer can follow the declaration rules while an application is pending, but withholding may differ until details are supplied.
Another is that every self-employed person needs a new personal identifier. An Australian business number is a separate registration, while your personal tax number remains yours.
Summary
Apply free through the Australian Taxation Office after arrival when your passport-linked visa qualifies for the online migrant route.
Keep the number private, avoid duplicates, and use it for payroll, tax, and superannuation rather than as general identity.
Sources
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