Show download pdf controls
  • Tax file number

    How to apply for a tax file number (TFN), update your TFN details, where to find your TFN and what to do if it's stolen.

    What is a tax file number?
    Find out what you need a TFN for and how to keep your TFN and personals details safe.

    Apply for a TFN
    How to apply for a TFN online or by paper depending on your circumstances and residency status. It is free to apply.

    Lost or stolen TFN
    How to find your TFN if it's lost and what to do if your TFN is stolen or being misused.

    Update your TFN details
    How to update your TFN details, such as your name, date of birth or bank details if they are incorrect or have changed.

    Identity documents
    The identity documents you need to apply for a TFN, ABN or register for GST and who can certify your original documents.

    Last modified: 20 Sep 2022QC 22600