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  • Your identity security – get help

    If you know or suspect someone has stolen your tax file number (TFN) or is using your tax-related information illegally, phone us as soon as possible.

    To get help:

    • If you are contacted by someone claiming to represent the ATO, and suspect a scam, or if you have been scammed, phone us on 1800 008 540, Monday to Friday, 8:00am to 6:00pm.
    • If you think your TFN, ABN or other tax-related information was stolen or misused, phone us on 1800 467 033, Monday to Friday between 8.00am and 6.00pm.
    • If you think your AUSkey has been compromised or misused, cancel it through AUSkey ManagerExternal Link and phone us on 1800 467 033, Monday to Friday, 8.00am to 6.00pm. We will monitor your TFN for unusual activities.
    • If you think your myGov account, including your linked ATO services, was accessed without your permission, phone us on 13 28 61, Monday to Friday, 8.00am to 6.00pm.

    Cybercrime can also be reported to the Australian Cybercrime Online Reporting Network (ACORN)External Link.

    You can also report identity theft and fraud to your state or territory police.

    Help to re-establish your identity

    If your identity is stolen or misused, contact our Client Identity Support Centre on 1800 467 033 (8.00am–6.00pm, Monday–Friday), who can help you establish your tax identity.

    If you think your other personal information was compromised, phone iDcareExternal Link on 1300 432 273, Monday to Friday, 8:00am to 5:00pm.

    iDcare is a free national identity and cyber community support service for individuals.

    See also:

    If you hold taxpayer information

    If you've been holding TFNs or other taxpayer information for your clients or employees and you know or suspect its security has been breached, phone us on 1800 467 033, Monday to Friday, 8.00am to 6.00pm.

    See also:

    Protect your identity

    Your TFN is used to identify you in your dealings with the ATO. Your TFN and other personal information can be used to lodge tax returns and other tax forms.

    • Only give your TFN to organisations or people who have a legitimate need for it, such as your tax agent, current employer or bank.
    • Destroy or delete your TFN from any documents before throwing them away.
    • Don't share your online passwords with others and never reply to emails with your TFN, password or other sensitive information.

    See also:

    Last modified: 22 Sep 2016QC 49587