Lost or stolen TFN
If you can't find your TFN
If you can't find your TFN and do not suspect misuse, phone us on 13 28 61 between 8.00am and 8.00pm Monday to Friday and 10.00am to 4.00pm Saturday. You can also phone Sunday between 10.00am to 4.00pm from 1 July to 31 October
If you have a myGov account linked to the ATO, you can access your TFN online.
Log into myGov
If you think your TFN has been stolen
If your TFN has been lost, stolen or accessed by an unauthorised third party, tell us as soon as possible. We can apply security measures that will monitor for any unusual or suspicious activity with your TFN.
If your TFN has been stolen or you suspect misuse, phone our Client Identity Support Centre on 1800 467 033 between 8.00am and 6.00pm, Monday to Friday.
Client Identity Support Centre
The Client Identity Support Centre is a support service for taxpayers who have had their identities stolen or misused. We'll give you information, advice and assistance to re-establish your identity.
Tell us as soon as possible if your TFN has been lost or stolen.