Tax file numbers

More information

If you need more information about TFNs or would like to update your details, see:

• Tax file number essentials (individuals)
• Updating your name and address (individuals)
• Changes in your business essentials.

Alternatively, you can either:

• phone 13 28 61 between 8.00am and 6.00pm, Monday to Friday
• if you are in business, phone 13 28 66 between 8.00am and 6.00pm, Monday to Friday.

If you phone us we need to know we are talking to the correct person before discussing your tax affairs. We will ask you for details only you, or your authorised representative, would know.

To assist with your enquiry you may also quote your TFN if you have one. It is not an offence not to quote your TFN but quoting it reduces the risk of administrative errors that may delay the processing of your enquiry.

If you do not speak English well and want to talk to a tax officer, phone the Translating and Interpreting Service on 13 14 50 for help with your call.

If you are deaf, or have a hearing or speech impairment, phone the ATO through the National Relay Service (NRS) on the numbers listed below:

• TTY users, phone 13 36 77 and ask for the ATO number you need
• Speak and Listen (speech to speech relay) users, phone 1300 555 727 and ask for the ATO number you need
• internet relay users, connect to the NRS on relayservice.com.au and ask for the ATO number you need.