where to find tax file number

The Tax File Number (TFN) in Australia can be found in several places:

1. Online via the Australian Taxation Office (ATO) services if you have a myGov account linked to the ATO. You can sign in to myGov, select ATO, then use the "Find my TFN" option to retrieve your number.
2. On official documents such as your income tax notice of assessment, payment summary, income statement from your employer, and superannuation account statements.
3. On letters received from the ATO, including statements of account.
4. If you use a registered tax agent, they can also help you find your TFN.
5. If you don’t have a myGov account or access to these documents, you can contact the ATO directly by phone.

If you have lost your TFN, you should avoid applying for a new one, instead use these methods to retrieve it. For security concerns, the ATO provides support options to protect you if your TFN is misused. If you don't have a TFN yet, you can apply for one online through the ATO website or at participating Australian Post Offices, where you submit your application and identity documents.