What is tfn?

TFN stands for Tax File Number and is a unique number assigned to individuals and entities by the Australian Taxation Office (ATO). It is used to identify taxpayers for tax and superannuation purposes. The TFN is required for various activities, such as filing tax returns, applying for an Australian Business Number (ABN), claiming government benefits, and opening a bank account. It is important to keep the TFN confidential and not share it with anyone unless necessary. The ATO encourages individuals to apply for a TFN when they start working or as soon as possible.