What is a Tax File Number

A TFN is a unique number the ATO issue to individuals and organisations to help administer tax and other Australian Government systems.

The ATO only issue one TFN to a taxpayer during their lifetime, even if they change their circumstances such as name or residency. You should keep your TFN secure at all times and advise the ATO if you change your name or address so we can update your details.

FREE fact sheet on applying for or using a Tax File Number ==> TFN Fact Sheet

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