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Tax file number declaration

How to complete a tax file number (TFN) declaration so your payer can work out how much tax to withhold from payments.

Last updated 28 May 2026

Before you start your TFN declaration form

Understand the terms we use and work out if you should complete a TFN declaration form.

Access the TFN declaration form

Work out the type of TFN declaration form to use and how to access the forms.

Paper TFN declaration form for payees

How a payee can order and complete a paper TFN declaration form (NAT 3092).

Payer information and obligations

What payers need to know about the Tax file number (TFN) declaration and their obligations.

View TFN declaration details online

How to view your current and historical TFN details in ATO online services.

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