Australian Tax File Number (TFN) Declaration Form – Fillable PDF

The Tax File Number (TFN) Declaration is an essential Australian tax document used by employers, banks, and other payers to collect your TFN and tax‑free threshold preferences. Our fillable PDF version lets you complete the form quickly, accurately, and without printing.

What is the TFN Declaration Form?

This form, also known as NAT 3092, captures your TFN, residency status, and whether you wish to claim the tax‑free threshold. It is not an application for a TFN; it simply records the information needed for withholding tax purposes.

How to Complete the Form Online

Follow the step‑by‑step guide below to fill out the PDF directly in your browser using Formize’s PDF Filler app.

Common Mistakes to Avoid

• Using a stylus or handwritten notes – the form must be typed.
• Leaving the TFN field blank – this will delay processing.
• Choosing the wrong residency option, which can affect your tax rate.
• Not signing the declaration – an unsigned form is invalid.

Where to Submit the Completed Form

After you’ve filled and signed the PDF, send it to the requesting organization (employer, bank, etc.) via their preferred method – usually email, secure upload, or in‑person hand‑over.

Need more help? Review the instructions on the PDF itself or contact the organization that provided the form.