Australian Tax File Number (TFN) Declaration – Fillable PDF

The Australian Tax File Number (TFN) Declaration is a mandatory form used by employers, banks, and other payers to collect your TFN and calculate the correct amount of tax to withhold. Our fillable PDF version lets you complete the form quickly, securely, and without printing.

What Is the TFN Declaration Form?

The TFN Declaration (form TFN 1) is issued by the Australian Taxation Office (ATO). It captures personal details, residency status, and any tax offsets you may be entitled to. Providing accurate information ensures you pay the right amount of tax from the first payday.

How to Complete the Form Online

Instead of downloading and editing the PDF in a separate editor, simply click the "Fill out this form" button on this page. The Formize PDF Filler app will load the official document, and you can start typing directly into each field.

Common Mistakes to Avoid

• Leaving any required field blank – the ATO will reject an incomplete declaration.
• Using cursive or unclear handwriting – with a fillable PDF you type, eliminating readability issues.
• Entering an incorrect TFN – double‑check the number before submitting.
• Selecting the wrong residency status – choose the option that matches your situation to avoid incorrect tax rates.

Where to Submit Your TFN Declaration

After completing the form, you can:

• Save the PDF and email it to your employer or financial institution.
• Print the completed form and hand it over in person.
• Upload the file directly through the payer’s online portal if they support PDF uploads.

Download the Official PDF

For reference or offline use, you can download the official ATO TFN Declaration PDF below. The online filler uses the same document, ensuring full compliance.