About this Generator
This tool generates valid Australian Tax File Numbers (TFN) that comply with the official format requirements set by the ATO.
The generator creates TFNs following the nine-digit structure and includes a valid check digit calculated using the modulo 11 algorithm.
Generated TFNs are for testing purposes only. While they follow the correct format and pass validation checks, they are not officially registered numbers.
About Australian TFN Generator
TFN Exemptions apply to: • Income tax exempt organizations • Non-profit organizations • Pensioners aged 80+ • Children under 16 • Foreign residents (for certain income)
TFN Withholding: • Applies when TFN not quoted • Tax withheld at highest marginal rate • Can be reclaimed through tax return • Some exemptions available
To verify an existing TFN number, you can use our Australian TFN Verifier