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Tax file number (TFN) declarations

Withholding according to employees' TFN declarations.

Published 16 June 2024

Receiving and applying TFN declarations

The answers your employees provide on their Tax file number declaration determine the amount you need to withhold from their payments. A Tax file number declaration applies to any payments made after you receive the declaration. If you receive an updated declaration from an employee, it will override the previous one.

If an employee does not give you a valid Tax file number declaration within 14 days of starting an employer-employee relationship, you must complete a Tax file number declaration with all available details of the employee and send it to us.

When a TFN has not been provided

You must withhold 47% from any payment you make to a resident employee and 45% from a foreign resident employee (ignoring any cents), if all of the following apply:

  • they have not quoted their TFN
  • they have not claimed an exemption from quoting their TFN
  • they have not advised you that they have applied for a TFN or have made an enquiry with us.

If an employee states at question 1 of the Tax file number declaration they have lodged a Tax file number – application or enquiry for individuals with us, they have 28 days to provide you with their TFN.

If the employee has not given you their TFN within 28 days, you must withhold 47% from any payment you make to a resident employee and 45% from a foreign resident employee (ignoring any cents) unless we tell you not to.

Do not allow for tax offsets or Medicare levy adjustment. Do not withhold any amount for study and training support loans.

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