Income Tax Assessment Act 1936
Subject to this Division, a TFN declaration commences to have effect when it is made.
Under section 202CB , a TFN declaration is not effective unless the tax file number of the recipient is stated in the declaration.
A TFN declaration ceases to have effect when the recipient makes another TFN declaration in relation to the payer.
A TFN declaration ceases to have effect 12 months after it is made if no eligible PAYG payment is made by the payer to the recipient during that 12 month period.
(a) the payer makes an eligible PAYG payment to the recipient after the TFN declaration is made; and
(b) a period of 12 months then elapses without any further eligible PAYG payment being made by the payer to the recipient;
then the TFN declaration ceases to have effect at the end of that period of 12 months.
A TFN declaration to which a determination under subsection (3) applies ceases to have effect at the end of the day fixed by the determination.
(a) all TFN declarations; or
(b) a specified class of TFN declarations;
shall cease to have effect at the end of the day specified in the determination.
A determination shall be made by notice published in the Gazette .