(1) The tax period that applies to you, if you are a * GST instalment payer for a * financial year, is that financial year.
(2) The tax period that applies to you, if you are a * GST instalment payer only for part of a * financial year, is that part of that financial year.
(3) A tax period under this section is an instalment tax period .
(4) This section has effect despite sections 27 - 5, 27 - 10, 27 - 15 and 27 - 30 (which are about tax periods).