9When tax payable

9 When tax payable

(1) Subject to this Act: (a) where tax in respect of a taxable debit made during a month (whether or not that tax is the subject of an assessment) is payable under subsection 8(1), that tax shall be paid not later than 14 days after the end of that month; and (b) tax to which an assessment made under subsection 16(2) relates shall be paid not later than the day specified in a notice of that assessment as the day on which the tax is due for payment, being a day not less than 14 days after: (i) in a case in which notice of that assessment was required to be served on one person—the day on which the notice was served on the person; (ii) in a case in which notice of that assessment was required to be served on 2 or more persons and notice of that assessment was served on those persons on the same day—the day on which the notice was served on the persons; or (iii) in a case in which notice of that assessment was required to be served on 2 or more persons and notice of that assessment was served on those persons on different days—the earliest of those days. (2) Additional tax under section 17 is due and payable on the date specified in the notice of assessment of the additional tax as the date on which the additional tax is due and payable.