17. Payment of tax and penalty

against an assessment pursuant to section 21(1) or (2), by the later of —

30 September of the year immediately following the emissions year; or

30 days after the date of service on the registered person of the notice of assessment; and

against any other assessment, within 30 days after the date of service on the registered person of the notice of assessment.

subject to subsection (3A), by the surrender of fixed‑price carbon credits; or

if, at the time of payment, the FPCC registry account for the taxable facility in relation to which the tax is charged is suspended or closed, in the form and manner required by the Agency.

the number of fixed-price carbon credits (at the carbon price applicable to the year in which they are to be purchased for the payment) that must be surrendered under subsection (2)(a) is the number assessed by the Agency to have a total carbon price equal to the amount of the tax, rounded down to the nearest whole number of such fixed‑price carbon credits; and

subsection (3A) does not apply except in the circumstances and to the extent prescribed.

a financial penalty of 5% of the amount of tax assessed and remaining unpaid, is payable in addition to the tax that remains unpaid;

the Agency must serve a demand note on the registered person and if payment is not made within 30 days after the date of the service of the demand note, the Agency may proceed to enforce payment of the tax and penalty under this Act; and

despite paragraphs (a) and (b), if the amount of tax remaining unpaid is not paid within 60 days after the imposition of the financial penalty under paragraph (a), an additional financial penalty of 1% of the amount of tax remaining unpaid is payable for each completed month that the tax remains unpaid, but not exceeding triple the amount of tax remaining unpaid in total.