Commonwealth Consolidated Acts Commonwealth Consolidated Acts(1) If any of the tax (including additional tax) which a person is liable to pay remains unpaid after the time by which the tax is due to be paid, the person is liable to pay the general interest charge on the unpaid amount for each day in the period that:
(a) started at the beginning of the day by which the tax was due to be paid; and
(b) finishes at the end of the last day on which, at the end of the day, any of the following remains unpaid:
(i) the tax;
(ii) general interest charge on any of the tax.
(2) The amount of the general interest charge is taken to be additional tax payable under this section.
Note: The general interest charge is worked out under Part IIA of the Taxation Administration Act 1953 .