(1) If any levy payable by the trustee of a fund remains unpaid as at:
(a) the beginning of the first levy month after the time when it became due for payment; or
(b) the beginning of a later levy month;
the trustee is liable to pay to the Commonwealth, in respect of that levy month, by way of penalty, the amount worked out using the formula:
(2) Late payment penalty for a levy month is due and payable at the end of the levy month.