(1) If:
(a) a person's * repayment income for an * income year exceeds the * minimum repayment income for the income year; and
(b) on 1 June immediately preceding the making of an assessment in respect of the person's income of that income year, the person had an * accumulated HELP debt;
the person is liable to pay to the Commonwealth, in accordance with this Division, the amount worked out under section 154 - 20 in reduction of the person's * repayable debt.
(2) A person is not liable under this section to pay an amount for an * income year if, under section 8 of the Medicare Levy Act 1986 :
(a) no * Medicare levy is payable by the person on the person's * taxable income for the income year; or
(b) the amount of the Medicare levy payable by the person on the person's taxable income for the income year is reduced.