(1) A person's repayable AASL debt for an income year is:
(a) the person's accumulated AASL debt referred to in paragraph 46(1)(b) in relation to that income year; or
(b) if any or all of the following apply:
(i) that debt has been reduced by the amount of a completion discount for the person;
(ii) one or more amounts have been paid in reduction of that debt;
(iii) one or more amounts have been assessed under section 48 to be payable in respect of that debt;
the amount (if any) remaining after deducting from that debt any amounts referred to in subparagraphs (i), (ii) and (iii).
(2) A reference in paragraph (1)(b) of this section to an amount assessed to be payable is, if the amount has been increased or reduced by an amendment of the relevant assessment, a reference to the increased amount or the reduced amount.