Income Tax Assessment Act 1936
(a) the assessable income of the taxpayer of a year of income (in this Subdivision called the ``current year'' ) includes one or more eligible lump sums; and
(b) the total arrears amount is not less than 10% of the amount (if any) remaining after deducting that total arrears amount from the normal taxable income of the current year;
the taxpayer is entitled to a rebate of tax, in the taxpayer's assessment for the current year, of the amount (if any) calculated in accordance with this Subdivision.159ZRA(2) [Natural person]
The rebate is only available to a natural person (otherwise than in the capacity of a trustee).