(1) The amount (the total disallowed amount ) disallowed under subsection 820 - 46(1) of the * debt deductions of an entity for an income year is:
(a) if the entity has not made a choice under subsection 820 - 46(3) or (4) in relation to the income year (fixed ratio test applies)--the amount by which the entity's * net debt deductions for the income year exceed the entity's * fixed ratio earnings limit for the income year (see section 820 - 51); or
(b) if the entity has made a choice under subsection 820 - 46(3) in relation to the income year (group ratio test applies)--the amount by which the entity's net debt deductions for the income year exceed the entity's * group ratio earnings limit for the income year (see section 820 - 51); or
(c) if the entity has made a choice under subsection 820 - 46(4) in relation to the income year (third party debt test applies)--the amount by which the entity's debt deductions for the income year exceed the entity's * third party earnings limit for the income year (see section 820 - 427A).
Note 1: The disallowed amount also does not form part of the cost base of a CGT asset. See section 110 - 54.
Note 2: The entity's net debt deductions for the income year can be a negative amount.
(2) The amount by which a particular * debt deduction is disallowed as a result of subsection (1) is worked out as follows:
(a) first, divide the total disallowed amount by the * debt deductions of the entity for the income year;
(b) next, multiply the amount of the particular debt deduction by the result of paragraph (a).
(3) An entity's net debt deductions for an income year is worked out as follows:
(a) first, work out the sum of the entity's * debt deductions (disregarding this Division other than Subdivision 820 - EAA) for the income year;
(b) next, work out the sum of each amount included in the entity's assessable income for that year that is:
(i) interest, an amount in the nature of interest, or any other amount that is economically equivalent to interest; or
(ii) any amount directly incurred by another entity in obtaining or maintaining the financial benefits received, or to be received, by the other entity under a * scheme giving rise to a * debt interest; or
(iii) any other expense that is incurred by another entity and that is specified in the regulations made for the purposes of this subparagraph;
(c) next, subtract the result of paragraph (b) from the result of paragraph (a).
(4) To avoid doubt, an entity's net debt deductions for an income year can be a negative amount.