An entity has a fixed ratio test disallowed amount (or FRT disallowed amount ) for an income year equal to:
(a) if * debt deductions of the entity for the income year are disallowed under subsection 820 - 46(1) and the amount disallowed is worked out in accordance with paragraph 820 - 50(1)(a) (fixed ratio test applies)--the amount disallowed; or
(b) otherwise--zero.