An amount is not assessable income, and is not * exempt income, to the extent that it includes an amount relating to:
(a) * GST payable on a * taxable supply; or
(b) an * increasing adjustment that relates to a * supply; or
(c) an * increasing adjustment that:
(i) relates to an * acquisition; and
(ii) arises in circumstances that also give rise to a * recoupment that is included in assessable income.