(1) Subject to subsection (1B), in this section and sections 739F and 739G, 'appropriate tax', in connection with a chargeable event in relation to an investment undertaking in respect of a unit holder, means a sum representing income tax on the amount of the gain arising to an investment undertaking -
(a) subject to paragraph (ba), where the amount of the gain is provided by section 739D(2)(a), at the rate of -
(i) 25 per cent where the unit holder is a company, and
(ii) 41 per cent in any other case,
(b) subject to paragraph (ba), where the chargeable event happens on or after 1 January 2001 and the amount of the gain is provided by paragraph (b), (c), (d), (dd) or (ddd) of section 739D(2), at the rate of -
(i) 25 per cent where the unit holder is a company, and
(ii) 41 per cent in any other case,
(ba) where in the case of a personal portfolio investment undertaking, the chargeable event happens on or after 20 February 2007, at the rate of 60 per cent, and
(c) where the chargeable ev
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