4(1)This paragraph applies in any case where—
(a)a direction has been given under subsection (1) of section 747 in respect of an accounting period of a controlled foreign company, and
(b)the company’s chargeable profits for that period have been apportioned among the persons referred to in subsection (3) of that section, and
(c)the controlled foreign company pays a dividend in whole or in part out of the total profits from which (in accordance with subsection (6)(a) of that section) those chargeable profits are derived.
(2)Subject to paragraphs 5 and 6 below, where this paragraph applies, the aggregate of the sums assessed on and recoverable from companies resident in the United Kingdom in accordance with section 747(4)(a) in respect of the chargeable profits referred to in sub-paragraph (1)(b) above shall be treated for the purposes of Part XVIII as if it were an amount of tax paid in respect of the profits concerned under the law of the territory in which the controlled foreign company was resident and, accordingly, as underlying tax for the purposes of Chapter II of that Part.
(3)In the following provisions of this paragraph and in paragraphs 5 and 6 below, the aggregate of the sums which, under sub-paragraph (2) above, fall to be treated as underlying tax is referred to as the “gross attributed tax”.
(4)If, in the case of a person who receives the dividend, section 796 or section 797 has the effect of reducing the amount which (apart from that section) would have been the amount of the credit for foreign tax which is to be allowed to that person, then, for the purposes of sub-paragraph (5) below, the amount of that reduction shall be determined and so much of it as does not exceed the amount of the foreign tax, exclusive of underlying tax, for which credit is to be allowed in respect of the dividend is in that sub-paragraph referred to as “the wasted relief”.
(5)Except for the purpose of determining the amount of the wasted relief, the gross attributed tax shall be treated as reduced by the aggregate of the wasted relief arising in the case of all the persons falling within sub-paragraph (4) above and, on the making of a claim by any of the companies referred to in sub-paragraph (2) above—
(a)the amount of tax assessed on and recoverable from the company in accordance with section 747(4)(a) in respect of the chargeable profits referred to in sub-paragraph (1) (b) above shall, where appropriate, be reduced; and
(b)all such adjustments (whether by repayment of tax or otherwise) shall be made as are appropriate to give effect to any reduction under paragraph (a) above.