(1)Where a company resident outside the United Kingdom (“the overseas company”) pays a dividend to a company resident in the United Kingdom (“the United Kingdom company”) and the overseas company is related to the United Kingdom company, then for the purpose of allowing credit under any arrangements against corporation tax in respect of the dividend, there shall be taken into account, as if it were tax payable under the law of the territory in which the overseas company is resident—
(a)any United Kingdom income tax or corporation tax payable by the overseas company in respect of its profits; and
(b)any tax which, under the law of any other territory, is payable by the overseas company in respect of its profits.
(2)Where the overseas company has received a dividend from a third company and the third company is related to the overseas company, then, subject to subsection (4) below, there shall be treated for the purposes of subsection (1) above as tax paid by the overseas company in respect of its profits any underlying tax payable by the third company, to the extent that it would be taken into account under this Part if the dividend had been paid by a company resident outside the United Kingdom to a company resident in the United Kingdom and arrangements had provided for underlying tax to be taken into account.
(3)Where the third company has received a dividend from a fourth company and the fourth company is related to the third company, then, subject to subsection (4) below, tax payable by the fourth company shall similarly be treated for the purposes of subsection (2) above as tax paid by the third company; and so on for successive companies each of which is related to the one before.
(4)Subsections (2) and (3) above are subject to the following limitations—
(a)no tax shall be taken into account in respect of a dividend paid by a company resident in the United Kingdom except United Kingdom corporation tax and any tax for which that company is entitled to credit under this Part; and
(b)no tax shall be taken into account in respect of a dividend paid by a company resident outside the United Kingdom to another such company unless it could have been taken into account under the other provisions of this Part had the other company been resident in the United Kingdom.
(5)For the purposes of this section a company is related to another company if that other company—
(a)controls directly or indirectly, or
(b)is a subsidiary of a company which controls directly or indirectly,
not less than 10 per cent. of the voting power in the first-mentioned company.