Schedule 24 to the Principal Act is amended -
(a) in paragraph 4 by inserting the following after subparagraph (2):
"(2A) For the purposes of subparagraph (2) but subject to subparagraph (3), where credit is to be allowed against corporation tax for foreign tax in respect of any income of a company (in this subparagraph referred to as 'that income'), being income which is taken into account in computing the profits or gains of a trade carried on by the company in an accounting period, the relevant income shall be so much of the profits or gains of the trade for that accounting period as is determined by the formula -
where -
P is the amount of the profits or gains of the trade for the accounting period before deducting any amount under paragraph 7(3)(c),
I is the amount of that income for the accounting period before deducting any disbursements or expenses of the trade, and
R is the total amount receivable by the company in the carrying on of the trade in the accounting period.",
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