(1) Where an assurance company carries on life business in conjunction with insurance business of any other class, the life business shall for the purposes of corporation tax be treated as a separate business from any other class of business carried on by the company.

(2) In ascertaining for the purposes of section 396 or 397 whether and to what extent a company has incurred a loss on its life business, any profits derived from the investments of its life assurance fund (including franked investment income of a company resident in the State) shall be treated as part of the profits of that business.