Finance Act 1939

23 Provisions as to computation of profits and capital.

(1) For the purposes of the armament profits duty, the profits arising from a business in any year constituting or comprised in the standard period or arising in any chargeable accounting period shall be separately computed, and shall be so computed on the principles on which the profits arising therefrom are computed for the purposes of income tax under Case I of Schedule D, as adapted in accordance with the provisions of Part I of the Ninth Schedule to this Act, and the average amount of the capital employed in a business in any such year or period shall be computed in accordance with Part II of that Schedule.

(2) Where a standard period or chargeable accounting period is not a period for which the accounts of a business have been made up, such division and apportionment to specific periods of the profits and losses for any period for which the accounts relating to the business have been made up, and such aggregation of any such profits or losses or any apportioned part thereof, shall be made as appears necessary to arrive at the profits arising in the standard period or chargeable accounting period.

(3) Any apportionment under the preceding subsection shall be made in proportion to the number of months or portions of months in the respective periods, unless the Commissioners having regard to any special circumstances otherwise direct.