s 432 Giving effect to allowances and charges
(1) An allowance or charge to which a person is entitled or liable under this Part is to be given effect in calculating the profits of that person’s mineral extraction trade, by treating— (a) the allowance as an expense of the trade, and (b) the charge as a receipt of the trade. (2) This section is subject to section 6E (giving effect to allowances and charges: NI rate activity cases).