(1) In this section, "the person chargeable" has the same meaning as in Chapter 8 of Part 4.
(2) Where in any year of assessment the aggregate amount of the deficiencies computed in accordance with section 97(1) exceeds the aggregate of the surpluses as so computed, the excess shall be carried forward and, in so far as may be, deducted from or set off against the amount of profits or gains on which the person chargeable is assessed under Case V of Schedule D for any subsequent year of assessment, and if income tax has been overpaid the amount overpaid shall be repaid.
(2A) Where section 372AP(7) applies, the amount of the excess, which by virtue of subsection (2) has been carried forward to a year of assessment in which either of the events referred to in section 372AP(7) occurs, shall be reduced by the amount represented by B in the formula in that section and this section shall not apply in that year of assessment or in any subsequent year of assessment to the amount of that reductio
…