(1)This section is about the interpretation of the references in sections 13(2) and 15(5) to the profit against which a carried-forward amount is to be set off, in a case where the carried-forward amount—
(a)is one that is treated as arising in an accounting period later than that in which it in fact arises, and
(b)is accordingly deductible in calculating a profit for that later period.
(2)In such a case, the references are to be read as references to the profit in calculating which the amount is deductible, disregarding the deduction.