14(1)In this Schedule—U.K.
(a)any reference to a source of income arising before any date (“the earlier date”) and continuing after or ceasing before some other date (“the later date”) is a reference to a source of income arising to any person before the earlier date and continuing to be possessed by that person after, or (as the case may be) ceasing to be possessed by that person before, the later date; and
(b)any reference to a source of income includes a reference to a part of such a source.
(2)Where, as respects income from any source, income tax is to be charged under Case IV or V of Schedule D by reference to the amounts of income received in the United Kingdom, the source shall be treated for the purposes of this Schedule as arising on the date on which the first amount of income is so received.