100(1)This paragraph supplements paragraphs 98 and 99.U.K.
(2)The “tax written down value” of the ship at any time means what would be the amount of unrelieved qualifying expenditure at that time determined on the following assumptions—
(a)that the qualifying expenditure relating to the ship had been held in a single asset pool, and
(b)that there had been made to the lessor—
(i)the first-year allowance (if any) that was actually made to him,
(ii)any first-year allowance falling to be made to him that was postponed under [F1section 130 of the Capital Allowances Act 2001], and
(iii)the maximum amount of any writing-down allowances that, on the preceding assumptions, could have been made.
(3)The references in paragraph 98(3)(b) and sub-paragraph (2) above to the amount of “unrelieved qualifying expenditure" are to [F2the unrelieved qualifying expenditure that would otherwise have been carried forward under Chapter 5 of Part 2 of the Capital Allowances Act 2001].
(4)For the purpose of determining that amount at a time other than the beginning or end of an accounting period of the lessor, it shall be assumed that an accounting period of the lessor began or ended at that time.