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23(1)This Schedule has effect in relation to expenditure incurred on or after the relevant date.U.K.
(2)In relation to a chargeable period which—
(a)begins before the relevant date, and
(b)ends on or after the relevant date,
the maximum allowance under section 51A of CAA 2001 is to be calculated as if the period beginning with the relevant date and ending with the end of the chargeable period were the chargeable period.
(3)The relevant date is—
(a)for corporation tax purposes, 1 April 2008, and
(b)for income tax purposes, 6 April 2008.