9(1)The amendments made by this Schedule have effect where the actual accrual period (within the meaning of Chapter 8 of Part 5 of CTA 2009), or the relevant period (within the meaning of section 407(1) or 409(1) of that Act), begins on or after 1 April 2009.U.K.
(2)But a company may elect that any or all of the amendments made by this Schedule do not have effect in relation to the first accounting period for which they would otherwise apply.
(3)However, no election may be made under sub-paragraph (2) in relation to an accounting period ending after 31 March 2011.
(4)An election under sub-paragraph (2) must be made in the corporation tax return for the accounting period in relation to which the election is to have effect.