6(1)If, in the case of a dual resident investing company, either of the following conditions is fulfilled—
(a)that any interest or other payment which is, or is treated as, a charge on income falls due in a post-1986 accounting period but is paid (or treated for the purposes of section 338 as paid) in a 1986 accounting period, or
(b)that, on or after 5th December 1986, arrangements have been made such that any such interest or other payment which, but for the arrangements, would have fallen due in a post-1986 accounting period, fell due in a 1986 accounting period,
the interest or other payment shall, if the Board so direct, be treated for the purposes of this Chapter and, where appropriate, paragraph 3 above as paid in the post-1986 accounting period referred to in paragraph (a) or, as the case may be, paragraph (b) above.
(2)The Board shall not give a direction under this paragraph unless it appears to them that the sole or main benefit that might be expected to accrue from the early payment or, as the case may be, from the arrangements was that (apart from the direction) the interest or other payment would be attributed or apportioned to a 1986 accounting period rather than a post-1986 accounting period, so that, for the 1986 accounting period, the dual resident investing company would have an amount or, as the case may be, a larger amount available for surrender by way of group relief.