(1)In the case of a person who has an absolute interest in the whole of the residue of an estate for a whole tax year, the person's share of the residuary income of the estate in respect of that interest for that year is equal to the whole of that income for that year.
(2)In the case of a person who—
(a)has an absolute interest in the whole of the residue of an estate for part of the tax year, or
(b)an absolute interest in part of the residue of an estate for the whole or part of the tax year,
the person's share of the residuary income of the estate is a proportionate part of that income for that year.
(3)This section is subject to section 668 (reduction in share of residuary income of estate).