10. A payment by way of a conditional interest in shares where, at the time of payment—
(a)the earner is treated under section 203FB(4) of the Taxes Act (PAYE: gains from share options etc)(1) as having been provided with a further interest;
(b)that further interest would not for the purpose of section 140A of that Act, be treated as only conditional; and
(c)the conditional interest together with the further interest are not readily convertible assets.
Section 203FB was inserted by section 67 of the Finance Act 1998.