Schedule 4, Part 5 Interpretation of references to "beneficial interest" (paras. 24-27)
Residual interests under pension and employees’ share schemes
(1) Where shares in an undertaking are held on trust for the purposes of a pension scheme or an employees’ share scheme, there must be disregarded any residual interest which has not vested in possession, being an interest of the undertaking or any of its subsidiary undertakings.
(2) In this paragraph a "residual interest" means a right of the undertaking in question (the "residual beneficiary") to receive any of the trust property in the event of -
(a) all the liabilities arising under the scheme having been satisfied or provided for, or
(b) the residual beneficiary ceasing to participate in the scheme, or
(c) the trust property at any time exceeding what is necessary for satisfying the liabilities arising or expected to arise under the scheme.
(3) In sub-paragraph (2) references to a right include a right dependent on the exercise of a discretion vested by the scheme in the trustee or any other person; and references to liabilities arising under a scheme include liabilities that have resulted or may result from the exercise of any such discretion.
(4) For the purposes of this paragraph a residual interest vests in possession -