After section 88(5) of the Duties Act 2000 insert —
"(6) For the purposes of this section—
(a) a reference to a vendor includes a reference to a person who, at the time of a relevant acquisition, was the grantee of a put option or grantor of a call option;
(b) a reference to a purchaser includes a reference to a person who, at the time of a relevant acquisition—
(i) held a transfer right (within the meaning of Part 4A of Chapter 2); or
(ii) was the grantor of a put option or grantee of a call option;
(c) a reference to an uncompleted agreement includes a reference to an arrangement that includes both a put option and a call option.".