“SUMMARY OF ESSENTIAL FACTUAL AND LEGAL BACKGROUND [7]The Finance Act 2003 introduced SDLT in place of the old stamp duty. Section 42 provided for SDLT to be payable on ‘land transactions’, which were defined by s 43. Section 44 then defined when a land transaction was to be treated as having been entered into, dealing in particular with the distinction between contract and conveyance.The Finance Act 2003 aimed to place the burden of SDLT on the person who was to acquire the use and enjoyment of the property in question, and to reduce that burden on those with only a transient interest in the property. These arrangements were set up by s 45 which applied where ‘(a) a contract for a land transaction (“the original contract”) is entered into under which the transaction is to be completed by a conveyance’ and ‘(b) there is an assignment, subsale, or other transaction … as a result of which a person other than the original purchaser becomes entitled to call for a conveyance to him’, referred to as a ‘transfer of rights’. Section 45(2) provided that ‘The transferee is not regarded as entering into a land transaction by reason of the transfer of rights, but section 44 … has effect in accordance with the following provisions of this section’. Section 45(3) then provided (originally) for s 44 to apply ‘as if there were a contract for a land transaction (a “secondary contract”) under which’ the transferee was the purchaser and the consideration was, in effect, that paid for that part of the property under the original contract and that paid for the transfer of rights. The key provision of s 45(3) then said that ‘[t]he substantial performance or completion of the original contract at the same time as, and in connection with, the substantial performance or completion of the secondary contract shall be disregarded’. As it seems to me, this provision thereby took the completion of the original contract in such circumstances out of the charge to tax under s 42”