“The essence of the new approach was to give the statutory provision a purposive construction in order to determine the nature of the transaction to which it was intended to apply and then to decide whether the actual transaction (which might involve considering the overall effect of a number of elements intended to operate together) answered to the statutory description. Of course this does not mean that the courts have to put their reasoning into the straitjacket of first construing the statute in the abstract and then looking at the facts. It might be more convenient to analyse the facts and then ask whether they satisfy the requirements of the statute. But however one approaches the matter, the question is always whether the relevant provision of statute, upon its true construction, applies to the facts as found. As Lord Nicholls of Birkenhead said in MacNiven v Westmoreland Investments Ltd[2003] 1 AC 311 , 320, para 8: "The paramount question always is one of interpretation of the particular statutory provision and its application to the facts of the case." ”
“(vi) However, the more comprehensively Parliament sets out the scope of a statutory provision or description, the less room there will be for an appeal to a purpose which is not the literal meaning of the words. (This, I think, is what Arden LJ meant in Astall v HMRC (§ 34). As Lord Hoffmann put it in an article on Tax Avoidance: “It is one thing to give a statute a purposive construction. It is another to rectify the terms of highly prescriptive legislation in order to include provisions which might have been included but are not actually there”: See Mayes v HMRC[2010] STC 1 (§ 30)).”