“(a) first, which freedoms need to be considered in relation to the application of the Group Transfer Rules to the relevant Disposal? Is it the freedom of establishment set out in Article 49 of the TFEU or the freedom to move capital in Article 63 of the TFEU or both? (b) secondly, if one or both of the freedoms needs or need to be considered, do the Group Transfer Rules create a restriction on the relevant freedom or freedoms? (c) thirdly, if the Group Transfer Rules create a restriction on the relevant freedom or freedoms, can that restriction be justified on the basis that the circumstances of the transferee in the particular case are not objectively comparable to those which would have pertained if the transferee had been within the UK tax net? (d) fourthly, if the Group Transfer Rules create a restriction on the relevant freedom or freedoms and the restriction cannot be justified on the basis of the lack of objective comparability, is the relevant restriction justified by overriding reasons in the public interest – namely, the balanced allocation of taxing powers between Member States? (e) fifthly, if the relevant restriction on the freedom is justified, is the restriction proportionate – that is to say, does it go beyond what is necessary to achieve the objective of preserving the balanced allocation of taxing powers? and (f) sixthly, if the relevant restriction on the freedom is not proportionate, how should the UK courts respond to the disproportionate restriction on the freedom which is created by the legislation? In other words, is it possible for the UK courts to adopt a conforming interpretation of any part of the UK legislation in order to achieve compliance with EU law or should some part of the UK legislation be disapplied, whether in whole or in part, in order to achieve that compliance?”
“That test was considered recently by Judge Berner in Capernwray Missionary Fellowship of Torchbearers v HMRC[2015] UKUT 368 ('Capernwray'). In that case the parties applied jointly to the Upper Tribunal before the substantive hearing of the taxpayer's appeal for the Judge to make a reference to the CJEU. Judge Berner referred to the authoritative summary of the approach to be adopted by courts and tribunals in considering whether to make a reference by Sir Thomas Bingham MR in R v International Stock Exchange of the United Kingdom and the Republic of Ireland Ltd ex parte Else (1982) Ltd and another[1993] QB 534 ('Else '). At p 545 Lord Bingham said: ‘… I understand the correct approach in principle of a national court (other than a final court of appeal) to be quite clear: if the facts have been found and the Community law issue is critical to the court's final decision, the appropriate course is ordinarily to refer the issue to the Court of Justice unless the national court can with complete confidence resolve the issue itself. In considering whether it can with complete confidence resolve the issue itself the national court must be fully mindful of the differences between national and Community legislation, of the pitfalls which face a national court venturing into what may be an unfamiliar field, of the need for uniform interpretation throughout the Community and of the great advantages enjoyed by the Court of Justice in construing Community instruments. If the national court has any real doubt, it should ordinarily refer. I am not here attempting to summarise comprehensively the effect of such leading cases as H. P. Bulmer Ltd. v. J. Bollinger S.A.[1974] Ch. 401 , C.I.L.F.I.T. (S.r.l.) v. Ministry of Health (Case 283/81) [1982] E.C.R. 3415 and Reg. v. Pharmaceutical Society of Great Britain, Ex parte Association of Pharmaceutical Importers [1987] 3 C.M.L.R. 951, but I hope I am fairly expressing their essential point.’ ”