"29(1) If an officer of the Board or the Board discover, as regards any person (the taxpayer) and a year of assessment – (a) that any income which ought to have been assessed to income tax, or chargeable gains which ought to have been assessed to capital gains tax, have not been assessed, or (b) that an assessment to tax is or has become insufficient, or (c) that any relief which has been given is or has become excessive, the officer or, as the case may be, the Board may, subject to subsections (2) and (3) below, make an assessment in the amount, or the further amount, which ought in his or their opinion to be charged in order to make good to the Crown the loss of tax."
" The law relating to the determination of issues as preliminary issues 9. It is clear from the decision from the decision of the Court of Appeal in Hargreaves v Revenue and Customs Commissioners[2016] EWCA Civ 174 that an appellant does not have an automatic right to have the issue of the validity of the assessments tested as a preliminary issue. However, it is also clear that the Tribunal has a discretion, as a matter of case management, to direct that an issue be determined as a preliminary issue. The Upper Tribunal has, in Wrottesley v Revenue and Customs Commissioners[2016] STC 1123 given guidance as to how this Tribunal should exercise its case management discretion in paragraph [28] of the decision which reads as follows: We think that the key principles to consider can be summarised as follows: (1) The matter should be approached on the basis that the power to deal with matters separately at a preliminary hearing should be exercised with caution and used sparingly. (2) The power should only be exercised where there is a 'succinct, knockout point' which will dispose of the case or an aspect of the case. In this context an aspect of the case would normally mean a separate issue rather than a point which is a step in the analysis in arriving at a conclusion on a single issue. In addition, if there is a risk that determination of the preliminary issue may prove to be irrelevant then the point is unlikely to be a 'knockout' one. (3) An aspect of the requirement that the point must be a succinct one is that it must be capable of being decided after a relatively short hearing (as compared to the rest of the case) and without significant delay. This is unlikely if (a) the issue cannot be entirely divorced from the evidence and submissions relevant to the rest of the case, or (b) if a substantial body of evidence will require to be considered. This point explains why preliminary questions will usually be points of law. The tribunal should be particularly cautious on matters of mixed fact and law. (4) Regard should be had to whether there is any risk that determination of the preliminary issue could hinder the tribunal in arriving at a just result at a subsequent hearing of the remainder of the case. This is clearly more likely if the issues overlap in some way—see (3)(a), above. (5) Account should be taken of any potential for overall delay, making allowance for the possibility of a separate appeal on the 5 preliminary issue. (6) The possibility that determination of the preliminary issue may result in there being no need for a further hearing should be considered. (7) Consideration should be given to whether determination of the preliminary issue would significantly cut down the cost and time required for pre-trial preparation or for the trial itself, or whether it could in fact increase costs overall. (8) The tribunal should at all times have in mind the overall objective of the tribunal rules, namely to enable the tribunal to deal with cases fairly and justly."
"In any event, HMRC have to prove that a conclusion was reached and that it was reasonable and "new"
"….. even if Miss Carson could be regarded as having made the discovery as early as July 2012, in these circumstances we do not regard the passage of time from then until the issue of the discovery assessment on23 February 2013 as sufficient for the conclusion to have lost its "newness"."
"The appellant believes that the [assessments] should be dismissed for a number of reasons, including that they depend on "discovery" and "dishonesty" both of which are challenged and denied."