" HMRC were in possession [of two specified emails] by, at the latest,9 November 2012 ... and under section 29 TMA 1970 should have raised the assessment within twelve months of that date and not almost three years later on25 September 2015 ' ; (2) The result sought by the Appellant in his Notice of Appeal is a decision "
" Assessment where loss of tax discovered (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... 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 further amount, which ought in his or their opinion to be charged in order to make good to the Crown the loss of tax"
" Loss of tax brought about carelessly or deliberately (1) An assessment on a person in a case involving a loss of income tax or capital gains tax brought about carelessly by the person may be made at any time not more than 6 years after the end of the year of assessment to which it relates (subject to subsection (1A) and any other provision of the Taxes Acts allowing a longer period. (1A) An assessment on a person in a case involving a loss of income tax or capital gains tax - [...] (b) attributable to a failure by the person to comply with an obligation under section 7, [...] may be made at any time not more than 20 years after the end of the year of assessment to which it relates (subject to any provision of the Taxes Acts allowing a longer period)"