“36 Loss of tax brought about carelessly or deliberately etc (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). … (1B) In subsections (1) and (1A), references to a loss brought about by the person who is the subject of the assessment include a loss brought about by another person acting on behalf of that person.”
“The discovery assessments under appeal for 2006/07 were made to prevent the loss of tax brought about by the appellants’ careless behaviour. As such the onus of proof rests on HMRC. For the reasons set out above HMRC argue that these assessments have been validly made and are necessary because of the situation arising clearly brought about by appellants’ careless behaviour. The Standard of Proof...”
“371. Our conclusion then is that Mr Weir’s, and to a lesser extent Mr Russell’s, careless conduct brought about a tax loss and it follows that the assessments on both [Mr and Mrs Ritchie] (as Mr Weir was acting for [Mrs Ritchie] when he completed her tax return) were made within the time allowed by s 36(1) TMA, and that the condition in s 29(4) TMA is met.”
“There is a venerable principle of tax law to the general effect that there is a public interest in taxpayers paying the correct amount of tax, and it is one of the duties of the commissioners [the predecessors of the FTT] in exercise of their statutory functions to have regard to that public interest. [The judge then considered changes in the tax system and continued] For present purposes, however, it is enough to say that the principle still has at least some residual vitality in the context of section 50, and if the commissioners [that is to say now the FTT] are to fulfil their statutory duty under that section they must in my judgment be free in principle to entertain legal arguments which played no part in reaching the conclusions set out in the closure notice. Subject always to the requirements of fairness and proper case management, such fresh arguments may be advanced by either side, or may be introduced by the commissioners on their own initiative.”