“ Notifying appeal to tribunal after review concluded (1) This section applies if— (a) HMRC have given notice of the conclusions of a review in accordance with section 49E, or (b) the period specified in section 49E(6) has ended and HMRC have not given notice of the conclusions of the review. (2) The appellant may notify the appeal to the tribunal within the post-review period. (3) If the post-review period has ended, the appellant may notify the appeal to the tribunal only if the tribunal gives permission. (4) If the appellant notifies the appeal to the tribunal, the tribunal is to determine the matter in question. (5) In this section "post-review period" means— (a) in a case falling within subsection (1)(a), the period of 30 days beginning with the date of the document in which HMRC give notice of the conclusions of the review in accordance with section 49E(6)...”
“ Appeals: right of appeal (1) An appeal may be brought against— (a) … (b) any conclusion stated or amendment made by a closure notice under section 28A or 28B of this Act (amendment by Revenue on completion of enquiry into return)…”
“ Appeals: Notice of appeal ( 1) Notice of an appeal under section 31 of this Act must be given— (a) in writing, (b) within 30 days after the specified date, (c) to the relevant officer of the Board. (2)… (3) In relation to an appeal under section 31(1)(b) of this Act— (a) the specified date is the date on which the closure notice was issued, and (b) the relevant officer of the Board is the officer by whom the closure notice was given.”
“ Late notice of appeal (1) This section applies in a case where— (a) notice of appeal may be given to HMRC, but (b) no notice is given before the relevant time limit. (2) Notice may be given after the relevant time limit if— (a) HMRC agree, or (b) where HMRC do not agree, the tribunal gives permission. (3) If the following conditions are met, HMRC shall agree to notice being given after the relevant time limit. (4) Condition A is that the appellant has made a request in writing to HMRC to agree to the notice being given. (5) Condition B is that HMRC are satisfied that there was reasonable excuse for not giving the notice before the relevant time limit. (6) Condition C is that HMRC are satisfied that request under subsection (4) was made without unreasonable delay after the reasonable excuse ceased. (7) If a request of the kind referred to in subsection (4) is made, HMRC must notify the appellant whether or not HMRC agree to the appellant giving notice of appeal after the relevant time limit. (8) In this section "relevant time limit", in relation to notice of appeal, means the time before which the notice is to be given (but for this section).”
“Consideration of the merits of the case was an important part of the exercise of the commissioners' jurisdiction and a consideration of prejudice carried with it the question of whether the basic appeal was arguable, since the deprivation to a party of the opportunity of putting forward an arguable meritorious appeal was itself an obvious prejudice. That potential prejudice had to be balanced against a lack of explanation for delay on the part of the taxpayer in lodging his appeal and any prejudice to the Revenue and depriving of a party of the opportunity of putting forward an arguably meritorious appeal is itself an obvious prejudice.”