“49 Late notice of appeal 49(1) This section applies in a case where- notice of appeal may be given to HMRC, but no notice is given before the relevant time. 49(2) Notice may be given after the relevant time limit if- HMRC agree, or where HMRC do not agree, the tribunal gives permission. 49(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).”