“23(2)(b) where P relies on any other person to do anything, that is not a reasonable excuse unless P took reasonable care to avoid the failure, and (2)(c) where P had a reasonable excuse for the failure but the excuse has ceased, P is to be treated as having continued to have the excuse if the failure is remedied without unreasonable delay after the excuse ceased.”
“(1) An appeal may be brought against the determination of a penalty under section 100 above and, subject to the following provisions of this section, the provisions of this Act relating to appeals shall have effect in relation to an appeal against such a determination as they have effect in relation to an appeal against an assessment to tax except that references to the tribunal shall be taken to be references to the First-tier Tribunal. (2) On an appeal against the determination of a penalty under section 100 above section 50(6) to (8) of this Act shall not apply but-- ( a ) in the case of a penalty which is required to be of a particular amount, the First-tier Tribunal may-- (i) if it appears that no penalty has been incurred, set the determination aside, (ii) if the amount determined appears to be correct, confirm the determination, or (iii) if the amount determined appears to be incorrect, increase or reduce it to the correct amount ...”
“... where a person had a reasonable excuse for not doing anything required to be done he shall be deemed not to have failed to do it unless the excuse ceased and, after the excuse ceased, he shall be deemed not to have failed to do it if he did it without unreasonable delay after the excuse had ceased.”
“The Board may in their discretion mitigate any penalty, or stay or compound any proceedings for a penalty, and may also, after judgment, further mitigate or entirely remit the penalty.”
“Where an Act authorises or requires any document to be served by post (whether the expression ‘serve’ or the expression ‘give’ or ‘send’ or any other expression is used) then, unless the contrary intention appears, the service is deemed to be effected by properly addressing, pre-paying and posting a letter containing the document and, unless the contrary is proved, to have been effected at the time at which the letter would be delivered in the ordinary course of post.”
“One must ask oneself: was what the taxpayer did a reasonable thing for a responsible trader conscious of and intending to comply with his obligations regarding tax, but having the experience and other relevant attributes of the taxpayer and placed in the situation that the taxpayer found himself at the relevant time, a reasonable thing to do?”