““accounting period” is to be read in accordance with Chapter 2 of Part 2 of CTA 2009 …”
“ Beginning of accounting period 9 (1) An accounting period of a company begins— … ( b ) immediately after the end of the previous accounting period of the company … … (5) This section is subject to any provision of the Corporation Tax Acts which provides for an accounting period of a company to which this section applies to begin at a different time. End of accounting period 10 (1) An accounting period of a company comes to an end on the first occurrence of any of the following— ( a ) the ending of 12 months from the beginning of the accounting period, ( b ) an accounting date of the company, …. (6) This section is subject to any provision of the Corporation Tax Acts which provides for an accounting period of a company to which this section applies to end at a different time.”
“the date to which a company makes up its accounts”
“ 100 Determination of penalties by officer of Board (1) … an officer of the Board authorised by the Board for the purposes of this section may make a determination imposing a penalty under any provision of the Taxes Acts and setting it at such amount as, in his opinion, is correct or appropriate. … (3) Notice of a determination of a penalty under this section shall be served on the person liable to the penalty and shall state the date on which it is issued and the time within which an appeal against the determination may be made. (4) After the notice of a determination under this section has been served the determination shall not be altered except in accordance with this section or on appeal. 100A Provisions supplementary to section 100 (2) A penalty determined under section 100 above shall be due and payable at the end of the period of thirty days beginning with the date of the issue of the notice of determination. (3) A penalty determined under section 100 above shall for all purposes be treated as if it were tax charged in an assessment and due and payable. 100B Appeals against penalty determinations (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, … 102 Mitigation of penalties 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. 118 Interpretation … (2) For the purposes of this Act, a person shall be deemed not to have failed to do anything required to be done within a limited time if he did it within such further time, if any, as the Board or the tribunal or officer concerned may have allowed; and 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 …”
“ 31A 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. … (4) In relation to an appeal under section 31(1)(d) of this Act … ( a ) the specified date is the date on which the notice of assessment was issued, and ( b ) the relevant officer of the Board is the officer by whom the notice of assessment was given. ( 5) The notice of appeal must specify the grounds of appeal.”
“Schedule 18 to thisAct, the Taxes Management Act 1970 and the Tax Acts shall be construed and have effect as if that Schedule were contained in that Act.”