“681B High income child benefit charge (1) A person (“P”) is liable to a charge to income tax for a tax year if— 10 (a) P's adjusted net income for the year exceeds£50,000 , and (b) one or both of conditions A and B are met. (2) The charge is to be known as a “high income child benefit charge”. (3) Condition A is that— 15 (a) P is entitled to an amount in respect of child benefit for a week in the tax year, and (b) there is no other person who is a partner of P throughout the week and has an adjusted net income for the year which exceeds that of P. 20 … 681H Other interpretation provisions (1) This section applies for the purposes of this Chapter. (2) “Adjusted net income” of a person for a tax year means the person's adjusted net income for that tax year as determined under 25 section 58 of ITA 2007. (3) “Week” means a period of 7 days beginning with a Monday; and a week is in a tax year if (and only if) the Monday with which it begins is in the tax year.”
“7 Notice of liability to income tax and capital gains tax (1) Every person who— (a) is chargeable to income tax or capital gains tax for any year of assessment, and 35 (b) falls within subsection (1A) or (1B), shall, subject to subsection (3) below, within the notification period, give notice to an officer of the Board that he is so chargeable. … 4 (3) A person shall not be required to give notice under subsection (1) above in respect of a year of assessment if for that year— (a) the person's total income consists of income from sources falling within subsections (4) to (7) below, (b) the person has no chargeable gains, and 5 (c) the person is not liable to a high income child benefit charge.”
“If any person, for any year of assessment, fails to comply with subsection (1) 30 above, he shall be liable to a penalty not exceeding the amount of the tax— (a) in which he is assessed under section 9 or 29 of this Act in respect of that year, and (b) which is not paid on or before the 31st January next following that year.”
“It is of course obvious that the tax payable as a result of the 30 assessment was unpaid on 31 January in each of the later years concerned.”
“While it may be true, as Henderson LJ said, that modern tax legislation in general is much more complex than at the time of Lord Dunedin’s classic statement, the purpose of the tax law rewrite was to restore a measure of simplicity and coherence to the principal tax 10 statutes. In any event, one does not need high judicial authority to make the obvious point that the first step in the imposition of a tax is to establish (in Lord Dunedin’s words) “what persons in respect of what property are liable”.”