Paragraph 27

a F1registered person makes a return under provision made under section 49 of this Act (whether or not he makes it at the time required by such provision), and

the return shows that an amount of tax is due from him for the accounting period in relation to which the return is made.

begins with the day after that on which the person is required by provision made under section 49 of this Act to pay tax due from him for the accounting period, and

ends with the day before that on which the amount is paid.

under section 50(1) of this Act the Commissioners assess an amount of tax due from a F2registered person person for an accounting period and notify it to him, and

the assessment is made on the basis that no return required by provision made under section 49 of this Act has been made by the person in relation to the accounting period.

begins with the day after that on which the person is required by provision made under section 49 of this Act to pay tax due from him for the accounting period, and

ends with the day before that on which the amount is paid.

under section 50(1) of this Act the Commissioners assess an amount of tax due from a F3registered person for an accounting period and notify it to him, and

the assessment (the supplementary assessment) is made on the basis that the amount (the additional amount) is due from him in addition to any amount shown in a return, or in any previous assessment, made in relation to the accounting period.

begins with the day on which the supplementary assessment is notified to the person, and

ends with the day before that on which the additional amount is paid.

begins with the day on which the assessment is notified to the person, and

ends with the day before that on which the amount is paid.

begins with the day (or the last day of the period) notified under section 50A(2)(b), and

ends with the day before that on which the amount is paid.

assess an amount due from a person by way of penalty under Part V of this Schedule F6or under Schedule 41 to the Finance Act 2008 and notify it to him, or

assess an amount due from a person by way of interest under paragraph 26 above and notify it to him.

begins with the day on which the assessment is notified to the person, and

ends with the day before that on which the amount is paid.

at the penalty rate, and

with monthly rests;

the Commissioners assess and notify an amount as mentioned in sub-paragraph (5)(a) or (7) F7or (8A) or (9)(a) or (b) above,

they also specify a date for the purposes of this sub-paragraph, and

the amount concerned is paid on or before that date,

an amount carries interest under this paragraph (or would do so apart from that sub-paragraph), and

all or part of the amount turns out not to be due.

the amount or part (as the case may be) shall not carry interest under this paragraph and shall be treated as never having done so, and

all such adjustments as are reasonable shall be made, including adjustments by way of repayment by the Commissioners where appropriate.