(1)This section applies where an accelerated payment notice is given by virtue of section 219(2)(a) (notice given while a tax enquiry is in progress) (and not withdrawn).
(2)P must make a payment (“the accelerated payment”) to HMRC of the amount specified in the notice in accordance with section 220(2)(b).
(3)The accelerated payment is to be treated as a payment on account of the understated tax (see section 220).
(4)The accelerated payment must be made before the end of the payment period.
(5)“The payment period” means—
(a)if P made no representations under section 222, the period of 90 days beginning with the day on which the accelerated payment notice is given, and
(b)if P made such representations, whichever of the following periods ends later—
(i)the 90 day period mentioned in paragraph (a);
(ii)the period of 30 days beginning with the day on which P is notified under section 222 of HMRC’s determination.
(6)But where the understated tax would be payable by instalments by virtue of an election made under section 227 of IHTA 1984, to the extent that the accelerated payment relates to tax payable by an instalment which falls to be paid at a time after the payment period, the accelerated payment must be made no later than that time.
(7)If P pays any part of the understated tax before the accelerated payment in respect of it, the accelerated payment is treated to that extent as having been paid at the same time.
(8)Any tax enactment which relates to the recovery of a relevant tax applies to an amount to be paid on account of the relevant tax under this section in the same manner as it applies to an amount of the relevant tax.
(9)“Tax enactment” means provisions of or made under—
(a)the Tax Acts,
(b)any enactment relating to capital gains tax,
(c)IHTA 1984 or any other enactment relating to inheritance tax,
(d)Part 4 of FA 2003 or any other enactment relating to stamp duty land tax, or
(e)Part 3 of FA 2013 or any other enactment relating to annual tax on enveloped dwellings.