158.—(1) For the purposes of these Regulations an award ceases when entitlement to a jobseeker’s allowance ceases.
(2) When an award of a taxable jobseeker’s allowance ceases the Department must make a tax calculation in accordance with regulation 161 if the claimant’s code is used on the cumulative basis.
(3) The relevant date for the purposes of that calculation is the date on which the award ceases.
(4) The date on which the award ceases is the last day for which benefit was paid and was not recoverable, except that if the last day is 4th or 5th April the date is the preceding 3rd April.
(5) But the Department need not amend a tax calculation solely because the date used for the purposes of the calculation is subsequently shown to be incorrect.