Regulation 4 Entitlement periods
(1)
A person's first entitlement period begins on the day on which HMRC confirm that the person is an eligible person for the entitlement period.
(2)
Each subsequent entitlement period begins on the day after the previous entitlement period ends.
(3)
Each entitlement period begins on the same day of a month except as follows—
(a)
if the first entitlement period begins or ends on the 31st day of a month, each subsequent entitlement period shall begin or end on the last day of the month; and
(b)
if the first entitlement period begins or ends on the 29th or 30th day of a month, each subsequent entitlement period shall begin or end on the 29th or 30th day of the month, except in February where it begins or ends on the 27th day or, in a leap year, the 28th day.