'Period of account' is defined as a period for which accounts
are made up. For the purpose of FA97/Sch12/Para5 it does not
include any period prior to 26 November 1996 (paragraph 30(1)).
This ensured that the charge was not imposed retrospectively for
periods prior to the announcement of those measures on Budget Day
(26 November) 1996. By contrast, for the purpose of determining
whether a lease comes within Part I in the first place, there is no
such restriction (see
BLM70420)
