(1)Subject to the provisions of this section and Schedule 20, the financial year of building societies shall be the period of twelve months ending with 31st December.
(2)The initial financial year of a building society shall be such period as expires with the end of the calendar year in which it is established and the final financial year of a building society shall be such shorter period than twelve months as expires with the date as at which the society makes up its final accounts.
(3)A building society whose financial year does not, by virtue of the saving provisions of Schedule 20, end with 31st December may alter its financial year by making up its accounts for one period of more than 6 months, and not more than 18 months, ending with 31st December; and in relation to a building society exercising the power conferred by this subsection, references in this Act to a financial year of the society include references to that period.