PART ICustoms and Excise and Value Added Tax
5Value added tax-time of supply
Part I of the M1Finance Act 1972 (and in particular section 7(8) shall have effect as if references to cases where—
(a)
goods or services are supplied for a consideration the whole or part of which is determined or payable periodically or at the end of any period ; or
(b)
goods are supplied for a consideration the whole or part of which is determined at the time when the goods are appropriated for any purpose; or
(c)
goods are supplied on hire for any period ; or
(d)
services are supplied for any period,
included cases where the supply took place or began before the passing of that Act.