28Payments on account of VAT
(1)The Treasury may make an order under this section if they consider it desirable to do so in the interests of the national economy.
(2)An order under this section may provide that a taxable person of a description specified in the order shall be under a duty—
(a)to pay, on account of any VAT he may become liable to pay in respect of a prescribed accounting period, amounts determined in accordance with the order, and
(b)to do so at such times as are so determined.
(3)Where an order is made under this section, the Commissioners may make regulations containing such supplementary, incidental or consequential provisions as appear to the Commissioners to be necessary or expedient.
(4)A provision of an order or regulations under this section may be made in such way as the Treasury or, as the case may be, the Commissioners think fit (whether by amending provisions of or made under the enactments relating to VAT or otherwise).
(5)An order or regulations under this section may make different provision for different circumstances.