"(4) Subject to subsections (7) to (11) below, if— (a) a taxable person on whom a surcharge liability notice has been served is in default in respect of a prescribed accounting period, (b) that prescribed accounting period is one ending within the surcharge period specified in (or extended by) that notice, and (c) the aggregate value of his defaults in respect of that prescribed accounting period is more than nil, that person shall be liable to a surcharge equal to whichever is the greater of£30 and the specified percentage of the aggregate value of his defaults in respect of that prescribed accounting period. (5) Subject to subsections (7) to (11) below, the specified percentage referred to in subsection (4) above shall be determined in relation to a prescribed accounting period by reference to the number of such periods during the surcharge period which are periods in respect of which the taxable person is in default and in respect of which the value of his defaults is more than nil, so that— (a) in relation to the first such prescribed accounting period, the specified percentage is 2 per cent.; (b) in relation to the second such period, the specified percentage is 5 per cent.; (c) in relation to the third such period, the specified percentage is 10 per cent.; and (d) in relation to each such period after the third, the specified percentage is 15 per cent."
" Ground 2: Decision We think that the argument for Dow Chemicals is correct on this point. The Commissioners are wrong because Dow Chemicals was not in law liable to a 5 per cent surcharge in relation to the 11/94 period or to a 10 per cent surcharge in relation to the 03/95 period. The assessments purporting to make Dow Chemicals so liable were both wholly invalid and so could not be reduced either in pursuance of section 76(9) or, more accurately we think, in exercise of the Commissioners' inherent power to reduce assessments. Our conclusion is based on three propositions. The first of these propositions is that each liability occasioned by each default is separate. A liability resulting from a second default in a surcharge period is distinct from a liability resulting from a third default. To use the words of Macpherson of Cluny J in Commissioners of Customs and Excise v Medway Draughting and Technical Services Limited[1989] STC 346 at p 351j, each "penalty" imposed by section 59, is "quite separate"
"(9) If an amount is an assessed and notified to any person under this section, then unless, or except to the extent that, the assessment is withdrawn or reduced, that amount should be recoverable as if it were VAT due from him."