“ 26A – Disallowance of input tax where consideration not paid (1) Where – (a) a person has become entitled to credit for any input tax, and (b) the consideration for the supply to which that input tax relates, or any part of it, is unpaid at the end of the period of six months from the relevant date, he shall be taken, as from the end of that period, not to have been entitled to credit for input tax in respect of the VAT that is referable to the unpaid consideration or part. (2) For the purposes of subsection (1) above, “the relevant date”, in relation to any sum representing consideration for a supply, is – (a) the date of the supply, or (b) if later, the date on which the sum became payable.”