“ii) The next level of sophistication involves both an import and an export. A trader once again imports goods from another Member State. No VAT is payable on the import. Typically the goods are high value low volume goods, such as computer chips or mobile phones. He then sells on those goods to a domestic buyer and charges VAT. He dishonestly fails to account for the VAT to HMRC and disappears. The domestic buyer sells on to an exporter at a price which includes VAT. The exporter exports the goods to another Member State. The export is zero-rated. So the exporter is, in theory, entitled to deduct the VAT that he paid from what would otherwise be his liability to account to HMRC for VAT on his turnover. If he has no output tax to offset against his entitlement to deduct, he is, in theory, entitled to a payment from HMRC. Thus HMRC directly parts with money. Sometimes the exported goods are re-imported and the process begins again. In this variant the fraud is known as a carousel fraud. There may be many intermediaries between the original importer and the ultimate exporter. These intermediaries are known as "buffers". The ultimate exporter is labelled a "broker". A chain of transactions in which one or more of the transactions is dishonest has conveniently been labelled a "dirty chain". Where HMRC investigate and find a dirty chain they refuse to repay the amount reclaimed by the ultimate exporter.”
“iii) In order to disguise the existence of a dirty chain, fraudsters have become more sophisticated. They have conducted what HMRC call "contra-trading". The trader who would have been the exporter or broker at the end of a dirty chain, with a claim to repayment of input tax, himself imports goods (which may be different kinds of goods) from another Member State. Because this is an import he acquires the goods without having to pay VAT. This is the contra-trade. He sells on the newly acquired goods, charging VAT but this output tax is offset against his input tax, resulting in no payment (or only a small payment) to HMRC. The buyer of the newly acquired goods exports them and reclaims his own input tax from HMRC. Again there may be intermediaries or buffers between the contra-trader and the ultimate exporter. The fraudsters' hope is that if HMRC investigate the chain of transactions culminating in the export, they will find that all VAT has been properly accounted for. This chain of transactions has conveniently been called the "clean chain". Thus the theory is that an investigation of the clean chain will not find out about the dirty chain, with the result that HMRC will pay the reclaim of VAT on the export of the goods which have progressed through the clean chain. I should add that HMRC do not agree with the label "clean chain" because they say that both chains are part of an overall fraudulent scheme.”
“where it is ascertained, having regard to objective factors, that the supply is to a taxable person who knew or should have known that, by his purchase, he was participating in a transaction connected with fraudulent evasion of VAT, it is for the national court to refuse that taxable person entitlement to the right to deduct.”
“The true principle to be derived from Kittel does not extend to circumstances in which a taxable person should have known that by his purchase it was more likely than not that his transaction was connected with fraudulent evasion. But a trader may be regarded as a participant where he should have known that the only reasonable explanation for the circumstances in which his purchase took place was that it was a transaction connected with such fraudulent evasion.”
“If he [the taxable person] has the means of knowledge available and chooses not to deploy it he knows that, if found out he will not be entitled to deduct. If he chooses to ignore obvious inferences from the facts and circumstances in which he has been trading, he will not be entitled to deduct.”
“[27] By its questions, which must be considered together, the referring court asks essentially whether, where a recipient of a supply of goods is a taxable person who did not and could not know that the transaction concerned was part of a fraud committed by the seller, Article 17 of the Sixth Directive must be interpreted as meaning that it precludes a rule of national law under which ….that taxable person to lose his right to deduct that tax.”
“[56] In the same way, a taxable person who knew or should have known that, by his purchase, he was taking part in a transaction connected with fraudulent evasion of VAT must, for the purposes of the Sixth Directive, be regarded as a participant in that fraud, irrespective of whether or not he profited by the resale of the goods. [57] That is because in such a situation the taxable person aids the perpetrators of the fraud and becomes their accomplice.”