In the past, the ECJ has often had to decide cases on VAT exempt intra-Community supplies. The most recent decision (decision of 14.06.2017 – legal case C-26/16), demonstrates an important procedural aspect: Where the tax authority has already examined the affected transactions and the existing documentation and did not object, it may not retroactively deny tax exemption due to the principle of legal certainty. This also applies beyond intra-Community supplies.
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