According to the Federal Fiscal Court, (decision of 16.05.2018 – XI R 28/16), any correction of VAT liability in accordance with sec 14c para 1 sentence 2 of the German VAT Act (= sec. 203 of the VAT Directive) requires, in addition to the correction of the invoice, that the supplier has paid back the wrongfully invoiced VAT amount to the customer. In the absence of such a repayment, the supplier would be unjustly enriched. For taxable persons this means that they often have to pre-finance the respective VAT amount. Further, they may declare the correction of their VAT liability to the tax office only during the reporting period of the repayment not earlier. However, there are still likely to be constellations where a repayment to the customer is irrelevant.
more