The General Court held that good faith protection, in the context of the margin scheme (reliance on information provided by the supplier), must be taken into account in the tax assessment procedure and not only in a separate equitable relief procedure. The German practice of referring taxable persons to a separate equitable relief procedure is contrary to the EU principle of effectiveness. The significance of the judgment is likely to extend beyond the margin scheme and may also affect other areas in which German VAT law does not expressly provide for good faith protection. Such cases would include the deduction of input VAT, Reemtsma-type direct refund claims, export supplies and liabilities of unduly charged VAT.