In a decision which had been given little attention up to now, the Federal Fiscal Court tightened the requirements for the deduction of input VAT from invoices. The Court held that taxable persons cannot deduct input VAT from invoices only showing the supplier’s P.O. box address. In this context, the Federal Fiscal Court indicated that this reasoning is also applicable in cases where the P.O. box address of the recipient of the supply is stated on the invoice. The judgement may have far-reaching effects, in particular for German companies.