Italy's Cassazione clarifies VAT refund and declaration rules

The Italian Supreme Court (Cassazione) has issued rulings clarifying the distinction between the formal validity of tax documents and the substantive recognition of tax credits or corrections.

In a case involving a bingo operator, the Court ruled that the definitive annulment of a tax assessment does not automatically grant a taxpayer the right to an VAT refund. The assessment was annulled due to procedural expiration of the administration's power to assess, rather than a judicial review of the credit's actual existence. Consequently, the taxpayer could not claim the refund through a compliance judgment without proving the underlying credit.

In a separate ruling regarding supplementary VAT declarations, the Court confirmed that such declarations remain valid even if submitted after a notice of irregularity, provided they are within legal timeframes. However, the Court emphasized that formal validity does not equate to substantive correctness. When a supplementary declaration significantly alters previously reported data—such as erasing a substantial tax debt—the taxpayer bears the burden of proof to demonstrate the error's origin and ensure the new data aligns with accounting records and other fiscal documentation.