The Court of Justice has given a judgment in the case Glencore Agriculture Hungary.
EU law must be interpreted as precluding national legislation, such as that at issue in the main proceedings, under which, where a tax investigation procedure is initiated by a tax authority and where a taxable person is fined for failure to cooperate, the date of the refund of overpaid value added tax may be delayed until the formal report on that investigation is delivered to the taxable person and the payment of default interest may be refused, even where the duration of the tax investigation procedure is excessive and cannot be attributed entirely to the conduct of the taxable person.
3