“80. Recovery of overpaid VAT (1) Where a person has (whether before or after the commencement of this Act) paid an amount to the Commissioners by way of VAT which was not VAT due to them, they shall be liable to repay the amount to him. (2) The Commissioners shall only be liable to repay an amount under this section on a claim being made for the purpose. … (4) The Commissioners shall not be liable, on a claim made under this section, to repay any amount paid to them more than three years before the making of the claim. … (7) Except as provided by this section, the Commissioners shall not be liable to repay an amount paid to them by way of VAT by virtue of the fact that it was not VAT due to them.”
“… (4) No amount may be claimed under this section after the expiry of six years from the date on which it was paid, except where subsection 5 (below) applies. (5) Where an amount has been paid to the Commissioners by reason of a mistake, a claim for the repayment of the amount under this section may be made at any time before the expiry of six years from the date on which the claimant discovered the mistake or could with reasonable diligence have discovered it.”
“Exceptions to the three year time limit. There is no time limit for correcting the following types of errors: simple duplication of output tax: tax point errors, that is where you have declared an amount of VAT on the return which immediately precedes or follows the return for which the amount was due. ” simple duplication of output tax: tax point errors, that is where you have declared an amount of VAT on the return which immediately precedes or follows the return for which the amount was due. ”
“23. It should be borne in mind that, according to settled case-law of the Court, the right to a refund of charges levied in a Member State in breach of rules of Community law is the complement of the rights conferred on individuals by the Community provisions prohibiting charges having an effect equivalent to customs duties or, as the case may be, the discriminatory application of domestic charges, as interpreted by the Court of Justice. The Member State is therefore required in principle to repay charges levied in breach of Community law. 24. However, the Court has also observed on several occasions that the problem of disputing charges which have been unlawfully claimed or refunding charges which have been paid when not due is settled in different ways in the various Member States, and even within a single Member State, according to the various kinds of taxes or charges in question…. 25. This diversity between national systems derives mainly from the lack of Community rules on the refund of national charges levied through not due. In such circumstances, it is for the domestic legal system of each Member State to designate the courts and tribunals having jurisdiction and to lay down the detailed procedural rules governing actions for safeguarding rights which individuals derive from Community law, provided, first, that such rules are not less favourable than those governing similar domestic actions (principle of equivalence) and, second, that they do not render virtually impossible or excessively difficult the exercise of rights conferred by Community law (principle of effectiveness).”