“In relation to the period before1 January 1978 , does a taxable person have a directly effective right under Article 8(a) of the Second Council Directive of11 April 1967 (67/228/EEC), and/or the principles of fiscal neutrality and of equal treatment, to treat the basis of assessment of a supply of goods as retrospectively reduced where, after the time of that supply of goods, the recipient of the supply received a credit from the supplier which the recipient then elected either to take as a payment of money, or as a credit against amounts owed to the supplier in respect of supplies of goods to the recipient that had already taken place.”
“By its question, the referring tribunal asks, in essence, whether art 8(a) of the Second Directive must be interpreted as conferring upon a taxable person the right to treat the basis of assessment of a supply of goods as retrospectively reduced where, after the time of that supply of goods, an agent received a credit from the supplier which the agent elected to take either as a payment of money or as a credit against amounts owed to the supplier in respect of supplies of goods that had already taken place.”
“Therefore, neither art 8(a) nor any other article of the Second Directive could be interpreted as meaning that regularisation of the basis of assessment, or of the output tax, after delivery—which is when the chargeable event took place—had to be permitted.”
“28. As regards, next, the principle of fiscal neutrality, it is to be noted that this principle, which constitutes a fundamental principle of the common system of VAT, is the reflection in the field of VAT of the principle of equal treatment (see, to this effect, Marks & Spencer plc v Revenue and Customs Comrs (Case C-309/06 )[2008] STC 1408 ,[2008] ECR I-2283 , para 47). One of the consequences of this principle is that taxable persons must not be treated differently in respect of similar supplies which are in competition with each other (see, to this effect, Solleveld v Staatssecretaris van Financien (Cases C-443/04 and C-444/04 )[2007] STC 71 ,[2006] ECR I-3617 , para 39 and the case law cited). 29. The principle of fiscal neutrality is not a rule of primary law which enables on its own the basis of assessment within the meaning of art 8(a) of the Second Directive to be determined (see, to this effect, Finanzamt Steglitz v Zimmermann (Case C-174/11 ) (15 November 2012 , unreported), para 50 and the case law cited). Nor can it make up for the fact that the Second Directive does not include any provision comparable to art 11C(1) of the Sixth Directive. 30. Under the same principle in its other sense, the amount of VAT to be collected by the tax authority must correspond exactly to the amount of VAT declared on the invoice and paid by the final consumer to the taxable person ( Fiscale eenheid Koninklijke Ahold NV v Staatssecretaris van Financiën (Case C-484/06 )[2009] STC 45 ,[2008] ECR I-5097 , para 36 and the case law cited). 31. It is clear from the documents submitted to the court that, in the main proceedings, sub-customers, as the final consumers of the goods, had to pay the catalogue price for the goods which they purchased and did not receive any commission from the company. The commission was in fact required to be paid back to the agent and not to the sub-customer. In those circumstances, and by virtue of the principles recalled in the preceding paragraph, it must be held that the consideration for the supply corresponded to the full unreduced catalogue price and that the basis of assessment was therefore that price.”
“Article 8(a) of EC Council Directive 67/228 of11 April 1967 on the harmonisation of legislation of member states concerning turnover taxes—structure and procedures for application of the common system of value added tax must be interpreted as not conferring upon a taxable person the right to treat the basis of assessment of a supply of goods as retrospectively reduced where, after the time of that supply of goods, an agent received a credit from the supplier which the agent elected to take either as a payment of money or as a credit against amounts owed to the supplier in respect of supplies of goods that had already taken place.”
“39. First of all, it should be noted that the principle of fiscal neutrality resulting from the provisions of art 17(2) of the Sixth Directive implies that a taxable person may deduct all the VAT levied on goods and services acquired for the exercise of his taxable activities (see, to that effect, Nordania Finans A/S v Skatteministeriet (Case C-98/07 )[2008] STC 3314 ,[2008] ECR I-1281 , para 19). 40. In that regard, it is necessary to add that, according to settled case law, the principle of fiscal neutrality, and, in particular, the right to deduct, as an integral part of the VAT scheme, is a fundamental principle underlying the common system of VAT established by the relevant Community legislation (see Sosnowska v Dyrektor Izby Skarbowej we Wroclawiu Osrodek Zamiejscowy w Walbrzychu (Case C-25/07 )[2008] ECR I-5129 , paras 14 and 15, and PARAT Automotive Cabrio Textiltetoket Gyarto Kft v Ado – es Penzugyi Ellenorzesi Hivatal Hatosagi Foosztaly Eszak-magyarorszagi Kihelyezett Hatosagi Osztaly (Case C-74/08 )[2009] All ER (D) 215 (Apr) , para 15). 41. That principle of fiscal neutrality was intended by the Community legislature to reflect, in matters relating to VAT, the general principle of equal treatment (see, to that effect, Marks & Spencer plc v Revenue and Customs Comrs (Case C-309/06 )[2008] STC 1408 ,[2008] ECR I-2283 , para 49, and the case law cited). 42. However, while that latter principle, like the other general principles of Community law, has constitutional status, the principle of fiscal neutrality requires legislation to be drafted and enacted, which requires a measure of secondary Community law (see, by analogy, with regard to the protection of minority shareholders, Audiolux SA v Groupe Bruxelles Lambert SA (GBL) (Case C-101/08 )[2009] All ER (D) 236 (Oct) , para 63). 43. The principle of fiscal neutrality may, consequently, be the subject, in such a legislative measure, of detailed rules, such as those, implemented in Danish law, resulting from the application of art 19(1) in conjunction with art 28(3)(b) of the Sixth Directive, and point 16 of Annex F to that directive, according to which a taxable person carrying out both taxable activities and exempt activities of selling real estate cannot deduct fully the VAT on its general costs.”
“One of the consequences of the principle of fiscal neutrality, which is the reflection in the field of VAT of the principle of equal treatment, is that taxable persons must not be treated differently, with regard to the method of rounding applied when VAT is calculated, in respect of similar services which are in competition with each other (see, to that effect, Solleveld v Staatssecretaris van Financien (Cases C-443/04 and C-444/04 )[2007] STC 71 ,[2006] ECR I-3617 , para 35 and case law there cited). By virtue of the same principle, the amount of VAT to be collected by the tax authority must correspond exactly to the amount of VAT declared on the invoice and paid by the final consumer to the taxable person (see, to that effect, Elida Gibbs Ltd v Customs and Excise Comrs (Case C–317/94 )[1996] STC 1387 ,[1997] QB 499 , para 24).”