Judgment_paragraph 36 · FIRIN OOD v Direktor na Direktsia ‘Obzhalvane i danachno-osiguritelna praktika’ — Veliko Tarnovo pri Tsentralno upravlenie na Natsionalnata agentsia za prihodite (C-107/13)

36Thus, in order for VAT to become chargeable in such circumstances, all the relevant information concerning the chargeable event, namely, the future supply of goods or services, must already be known and therefore, in particular, the goods or services must be precisely identified at the time when the payment on account is made (to that effect, BUPA Hospitals and Goldsborough Developments, paragraph 48).