The transfer of properties is understood to have been made, for VAT purposes ( pursuant toart. 6 paragraph 1 of Presidential Decree 63/72), at the time of stipulation of the deed with which the transfer of ownership is ratified. However, if an advance of the price is paid, ‘in anticipation of the actual effects’, the operation will be deemed to have been carried out on the date of payment, albeit limited to the amount paid.
Source: eutekne.info
