48In those circumstances, the Curtea de Apel Cluj (Court of Appeal, Cluj) decided to stay the proceedings and to refer the following questions to the Court of Justice for a preliminary ruling:(1) Can [the VAT Directive] in general, and Articles 9, 12, 14, 62, 63, 65, 73 and 78 in particular, be interpreted, in a specific context such as that of the dispute in the main proceedings, as meaning that, as regards the occurrence of the chargeable event in the case of taxable transactions involving the supply of immovable property and the method for determining the relevant taxable amount, natural persons who are parties to a contract relating to an association without legal personality concluded with the taxable person liable for tax on output transactions which it should have collected, also have the status of taxable person since the association contract was not registered with the tax authorities before the activity commenced but was presented to them before the administrative acts relating to taxation were issued?(2) Can [the VAT Directive] in general, and [Article 167, Article 168(a), Article 178(a) and Article 179] in particular, and the principles of proportionality and neutrality, be interpreted, in a specific context such as that of the dispute in the main proceedings, as:(a) recognising the possibility of conferring the right of deduction on a taxable person, where [that taxable person] does not owe tax or has not paid personally the input VAT on goods and services used in connection with the taxable transactions, and the VAT is due/paid at the preceding stage by natural persons in respect of whom the status of taxable persons has not been established, but who are parties to a contract relating to an association without legal personality concluded with the taxable person liable for tax on output transactions which [that taxable person] should have collected, since the association contract was not registered with the tax authorities before the activity commenced?(b) recognising the possibility of conferring the right of deduction on a taxable person, in a specific context such as that of the dispute in the main proceedings, where [that taxable person] does not owe tax or has not paid personally the input VAT on goods and services used in connection with the taxable transactions, and the VAT is due/paid at the preceding stage by a natural person in respect of whom the status of taxable person has been established, who is party to a contract relating to an association without legal personality and who, together with the taxable person, intends also to exercise, or could exercise, his [or her] own right of deduction, and the latter are liable for tax on output transactions which they should have collected, since the association contract was not registered with the tax authorities before the activity commenced?(3) In the event that the answer to the questions is in the negative and/or in the light of the principle of legal certainty: is a claim by the taxable person, which is liable for VAT and related charges, admissible against natural persons in respect of whom the status of taxable persons has not been established and who are parties to a contract relating to an association without legal personality concluded with the taxable person liable for tax on output transactions which [that taxable person] should have collected, since the association contract was not registered with the tax authorities before the activity commenced, in order to obtain the proportion of tax which was laid down for the distribution of profits accruing to those persons under the association contract in relation to the liability for VAT and related charges imposed on the taxable person?’