(1) Nationals of a Contracting State shall not be subjected in the other Contracting State to any taxation or any requirement connected therewith, which is other or more burdensome than the taxation and connected requirements to which nationals of that other State in the same circumstances are or may be subjected.
(2) The taxation on a permanent establishment which an enterprise of a Contracting State has in the other Contracting State shall not be less favourably levied in that other State than the taxation levied on enterprises of that other State carrying on the same activities.
This provision shall not be construed as obliging one of the States to grant to residents of the other State any personal deductions, reliefs and reductions for taxation purposes on account of civil status or family responsibilities or other personal circumstances, which it grants only to its own residents.
(3) Except where the provisions of Article 9, paragraph (6) of Article 11, or paragraph (5) of Article 12 apply, interest, royalties and other disbursements paid by an enterprise of a Contracting State to a resident of the other Contracting State shall, for the purposes of determining the taxable profits of that enterprise, be deductible under the same conditions as if they had been paid to a resident of the first-mentioned State.
(4) Enterprises of a Contracting State, the capital of which is wholly or partly owned or controlled, directly or indirectly, by one or more residents of the other Contracting State, shall not be subjected in the first-mentioned State to any taxation or any requirement connected therewith which is other or more burdensome than the taxation and connected requirements to which other similar enterprises of the first-mentioned State are or may be subjected.