(1) Subject to the provisions of Articles 15, 17 and 18, salaries, wages and other similar remuneration derived by a resident of a Contracting State in respect of an employment shall be taxable only in that State unless the employment is exercised in the other Contracting State. If the employment is so exercised, such remuneration as is derived therefrom may be taxed in that other State.

(2) Notwithstanding the provisions of paragraph (1), remuneration derived by a resident of a Contracting State in respect of an employment exercised in the other Contracting State shall be taxable only in the first-mentioned State if all the following conditions are met:

• (a) the recipient exercises the employment in the other State for a period or periods not exceeding in the aggregate 183 days in any twelve-month period commencing or ending in the fiscal year concerned, and
• (b) the remuneration is paid by, or on behalf of, an employer who is not a resident of the other State, and
• (c) the remuneration is not borne by a permanent establishment which the employer has in the other State.

(3) In the computation of the periods mentioned in sub-paragraph (a) of paragraph (2), the following days shall be included:

• (a) all days of physical presence including days of arrivals and departures, and
• (b) days spent outside the State of activity such as weekends, national holidays, holidays, and business trips directly connected with the employment of the recipient in that State, after which the activity was resumed in the territory of that State.

(4) The term “employer” mentioned in sub-paragraph (b) of paragraph (2) means the person having right on the work produced and bearing the responsibility and risk connected with the performance of the work.

(5) Notwithstanding the preceding provisions of this Article, remuneration derived in respect of an employment exercised aboard a ship or aircraft operated by an enterprise of a Contracting State in international traffic, may be taxed in that State.