Artikel 27

1. Where a person considers that the actions of one or both of the Contracting States result or will result for him in taxation not in accordance with the provisions of this Convention, he may, irrespective of the remedies provided by the domestic law of those States, present his case to the competent authority of the Contracting State of which he is a resident or, if his case comes under paragraph 1 of Article 26 (Non-discrimination), to that of the Contracting State of which he is a national. The case must be presented within three years from the first notification of the action resulting in taxation not in accordance with the provisions of the Convention.
2. The competent authority shall endeavour, if the objection appears to it to be justified and if it is not itself able to arrive at a satisfactory solution, to resolve the case by mutual agreement with the competent authority of the other Contracting State, with a view to the avoidance of taxation which is not in accordance with the Convention. Any agreement reached shall be implemented notwithstanding any time limits in the domestic law of the Contracting States.
3. The competent authorities of the Contracting States shall endeavour to resolve by mutual agreement any difficulties or doubts arising as to the interpretation or application of the Convention. They may also consult together for the elimination of double taxation in cases not provided for in the Convention.
4. The competent authorities of the Contracting States may communicate with each other directly for the purpose of reaching an agreement in the sense of the preceding paragraphs.
5. If after the procedures of paragraphs 1 to 4 any dispute arising as to the interpretation or application of the Convention in a particular case cannot be resolved by the competent authorities of the Contracting States in a mutual agreement procedure, the case may, if both competent authorities agree be resolved through an arbitration board created by the competent authorities and supplemented by independent persons and according to internationally accepted arbitration procedures. These procedures shall by mutual agreement be established between the competent authorities of both Contracting States. The decision of the arbitration board shall be binding on both Contracting States and the taxpayer or taxpayers involved with respect to that case.
This paragraph will only apply after the competent authorities of both Contracting States have established the above-mentioned procedures.