Based on Article 25 OECD Model Convention
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 24, 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.
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.
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.
The competent authorities of the Contracting States may communicate with each other directly, including through a joint commission consisting of themselves or their representatives, for the purpose of reaching an agreement in the sense of the preceding paragraphs.
Where,
a) under paragraph 1, a person has presented a case to the competent authority of a Contracting State on the basis that the actions of one or both of the Contracting States have resulted for that person in taxation not in accordance with the provisions of this Convention, and
b) the competent authorities are unable to reach an agreement to resolve that case pursuant to paragraph 2 within two years from the presentation of the case to the competent authority of the other Contracting State,
any unresolved issues arising from the case shall be submitted to arbitration if the person so requests. These unresolved issues shall not, however, be submitted to arbitration if a decision on these issues has already been rendered by a court or administrative tribunal of either State. Unless a person directly affected by the case does not accept the mutual agreement that implements the arbitration decision, that decision shall be binding on both Contracting States and shall be implemented notwithstanding any time limits in the domestic laws of these States. The competent authorities of the Contracting States shall by mutual agreement settle the mode of application of this paragraph.
In some States, national law, policy or administrative considerations may not allow or justify the type of dispute resolution envisaged under this paragraph. In addition, some States may only wish to include this paragraph in treaties with certain States. For these reasons, the paragraph should only be included in the Convention where each State concludes that it would be appropriate to do so based on the factors described in paragraph 65 of the Commentary on the paragraph. As mentioned in paragraph 74 of that Commentary, however, other States may be able to agree to remove from the paragraph the condition that issues may not be submitted to arbitration if a decision on these issues has already been rendered by one of their courts or administrative tribunals.