The Convention on Mutual Assistance in Tax Matters («Convention») was jointly drawn up by the OECD and the Council of Europe in 1988 and amended by the Protocol in 2010. The Convention is the most comprehensive multilateral instrument available for all forms of tax cooperation to combat tax evasion and evasion. Learn about the state of the international situation with an interactive map that contains key indicators and the results of the OECD`s work on international tax issues with more than 150 countries and jurisdictions: according to the OECD communication, MAAC is an international treaty for multilateral cooperation in tax matters. In July 2020, 137 countries will participate. The Convention on Mutual Assistance in Tax Matters (Convention) is an independent multilateral agreement that aims to promote international cooperation in order to better functioning national tax legislation while respecting the fundamental rights of taxpayers. This treaty allows the contracting parties, Council of Europe member states and OECD Member States to develop, on a common basis and in respect of the fundamental rights of taxpayers, comprehensive administrative cooperation covering all compulsory taxes, with the exception of customs duties. The types of assistance are multiple and include the exchange of information between the parties, simultaneous tax controls and participation in tax controls in other countries, the collection of taxes due in other contracting parties and the notification of documents issued by other contracting parties. Since 2009, the G20 has repeatedly called on countries to sign the convention, including at the 2018 G20 summit in Buenos Aires, where the communiqué said: «All countries should sign and ratify the multilateral convention on mutual tax assistance.» The Convention on Mutual Tax Assistance is an agreement designed to facilitate the conclusion of bilateral agreements for the exchange of tax information between States Parties. The convention, drawn up by the OECD and the Council of Europe, was opened for the signature of members of both organisations on 25 January 1988 and came into force in 1995. The multilateral agreement is an agreement signed by more than 60 countries. The agreement means jersey can exchange tax information with most of the countries where the agreement is in effect. In addition, any State wishing to accede to the Convention may adapt the extension of its obligations because of a detailed system of reservations expressly provided for by the text; it may limit its participation in certain types of administrative assistance or assistance related to certain taxes.
The Convention provides for all possible forms of administrative cooperation between the parties on taxation and tax collection, including the fight against tax evasion and evasion.