Multilateral Convention on Mutual Administrative Assistance in Tax Matters

Multilateral Convention on Mutual Administrative Assistance in Tax Matters
L.tak · CC BY-SA 3.0 · source
Name	Multilateral Convention on Mutual Administrative Assistance in Tax Matters
Type	Treaty
Signed	25 January 1988
Parties	Multiple jurisdictions
Depositor	Council of Europe and Organisation for Economic Co-operation and Development

Multilateral Convention on Mutual Administrative Assistance in Tax Matters is a multilateral treaty facilitating cooperation in tax matters among jurisdictions to combat tax evasion and promote tax transparency. Negotiated under the auspices of the Council of Europe and the Organisation for Economic Co-operation and Development, the instrument complements instruments such as the OECD Model Tax Convention and the Common Reporting Standard. It has been used alongside mechanisms like the Foreign Account Tax Compliance Act, the United States–United Kingdom Joint Liaison arrangements, and bilateral tax information exchange agreements such as the Double Taxation Convention between the United Kingdom and the United States of America.

Background and Purpose

The convention was opened for signature in Strasbourg and arose from initiatives involving the Council of Europe Summit and the OECD Council to strengthen measures following developments including the Bank Secrecy Act debates, the Panama Papers revelations, and earlier efforts like the Tax Information Exchange Agreement frameworks. Its purpose aligns with recommendations from the Financial Action Task Force and the G20 calls for enhanced transparency after crises involving Lehman Brothers and global financial instability. Historic antecedents include cooperation under the Convention on Mutual Administrative Assistance in Customs Matters and doctrines advanced in cases such as Powell v. McCormack and policy instruments developed by the European Commission and International Monetary Fund.

Scope and Key Provisions

The convention covers forms of assistance including exchange of information on request, automatic exchange of information, spontaneous exchange, simultaneous tax examinations, and service of documents, reflecting concepts from the OECD Model Tax Convention on Income and on Capital, the Convention on Mutual Legal Assistance in Criminal Matters (1988), and rules analogous to the United Nations Convention against Corruption. Key provisions permit tax authorities to obtain bank account details, ownership information, and results of audits from counterpart authorities—tools previously invoked in investigations involving entities such as HSBC, Mossack Fonseca, Credit Suisse, and Deutsche Bank. The text contains safeguards for confidentiality and non-discrimination influenced by principles in the European Convention on Human Rights and jurisprudence from the European Court of Human Rights.

Signatories and Participation

The convention has been adopted by a broad range of jurisdictions including members of the European Union, the United States of America (through certain arrangements), and numerous jurisdictions in Asia, Africa, Oceania, and Latin America. Parties include states such as France, Germany, Italy, Spain, United Kingdom, Canada, Japan, Australia, Mexico, Brazil, South Africa, Netherlands, Switzerland, and Norway. Non-state participants coordinating with the convention include the European Free Trade Association and regional bodies like the African Union and the Caribbean Community. Accession processes have involved legal reforms paralleling measures adopted in jurisdictions including Ireland, Luxembourg, Singapore, Hong Kong, Cayman Islands, and Bermuda.

Implementation and Legal Effects

Implementation requires domestic legislation or administrative arrangements similar to instruments enacted following decisions by legislative bodies such as the United States Congress, Parliament of the United Kingdom, Bundestag, and national assemblies like the Assemblée nationale (France). Courts interpreting the convention have drawn on precedents from the International Court of Justice, European Court of Justice, and national apex courts including the Supreme Court of the United States, the Supreme Court of Canada, and the High Court of Australia when reconciling treaty obligations with constitutional provisions. Practical legal effects include the ability of tax administrations to issue and enforce information requests under mutual legal assistance frameworks, affecting cases involving multinational corporations like Apple Inc., Amazon, Google LLC, Facebook, Inc., and Starbucks Corporation. Implementation has been coordinated with standards from the Global Forum on Transparency and Exchange of Information for Tax Purposes.

Impact and Use in International Tax Cooperation

The convention has been instrumental in facilitating investigations that followed leaks and enforcement actions connected to the LuxLeaks, Swiss Leaks, Paradise Papers, and the Bahamas Leaks, enabling cooperation among authorities from United States Department of the Treasury, Her Majesty's Revenue and Customs, Direction générale des Finances publiques, and the Federal Tax Service (Russia). It complements policy initiatives such as the Base Erosion and Profit Shifting Project, the Inclusive Framework on BEPS, and the EU Savings Directive, and supports multilateral information flows used in tax disputes adjudicated by forums like the International Centre for Settlement of Investment Disputes and arbitration panels under the United Nations Commission on International Trade Law. The convention has also influenced bilateral diplomacy involving actors like the G7 and G20 Finance Ministers in setting norms for transparency and enforcement exemplified by actions against offshore finance centers including Isle of Man, Jersey, Guernsey, and British Virgin Islands.

Category:Tax treaties