The United States and Luxembourg have shared a Friendship, Establishment, and Navigation Treaty since 1963, which assures national treatment and other investor protections. In 2019, the U.S. Senate ratified the Convention between the United States and the Grand Duchy for the avoidance of double taxation and the prevention of fiscal evasion with respect to taxes on income and capital. Luxembourg and the United States also have an aviation treaty.

In addition to its open trade with other member states of the European Union, and free-trade agreements between the EU and other countries, Luxembourg also signed bilateral agreements with the following countries:

Albania, Algeria, Argentina, Armenia, Azerbaijan, Bahrain, Bangladesh, Barbados, Belarus, Benin, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Bulgaria, Burkina Faso, Burundi, Cameroon, Chile, China, Colombia, Comoros, Congo (Democratic Republic of the), Costa Rica, Cote d’Ivoire, Croatia, Cuba, Cyprus, Czech Republic, Egypt, El Salvador, Estonia, Ethiopia, Gabon, Georgia, Guatemala, Hong Kong, Hungary, India, Iran, Kazakhstan, Korea (Republic of), Kuwait, Kyrgyzstan, Latvia, Lebanon, Liberia, Libya, Lithuania, Macedonia, Madagascar, Malaysia, Malta, Mauritania, Mauritius, Mexico, Moldova, Mongolia, Montenegro, Morocco, Mozambique, Nicaragua, Oman, Pakistan, Panama, Paraguay, Peru, Philippines, Poland, Qatar, Romania, Russia, Rwanda, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, South Africa, Sri Lanka, Sudan, Tajikistan, Thailand, Togo, Tunisia, Turkey, Turkmenistan, Uganda, Ukraine, United Arab Emirates, Uruguay, Uzbekistan, Venezuela, Vietnam, Yemen, and Zambia.

Links to the treaty texts can be found at http://investmentpolicyhub.unctad.org/IIA/CountryBits/122 

Luxembourg is a member of the Multilateral Investment Guarantee Agency (MIGA).Luxembourg has a bilateral taxation agreement with the United States, which was amended to upgrade to OECD information exchange standards on bank accounts in 2009. This update to the Treaty was ratified in 2019 by both countries and came into effect in September 2019. In 2014, the bilateral agreement on FATCA allowed Luxembourg to comply with the U.S. reporting requirements to the IRS by financial institutions with U.S. citizen clients or “U.S. Person” clients. The law came into effect in 2015.

There are no other taxation issues of concern to U.S. investors.