Luxembourg, up to 2 years of Tax Treaty

(Reported from Internal Revenue Service (IRS), US government Publication 901)

Tax treaty for Professors, Teachers, and Researchers

A resident of Luxembourg who is temporarily in the United States at the invitation of a U.S. university, college, school, or other recognized educational institution only to teach or engage in research, or both, at that educational institution is exempt from U.S. income tax on income for the teaching or research for not more than 2 years from the date of arrival in the United States.

If the individual’s visit to the United States is longer than 2 years, the exemption is lost for the entire visit unless the competent authorities of Luxembourg and the United States agree otherwise.

This exemption does not apply to pay for research carried on for the benefit of any person other than the educational institution that extended the invitation.