The Federal Republic of Germany and the United Kingdom of Great Britain and Northern Ireland signed a new tax treaty on 30 March 2010.1 This treaty for the avoidance of double taxation and the prevention of fiscal evasion with respect to taxes on income and on capital DTT will replace the treaty of 1964. In the main, the DTT corresponds to the OECD Model Tax Convention 2008. There are important changes affecting the international workforce, which we examine briefly below.