Against the backdrop of international tax competition, corporate and investment income taxation has been gradually diverging from its original principles during the past years. In the last comprehensive reform in 2008/2009, individual elements of a dual income tax were implemented. Dominik Rumpf...

Recently, there have been various proposals in Germany to exempt interest income of individuals from progressive income taxation, and to levy a flat source tax, instead. The isolated introduction of a flat tax on interest income would have a significant effect on all investment and financing...