As soon as the excitement around US President Donald Trump’s customs capers have been flown away on the financial markets, another government project stirs up new uncertainty. It is packaged in the new US budget law: It is intended to prove foreign investors with a special tax on capital income in the country. Affairs would be affected, such as dividends or license fees, for which one tax of up to 20 percent can be due, provided that investors came from countries whose tax laws the US government consider it unfair.