Application of a double tax treaty restrictive provisions was not overcomplicated and a tax resident/tax non-resident was entitled to benefit from the restrictive effects of the double tax treaty directly, without having to apply for an approval from the Czech Tax Office first. For example, a foreign individual who was assigned by his foreign employer to its Czech subsidiary could relatively easily opt for a Czech tax non-resident status according to the relevant double tax treaty and by doing so avoid the obligation to declare his world-wide income in the Czech Republic.