Abstract
Employment related income paid by a third party (non-employer) has its specific tax treatment. In the Czech Republic, a different approach applies for calculation of personal income tax and obligatory insurance contributions from this income. With the preparation of the Single Collection Point (unifying the collection of personal income tax and obligatory insurance contributions), the question arises whether it is possible to set up unified treatment of this income for all obligatory payments. We provide detailed analyses of this topic from the point of view of the Czech legislation and comparison with selected countries. Further we follow with the discussion of problematic issues in unified treatment for all obligatory payments from this income; such as discrimination and complicated administration. We conclude that even if the national legislation for all obligatory payments from this income would not diff er, there will still be different treatment due to specific international regulations.