Komparace základu daně z příjmů fyzických osob a vyměřovacích základů sociálního pojistného u zaměstnanců

Diploma thesis aims to identify, describe and compare the level of current similarity between the base for calculating tax on personal income and base of assessment of social insurance in Great Britain, Ireland, Netherlands and the Czech Republic. Firstly, the thesis generally describes systems of integration of personal income tax and social insurance, the various stages of integration and the arguments for and against integration. Furthermore it describes systems of income tax and social insurance in the individual countries and rules for creating the tax base and the assessment base in these countries. In the last chapter there is comparison between the tax base and the assessment base in each country, and comparison of these two bases between all four countries. At the end of this chapter, there is a proposition of possible changes and suggestions for the Czech Republic, inspired by the tax systems of other described countries. The conclusion is, that there is a convergence of rules for calculating the income tax and social insurance assessment base and the largest differences between these two bases are in the Czech Republic.