Acta Oeconomica Pragensia 2016, 24(1):54-67 | DOI: 10.18267/j.aop.498

Interval and global progressivity of the income tax from wages in the Czech and Slovak Republics

Květa Kubátová
Vysoká škola ekonomická v Praze, Fakulta financí a účetnictví (kveta.kubatova@vse.cz).

The article deals with the measurement of progressivity of personal income tax in the Czech Republic and Slovakia imposed on wages. It works with both the methods known from the literature: the local method (interval) and global progressivity. The data source is the wage statistics of the Statistical Offices and taxes are calculated fictitiously on the basis of law with adoption of assumptions.
Results for interval progressivity in both countries show that while progressivity of the lowest income taxpayers is higher, it decreases with increasing gross income. Personal income tax in the Czech and Slovak Republics is observed as progressive in the entire range, even though the statutory tax rate is linear.
The Lorenz curve shows that the distributions of gross wages in the Czech Republic and Slovakia are of a similar nature. The values of the coefficient of interval progressivity and the coefficient according to Musgrave and Thin (CR has a coefficient of 1.024 and SR of 1.037) show that personal income tax is more progressive in Slovakia. Although Slovak personal income tax imposed on wages is more progressive, post-tax incomes of employees are more equitably distributed in the Czech Republic.

Keywords: Wage tax, tax progressivity, Lorenz curve, Gini coefficient, Czech Republic, Slovakia
JEL classification: H24

Published: February 1, 2016  Show citation

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Kubátová, K. (2016). Interval and global progressivity of the income tax from wages in the Czech and Slovak Republics. Acta Oeconomica Pragensia, 24(1), 54-67. doi: 10.18267/j.aop.498
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