Politická ekonomie
Politická ekonomie
Politická ekonomie
TEORETICKÝ ČASOPIS • ISSN 0032-3233 (Print) • ISSN 2336-8225 (Online)

Politická ekonomie Vol. 55 No. 5

Dodatečné zdanění nejistých osobních příjmů v důsledku daňové progrese

DOI: https://doi.org/10.18267/j.polek.616

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Jan Vlachý

This paper analyzes the tax penalty on volatile personal income under progressive tax rates. The phenomenon may have an effect on long-term entrepreneurial decisions as well as risky occupational choice. An options-based model is used to estimate the expected effective rate due from tax-payers at different income levels and volatilities under the current Czech legislation. A comparison is made to the system which has been in place until 2005, as well as to the Slovak flat-rate schedule. The model shows that volatile incomes incur a substantial penalty of up to 2 percentage points on the effective rate peaking just below the official income statistics mean. The effect is more pronounced than under the former parameters of the tax code. A severe impact on below-average earners due to the mandatory minimum tax-base regulation has been demonstrated. On the other hand, the Slovak flat tax with a single marginal rate bears virtually no sensitivity to income volatility, with the slight exception of very low incomes.

JEL klasifikace: D81, H23, H24, H30, J24