The personal income tax, which has a significant influence on total tax revenue, has been part of the Czech tax system since 1993. The main objective of this paper is to evaluate the dependence of tax revenue on the personal income tax based upon a dependent activity related to tax relief for the taxpayer, namely the tax credit for children in the Czech Republic in the period of 2008-2017. Another objective is to analyze the dependence on the valorization of the tax reliefs and tax credit claims. The database of the Czech Statistical Office and the Ministry of Finance of the Czech Republic is used as a source of input data for the analysis. To achieve the objectives of the paper, methods of description, comparison, analysis, synthesis, as well as regression and correlation analyses are used. The results of the analysis show that the tax credit for children has a positive effect on tax revenue. The amount of the tax advantage for children has almost doubled in the last 11 years. On the other hand, general tax relief for all taxpayers has not been valorized since 2008. The existence of a certain non-taxable minimum is typical for personal income tax systems around the world tax, and the valorization in the Czech Republic did not show a negative impact on the tax system's competitiveness. Increasing the amount of deductions might be non-effective from the perspective of the state, but the results of this study show that the effect on personal income tax revenue in the Czech Republic is the opposite. The projected value and uniqueness of the article is not only in the analysis of dependencies of selected tax allowances upon each other, but also in the context of tax revenue and selected macroeconomics indicators.

Financial statements bring information about financial position, performance and changes in financial performance. These statements could be prepared in accordance with national accounting standards or in accordance with International Financial Reporting Standards. The scientific problem is to assess whether it is more beneficial to prepare financial statements according to national, transnational or both national and transnational accounting standards. Results show that it is more convenient to prepare financial statements only according to the legislation of national accounting standards. The advantage of this option is lower costs. However, the second best option, based on preparing financial statements according to International Financial Reporting standards, leads to higher quality, credibility and comparison of these statements. Options based on the gradual convergence of transnational and national accounting standards also do not represent an ideal situation. The utility of options is influenced by many criteria. The most important criterion according to the questionnaire survey is costs. The questionnaire survey was carried out in the year 2018 among 28 industrial companies in the selected region of the Czech Republic. The methods of description, analysis, synthesis, comparison and selected methods of multi-criteria decision-making are used in the article.

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Is Personal Income Tax on Dependent Activity in the Czech Republic Progressive? The paper deals with an analysis of the tax progressivity of personal income tax on dependent activity in the Czech Republic in the period 1993-2018. The personal income tax had a progressive rate in the past. Since 2008, the tax rate has been linear, complemented since 2013 by a solidarity tax increase. The analysis results show that in spite of the linear tax rate, the personal income tax in the Czech Republic is not linear. In most cases, the income tax has a progressive character due to the non-taxable part or tax reliefs. For taxpayers with above-average income, the situation is opposite and their tax liability was regressive in the period 2008-2012.