The subject of the bachelor thesis is compliance costs of taxation, which are incurred by taxpayers because of tax system existence. The main aim of the thesis is to quantify the compliance costs primarily from time perspective and subsequently in monetary units. The analysis was performed for the year 2016 for value added tax and for corporate income tax. Based on a questionnaire survey, compliance costs of individual respondents were identified. Only the so-called ordinary compliance costs were considered, without taking into account bookkeeping costs and external advisory costs. The ratio of compliance costs on the final average corporate income tax paid is 2.39 %. The share of VAT compliance costs on the final average tax paid is 1.38 %...