In the first theoretic part the tax system of Czech Republic is specified and then individual taxes are described in detail. As the basic target of this diploma work is presentation of taxes in company accounting, next part is based on accounting of taxes and its tax effects into base of income tax. Then the practical part presents tax system in particular company. For this reason small agricultural company called EPIGON A located in Českobudějovicko was chosen. All tax duties of company EPIGON A in 2008 were described and calculated in the diploma work. Next actual changes in tax and accounting legislation were analyzed with its impacts into accounting of particular company and also impacts into base of income tax. Legislation on taxes and accounting has many exceptions for agricultural companies. This diploma work pays attention to these specialties and exceptions as well.

Public finance is of much importance for the sustainability of a State. For that purpose,there are diverse tax mechanisms that are key to achieve that purpose, such as the case of Property Taxes. However, can we affirm that this tax achieves that goal in Peru? Is the rate properly fixed? Is there an adequate administration and recollection of taxes? In this investigation, THĒMIS studies the diverse challenges that come up in fiscal decentralization in this country, showing off a legal perspective as well. It also brings a dynamic study of Property Taxes, concluding that it has a very decisive impact on public finance, and for that reason, the rate must be progressively modified and increased. It will be fundamental that the recollection may be done with good governance that allows both the decentralization and maximization of the funds use, in order to benefit all sectors. / El financiamiento público es un factor de suma importancia para el sostenimiento de un Estado. Es por ese motivo que existen diversos tributos que son fundamentales para lograr tal cometido, como es el caso del Impuesto Predial. Sin embargo, ¿aquel impuesto cumple su finalidaden el Perú? ¿Su tasa es fijada adecuadamente? ¿Existe un buen sistema de recaudación? En esta investigación, THĒMIS analiza los retos que encuentra la descentralización fiscal en nuestro país, proveyendo además, un enfoque jurídico. Asimismo, se presenta un dinámico estudio del Impuesto Predial en el país, concluyendo que tal afecta definitivamente a las finanzas públicas y que, por ello, la tasa debe ser progresivamente modificada y alzada. Será fundamental que éste sea recaudado mediante una adecuada gestión pública que permita descentralizar los fondos y maximizar su uso para beneficiar a todos los sectores.

Traditionally, some countries have been using the Corporate Income Tax as a way of, starting from relatively high nominal tax rates, encourage certain economic activities through incentives or bonuses that allow considerably reduce actual business taxation. In contrast, other member states have chosen to directly lower the tax rate, regardless of other incentives, thus bringing the nominal taxation to effective.This research aims to analyze the discrepancies in the taxation of corporate income tax between different Eurozone countries for the period 2000-2013, noting the differences between the statutory (STR) and effective tax rates (ETR) of listed companies. In this way, this work locates the idea of the European Commission to adopt a common corporate tax in its current context, determining which countries exercise greater fiscal pressure on the results of their companies. / Tradicionalmente, algunos países han utilizado el impuesto sobre los beneficios empresariales como una vía para, partiendo de unos tipos relativamente elevados, fomentar determinadas actividades mediante incentivos o bonificaciones fiscales que permitirían reducir considerablemente esta carga fiscal empresarial. En cambio, otros Estados han optado por reducir directamente la tasa de impuestos, sin tener en cuenta los incentivos fiscales, acercando la tributación nominal a la efectiva.Esta investigación pretende analizar las divergencias existentes en la tributación por el impuesto sobre sociedades entre los distintos países de la eurozona para el período 2000-2013, observando las diferencias entre los tipos nominales y efectivos de las empresas cotizadas. De esta manera, se sitúa en el contexto actual la idea de la Comisión Europea debe adoptar un impuesto de sociedades común, y determinar qué países ejercen una mayor presión fiscal sobre los resultados de sus empresas. / Tradicionalmente, alguns países com uma elevada taxa nominal utilizam o imposto sobre a renda como uma via para fomentar as atividades econômicas através de incentivos ou bônus que permite reduzir consideravelmente a atual tributação das empresas. Em contrapartida, outros Estados-Membros optaram para diretamente baixar as taxas de impostos, independentemente de outros incentivos, transformando a taxa nominal em efetiva.Esta pesquisa tem como objetivo analisar as discrepâncias na tributação empresarial entre os diferentes países da zona do euro no período 2000-2013, observando as diferenças entre a taxa nominal e a taxa de imposto efetiva das empresas listadas. Desta forma, este trabalho projeta a noção de que a Comissão Europeia adopte um regime comum para o imposto sobre o rendimento, determinando quais são os países que exercem uma maior carga tributária sobre os resultados de suas empresas.

O objetivo desta tese foi avaliar os efeitos decorrentes do registro de instrumentos financeiros híbridos junto às linhas patrimoniais. Para tanto, foram utilizados modelos de relevância informacional, os quais avaliam a forma como os números contábeis são assimilados pelos preços e retornos acionários (OHLSON, 1995; ABOODY et al., 1999; LIMA, 2010; LOPES; WALKER, 2012). Adicionalmente, também foram observadas as inter-relações entre a emissão e a contabilização de tais contratos com o custo de capital próprio, alavancagem financeira e a carga tributária efetiva, respectivamente, considerados como determinantes para utilização dessa modalidade de captação de recursos (LEE; FIGLEWICZ, 1999). No tocante ao desenvolvimento metodológico desta pesquisa, foram compostos dois conjuntos amostrais, sendo: (i) grupo de interesse, formando por 39 empresas que emitiram os instrumentos híbridos aqui estudados, presentes em 10 jurisdições; e (ii) grupo de controle, no qual se encontram 107 organizações domiciliadas nos mesmos países e setores, bem como de composição patrimonial similar ao grupo previamente relatado. Foram coletadas observações para essas companhias de dezembro de 2005 a dezembro de 2015, em bases trimestrais, perfazendo um total de 3.386 observações. A leitura das notas explicativas do grupo de interesse indicou que essas empresas registraram os híbridos junto ao PL, considerando elementos interpretativos minimamente questionáveis à luz da essência econômica sobre a forma jurídica desses títulos. Isto é, sob uma análise conjugada dos instrumentos híbridos aqui avaliados com a IAS 32, é possível inferir que a modalidade de contratos analisada se aproxima mais da definição de passivo financeiro do que de instrumento patrimonial. Entretanto, no âmbito dos resultados quantitativos, verificou-se, em linhas gerais, que os modelos de relevância informacional indicam que o montante dos híbridos afeta os preços e retornos acionários dos emitentes não relacionados a projetos de infraestrutura, de maneira positiva e estaticamente significante. Tal contrariedade pode ser mais bem compreendida aplicando-se o conceito da profecia autorrealizável de Merton (1968), em que o registro contábil de um título como PL, ainda que de maneira equivocada, desencadeará nos agentes de mercado a percepção de que esse de fato possui tal condição, adotando comportamentos que fazem com que a concepção originalmente falsa se torne verdadeira. Do mesmo modo, a ausência de questionamentos por parte dos auditores externos e dos reguladores corroboraria o tratamento empregado pelas organizações, gerando os efeitos descritos nos investidores. Com relação aos fatores determinantes para emissão desses títulos, foi verificado que os emitentes possuem custo de capital próprio superior, são mais alavancados financeiramente e demonstraram cargas tributárias efetivas inferiores aos não emitentes. Dessa maneira, é possível concluir que embora novas modalidades de contratos para obtenções de valores, tais como os instrumentos híbridos, sejam importantes para o financiamento das atividades empresarias, é fundamental que a contabilidade represente de forma fidedigna a natureza econômica desses instrumentos, a fim de que não haja distorções na posição patrimonial das entidades e, por conseguinte, gere vieses nos usuários das demonstrações financeiras / The main purpose of this thesis was to evaluate the effects of hybrid financial instruments bookkeeping as equity. Therefore, were used value relevance econometrics models, which assess how the accounting figures are assimilated by the stock prices and stock returns (OHLSON, 1995; Aboody et al., 1999; LIMA, 2010; LOPES; Walker, 2012). Additionally, were observed the relationships between these contracts and cost of capital, financial leverage and effective tax rate, respectively, considered crucial to use of this fundraising tool (LEE; FIGLEWICZ, 1999). Regarding to the methodological development of this research was composed two samples, namely: (i) interest group, formed by 39 companies that issued hybrid instruments presents in 10 different jurisdictions; and (ii) control group, which have 107 organizations domiciled in the same countries and operating in the same sectors, as well as its equity composition is similar to the interest group. Observations were collected for these firms from December 2005 to December 2015, on a quarterly basis, forming a total database with 3.386 observations. The technical notes of the interest group analysis indicated that these firms recorded hybrids as equity instruments, considering interpretative elements at least questionable in light of the economic substance over the legal form of these bonds. Therefore, in a combined analysis of hybrid instruments evaluating IAS 32 together, it is possible to infer that these contracts is closer to the concept of financial liability than equity instrument definition. However, under the quantitative finds, it was verified that the amount of hybrid affects the prices and stock returns of issuers, not related to infrastructure projects, in a positive and statistically significant way. Such results opposition might be better understood applying the concept of self-fulfilling prophecy of Merton (1968), in which the accounting records of a contract such as equity, albeit wrongly, will trigger on the market players the insight that this truly or it has such condition, adopting behaviors that make the original false conception becomes true. Similarly, the absence of queries by regulators and auditors corroborate the treatment employed by the firms, supporting the effects described on the investors. Concerning to the determinant factors for the issuance of these bonds, was found that the issuers have higher cost of capital, are more leveraged and revealed lower effective taxes rates than non-issuers. Hence, can be concluded that while new forms of contracts for obtaining resources, such as hybrids, are important for the financing of entrepreneurial activities, it is essential that accounting represent faithfully the economic nature of these instruments in order to not create distortions in the financial position and, therefore, generate biases in users of financial statements.

The content of this thesis is a detailed analysis of individual types of tax allowances provided to individuals - residents, focusing on selected states of the European Union. Tax allowances are considered deductions, allowances, credits and tax band with a zero tax rate. The author explains the differences between these types of tax allowances, analyzes the types of tax allowances granted in selected states of the European Union and examines the tax yield of the basic types of tax allowances of the taxpayer with an average gross wage.

The thesis deals with a conception of the Laffer curve. It shows up economic chain of events of the Laffer curve origin. The conception is upgraqded by administrative costs of tax collection, thesis put into the connection tax rate and tax efficiency through this way. Further, there is checked by statistical software relation between tax yield and tax rate. There is also made quantification of administrative costs of the tax collection.

This master's thesis presents a comparison of the tax burden in the Czech Republic and in Germany. The first two chapters cover the major types of taxes and differences in the tax systems of both countries. In the third part of the thesis is about key features of the Czech and the German Income Tax Act and it is primarily focused on taxation of employment. The practical part is compared to taxation of certain types of taxpayers at different levels of the average wage.

The thesis entitled Development of the differences between the implicit and the nominal corporate tax rate in the Czech Republic deals with the amount of the implicit and nominal corporate tax rate, particularly the issue of the difference between the amounts of these rates. Examination of the rates follows the description of the characteristics of corporate income tax, the analysis of the advantages and disadvantages of this tax and its share of the total taxation . Furthermore, the thesis analyzed the method of calculating the effective tax rates and implicit tax rates on capital and corporate income. For comparison the thesis includes the analysis of the evolution of nominal and implicit tax rates on corporate income in the European Union and in the Czech Republic . For the final analysis, it is essential that the thesis presented as individual changes in the law on income tax since its introduction into the Czech legal system since 1993 to the present. Only with knowledge of legislative changes, it is possible to determine the relationship between nominal and implicit tax rate on corporate income, which deals with the thesis in the final analysis.

This work is focused on effective tax rates of the personal income tax from a microeconomic perspective. The work analyses francophone countries, namely Belgium, France, Canada, Luxembourg, Greece, Switzerland and also the Czech Republic. The first chapter defines elements of the personal income tax, social insurance contributions and the effective tax rate along with examples of its calculation. The second chapter describes the personal income tax and social insurance contributions in chosen countries and calculates the effective tax rate using collected information. The effective tax rate is calculated for six sample taxpayers with different levels of average wage. The final chapter compares, according to sample taxpayers, effective tax rates including only income tax or social security contributions payed by employees, and at the end the effective tax rate as a whole.

The diploma thesis focused on international tax planning and tax optimization. The diploma thesis specifies what is an international tax planning and underlines its importance in these days. On theoretical knowlege the diploma thesis summarizes key factors that should entrepreneurs in international tax planning and optimization to take into account. End of the thesis presents proposal the progress of the process of international tax planning and also on the particular case.