This study uses aspects of time series methodology to model and forecast major taxes such as Personal Income Tax (PIT), Corporate Income Tax (CIT), Value Added Tax (VAT) and Total Tax Revenue(TTAXR) in the South African Revenue Service (SARS). The monthly data used for modeling tax revenues of the major taxes was drawn from January 1995 to March 2010 (in sample data) for PIT, VAT and TTAXR. Due to higher volatility and emerging negative values, the CIT monthly data was converted to quarterly data from the rst quarter of 1995 to the rst quarter of 2010. The competing ARIMA/SARIMA and Holt-Winters models were derived, and the resulting model of this study was used to forecast PIT, CIT, VAT and TTAXR for SARS fiscal years 2010/11, 2011/12 and 2012/13. The results show that both the SARIMA and Holt-Winters models perform well in modeling and forecasting PIT and VAT, however the Holt-Winters model outperformed the SARIMA model in modeling and forecasting the more volatile CIT and TTAXR. It is recommended that these methods are used in forecasting future payments, as they are precise about forecasting tax revenues, with minimal errors and fewer model revisions being necessary. / Statistics / M.Sc. (Statistics)

The main idea of this diploma thesis is to analyse benefits, which can be provided by employers to their employees with regard to the impact on the personal income tax base and corporate income tax base. The analysed employee benefits include tax and deduction benefits, whether they can be regarded as tax deductible expenses and whether they are included in the taxable income of an employee. The benefits provided in DELTA a. s. based in Kardašova Řečice were analysed. Their extent and impact on the tax base were examined in this company. The thesis also examines, whether it is appropriate to adjust the benefit system or not.

This thesis deals with the problems of corporate income tax and tax value added by a legal person, which was not founded for the purpose of business. In the first section of the theoretical part I first focused on the meaning of a non-profit organization. Then I describe the specifics of the corporate income tax, which apply to non-profit organizations. In the third part of the literature review I describe the value added tax. First I define the difference between a taxable and a person identified to the tax, then I explain what items are object of the tax and what belongs to the tax base. In the practical part I observe the impact of income tax and the impact of VAT on specific non-profit entity which operates the secondary economic activity and tax payer of VAT.

O presente trabalho parte da análise das normas que regem a tributação da renda no mercado imobiliário com a finalidade de possibilitar a identificação de um sistema jurídico dotado de princípios e valores próprios, que possibilite o estudo de suas normas de maneira destacada em relação às demais disposições que versam sobre a imposição da renda. Não se tem por pretensão a busca de uma autonomia das mencionadas normas; pelo contrário, o estudo parte da premissa de um único sistema jurídico, mas que pode ser estudado sob diferentes pontos de vista: um sistema que comporta subsistemas normativos, com valores e princípios próprios. Objetiva-se, assim, a identificação e posterior aproximação daquelas disposições que possuem fundamentos e princípios comuns, o que possibilitará a compreensão da extensão das previsões normativas a serem analisadas, bem como as opções efetuadas pelo legislador na produção legislativa. Antes de se efetuar o estudo das normas que versam sobre a tributação da renda imobiliária serão discutidos e apresentados os conceitos gerais necessários às análises que se seguirão. A limitação do legislador na produção legislativa é aspecto central no presente estudo. Entende-se que o sistema jurídico justo demanda uma coerência alcançada somente quando verificada a adequação valorativa das normas que o compõem e apresente unidade, por meio da observância de princípios e valores comuns, por essas mesmas normas. As normas que prevêem as imposições fiscais incidentes sobre renda no mercado imobiliário se prestarão de pano de fundo para a identificação de princípios que regem a tributação do imposto de renda nas diversas situações apresentadas. Serão, assim, objeto de análise a tributação do imposto de renda das pessoas jurídicas, tributadas pelo lucro real e pelo lucro presumido; a tributação especial das pessoas jurídicas sujeitas ao patrimônio de afetação; os rendimentos auferidos pelas pessoas físicas decorrente das atividades ligadas ao mercado imobiliário, tais como o ganho de capital na venda de imóveis e a tributação dos fundos de investimento imobiliários. Ao final da análise da legislação que versa sobre a tributação do imposto de renda nas situações acima mencionadas serão apresentados os princípios e valores escolhidos pelo legislador para a imposição da renda imobiliária. / The present arises from the analysis of principles which rule the taxation on the real estate market aiming the possibility of identifying a legal system endowed with principles and self-values and also providing an outstanding study of its rules with relation to the other provisions which deal with the income taxation. There is no intention of the search of independence from the aforementioned provisions, on the contrary, the study arises from the assumption of a unique legal system, which otherwise may be studied under different points of view, a system which involves normative sub-systems with their own values and principles. It aims, therefore, the identification and later approach to those provisions which own principles and grounds in common, providing that way, the understanding of the extension of the normative foresight to be analyzed, as well as, the legislator\'s altematives when making laws. Before the study of the principles which deal with the real estate income taxation, the general concepts needed to the analysis shall be presented and discussed. The legislator limitation to the law making shall be the central aspect of the present study. It is understood that a fair legal system demands coherence, which is just achieved when the appropriate principle values which integrate it are consolidated by the observance of the common principles and values of such principles. The rules, which provide the tax enforcement collected on the real estate income, shall be the grounds for the identification of the principles which rule the taxation on the income tax of the different situations herein presented. The corporation income tax, collected on presumed and gross profits, special corporation taxation liable to the \"patrimônio de afetação\", the earnings obtained by the individual persons regarding real estate businesses such as capital gain in property sales and the taxation on real estate funds of investments will, therefore, be the object of the analysis. After the analysis of the legislation which deals with the taxation on the income tax of the aforementioned situations, the principles and values enforced on real state earnings chosen by the legislator shall be presented.

Atualmente, verifica-se um momento de grande reflexão dos aplicadores do Direito Tributário, em decorrência do impacto trazido pelos novos métodos e critérios contábeis aplicados à apuração do lucro societário das empresas no Brasil. A aplicação dos princípios contábeis geralmente aceitos passou a estabelecer novos paradigmas para o reconhecimento e mensuração do lucro, influenciando a forma de interpretar a legislação tributária. Esse contexto ganha grande relevância no que tange à apuração e tributação da renda no setor imobiliário. Isto porque esse setor da economia é cuidadosamente regulamentado, do ponto de vista contábil, tanto pela legislação societária quanto pela fiscal. Com efeito, o presente estudo analisa a delimitação da competência constitucional para tributação da renda pela União, sobretudo os limites oferecidos pelos princípios constitucionais tributários. Também se analisam as definições de renda pelo CTN e os critérios de definição do momento de realização. Ocorre que a definição do fato gerador do imposto de renda muitas vezes se vale de conceitos previstos em outras áreas do Direito, especialmente no Direito Privado. Dessa forma, são analisados os conceitos estabelecidos pelo Direito Contábil Societário, pois são fundamentais para a quantificação da matéria tributável. Após o estabelecimento da base teórica para a tributação da renda, passa-se à análise dos principais aspectos jurídicos das operações imobiliárias (negócios que envolvem a exploração econômica, direta ou indireta, da propriedade imobiliária). Essa primeira análise é necessária para se estabelecerem os parâmetros adequados para o reconhecimento e a mensuração da renda, intrinsecamente relacionada à transferência de riscos e benefícios. Um segundo passo importante, para a apuração da renda do setor imobiliário, corresponde à análise dos principais métodos e critérios contábeis estabelecidos pela legislação societária, pois esse é o parâmetro inicial para a apuração do montante a ser tributado. Por fim, analisam-se a coerência e a adequação das regras de tributação da renda no setor imobiliário, para as pessoas físicas e as pessoas jurídicas. Também serão abordados os regimes específicos de tributação previstos na legislação brasileira. / In recent years, tax law practitioners have been forced to rethink due to the impact of new accounting methods and criteria applied to the calculation of corporate profits in Brazil. The application of generally accepted accounting principles has established new parameters for the recognition and measurement of profits, thereby influencing the interpretation of tax law. This ontext has acquired great relevance regarding the calculation and taxation of income in the real estate sector. This is due to the fact that this economic sector is carefully regulated from an accounting standpoint, as much by corporate law as by tax law. Indeed, this work analyzes the limits of the constitutional authority for Federal taxation of income, especially as regards the bounds set out by constitutional principles of taxation. It also analyses the Brazilian National Tax Code (CTN) definition of income, as well as the definition of the moment when income is realized. It happens that the definition of the tax-triggering event for income tax often relies on concepts derived from other areas of law, especially privet law. Therefore, the concepts established by corporate accounting law are analyzed here, as they are fundamental concepts for the quantification of the tax bases. After establishing the theoretical basis for income taxation, the main legal aspects of real estate transactions are analyzed (those involving direct or indirect real estate economic exploration). This first analysis is necessary in order to establish the appropriate parameters for the recognition and measurement of income, intrinsically related to the transfer of risks and benefits. A second important step for the calculation of income in the real estate sector corresponds to the analysis of the main accounting methods and criteria established by corporate law, as this is the initial parameter for the calculation of the tax basis. Finally, this work analyzes the coherence and proportion of the income taxation rules in the real estate sector, for individuals and corporations. The special tax regimes established by Brazilian law will also be addressed.

No contexto do sistema tributário nacional brasileiro, uma apuração correta da renda tributável demanda o respeito a princípios abrigados pela Constituição Federal expressa ou implicitamente e, dentre estes, vale citar o princípio da realização da renda que, numa descrição simplificada, auxilia na detecção da capacidade econômica apta a sofrer tributação, uma vez que delineia diretrizes mais concretas para a identificação do momento adequado para que tal tributação se implemente. Este estudo enfoca o momento temporal em que se consideram ocorridos os fatos econômicos individuais que se ajuntam para compor a apuração da renda tributável. Não se trata, portanto, de uma abordagem direta acerca do aspecto temporal próprio da regra-matriz de incidência do imposto de renda, aquele que se identifica normalmente com o término do período de um ano. O tema é abordado com enfoque na tributação da renda, apresentando parâmetros para a conceituação do referido princípio e buscando delinear suas funções, bem como descrever seu âmbito de aplicação no Direito Tributário brasileiro, especialmente no que concerne à apuração do imposto de renda (sobretudo o de pessoas jurídicas). O princípio da realização é examinado sob três diferentes perspectivas. Primeiro, faz-se uma análise dos conceitos de renda (e noções correlatas de realização) fornecidos pelas ciências financeiras e econômicas. Segundo, há uma análise sob a perspectiva histórica que apresenta a evolução deste princípio na Alemanha, nos E.U.A., no Reino Unido e também no Brasil. E, por fim, sob a perspectiva estritamente jurídica, enfocando-se o sistema normativo atualmente vigente no Brasil, discutem-se a posição sistêmica do princípio da realização e as limitações impostas pela Constituição Federal de 1988 e pelo Código Tributário Nacional. Ainda nesta última perspectiva, avaliam-se as funções desempenhadas pelo princípio da realização como integrante dos princípios de contabilidade geralmente aceitos e as relações entre Direito Contábil e Direito Tributário. O princípio da realização é examinado em seus diferentes elementos (cumprimento da obrigação, mudança da posição patrimonial, troca no mercado, mensurabilidade, liquidez e certeza). Por fim, propõe-se uma estrutura para classificação dos diferentes critérios que informam o princípio da realização à luz da legislação brasileira. / In the context of the Brazilian tax system, a correct calculation of taxable income demands respect for the principles sheltered, expressly or implicitly, by the Federal Constitution and, among these, it is worth mentioning the realization principle. In a simplified description, said principle helps in the detection of the economic capacity that is able to suffer taxation, since it outlines more specific guidelines for identifying the right time where taxation may be implemented. This study focuses on the timing of the economic facts that are gathered up to comprise the basis for calculation of the taxable income. It is not, therefore, a direct approach on the temporal aspect of the basic rule of incidence of income tax (aspect which is usually identified with the end of the taxable period of one year). The issue is discussed with focus on taxation of income, showing parameters for the conceptualization of realization principle and seeking to outline its functions, as well as to describe its scope within the Brazilian Tax Law, especially on what concerns the calculation of the income tax (especially the corporate income tax). The realization principle is examined from three different perspectives. First, the study presents an analysis of the concepts of income (and related notions of realization) provided by the financial and economic sciences. Second, there is an analysis on the historical perspective that presents the evolution of this principle in Germany, the USA, the UK and also in Brazil. Finally, under a strictly legal perspective, focusing on the regulatory system currently in force in Brazil, it discusses the systemic position of the realization principle and the limitations imposed by the Federal Constitution of 1988 and the National Tax Code. With respect to the latter perspective, the study examines the functions performed by the realization principle as part of the generally accepted accounting principles and the relations between Accounting and Tax Law. The realization principle is examined in its different elements (achievement of the obligation, change in the property position, market exchange, measurability, liquidity and certainty). Finally, it proposes a structure for the classification of the different criteria that inform the realization principle in accordance with the Brazilian legislation in force.

The thesis is focused on an accounting and a tax field of the selected countries, the Czech Republic and Finland. The aim of this thesis is to analyse the accounting and tax system of the chosen countries and its reciprocal comparison. The present form of the financial accounting in both countries was influenced by their economic and political development and by other elements through many years. These factors and their impact on the accounting field are described and reviewed in the first part of the thesis. The second part is focused on the comparison of the tax field of both states which is related with an accounting. Among others, the characteristics of the tax system influence the behaviour of people (persons, entities) in connection with their international (and domestic) business activities. The most suitable indicator chosen for comparison of the tax burden between the Czech Republic and Finland is the consolidated tax quota. Due to the interaction to the accounting, there was an emphasis on the differences in the structure of corporate income tax in connection with the comparison of the tax systems.

The aim of this thesis is to evaluate the current legislation concerning the entertainment costs which are treated as tax non-deductible expenses in the Czech Republic. Further, this thesis compares these costs with promotion and sponsorship costs which are frequently interchanged in practice. After evaluation of the existing legislation in this area, I focus on the question whether these expenses should be treated as non-deductible expenses from the tax point of view while I base my opinion on the current state of Czech legislation, literature, case law and law of Germany and the United Kingdom.

The diploma thesis is focused on a limited company from legal, tax and accounting perspectives. The thesis contains comparison of to date legislation after the recodification of business law with its consequences and Commercial Code. This comparison aims mainly on the process of foundation of a company, company's authorities, reserve fund and increase and decrease of share capital. The following chapter contains impacts of mentioned recodification on accounting standards. The thesis is further concerned about the corporate income tax. Last chapters are about executive directors' rewards including their taxation and about distribution of profit. These chapters describe an approach of a current legislation as well as the obsolete Commercial Code.

This diploma thesis deals with the analysis of optimization of corporate income tax, specifically limited liability company, using the available funds according to the valid legal regulation. The thesis is focused mainly on legal tax optimization, but for interest is mentioned also illegal optimization. The aim of my diploma thesis is to optimize the tax liability of the limited liability company on model examples and recommend to the partners of these corporations how to achieve the most effective tax obligations.