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In Portugal, between 1989 and 2010, capital gains from corporate shares were exempted, while gains from other instruments, like limited liability companies (LLC) equity stakes, were taxed. Inevitably, this non-neutral tax treatment originated a notorious tax arbitrage, consisting in the transformation of the legal status of a LLC into a corporation, the subsequent share sale and tax exemption. In tax litigation, many arbitration rulings were delivered, with widely divergent decisions. The purpose of this paper, using a blend of the legal research method and case analysis, is to discuss three research questions. Should the general anti-abuse clause (GAAC) be applied to this tax planning operation? Why the divergence in arbitration rulings? Is this anomalous arbitration outcome because of the wording the GAAC and its complexity or, contrarily, does it emerge from the disconnection between the set of rules governing capital gains taxation and the legislative intent that is behind such rules?

The methodology used in this paper is based on a mix of the legal research method and case analysis. In the case of legal research, a hermeneutic approach – meaning that documents, texts and their interpretation can produce important fruits to the development of the field – is a tested and fruitful approach. Besides being a hermeneutic discipline, it is an argumentative one. By exposing arguments that confirm or deny particular solutions, legal research (e.g. in criminal, business or administrative law) can influence better legislative choices by political actors. Advantages of case analysis include lessons learned from observation. The author discusses if the application of the GAAC to an arrangement that originated a tax exemption can be validated by the usual interpretative lines that doctrine sustains should be observed when a GAAC is used to void legal schemes. The pros and cons of tax arbitration are also highlighted.

The conclusion of this paper is that the GAAC is not the crux of the problem. Instead, a contradictory or, at least, disconnected relation between the expressed intent of legislators and the wording of capital gains tax clauses is, in our view, the main reason for such divergent arbitration rulings on the same issue.

The author believes that the paper is a contribution to the literature, given the global use of anti-abuse clauses and the interpretative complexities they originate. Moreover, the analysis in this paper is carried out in a legal setting where a disconnection is detectable between the expressed legislative intent and the legal drafting of personal income tax rules related to the exemption of capital gains. Studying the complexity added by this feature of the Portuguese legislation serves as a reminder of the importance of careful and well-crafted wording to achieve consistent court outcomes.

The paper has value to governments, tax authorities and tax managers, given the ever-increasing use of anti-abuse clauses in many countries, and the potential use of arbitration in similar settings.

The purpose of this paper is the analysis of an anti‐abuse clause inserted in the Portuguese corporate income tax code (CITC) to deal with some forms of tax avoidance, and the degree of complexity that its practical application can induce for tax payers and tax authorities. The clause is related to “thin capitalization”, and aims at preventing that the financing arrangements between a parent company and its worldwide affiliates can be a source of tax minimization.

The economic and tax justification for such a clause is presented, and its evolution, in the wake of the European Court of Justice's rulings is discussed. Then, the paper analyses the wording of article 67 and concludes that it can be a source of many doubts for taxpayers, tax authorities and tax courts, when litigation follows from divergent views of firms and tax auditors. The reason for difficulties in the clause's application is the same that plagues many other areas of taxation: there is an established rule, followed by one, or several, exceptions. The paper exemplifies some hypothetical situations that can render the clause applications as quite complex and uncertain.

The degree of subjectivism of the exceptions established in article 67 can be a source of significant tax complexity. However, being true that numerical rules can be simpler to use, principles make the application of the law to specific situations fairer, by giving courts room for discretion in appreciating each case on its merits, and not being bonded by an explicit rule. The paper argues that a higher level of fairness is worth some degree of complexity.

When managers have to decide on financing plans, especially in multinational contexts, tax implications are at the forefront of relevant issues. Thin capitalization, when established in a way that postulates a rule, followed by exceptions, can render its actual impact in reported income quite ambiguous, given the judgments and technical complexities that can arise in the process.

The paper deals with practical complexities in applying the mentioned clause in the Portuguese CITC. It contributes to the literature by focusing on a micro interdisciplinary analysis – financial, accounting, legal and tax – of an anti‐avoidance mechanism inserted in many tax codes. As such, in every country that has a similar clause, it is at the interplay between law and management, given the potential impact of legal principles and rules in taxable income, corporate tax due, and rates of return.

The purpose of this paper is the analysis of some important clauses inserted in the Portuguese corporate income tax (CIT) code and how they can be a source of divergence between reported earnings and taxable income. Additionally, the paper also discusses if these clauses are a source of management flexibility in reporting earnings, even if it means paying higher taxes.

The approach taken in this paper is based on a branch of legal research methodology. The paper uses applied legal research, exploring two avenues. One is based on the recognition that it is usually not possible to arrive at the correct interpretation of the law only by pure deductive reasoning, because hard cases' outcomes tend to form a body of jurisprudence that affects the application of legal rules. Verbal interpretation and manipulation of law usually give rise to contradictory outcomes from apparently identical situations. The approach is also based on macro tax data, in order to present some empirical evidence of hypothesized management behavior.

The paper finds that ambiguity in CIT laws induces a type of management behaviour characterised by minimizing tax liabilities estimates. Portuguese corporate tax returns show an improbable low level of adjustments related to clauses where flexibility in the timing of cost deduction is an option.

The paper adds to the body of literature that analyses the relation between the level of ambiguity and uncertainty in tax laws and its impact on managers' decisions, particularly about reported income, and presents some supportive evidence of the hypothesized behaviour. It is useful for managers, tax authorities and tax courts, by discussing the relation between the nature of tax clauses and management behaviour.

This paper aims to discuss the tax-related illicit financial flows from a human rights perspective. It argues that curbing illicit financial flows, and specifically tax abuse, is essential not only for realizing human rights but also for achieving the sustainable development goals. It provides definitions of tax evasion and avoidance, as well as estimations of illicit financial flows. It studies the tax abuse implications for human rights and sustainable development, as well as the obligations in the field of human rights and tax abuse. It also critically assesses the recent international initiatives aim at curbing illicit financial flows. It concludes with a set of recommendations on how to curb illicit financial flows.

This paper combines economic, legal and policy perspectives to study the multidimensional, complex and global problem of illicit financial flows. It not only proposes an explanation of the volume, roots and economic, social and human rights implications of illicit financial flows but it also proposes reforms that states and other stakeholders need to implement in order to curb this phenomenon.

Combating tax abuse and illicit financial flows more broadly, is essential to make better progress in realizing international human rights obligations. The inclusion of a specific target to reduce illicit financial flows under the sustainable development goals makes clear that curbing such flows is also essential for creating an enabling environment for sustainable development. While we should applaud that reducing illicit financial flows is mentioned in one of the targets of the sustainable development goals, the target remains broad and vague. Specific measures to operationalize this target are needed to ensure that progress is achieved and that such progress can be tracked and measured. The author presents recommendations for discussion. To promote accountability, the recommendations are addressed to specific stakeholders.

This paper tries to contribute to improve our knowledge and understanding of illicit financial flows and tax abuse more specifically at global level and their implications for human rights, to make the need for change more compelling, as well as to stimulate the debate around reforms that need to be implemented to curb illicit financial flows.

The purpose of this paper is to discuss tax and accounting issues related to the evolution of the intellectual property box in Portugal and present a preliminary view of its impact. In 2014, Portugal adopted an Intellectual Property (IP) box, exempting from corporate taxation half of the gross revenue obtained from selling IP rights. In 2016, the country adopted a new IP regime, in line with BEPS’ recommendations, with stricter rules for exempting income. The “modified nexus approach”, recommended by the OECD, was the cornerstone of legal changes. The research questions addressed in this paper are as follows: was the Portuguese IP box, set up in 2014, internationally competitive in terms of the scope of qualifying assets and the tax rate when compared to other EU countries? Could its legal design induce potential corporate tax avoidance? Does the new IP box framework reduce avoidance opportunities and does it increase tax and accounting complexity for companies and tax auditors?

The methodology used in this paper is based on the legal research method combined with a case study analysis of the IP box in Portugal. The economic motivation for legal changes, the interaction between the tax authorities and the policy makers in the wake of BEPS’ recommendations, and the economic crisis that Portugal faced, influenced legislative options. A multidisciplinary approach is required to analyse the IP box modifications, and the methodology follows this line of enquiry.

The author concludes that the 2014 IP box was not competitive in terms of the scope of qualifying assets and the tax rate. However, it could be a potential tool for tax avoidance, mainly linked to transfer pricing strategies. Legal changes, introduced in 2016, by enacting stricter rules for granting tax benefits, fit a worldwide trend of restraining profit shifting opportunities linked to intangibles. The new framework clearly impacts tax and accounting complexity, for companies and tax auditors. Preliminary data, for 2014 and 2015, show a negligible impact of the IP box on corporate taxation.

The “modified nexus approach” is not a definitive panacea for fighting tax avoidance. Multinationals may move resources (e.g. highly specialized persons) to entities that are developing IP, curtailing the restriction associated with acquiring services from related parties. Tax authorities may fight these schemes, but face a challenging task. The grandfathering option and new accounting choices related to expense allocation are delicate issues. Not all countries adopted BEPS’ recommendations at the same time, which may impact international profit shifting activities and increase tax authorities’ costs to control them. The paper also provides preliminary and exploratory evidence that IP boxes, per se, do not suddenly raise the R&D activity of firms.

The analysis highlights legal, accounting and economic issues in dealing with changes in investment incentives and can or may be a useful remainder for countries in the process of setting up, or amending, IP boxes.

The purpose of this paper is, first, to discuss if the Portuguese corporate tax reform, implemented in 2014, moved the system towards international trends. Second is to analyse in what areas the similarities and disparities are more pronounced when assessing the Portuguese reform against the Common Consolidated Corporate Tax Base, the Mirrlees Review or other relevant international guidelines. Finally, it assesses how a European country under a bailout could significantly reform the corporate tax.

The methodology employed is based on a mix of the legal research method and case study analysis. The legal method will be applied under comparative income taxation, and the case study will draw on the Portuguese reform to broaden the discussion about critical issues like the participation exemption regime and its place in the taxation of international income flows. The paper will analyse core issues in international income taxation, the present state of corporate tax harmonization in the European Union, discuss the main issues that were dealt by the Portuguese tax reform and offer a critical assessment of tax policy choices that underpinned the reform.

During the past decades, Portugal was increasingly out of line with international trends in corporate taxation. The bailout asked for the Portuguese Government in 2011 placed a heavy burden in public finances, with an apparent lack of room to follow international trends of corporate tax reform. However, it can be concluded that, after convincing the troika that investment and growth were paramount to overcome the severe economic and social crisis that fell upon the country, the corporate tax was seen as an important policy tool to promote these goals. The reform was thus possible even in the context of a restrictive public finance situation, and followed most guidelines put forward in highly regarded international reports.

A broad corporate tax reform, including rate reduction, a participation exemption regime, a more flexible rule on cost acceptance, an extension of loss carry over period, to name a few, was possible in a very constrained public finance situation. By placing the emphasis on moving the system towards international trends and promoting measures to enhance investment and growth, international creditors could accept such a reform. Also, a consensus with the main opposition party was a very important factor in securing much needed political support.

The findings from what can be considered as an experiment in corporate tax reform in tough economic and social times can be useful to policymakers, tax authorities and international bodies dealing with tax reform processes. The impact on managerial decisions such as investment and financing is also relevant.

The purpose of this paper is to discuss the following research questions: Is the Portuguese corporate income tax (CIT) losing its internal consistency by extending the autonomous taxation of expenses (ATE)? Are receipts derived from autonomous taxes so relevant that what began as an exception is gradually becoming a permanent feature of the income tax? Given the constitutional principle that corporate taxation should be fundamentally based on income, is the taxation of expenses unconstitutional? Is Portugal an international outlier, in applying this type of taxation to corporate expenses?

The methodology used in the paper is a blend of legal research method and case study analysis. The interpretation of legal texts and the ratio legis discussion (hermeneutical side), the evaluation of advantages and disadvantages of autonomous taxes (argumentative approach) and the use of aggregate data to gauge an impression of autonomous taxes’ impact on global tax receipts (empirical side) will, jointly, be used to analyse the topic. Autonomous taxation is a case study on how a (albeit distortive) solution is being applied in an European Union (EU) country to significantly enhance corporate-related tax revenue.

The authors conclude that autonomous taxation is a relevant source of revenue and its elimination is not foreseeable, at least in the medium term. Moreover, the extension of the tax base is gradually transforming CIT in a kind of dual tax, by charging profits and some expenses. The Constitutional Court, stressing the equity principle, has not ruled autonomous taxation unconstitutional, invoking usefulness against tax evasion. Finally, with the exception of some Portuguese-speaking countries, no other comparable international experience is observed.

The autonomous taxes (ATE) and its progressive enlargement imply, on the one hand, that the CIT has been slowly, but inexorably, losing its sole purpose of taxing profits, and imposing a tax penalty on an increasing set of accounting expenses. On the other hand, the growing number of expenses subjected to taxation leads some authors to ponder if the Portuguese tax regime is losing attractiveness. By increasing ATE’s scope, the effective rate tends to move upwards, countering reductions in the statutory rate. Finally, tax law will increasingly influence managers’ daily decisions, given the set of expenses targeted by autonomous taxes.

Taking into account the aim of this study, the discussion of a Portuguese particular feature of corporate taxation can highlight useful policy points to a broader audience. Many Organization for Economic Cooperation and Development (OECD) countries face a dire situation in public finances. Therefore, given the pressure to increase tax receipts, the ATE can be a case study on how a (albeit distortive) solution is being applied in an EU country to significantly enhance corporate-related tax revenue.

The Equal Pay Act 1970 (which came into operation on 29 December 1975) provides for an “equality clause” to be written into all contracts of employment. S.1(2) (a) of the 1970 Act (which has been amended by the Sex Discrimination Act 1975) provides:

The Howard Shuttering Contractors case throws considerable light on the importance which the tribunals attach to warnings before dismissing an employee. In this case the tribunal took great pains to interpret the intention of the parties to the different site agreements, and it came to the conclusion that the agreed procedure was not followed. One other matter, which must be particularly noted by employers, is that where a final warning is required, this final warning must be “a warning”, and not the actual dismissal. So that where, for example, three warnings are to be given, the third must be a “warning”. It is after the employee has misconducted himself thereafter that the employer may dismiss.