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This paper provides a new, empirically driven application of the dynamic Mirrleesian framework by studying a feasible and potentially powerful tax reform: age-dependent labour income taxation. I show analytically how age dependence improves policy on both the intratemporal and intertemporal margins. I use detailed numerical simulations, calibrated with data from the U.S. Panel Study of Income Dynamics, to generate robust policy implications: age dependence (1) lowers marginal taxes on average and especially on high-income young workers and (2) lowers average taxes on all young workers relative to older workers when private saving and borrowing are restricted. Finally, I calculate and characterize the welfare gains from age dependence. Despite its simplicity, age dependence generates a welfare gain equal to between 0-6% and 1-5% of aggregate annual consumption, and it captures more than 60% of the gain from reform to the dynamic optimal policy. The gains are due to substantial increases in both efficiency and equity. When age dependence is restricted to be Pareto improving, the welfare gain is nearly as large.

BackgroundSmall businesses play a significant role in the alleviation of unemployment, poverty and inequality. In recognition of the key role played by small businesses, the South African government has implemented small- and medium-sized enterprises (SMEs) tax preferences to support this sector.AimThis study evaluated contemporary tax preferences for SMEs in South Africa.SettingFor this study, small business owners and tax practitioners in the Gauteng province of South Africa were interviewed.MethodThe study employed a qualitative research approach. Semi-structured interviews were utilised to solicit information from 25 small business owners and 22 tax practitioners.ResultsSmall business owners often lack awareness of the turnover tax regime. Tax practitioners tend to prefer the small business corporation (SBC) tax regime over the turnover tax regime because of misconceptions about the latter, its high administrative burden and the fact that the tax base for calculating tax payable is taxable turnover rather than taxable income. Many clients utilising the SBC regime have already exceeded the R1 million taxable turnover threshold. Shareholding and business activity are primary disqualifiers for SBC eligibility.ConclusionMore educational initiatives are necessary. The shareholding requirement should be reevaluated, as it may hinder entrepreneurial activities.ContributionThis study enhances knowledge by sharing the perceptions of small business owners who benefit from tax preferences for SMEs and the tax practitioners who assist them with compliance. As tax policies evolve with changing circumstances, it is crucial to continually evaluate whether the SBC and turnover tax regimes achieve their intended objectives. This study will aid the National Treasury and the South African Revenue Service (SARS) in this assessment.

We reassess the driving forces behind the recent decline of corporate tax rates in Europe. Using data for up to 32 countries from 1983 to 2006, we analyze the roles of economic and financial openness as well as tax competition, while allowing for dynamic adjustment to shocks and period-specific and country-specific effects. While there is no evidence that countries that have become more open have reduced their tax rates more, our findings suggest that countries strongly compete over statutory tax rates. A simulation of tax rates in a scenario with no cross-sectional dependence in tax setting suggests that, in the absence of tax competition, the mean statutory tax rate of Western European countries in 2006 would have been about 12.5 percentage points above its actual level. We conclude that the recent downward trend in corporate taxes is mainly a result of tax competition.

ABSTRACT Healthcare financing is attracting widespread interest due to the coronavirus pandemic. This study aims to assess federal public healthcare financing in Brazil in the light of a legal framework for minimum spending on health and the effects of economic cycles and crises. A literature review showed that public healthcare funding should increase during crises, which is contrary to what fiscal austerity policies postulate. Different formats of fiscal rules for minimum spending on health are analyzed based on the historical evolution of healthcare financing in Brazil. A simulation shows that linking this spending rule to GDP (and especially to current revenue) gives a pro-cyclical character to healthcare financing, which can make it difficult to guarantee health rights in times of crisis. Thus, a debate arises about the need to revise the rule set by the Constitutional Amendment 95/2016 (EC no. 95/2016) and to establish a parameter for growth in public healthcare expenditure that eliminates its pro-cyclical characteristic and enables the needs of the country to be met after the pandemic. RESUMO O financiamento de sistemas de saúde tem atraído amplo interesse devido à pandemia de coronavírus. Este artigo propõe uma avaliação do financiamento do sistema de saúde público no Brasil para o governo Federal à luz da legislação para gasto mínimo em saúde e dos efeitos de ciclos econômicos e crises. A partir de uma revisão da literatura, é indicado que, em momentos de crise, o financiamento do sistema público de saúde deva aumentar, contrário ao que as políticas de austeridade fiscal postulam. Diferentes formatos de regras fiscais para o gasto mínimo em saúde são analisados com base na evolução histórica do financiamento de saúde pública no Brasil. Uma simulação mostra que vincular essa regra de gasto ao PIB, e, principalmente, à receita corrente, atribui um caráter pró-cíclico ao financiamento do sistema público de saúde, o que dificulta a garantia do direito à saúde em momentos de crise. Assim, emerge o debate sobre a necessidade de revisar a regra estabelecida pela Emenda Constitucional nº 95/2016 e definir uma regra de crescimento para o gasto no sistema público de saúde que elimine o traço pró-cíclico e permita que as necessidades pós-pandemia do país sejam atendidas.

PurposeAn intractable effect of revenue and expense recognition based on tax regulation and accounting rules is unresolved and may be manageable only by reducing the value of deferred taxes. Therefore, in this study, the authors examined the relationship between the International Accounting Standard 12 (IAS 12) and deferred income taxes associated with tax and accounting rules.Design/methodology/approachThe authors used a large sample of balanced data from 144 firms across 1992–2019. To mitigate the problem of superfluous results, the authors used the same number of firms and years for pre- and post-IAS 12 periods. The authors employed robust econometric estimations to establish the impact of IAS 12 on deferred tax.FindingsThe regression results show that deferred tax assets decreased significantly, whereas deferred tax liabilities increased significantly, in the post-IAS 12 period. These contrasting results imply that IAS 12 implementation has increased conservatism and prudence in financial reporting. However, the authors find that the increase in deferred tax assets post-IAS 12 is value destructive, suggesting that its implementation has unintended consequences. The results are robust to alternative measurements and econometric identification strategies.Originality/valueWhile prior studies have explored topics such as deferred tax measurement and the impact of income and expense recognition, the authors specifically analyzed how IAS 12 affects deferred taxes and their effect on the market valuation. The authors find that certain accounting standards may not be relevant to the capital market.

Policies to reduce aggressive tax avoidance are increasingly being implemented or discussed in many countries around the world. Tax authorities hope that such policies will generate new tax revenue by increasing overall tax compliance. We present an experimental design to investigate the effect of a stylized anti-avoidance tax policy on tax compliance behavior. We highlight that anti-avoidance tax policies that reduce tax avoidance can also induce an increase in tax evasion (“substitution effect”), which limits the additional tax revenue these policies will generate. We show that the degree of substitution depends crucially on behavioral factors such as tax morale. Policymakers therefore also need to consider behavioral features while designing such policies and estimating their potential effects.

Dual income tax systems can suffer from income that shifts from progressively taxed labour income to capital income, which is taxed at a lower, flat rate. This paper empirically examines the 1993 Finnish dual income tax reform, which radically reduced the marginal tax rates on capital income for some, but not all, taxpayers. We measure how overall taxable income and the relative shares of capital income and labour income reacted to the reform. We find that the reform led to a small positive impact on overall taxable income, but part of the positive response was probably offset by income shifting among the self-employed.

We assess the quantitative impact of two reforms to corporation tax, which would eliminate the differential treatment of debt and equity: the allowance for corporate equity (ACE) and the comprehensive business income tax (CBIT). We explore the impact of these reforms on various decision margins, using an applied general equilibrium model for the EU calibrated with recent empirical estimates of elasticities. The results suggest that, if governments adjust statutory corporate tax rates to balance their budget, profit shifting and discrete location render CBIT more attractive for most individual European countries. European coordination makes a joint ACE more, and a joint CBIT less efficient. A combination of ACE and CBIT is always welfare improving.

U.S. income tax rules may encourage a U.S.-headquartered multinational corporation (MNC) to adopt a structure with a tax haven parent. We study data from firms that conducted initial public offerings in the United States between 1997 and 2010 and offer evidence that U.S.-headquartered MNCs rarely incorporate in tax havens. Of the 918 U.S.-headquartered MNCs that we identify, only 27 are incorporated in tax havens. Others have pointed to the recent increase in the proportion of firms conducting U.S. IPOs that incorporate in tax havens as possible evidence that more U.S.-headquartered MNCs make this decision. We show instead that Chinese-headquartered firms drive this increase.

The growth in e-commerce has dramatically altered U.S. business practices in ways that erode states' ability to collect sales taxes. States have attempted to reclaim the sales tax base but are constrained by current nexus rules that allow firms to choose whether to establish taxability based on a decision to establish physical presence. We examine how state tax policies affect the propensity of firms to establish nexus in each state. We find that firms are more likely to have nexus in large states, and that the effect of policy on nexus decisions appears to be relatively immediate and a function of current sales tax rates and base breadth. Employment rises with nexus in states where the sales tax is low.