Determinants of the Variability of Corporate Effective Tax Rates: Evidence from Romanian Listed Companies

In this paper, I investigate the determinants of firm-specific corporate tax rates for nonfinancial companies listed on the Bucharest Stock Exchange over a twelve-year period (2000-2011). Using a fixed effects panel data estimation model to account for individual firm heterogeneity, I find that capital intensity, leverage, and loss carry-forward provisions negatively affect corporate effective tax rates; company size and labor intensity have no effect; and profitability has a positive effect. Going beyond the deterministic investigation, the paper cannot provide evidence of tax-planning activities for the companies considered. Moreover, legal differences between financial and tax accounting related to provisions are found to have a positive effect on firm-specific effective tax rates.     

不同生命周期阶段的上市公司税收筹划行为研究

有效税收筹划不仅要降低企业的税收成本,还要努力降低税收筹划的非税成本。非税成本因其隐蔽性、间接性而容易被忽视,因而可能使税收筹划的成本（损失）大于其收益。非税成本的形成原因较多、其构成也比较复杂。文章选取沪深A股2008-2012年期间的4974家上市公司作为研究对象,运用多元线性回归模型检验了不同生命周期阶段的上市公司如何在税收节约与非税成本之间进行权衡。经验证据显示,处于成长期和衰退期的上市公司更倾向于采用积极的税收筹划行为,而处于成熟期的上市公司更倾向于采取较为保守稳健的税收筹划行为。结论为企业制定投资策略,监管机制完善管理提供了较好的理论基础。     

Tax Systems in the World: An Empirical Investigation into the Importance of Tax Bases, Administration Costs, Scale and Political Regime

We study the structure of taxation in a sample of 100 democratic and nondemocratic regimes over three time periods. The results provide strong support for several regularities in the world as a whole, specifically (1) scale effect: utilization of each tax source increases as the government expands, (2) base effect: tax systems rely more heavily on relatively larger tax bases, and (3) administrative cost effect: lower costs of administration lead to increased reliance on the corresponding revenue source. We also investigate the role of political regime and find that democracies rely substantially more on other income taxation, possibly because this tax source requires a higher degree of voluntary compliance. JEL Code: H2, D72, D78, E31, E51, F13, P35     

Agency costs,taxes and debt: The UK evidence

This paper provides an empirical examination of the impact of the corporation tax and agency costs on firms' capital structure decisions. Our evidence suggests that the agency costs are the main determinants of corporate borrowing. Consistent with the agency theory, we find that firms that have fewer growth options have more debt in their capital structure. Moreover, our results show that debt mitigates the free cash flow problem and that firms that are more likely to be diversified and less prone to bankruptcy are highly geared. the negative effect of insider shareholding on leverage disappears, however; when all the agency mechanisms are accounted for. In addition, we find that, in the long run, companies that are tax exhausted exhibit significantly lower debt ratios than tax-paying firms. However, in the short run, firms' capital structure decisions are not affected by taxation.     

“两税合一”对台湾上市公司股利税资本化的影响

本文以1994～2001年两税合一税制实施前后的台湾上市公司为样本，运用Harris-Kemsley股利税后收益模型，探讨所得税制改革对权益投资者收益的影响，以及两税合一税制的实施对股利税资本化的影响。实证结果表明：两税合一税制实施前，台湾上市公司的末分配盈余与其股利税资本化程度负相关，即股利税资本化效果存在；两税合一税制实施后，台湾上市公司的股利税资本化程度低于两税合一前的程度。     

Compliance costs for personal income tax in a transition country: the case of Slovenia

The evaluation of taxpayers' compliance costs has grown in significance within tax system research over the last 15 years. In 2001, two surveys of VAT and personal income taxpayers were conducted in Slovenia to evaluate compliance costs for the 2000 fiscal year. This paper presents the results of research into compliance costs for personal income tax in Slovenia. The results show that compliance costs for personal income tax are relatively low, primarily because most taxpayers consider filing their tax declaration to be a simple procedure, which means that consultancy costs are low.     

Corporate tax reforms and tax-motivated profit shifting: evidence from the EU

This paper examines whether the profit-shifting trend in Europe during 2003–2013 can be explained by tax policy changes. Consistent with prior literature, we find that affiliates’ profits are sensitive to tax rate changes. However, we document that tax base–broadening reforms have mitigated the incentives for both inward and outward profit shifting. In particular, we find that anti-avoidance rules prevent multinational companies from shifting profits out of their foreign affiliates, whereas other tax base–broadening rules, such as restrictions on the deductibility of tax losses or on group tax relief, reduce the incentives for multinational companies to shift profits into foreign affiliates. Furthermore, we find evidence of a downward trend in profit shifting across European countries, especially when the tax enforcement is stricter. Overall, these results suggest that broader tax bases and stricter tax enforcement have successfully curbed this particular tax strategy.     

Political costs and an intraperiod accounting choice for export tax credits

This study examines the effects of political and debt contracting costs on an intraperiod accounting choice. Export tax credits that New Zealand companies receive may be credited to sales ot to income tax expense. Compared to the credit to sales method, the tax reduction method reduces a company's reported tax rate and interest coverage ratio, both of which could have adverse economic consequences. The results indicate the credit to sales method is preferred by large companies that attract political scrutiny because of their low tax rates. The level of a firm's interest coverage is also related to that accounting choice.     

CAP Forum on E‐Business: E‐Commerce and Tax Planning: Canadian Experiences*

This paper explores the deployment of e‐commerce by Canadian firms in the global marketplace, with an emphasis on the implications of e‐commerce for tax planning. The business press and various government task forces have discussed challenges raised by e‐commerce for traditional “source‐based” tax systems; however, these discussions have presented little evidence of firms' reliance on e‐commerce for tax‐planning purposes. Similarly, academic research has seldom examined whether firms' decisions to implement e‐commerce are by tax‐planning considerations. It is thus largely unknown whether firms actively consider taxation issues when evaluating e‐commerce, how the factors that have been identified as influencing decisions to implement e‐commerce systems are balanced against tax‐planning considerations, and what barriers might exist in practice to using e‐commerce for tax planning. We choose a qualitative interview‐based approach to explore these issues. Our findings suggest that tax planning is not considered by most of our respondent companies in their decisions to deploy e‐commerce. The companies we interviewed tended to implement e‐commerce over several years, starting with back‐office technologies like enterprise resource planning (ERP) systems. Accordingly, the ability to perform online sales transactions, which is a key component of using e‐commerce for tax planning, often was not yet in place. One implication of these results is that if concerns over tax revenue losses are realistic, tax policymakers may have some time to refine tax legislation to address the challenges raised by e‐commerce.     

Tax Motivated Income Shifting and Korean Business Groups (Chaebol)

Abstract:  This paper examines tax-induced income shifting behavior among affiliated firms in Korean business groups (chaebols). Korean corporate income tax law does not require consolidated tax returns, and business groups with a large number of affiliated member firms have incentives to shift income across member firms to reduce the overall taxes of the group. For a large number of Korean companies that are subject to external audits, we perform univariate and multivariate regression analyses on the income shifting behavior of chaebol firms compared with non-chaebol control firms. Our evidence suggests that tax-motivated income shifting activities exist among chaebol firms, and that the extent of income shifting is found to depend on its effect on non-tax cost factors such as the earnings, leverage, and cash flow rights of the controlling shareholders. We also find that income shifting is more pronounced in chaebol firms where the control-cash flow divergence is relatively large, suggesting that income shifting is affected by the controlling shareholders' opportunism. Our study provides some insights on the intra-group income shifting activities where research is limited.     

Tax Administration Reform and Taxpayer Compliance in India

This paper evaluates effects on tax compliance of simple reforms in personnel policy in the Indian income tax administration. Taxpayers voluntarily disclosing higher incomes are currently assigned to special assessment units. To avoid this, high income taxpayers have an added incentive to understate their incomes. Empirical evidence consistent with this hypothesis is found. It explains spillover effects of enforcement efforts across assessment units. We incorporate these spillovers in estimating revenue effects of increased support staff. The results imply significant compliance gains would accrue from expanded staff employment and changes in assignment procedures for staff and taxpayers.     

The “flat tax(es)”: principles and experience

This paper reviews experience with the ‘flat taxes’ that have been adopted in many countries in recent years. It stresses that they differ fundamentally, and that empirical evidence on their effects is very limited. This precludes simple generalization, but several lessons emerge: there is no sign of Laffer-type behavioral responses generating revenue increases from the tax cut elements of these reforms; their impact on compliance is theoretically ambiguous, but there is evidence for Russia that compliance did improve; the distributional effects of the flat taxes are not unambiguously regressive, and in some cases, they may have increased progressivity (including through the impact on compliance); adoption of the flat tax has not resolved common challenges in taxing capital income; and it may have strengthened, not weakened, the automatic stabilizers. A key reason for adoption of the flat tax seems to have been to signal a fundamental shift toward a market-oriented policy regime. Looking forward, as the value of the signal diminishes and familiar political economy forces reassert themselves, the question is not so much whether more countries will adopt a flat tax as whether those that have will move away from it.      

Accounting Policy Choice: The Relationship Between Corporate Tax Burdens and Company Size

Whilst there have been a number of papers that test the Watts and Zimmerman positive accounting hypotheses in a UK setting, no similar test has been made of the size effect using corporate tax burdens as a proxy for political costs. Using data for 5,998 year-ends from 1968 to 1993 this paper finds that: during 1968–79 there is evidence of a size effect; in a number of years a negative association between firm size and tax burden exists; and of the five industry categories examined, the 'mineral extractive' industry had the highest tax burden throughout the period 1968–1979.     

Did PCAOB rules on ethics,independence, and tax services influence financial reporting for income taxes?

The PCAOB Rules on Ethics, Independence, and Tax Services prohibited accounting firms from providing aggressive tax-position transactions to their audit clients. We exploit this setting to examine whether the scrutiny of the PCAOB affects companies’ financial reporting for income tax accounts. We find robust evidence that the overall quality of the income tax accrual increased after companies significantly reduced auditor-provided tax service (APTS) fees in response to the regulation. We show that this improvement is a function of companies’ pre-regulation tax aggressiveness. In addition, we find evidence that after the fee reductions, tax-aggressive companies increased financial statement reserves for uncertain income tax positions without changing tax-aggressive decisions. Overall, our findings are consistent with an improvement in the financial reporting for income taxes under regulatory scrutiny which is more pronounced for companies that were tax aggressive in the pre-regulation period.     

Taxpayers' Behavioural Responses and Measures of Tax Compliance ‘Gaps’: A Critique and a New Measure

The work of Feldstein (1995 and 1999) has stimulated substantial conceptual and empirical advances in economists' approaches to analysing taxpayers' behavioural responses to changes in tax rates. Meanwhile, a largely independent literature proposing and applying alternative measures of tax compliance has also developed in recent years, which has sought to provide tax agencies with tools to identify the extent of tax non‐compliance as a first step to designing policies to improve compliance. In this context, measures of ‘tax gaps’ – the difference between actual tax collected and the potential tax collection under full compliance with the tax code – have become the primary measures of tax non‐compliance via (legal) avoidance and/or (illegal) evasion. In this paper, we argue that the tax gap as conventionally defined is conceptually flawed because it fails to incorporate behavioural responses by taxpayers. We show that conventional tax gap measures, which ignore the presence of behavioural responses, exaggerate the degree of non‐compliance. This potentially applies both to indirect taxes (such as the ‘VAT gap’) and direct (income) taxes. Further, where these conventional tax gap measures motivate reforms designed to increase the tax compliance rate, they will likely have a tax‐base‐reducing effect and hence generate a smaller increase in realised tax revenues than would be anticipated from the tax gap estimate.     

我国税收征管制度变迁的路径选择——基于税收征纳交易费用的分析

与发达国家相比,我国征税费用过高;不同地区间税收征收成本差别较大;征税费用与纳税费用的比例不平衡并经常相互转化;由"寻租"、"设租"导致的税款流失严重。这些现象说明,我国的税收征蚋交易费用还不够合理。建议通过推进征纳系统的信息化、组织结构的扁平化、征税流程的精细化等有效措施,来实现我国以节约税收征纳交易费用为导向的税收征管制度变迁。     

Host-country governance, tax treaties and US direct investment abroad

We investigate how the quality of the host-country governance and a bilateral US income tax treaty affect the rates of return that US companies require on their foreign direct investment (FDI). Using indexes of corruption and political instability, we find that poor governance causes the companies to require significantly higher rates of return. This lends support to earlier authors who have concluded that poor governance discourages both local investment and inward FDI. After accounting for the quality of host-country governance, however, no evidence could be found that an income tax treaty has any effect on the required rates of return.      

高管个人特征与公司税负

以我国上市公司1992～2009年的高管变更及高管个人特征数据为样本,实证分析公司高管个人特征与公司税负之间的关系。研究结果表明,公司高管的变更会显著影响公司税负的大小,且该影响发挥作用的时间具有一定的滞后性。公司高管的任期长短、专业背景等个人特征是影响公司税负的重要因素。     

公司税收规避、税率持续性与股票收益波动率

从税率平稳性角度看,避税活动是否会增加税率波动性进而给企业带来高风险是一个值得探讨的重要问题。从动态视角研究发现,避税是一种策略性行为,低实际税率的企业相比高实际税率的企业,其税率在长时期内能够保持平稳。此外,避税活动并不一定会带来未来税率和股票收益的波动性。这说明公司通常采用持续、稳定的税收策略,不会带来公司风险的激增。进一步研究发现：节税率的波动性与公司未来股票收益波动存在着显著正相关,即当避税引起税率波动较大时,会带来公司股票收益风险的增加。