Determinants of the variability in corporate effective tax rates and tax reform: Evidence from Australia

This study examines the determinants of the variability in corporate effective tax rates in Australia spanning the Ralph Review of Business Taxation reform. Our results indicate that corporate effective tax rates are associated with several major firm-specific characteristics, including firm size, capital structure (leverage) and asset mix (capital intensity, inventory intensity and R&D intensity). While the Ralph Review tax reform had a significant impact on many of these associations, corporate effective tax rates continue to be associated with firm size, capital structure and asset mix after the tax reform.     

The Effect of Taxes on Corporate Financing Decisions: Evidence from a Panel of Italian Firms

This paper provides additional evidence on the relationship between corporate taxes and debt using panel data on Italian companies. The panel covers 1054 companies for the years 1982–1994.The paper follows the Graham-Shevlin methodology for calculating company specific marginal tax rates (MTR) relying on the non-linearity of corporate tax schedules resulting from company losses and the ensuing tax provisions (carry-forward and backward rules). In the period covered by the panel there were in Italy two taxes on corporate income (IRPEG and ILOR), with different loss carry-forward rules, whose statutory tax rates and tax bases changed several times. For these reasons the simulated MTRs display both cross-sectional and time-series variation.The paper tests whether taxes encourage the use of debt by analysing incremental financing decisions. In order to cope with the endogeneity of the MTR the paper considers two different specifications. The first uses the lagged value of the simulated MTR. The second employs the estimate of before-financing MTR proposed by Graham et al. (1998). Significant cross-sectional tax effects are identified under both specifications whereas time-series variation cannot be identified if due account is taken of firm-fixed tax effects.The paper also investigates whether personal taxes affect corporate financing decisions. The MTR may either overstate or understate the fiscal benefit of debt financing according to whether, at the personal level, interest income is taxed at a rate that is higher or lower than the tax rate on returns from common stocks. Differences in the dividend-payout ratio across companies and several reforms in interest, dividend and capital gains taxation provide sufficient cross-section and time-series variations to identify the effect of personal taxes on debt usage.     

Evidence of the effect of domicile on corporate average effective tax rates in the European Union

We estimate (worldwide) corporate average effective tax rates (ETRs) from financial statements for companies domiciled in European Union (EU) member states during 7 years from 1990 to 1996. Our objective is to compare the tax rate effectively experienced by each company with the corporate statutory tax rate (STR) in the EU country in which each company is domiciled. The difference between the corporate statutory tax rate and the financial statement-based corporate average effective tax rate provides information on the magnitude of tax incentives provided by governments within the EU. These tax incentives come on top of the directly observable differences in statutory tax rates between EU member states. We find (1) that the use of tax incentives, over and above differences in STRs, differs substantially between EU member states (corporate domiciles) and (2) that the provision of tax incentives does not have the effect of equalizing corporate ETRs between EU member states (corporate domiciles).     

Does Private Country-by-Country Reporting Deter Tax Avoidance and Income Shifting? Evidence from BEPS Action Item 13

To combat tax avoidance by multinational corporations, the Organisation for Economic Co-operation and Development introduced country-by-country reporting (CbCr), requiring firms to provide tax authorities with a geographic breakdown of their profitability and activities. Treating the introduction of CbCr in the European Union as a shock to private disclosure requirements, this study examines the effect on corporate tax outcomes. Exploiting the €750 million revenue threshold for disclosure and employing regression-discontinuity and difference-in-differences designs, I document a 1–2 percentage point increase in consolidated GAAP effective tax rates among affected firms. I also find evidence consistent with a decline in tax-motivated income shifting, starting in 2018. These results suggest that, although private geographic disclosures can deter corporate tax avoidance, so far, the regulations have had a limited effect on tax-motivated income shifting. My findings have policy implications for the global implementation of private CbCr and extend the debate on public versus private disclosure of tax information.     

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。     

Corporate Tax Harmonization in Europe: It's All About Compliance

Although the hope may be to reduce economic distortions in captial markets, the primary focus of corporate tax consolidation among member states of a federation is to reduce compliance and administrative burdens. For example, the Canadian provinces have sufficient flexibility to determine their corporate tax policies, and effective tax rates on captial vary considerably by province, but they still have achieved a considerable degree of harmonization of tax bases. The European Union should also try to implement a consolidated tax base for companies. A compulsory base would be best, but it is likely that the optional consolidated tax base is most practical at this time.     

Directors’ and Officers’ Liability Insurance and Aggressive Tax‐Reporting Activities: Evidence from Canada

This paper examines the relationship between directors’ and officers’ liability insurance (D&O insurance) and firms’ aggressive tax reporting. Using large Canadian public companies listed on the TSX300 and relying on several measures to capture aggressive tax‐reporting activities, including GAAP effective tax rates, cash effective tax rates, and the total and residual book‐tax differences, I find that D&O insurance exhibits a strong negative relationship with the GAAP effective tax rates and a strong positive relationship with both the total and residual book‐tax differences. However, there is generally no evidence showing that D&O insurance is associated with the cash effective tax rates. I interpret these results as indicating that D&O insurance reduces the tax expenses reported in the financial statements but not the actual tax paid. In other words, D&O insurance contributes to financial tax management but not to cash tax savings. Further tests in this study reveal that firms with fluctuating D&O coverage limits engage in more aggressive tax reporting than other firms, suggesting that managers may consider the level of D&O insurance that they purchase when they make aggressive tax‐reporting decisions.     

税收优惠方式对研发投入激励效应研究

以我国2014 ～2020年A股上市公司为样本,利用手工搜集整理的独特数据,获取了上市公司实际享受的税率优惠、加计扣除、加速折旧摊销的金额,并以此为基础检验不同税收优惠方式对企业研发投入的激励效应.实证结果表明,税率优惠、加计扣除、加速折旧摊销这三种税收优惠方式都能激励企业加大研发投入,三种税收优惠方式对研发投入的激励...     

Sharing corporate tax knowledge with external advisers

Tax knowledge is critical for companies to comply with tax laws and engage in tax planning and avoidance. Firms rely on external advisers in handling tax issues, however, sharing corporate tax knowledge with external advisers entails both opportunities and risks. We identify four relational factors that are associated with the decision of corporate taxpayers to share knowledge with external tax advisers. Survey data from 221 corporate taxpayers reveals a novel distinction between operational and strategic knowledge sharing. The operational dimension has a functional nature, whereas the strategic dimension has a more intentional character. Accessibility to, and a positive experience with, external advisers enables operational knowledge sharing. When firms perceive specific tax benefits in relation to sharing knowledge, they are more inclined to engage in operational knowledge sharing with external advisers but less prone to strategic knowledge sharing. Instead, strategic knowledge sharing is enhanced when firms have access to, and value the knowledge of their advisers, although this latter factor plays no significant role in explaining operational knowledge sharing. A positive experience with advisers also associates with strategic knowledge sharing. We link our results to other research and discuss implications for regulators considering, or requiring, firm disclosures of corporate tax strategy.     

Corporate tax policy and incorporation in the EU

In Europe, declining corporate tax rates have come along with rising tax-to-GDP ratios. This paper explores to what extent income shifting from the personal to the corporate tax base can explain these diverging developments. We exploit a panel of European data on legal form of business to analyze income shifting via incorporation. The results suggest that the effect is significant and large. It implies that the revenue effects of lower corporate tax rates—possibly induced by tax competition—will partly show up in lower personal tax revenues rather than lower corporate tax revenues. Simulations suggest that between 12% and 21% of corporate tax revenue can be attributed to income shifting. Income shifting is found to have raised the corporate tax-to-GDP ratio by some 0.25% points since the early 1990s. This research was carried out while Ruud de Mooij was a visiting fellow at DG ECFIN in October 2006. The views expressed in this Article are those of the authors and do not necessarily reflect the official position of the European Commission.     

Exploring Formula Allocation for the European Union

This paper explores the efficiency impacts of two methods of consolidated base taxation with formula allocation under consideration in the European Union. The first method, common (consolidated) base taxation (CCBT), would allow companies to choose a single tax base for their EU-wide operations. This tax base would be common throughout the participating member states. The second method, Home State taxation (HST), would also allow companies to choose a single tax base for their EU-wide operations. But, unlike with CCBT, the tax base would be defined according to the rules in the company's residence, or home, state. Thus, several different tax bases would exist within the EU. Both methods would use a common formula to distribute profits across countries. This paper finds that since countries continue to set corporate income tax rates, economic inefficiencies continue to exist under both methods. However, under HST, since the tax base differs according to residence, additional inefficiencies may arise depending on whether countries reduced their tax rates to combat the incentive for companies to relocate to locations with narrow tax bases.     

The role of the corporate income tax as an automatic stabilizer

This paper analyses the effectiveness of the corporate income tax as an automatic stabilizer. It employs a unique firm-level data set of German manufacturers combining financial statements with firm-specific information about credit market restrictions. The results show that approximately 20 per cent of all firms report both positive taxable income and capital market restrictions. Taking account of the income tax rates and the size differences of the firms, we find that demand stabilization through the corporate income tax amounts to about 8 per cent of an initial shock to gross revenues. This stabilization effect varies over the business cycle and tends to increase during cyclical downturns.     

一个有远见的税收制度应当关注未来的税基——特朗普新税法的成本分析及政策建议

20世纪50年代以来,美国企业所得税税率持续下降,政府税收收入也处于较低水平。2017年,特朗普新税法的实施大幅度降低了企业所得税税率,导致政府税收损失远超预期。然而,新税法实施后,美国企业投资和长期经济增长并没有明显改善。本文认为,一个国家经济效率主要取决于税基而非税率,美国政府应通过税收制度改革,增加对企业投资和研发投入的激励,从而扩大税基,实现经济的长期改善。     

An Alternative View on Determinants of the Effective Tax Rate: Evidence from Chinese Listed Companies

This article proposes a new model for determining the effective tax rate (ETR), which incorporates the accounting-tax conformity theory and identifies ETR determinant variables to fit the Chinese taxation context. The results show that the ETR is statistically significantly associated with preferential tax rates, investment gains, nonoperating expenses, and provisions for impaired assets. The accounting-tax difference ETR determinant variables provide more consistent results than previous typical ETR determinants, such as size, return on assets, leverage, and capital intensity.     

Financial leverage and corporate taxation: evidence from German corporate tax return data

To estimate the impact of profit taxation on the financial leverage of corporations, this study uses a pseudopanel constructed from comprehensive corporate tax return microdata for the period 1998–2001, which saw the introduction of major corporate tax reform in Germany. Financial leverage refers to the ratio of long-term debt to total capital. The endogeneity of the firm-specific marginal after-financing corporate income tax rate is controlled for by an instrumental variable approach. The instrument for the observed marginal tax rate is the counterfactual tax rate that a corporation would have faced in a particular period had there been no endogenous change, triggered by the tax reform, of its financial leverage and tax base. This counterfactual tax rate is derived from a detailed microsimulation model of the corporate sector, based on tax return microdata. The marginal tax rate has a statistically significant and relatively large positive effect on corporate leverage; for firms reporting positive profits, an increase of the marginal tax rate of 1 % would increase the financial leverage by approximately 0.7 %, on average. The debt ratio is less responsive to tax incentives for small corporations and firms facing high economic risks.     

Corporate Social Responsibility,Tax Aggressiveness,and Firm Market Value

This paper examines the relationship of corporate social responsibility (CSR), tax aggressiveness, and firm market value. An economic model has been developed to show that profit‐maximization firms are willing to incur additional costs in CSR, such as paying more taxes, as long as they can differentiate their products from non‐CSR firms, and that socially conscious consumers will buy products from CSR firms at prices higher than those of non‐CSR firms. The empirical study in this paper indicates that the higher the CSR ranking of a firm, the less likely a firm is to engage in tax aggressiveness. It also indicates that a reputation of higher CSR will enhance firm market value. Using Canadian companies listed in the S&P/TSX 60 index, I find that both firms’ five‐year effective tax rates and annual effective tax rates are positively associated with their overall CSR scores as well as with their social scores. Firms’ five‐year effective tax rates are also positively associated with their governance index. I also find that firms’ overall CSR ranking and governance scores are positively associated with their market value.     

IAS/IFRS in Belgium: Quantitative analysis of the impact on the tax burden of companies

The adoption of International Accounting Standards and the International Financial Reporting Standards (IAS/IFRS) in the European Union is part of the European Commission's global tax harmonisation policy whose aim is to establish a common (consolidated) corporate tax base. The paper shows that the impact of an IAS/IFRS-based tax accounting on the effective tax burden of Belgian companies is large and not uniform across sectors. Some sectors, like construction and automotive vehicles, experience much larger increases in effective tax burdens than others. Globally the impact is relatively important. The analysis is conducted using the European Tax Analyzer (ETA), a multi-period forward looking program. In a European context, an IAS/IFRS-based tax accounting will increase the effective corporate tax burdens in all selected countries. However, it will most probably maintain the current tax competitive positions of EU countries. The expected broadening of the tax base could constitute an opportunity to reduce the corporate income tax rate without changing the overall effective burden.     

Taxes and production: The case of Pakistan

This paper investigates the effectiveness of investment incentives and corporate income taxes in influencing production and investment decisions in the Pakistani wearing apparel and leather products industries. Three tax instruments are considered: the corporate income tax (CIT), the investment tax credit (ITC), and the capital cost allowance (CCA).The results show that since there are significant capital adjustment costs, it is important to distinguish between the short, intermediate, and long-run effects associated with the tax instruments. Production decisions are relatively more responsive to changes in the ITC rate compared to changes in either CCA or CIT rates in each run. However, only in the long run for the apparel industry are the ITC and CCA rates cost effective in stimulating investment. The CIT is never cost effective. Thus targeted instruments outperform the general CIT instrument. In addition, although the incentive to invest is enhanced, there is little effect on output. Therefore, tax incentives essentially make production techniques more capital intensive.     

Corporate site visit and tax avoidance: The effects of monitoring and tax knowledge dissemination

This study examines how institutional investors' corporate site visits affect tax avoidance. Using quantile regressions, we find that corporate site visits decrease tax avoidance for firms at high levels of tax avoidance and increase tax avoidance for firms at low levels. The effect of corporate site visits on tax avoidance is stronger for firms subject to a weaker information environment, which suggests that institutional investors acquire additional firm-specific information via corporate site visits and play a more effective monitoring role. We also find that visitors who visited low-tax firms in prior years share tax-planning knowledge with high-tax firms which they visit in the current year. The effect of tax knowledge transfer is more pronounced when the visitors are from incumbent institutional shareholders. This study identifies corporate site visits as a channel via which institutional investors serve as monitors to managers and as facilitators of tax knowledge transfer.     

Do investors care about corporate taxes?

This paper conducts a comprehensive examination of the link between corporation tax payment and financial performance in the UK. We find no discernible link between tax rates and stock returns for the UK, no matter how tax payment is measured. This is true throughout the sample period and for both customer-facing and non-customer-facing companies. However, allowing for industry norms and a host of firm characteristics, companies with lower effective tax rates have significantly higher levels of stock market risk. Firms that are reported in the newspapers in a negative way in relation to their level of corporation tax payment experience small negative stock returns, which are partially reversed within a month. However, the initial negative effects and subsequent rebound are both more pronounced for smaller companies. News announcements of the potential involvement of a firm in a corporate inversion (expatriation) result in steeper and much longer-lasting falls in share prices, whereas news stories of a more general nature relating to a firm's tax avoidance or tax payments have little noticeable effect.