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Journal of Economic Perspectives

ISSN 0895-3309 (Print) | ISSN 1944-7965 (Online)

Measuring the Effects of Corporate Tax Cuts

  • Alan J. Auerbach
Journal of Economic Perspectives
vol. 32, no. 4, Fall 2018
(pp. 97–120)
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Abstract

On December 22, 2017, President Donald Trump signed the Tax Cuts and Jobs Act (TCJA), the most sweeping revision of US tax law since the Tax Reform Act of 1986. The law introduced many significant changes. However, perhaps none was as important as the changes in the treatment of traditional "C" corporations—those corporations subject to a separate corporate income tax. Beginning in 2018, the federal corporate tax rate fell from 35 percent to 21 percent, some investment qualified for immediate deduction as an expense, and multinational corporations faced a substantially modified treatment of their activities. This paper seeks to evaluate the impact of the Tax Cuts and Jobs Act to understand its effects on resource allocation and distribution. It compares US corporate tax rates to other countries before the 2017 tax law, and describes ways in which the US corporate sector has evolved that are especially relevant to tax policy. The discussion then turns the main changes of the Tax Cuts and Jobs Act of 2017 for the corporate income tax. A range of estimates suggests that the law is likely to contribute to increased US capital investment and, through that, an increase in US wages. The magnitude of these increases is extremely difficult to predict. Indeed, the public debate about the benefits of the new corporate tax provisions enacted (and the alternatives not adopted) has highlighted the limitations of standard approaches in distributional analysis to assigning corporate tax burdens.

Citation

Auerbach, Alan J. 2018. "Measuring the Effects of Corporate Tax Cuts." Journal of Economic Perspectives, 32 (4): 97–120. DOI: 10.1257/jep.32.4.97

Additional Materials

JEL Classification

  • H25 Business Taxes and Subsidies including sales and value-added (VAT)
  • H32 Fiscal Policies and Behavior of Economic Agents: Firm
  • K34 Tax Law
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