Courts have articulated a number of legal tests to distinguish corporate transactions that have a legitimate business or economic purpose from those carried out largely, if not solely, for favorable tax treatment. We outline an approach to analyzing the economic substance of corporate...

We examine novel data on searches for capital-gains-tax-related information to determine when and how taxpayers acquire information. We find strong seasonal increases in information search around tax filing deadlines, suggesting that taxpayers seek information to comply with tax laws. Positive...

As financial engineering becomes more sophisticated, taxing income from capital becomes increasingly difficult. A crucial issue for tax policymakers, then, is the ease or difficulty of implementing tax-advantaged transactions We offer the first empirical study of a high profile strategy known as...

This paper presents a political economy theory of the behavior of fiscal policy over the business cycle. The theory predicts that, in both booms and recessions, fiscal policies are set so that the marginal cost of public funds obeys a submartingale. In the short run, fiscal policy can be...

This paper examines changes in the role that auditors play in corporate tax planning following recentevents, including the well-known accounting scandals, passage of the Sarbanes-Oxley Act, andregulatory actions by the SEC and PCAOB. On the whole, these events have increased thesensitivity to...

This paper documents tax-minimizing investment, in which firms tilt capital purchases toward fiscal year-end to reduce taxes. Between 1984 and 2013, average investment in fiscal Q4 exceeds the average of fiscal Q1 through Q3 by 37%. Q4 spikes occur in the U.S. and internationally. Research...

This paper analyzes the tax haven investment behavior of multinational firms from a country that exempts foreign income from taxation. High foreign tax rates generally encourage firms to invest in tax havens, though significant costs of reallocating taxable income dampen these incentives. The...

There is a large literature showing that the self employed underreport their income to tax authorities. In this paper, we quantify the extent to which the self employed systematically underreport their income to U.S. household surveys. To do so, we use the Engel curve describing the relationship...

In 2008, the IRS initiated efforts to curb the use of offshore accounts to evade taxes. This paper uses administrative microdata to examine the impact of the enforcement efforts on taxpayers' reporting of offshore accounts and income. Enforcement caused approximately 60,000 individuals to...