The IRS Audit Techniques Guides (ATGs) focus on developing highly trained examiners for a particular market segment or issue. A market segment may be an industry such as construction or entertainment, a profession like attorneys or real estate agents or an issue like passive activity losses,...

Strategies for dealing with evasion include such standard policies as stricter enforcement (e.g., increased audit rates, more extensive audits, larger penalties). However, the exact responses of taxpayers to these enforcement measures are quite difficult to measure with existing field data, and...

The canonical model of Allingham and Sandmo (1972) predicts that firms evade taxes by optimally trading off between the costs and benefits of evasion. However, there is no direct evidence that firms react to audits in this way. We conducted a large-scale field experiment in collaboration with...

We solve the problem of a representative agent who maximises the expected present utility of his intertemporal consumption under the assumption that an optimal fraction of his wealth is hidden to the tax authorities (we show conditions under which evasion is expedient). Evasion affects the...

The canonical model of Allingham and Sandmo (1972) predicts that firms evade taxes by optimally trading off between the costs and benefits of evasion. However, there is no direct evidence that firms react to audits in this way. We conducted a large-scale field experiment in collaboration with...

Using a large proprietary data set from the internal records of the Finnish Tax Administration for the fiscal year 2011, we examine the factors that trigger adjustments by the tax authority to the taxable income reported by around 25,000 small private companies. Using that data, we develop a new...

Reducing tax evasion is a key priority for many governments, particularly in developing countries. A growing literature has argued that the ability to verify taxpayer self-reports against reports from third parties is critical for modern tax enforcement and the growth of state capacity. However,...

Contrary to common expectations, this paper shows that legal enforcement may increase subsequent corporate misbehavior. Using IRS data, we find that corporations gradually increase their tax aggressiveness after an audit for a few years and then reduce it sharply. We show that this U-shaped...