This paper sets out a framework for analyzing optimal interventions by a tax administration, one that parallels and can be closely integrated with established frameworks for thinking about optimal tax policy. At its heart is a summary measure of the impact of administrative interventions — the...

It is well known that the government’s complete failure to enforce a law can nullify that law. But what are the effects of partial enforcement? This Article shows that imperfect enforcement can alter the de facto content of the written law in predictable and beneficial ways. Specifically, in...

We examine the optimal auditing problem of a tax authority when taxpayers can choose both to evade and avoid. For a convex penalty function the incentive-compatibility constraints may bind for the richest taxpayer and at a positive level of both evasion and avoidance. The audit function is...

We study experimentally how taxpayers choose between two tax regimes to fund a public good. The first-best tax regime imposes a general, distortion-free income tax. However, this tax cannot be enforced. The second-best alternative supplements the income tax by a specific commodity tax. This tax...

This article examines the optimal level of tax compliance and the optimal penalty for noncompliance in circumstances in which the substance of the tax law is uncertain that is, when the precise application of the Internal Revenue Code to a particular situation is not clear. In such situations, a...

In a laboratory experiment on tax compliance, we model a situation in which high-income taxpayers can leave a tax system that finances a public good. We compare low-income taxpayers' compliance decisions and equity perceptions across treatments in which they are informed or not informed about...

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...

We study tax compliance under decentralized versus centralized tax enforcement. Using a tax administration reform in Canada, we examine which organizational level of tax enforcement leads to higher compliance. Our results show that there is more tax avoidance under centralized tax enforcement....