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...

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...

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...

This Handbook entry presents a conceptual, normative overview of the subject of taxation. It emphasizes the relationships among the main functions of taxation—notably, raising revenue, redistributing income, and correcting externalities—and the mapping between these functions and various...

This paper examines the role of administrative factors in tax reform. How difficult is it for taxpayers to comply with and understand the current tax system? How much does operating the system cost? How well are taxes enforced? How would modifying the income tax or starting over with a new...

Can governments successfully combat bureaucratic corruption by "hiring integrity" from the private sector? This paper examines the impact of hiring private firms to collect information for government anti-corruption efforts. In the past two decades, a number of developing countries have hired...

Since Sandmo (1981), many articles have analyzed optimal fiscal policies in economies with tax evasion. All share a feature: they assume that the cost of enforcing the tax law is exogenous. However, governments often invest resources to reduce these enforcement costs. In a very simple model, we...

Tax authorities around the world are increasingly employing data mining and machine learning algorithms to predict individual behaviour. Although the traditional literature on optimal tax adminis- tration provides useful tools for ex-post evaluation of policies, it dis- regards the problem of...

We analyze the optimal taxation of firms when the government faces fixed (per-firm) administrative costs of tax collection. The tax instruments at the government's disposal are a fixed (per-firm) fee and a linear tax on output. If all firms in an industry are taxed, we show that it is optimal to...

As is broadly recognized, the straightforward application of the Diamond-Mirrlees (1971) production efficiency theorem implies that when lump-sum taxation is not available, then it is optimal for the government in a small open economy to rely on taxes on the net demand of households rather than...