Edited by Parthasarathi Shome, this Handbook was written primarily for economists who are responsible for analyzing and evaluating economic policies of developing countries at an applied level, and who would benefit from a comprehensive discussion of the concepts, principles, and prevailing issues of taxation.

Building on previous FAD work in the tax administration field, this paper defines broad criteria for diagnosing the problems in a country’s tax administration and formulating an appropriate reform strategy. To be effective, this strategy should be based on the size of the tax gap and the country’s particular circumstances. This paper discusses some guiding principles which have provided the basis for successful reforms, including: reducing the tax system’s complexity, encouraging taxpayers’ voluntary compliance, differentiating the treatment of taxpayers by their revenue potential, and ensuring the reform’s effective management. Also discussed are specific bottlenecks that hinder the effectiveness of the tax administration’s operations.

This paper explores that in developing economies, sufficient tax revenue is necessary to finance spending on health care, education, and infrastructure—all of which are prerequisites for economic growth and development. However, it is not simply the revenue ratio that matters; the quality of the revenue system is also essential for delivering fair and efficient outcomes. To design a revenue system that fosters sustainable economic and social development and enjoys broad public support, it is essential for tax reform proposals to be carefully assessed, quantitatively analyzed, and openly debated. This requires that decision makers and all stakeholders in the debate have access to the best available facts, data, and independent evidence-based analysis, including about the impact of tax reforms on revenue, the income distribution, and economic performance. The central institutional actor in the decision making process—the executive—is best supported in this process by what is generally called a tax policy unit (TPU). TPUs are tasked to guide and inform the tax policy debate, based on facts, independent data analysis, and multidisciplinary efforts.

This paper discusses the theory and practice of tax design to achieve an efficient and equitable outcome, i.e. in support of inclusive growth. It starts with a discussion of the key principles from tax theory to guide practical tax design. Then, it elaborates on more granular tax policy, discussing key choices in the structure of the personal income tax on labor and capital income, taxes on wealth, the corporate income tax, and consumption taxes. The paper concludes by highlighting the political economy considerations of the issues with concrete recommedtions as to how to implement tax reform.

The Fund has long played a lead role in supporting developing countries’ efforts to improve their revenue mobilization. This paper draws on that experience to review issues and good practice, and to assess prospects in this key area.

This paper explores how fiscal policy can affect medium- to long-term growth. It identifies the main channels through which fiscal policy can influence growth and distills practical lessons for policymakers. The particular mix of policy measures, however, will depend on country-specific conditions, capacities, and preferences. The paper draws on the Fund’s extensive technical assistance on fiscal reforms as well as several analytical studies, including a novel approach for country studies, a statistical analysis of growth accelerations following fiscal reforms, and simulations of an endogenous growth model.