This ‘How To Note’ was originally published by the International Monetary Fund (IMF)
Special economic zones (SEZs) are widely used to attract investment, promote exports, and support industrialization, yet their performance is uneven and often uncertain. This How To Note reviews global experience with SEZs—their rapid expansion, diverse design, and mixed economic impact—and highlights that many operate as enclaves with limited spillovers and high fiscal costs. While generous tax incentives are common, evidence suggests they are rarely decisive drivers of investment and can lead to significant revenue losses, distortions, and opportunities for profit shifting. The note provides practical guidance for policymakers on how to design and tax SEZs effectively. It emphasizes that taxation should generally remain neutral relative to the domestic economy, with any incentives closely aligned to clear policy objectives, time-bound, and subject to regular evaluation. Priority should be given to well-designed indirect tax regimes and to cost-based investment incentives rather than profit-based tax holidays. Ultimately, the success of SEZs depends far more on fundamentals—such as infrastructure, governance, regulatory efficiency, and integration with the domestic economy—than on tax breaks alone.
Introduction
Special economic zones (SEZs) are geographically delimited areas with economic regulations that differ from the rest of the jurisdiction in which they are located. SEZs offer a variety of services such as infrastructure, facilities, and utilities, as well as a range of incentives, including tax breaks, streamlined customs procedures, and light regulatory frameworks (IMF 2024a). Their main aim is to promote a conducive business environment to attract foreign and domestic investments, create jobs, promote exports, and generate positive spillovers such as skills, innovation, and technology transfers (Akinci and Crittle 2008). They can take various forms, such as specialized or diversified free zones, free trade zones (FTZs), export promotion zones (EPZs), revitalization zones, or charter cities, each designed to foster specific types of economic activity.
The popularity of SEZs has soared since the late 1980s. Traditionally established as rare trans-shipment ports on key international trade routes (for instance, Gibraltar, Hong Kong, and Singapore), SEZs now exist in almost every country (Akinci and Crittle 2008). The number of SEZs has exploded from only 79 in 1975 to over 6,000 today (UNCTAD 2023)—over 2,000 new SEZs were established globally between 1997 and 2002. Their increasing popularity can be attributed to their perceived role as a quick solution for countries seeking industrialization and economic transformation. They are viewed as tools to facilitate participation in global value chains, attract foreign direct investment (FDI), and address immediate market challenges without necessitating comprehensive structural reforms. Despite their expansion, the benefits of SEZs are uncertain, and they come with high sunken costs …
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