Zohran Mamdani, a candidate for mayor of New York City, has proposed a tax increase targeting millionaires. His plan includes an additional 2 percentage points on the income tax for individuals earning over $1 million annually. Should this proposal pass, it would elevate the city’s top income tax rate to 52 percent when combined with federal and state taxes. While Mamdani’s proposal has garnered support, particularly among younger voters, it faces significant hurdles, including the need for approval from New York Governor Kathy Hochul, who has expressed opposition.
Supporters of Mamdani’s initiative often cite the tax systems of Scandinavia, specifically Sweden and Denmark, as models for progressive taxation. Advocates argue that these countries demonstrate how high taxes on the wealthy can fund robust social programs. However, a closer examination reveals that the realities of Scandinavian taxation are more complex than they appear.
Understanding Scandinavian Tax Systems
Sweden and Denmark are frequently perceived as successful examples of socialism, boasting highly progressive tax structures. Yet, both countries have moved away from socialist principles and have established some of the world’s most liberal economies. In these nations, citizens enjoy a high degree of economic freedom, allowing them to start and run businesses with minimal government interference. This economic landscape underscores why Scandinavian leaders have been keen to clarify that their systems do not fit the traditional socialist mold.
Research from the Fraser Institute, part of its Realities of Socialism project, highlights the historical context of taxation in Sweden and Denmark. Both countries have grappled with the limitations of relying heavily on taxes from high-income earners. In the 1970s, Sweden imposed steep taxes on entrepreneurs and investors, which resulted in a decline in business investment and prompted an exodus of successful individuals. Notable figures, such as the founder of IKEA and sports icons like tennis player Björn Borg, relocated to more favorable tax environments during this period.
The backlash from these experiences led to a significant tax reform in 1990, wherein Sweden adopted a flatter income tax structure. This reform aimed to distribute the tax burden more evenly across income levels. Today, while Sweden’s top personal income tax rate is among the highest globally at 55 percent, it kicks in at a relatively low income threshold, making the overall system flatter than many might assume.
The Case for Broader Tax Contributions
Denmark mirrors this approach, emphasizing a balanced contribution to public finances. Both countries recognize that a well-funded welfare state cannot depend solely on the wealth of a few individuals. This perspective challenges the narrative that progressive taxation can solely rely on taxing the rich, a notion often promoted in political discourse.
Critics of the current tax proposals in the United States, including Mamdani’s plan, argue that the U.S. already has a relatively progressive tax system compared to those in Scandinavia. A forthcoming study by the Fraser Institute indicates that Sweden and Denmark rank among the least progressive tax systems within the Organisation for Economic Co-operation and Development (OECD). In contrast, states like New York have some of the most progressive tax structures.
While it can be politically appealing to promise expansive services funded by taxing high earners, the experiences of Sweden and Denmark offer important lessons. As history has shown, there is a limit to how far a tax system can stretch without risking economic stability. The notion that generous public services can be sustained indefinitely through high taxation on the wealthy may not hold true in practice.
As the debate over tax policy continues in New York and beyond, understanding these international examples provides valuable insight into the potential consequences of such proposals. The lessons learned from Scandinavia suggest that sustainable economic systems require broad participation and a careful balance in tax structures to avoid the pitfalls of over-reliance on a small segment of the population.
