Tax Debate Heats Up as Mamdani Proposes Millionaire Levy in NYC

Zohran Mamdani, a candidate for mayor of New York City, has garnered attention for his proposal to impose an additional 2 percentage point tax on individuals earning more than $1 million annually. If implemented, this would raise the total tax burden for high earners to approximately 52 percent, incorporating federal, state, and city tax rates. However, for Mamdani’s plan to become reality, it requires approval from state authorities, where Governor Kathy Hochul has expressed reservations.
Supporters of the proposal, particularly within the Democratic Socialist movement, tout it as a means of achieving greater fairness in taxation. They frequently look to the examples set by Scandinavian countries such as Sweden and Denmark as models of progressive tax structures. Yet, a closer examination reveals that these nations are not as socialist as often portrayed, and their tax systems are more nuanced than many believe.
Historically, both Sweden and Denmark implemented progressive taxation to fund expansive welfare states. Yet, they have also experienced significant pushback against excessively high taxes. In the 1970s, Sweden imposed high tax rates on wealthy individuals and businesses, which ultimately led to a decline in investment and economic activity. Notable figures, including the founder of IKEA, left Sweden for more favorable tax environments, highlighting the challenges associated with high taxation.
The repercussions of this approach were significant enough that Sweden restructured its tax code in 1990, shifting to a flatter personal income tax system. This change allowed for a more sustainable revenue model that did not rely solely on taxing high-income earners. As it stands, Sweden’s top income tax rate is around 55 percent, positioned as one of the highest among developed nations, but this rate applies at a relatively low income threshold.
Denmark has similarly adopted a tax structure that is less progressive than many might assume. While these countries maintain robust social safety nets, they have learned that broad-based contribution is essential for financial sustainability. Both nations have consistently emphasized that a successful welfare state cannot depend exclusively on the wealth generated by a small segment of the population.
Research conducted by the Fraser Institute illustrates that the taxation levels in Sweden and Denmark are among the least progressive within the Organisation for Economic Co-Operation and Development (OECD), countering the narrative that the U.S. tax system is less equitable. In fact, states like New York, with high tax rates on the wealthy, have some of the most progressive tax structures in the country.
The political allure of taxing the wealthy to fund expansive social services is compelling. However, as history from Scandinavia demonstrates, there are limits to how far such policies can be pushed before they stifle economic activity and drive individuals to seek more favorable conditions elsewhere. As the discussion surrounding Mamdani’s proposal continues, it serves as a critical reminder of the complex interplay between taxation, economic growth, and social equity.
With younger voters increasingly engaged in political discussions around tax fairness, the outcomes of such proposals may hold significant implications not only for New York City but also for broader conversations about taxation and social policy in democratic societies worldwide.