A Global Minimum Wealth Tax: Some Issues of Economics and Implementation

Robin Boadway and Michael Keen

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Abstract: Noting that many ultra-high net worth (UHNW) individuals pay very low effective rates of personal tax on their incomes, Zucman (2024, 2025) proposes a minimum wealth tax which ensures that UHNWs incur personal taxes of at least 2% of their worldwide wealth. This note discusses some anomalies of his hybrid income-and-wealth tax scheme, recounts some complexities in implementing and propagating it on a worldwide basis, given that individual wealth includes assets in many countries, and argues that there are other and no less appealing paths to much the same end, including taxing capital gains on accrual and enhancing inheritance taxation.

Keywords: High net worth individuas; International tax coordination; Wealth taxation (search for similar items in EconPapers)
Date: 2026-01-01
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Published in Intertax (Includes EC Tax Review), 2026, 54 (1), pp.49-54. ⟨10.54648/taxi2026008⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-05563449

DOI: 10.54648/taxi2026008

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