A new economic study has presented a proposal to the UK government for a targeted wealth tax aimed at the nation’s wealthiest households. Academics Gabriel Zucman of the Paris School of Economics and Ben Tippet of King’s College London suggest that a 2% minimum charge on households with net wealth exceeding £100 million could secure approximately £10 billion in annual revenue for the public purse.
Scope and Implementation
The proposal is designed to be highly selective, impacting fewer than 1,000 of the UK’s richest households. According to the authors, the measure would require HM Revenue & Customs (HMRC) to aggregate the total accumulated assets of these families, encompassing private business interests, land, property, art, pension wealth, and charitable assets under their control.
Addressing common concerns regarding capital flight, the report suggests an enforcement mechanism that would require individuals to remain liable for the tax for at least 10 years following their departure from the United Kingdom. This provision is intended to prevent taxpayers from relocating abroad specifically to circumvent the levy.
Academic Arguments for Reform
Proponents of the plan argue that current tax structures often allow ultra-high-net-worth individuals to minimize their effective tax rates through complex vehicles such as holding companies, trusts, and inter-family transfers. Zucman, who has been influential in global wealth-tax discussions, noted that the small population of affected households would allow for a relatively swift implementation.
“The report shows that a well-designed minimum tax on the very wealthiest households is a realistic, targeted reform that would make the UK’s tax system fairer while raising substantial revenues,” said Ben Tippet. The authors distinguish their proposal from historical European wealth taxes, which they argue were often undermined by low thresholds and broad exemptions that created extensive opportunities for tax avoidance.
The Policy Context
The proposal comes as Prime Minister Andy Burnham prepares to outline his administration’s fiscal and economic agenda. While Burnham has expressed a general commitment to ensuring tax fairness, his office has not explicitly committed to a wealth tax. Earlier discussions from his advisors have focused on alternative revenue-raising measures, including potential adjustments to the threshold of capital gains tax to bring it in line with income tax rates.
Globally, the conversation surrounding wealth taxation has gained momentum. Recent international discussions, including those among G20 nations, have explored the potential for a minimum 2% tax on the world’s estimated 3,000 billionaires to address rising wealth inequality. As the UK government balances public spending requirements with economic stability, the debate over how to broaden the tax base without stifling investment or creating societal division remains a central theme in domestic policy discussions.


