A Bold Suggestion
Lord Kinnock has suggested introducing a 2% wealth tax on assets exceeding £10 million. Intriguingly, Downing Street hasn’t dismissed the idea out of hand.
Economic Considerations
Though higher spending is desired by the public, they aren’t keen on funding it through personal taxes. Therefore, the ultra-rich appear to be an appealing target. However, implementing a wealth tax could prove economically harmful and a logistical headache. The Treasury is likely aware of these challenges.
The Burden of Taxation
Taxing wealth, a stock, differs from taxing income, a flow. A seemingly modest 2% wealth tax may impose a hefty burden. For instance, consider £100 in shares yielding a 5% return. A 2% wealth tax here equates to a 40% tax on investment returns. This, on top of corporate and personal taxes, could lead to effective rates surpassing 80%.
Investment Exodus
Such heavy taxation could deter investment in the UK. A wealth tax might accelerate the ongoing exodus of millionaires. With increasingly progressive taxation, the very well-off already shoulder a significant portion of public service funding. The top 0.1% contribute nearly 13% of all income tax.
Administrative Challenges
Implementing a wealth tax presents numerous hurdles. HM Revenue & Customs lacks accurate data on the wealth of the ultra-rich or a reliable method for valuing seldom-traded private assets. These difficulties partly explain why most countries that adopted a wealth tax eventually abolished it. Only four OECD nations continue to levy one.
No Justification for a Wealth Tax
Critics argue wealth isn’t overly taxed, and rising inequality stifles economic growth. However, the UK collects substantial revenue from property, inheritance, and capital taxes. It ranks in the top 10 within the OECD for these tax categories. The share of wealth held by the top 1% has barely increased since 1980, challenging claims of inequality driving economic stagnation.
Broader Economic Issues
Our stagnant economy likely stems from regulatory constraints, demographic shifts, and responses to crises—not wealth distribution.
Table: Taxation in the UK
| Tax Category | UK Rank in OECD |
|---|---|
| Property | Top 10 |
| Inheritance | Top 10 |
| Capital | Top 10 |
A wealth tax might not significantly enhance the government’s fiscal position, especially with the challenges of implementation and behavioural responses. In the longer term, it risks stifling economic growth—a self-imposed detriment affecting everyone.
Tom Clougherty, Executive Director of the Institute of Economic Affairs, a free-market think tank.
