The UK government’s attempt to raise revenue through higher capital gains taxes has backfired, triggering an exodus of high-net-worth individuals and a 10 percent drop in net tax collections. Officials had anticipated increased revenue, but instead, the policy has led to fewer taxable transactions and a shrinking tax base. This is a textbook example of the Laffer curve in action when tax rates rise too high, collections can actually decline.
The capital gains tax hike, implemented in October 2024, raised rates from 10 percent to 18 percent for basic-rate taxpayers and from 20 percent to 24 percent for higher earners. The government also increased the Business Asset Disposal Relief rate from 10 percent to 14 percent, further discouraging investment. These changes were meant to boost revenue, but instead, they have driven wealthy individuals and businesses out of the country.
The consequences extend beyond capital gains tax losses. Many of those leaving the UK are also business owners, meaning the government is losing corporate tax revenue, employee income tax, and VAT collections. Some former employees of these shuttered businesses are now claiming benefits, creating a double negative for public finances. This policy failure highlights the dangers of excessive taxation when the burden becomes too great, people simply take their wealth elsewhere.
London has been hit particularly hard. Reports indicate that 10,800 millionaires left the UK in 2024, making it the second-largest wealth exodus globally, behind only Moscow. The number of billionaires fleeing the country has also surged, with 78 centi-millionaires and 12 billionaires relocating abroad. This mass departure is reshaping the UK’s economic landscape, leaving fewer high-income earners to contribute to tax revenues.
The government now faces a difficult choice. Reversing the tax hikes could help stabilize revenue, but doing so would be an admission of failure. Officials have yet to acknowledge the unintended consequences, though pressure is mounting from business leaders and economists. The coming months will determine whether policymakers adjust course or continue down a path that is driving wealth out of the country.
https://moneyweek.com/personal-finance/tax/where-rich-relocate-to
https://www.ocorian.com/insights/uk-autumn-budget-implications-high-net-worth-individuals