On June 23, 2016, the United Kingdom voted to leave the European Union. 10 years later, the verdict is sobering. Many of the promises made during the Brexit campaign have not materialized. Instead, Britain faces weaker growth, more bureaucracy and a growing debate about rebuilding closer ties with Europe.
A Break That Changed Europe
10 years ago, a narrow majority of British voters backed Brexit. The campaign promised more control, less bureaucracy, more money for the National Health Service and greater economic freedom. Today, much of that sounds like political messaging from another era.
Former European Commission President Jean-Claude Juncker told Tagesschau that the EU had been prepared for Britain’s departure, while London had not. What followed was years of political turmoil, repeated changes in government and difficult negotiations over trade, borders and Northern Ireland.
The Economic Cost
The economic balance sheet is particularly stark. Research suggests that Brexit has significantly reduced Britain’s economic output. A study by the National Bureau of Economic Research estimates that by 2025, UK GDP was 6 to 8 percent lower than it would have been without Brexit. Investment, employment and productivity also developed more weakly.
For many businesses, leaving the EU did not mean liberation. It meant customs paperwork, regulatory barriers, higher costs and persistent uncertainty. Small exporters in particular discovered that access to Britain’s closest and most important market could not easily be replaced by trade deals elsewhere.
Europe as a Lost Anchor
Politically, Brexit is far from over. Younger Britons are far more pro-European than many older voters. According to Tagesschau, more than 80 percent of under-25s would like to see a path back into the EU. Recent polling also suggests that many British voters now want at least a closer relationship with the European Union.
That marks a major shift in the story. In 2016, Brexit was sold as an act of national self-assertion. In 2026, it increasingly looks like a case study in the cost of political isolation in an interconnected world.
A Warning for Europe
For the EU, Brexit is also a lesson. It showed how vulnerable European integration can be to political resentment and disinformation. At the same time, it revealed the high price of leaving. Britain regained formal sovereignty, but lost economic leverage, influence and predictability.
10 years after the referendum, Brexit looks less like a triumph of national freedom and more like an experiment whose costs have become impossible to ignore.
SK
