Britain marks 10 years since Brexit vote as economic impact remains contested

Ten years after the historic 2016 referendum, the economic legacy of Brexit remains highly contested. While services exports have flourished, goods trade with the EU has declined significantly, highlighted by a 30% drop in Channel Tunnel truck traffic. Multiple economic models, including analyses from the Bank of England and the NBER, estimate a 6% to 8% hit to the UK economy, largely driven by a persistent 12% to 13% shortfall in business investment. Proponents, however, point to regulatory freedoms in gene editing and fintech as key sovereign achievements.

UK-EU trade decline post-Brexit

• ▪United Kingdom exports to the European Union in 2025 were 14 percent lower than in 2019, while imports from the European Union fell by 10 percent
• ▪HM Revenue and Customs trade data analyzed by the London School of Economics indicates that 16,400 British firms, representing 14 percent of European Union exporters, stopped exporting to the European Union between 2019 and 2023
• ▪The number of truck journeys through the Channel Tunnel fell from 1.64 million in 2016 to 1.16 million in 2025, representing a decline of nearly 30 percent
• ▪The Centre for European Reform calculated that British goods exports to the European Union fell by 16 percent and imports fell by 14 percent compared to a scenario where the United Kingdom remained in the European Union

Business investment shortfall

• ▪Former Bank of England independent economist Jonathan Haskel calculated that lower business investment since 2016 resulted in a 13 percent shortfall against the pre-referendum trend, reducing the United Kingdom economy by £29 billion or 1.3 percent
• ▪Studies by the National Institute of Economic and Social Research and the National Bureau of Economic Research found that United Kingdom business investment fell 12 to 13 percent compared to a representative basket of advanced economies

Brexit economic impact estimates

• ▪A study by the National Bureau of Economic Research estimated that the United Kingdom lost 6 to 8 percent of per capita output due to Brexit
• ▪A Bank of England firm-level survey analysis published in 2026 concluded that prolonged Brexit uncertainty reduced the United Kingdom's gross domestic product by approximately 6 percent

Post-Brexit trade deals

• ▪The United Kingdom government calculates that the independent trade deals signed after Brexit will only slightly boost economic growth by fractions of a percentage point over decades
• ▪The European Union signed the Mercosur deal giving its car exporters zero-tariff access to Brazil, whereas United Kingdom car exporters face a 35 percent tariff

Services sector export growth

• ▪United Kingdom services sector exports to the European Union increased by 57 percent over the decade leading up to 2026, while non-European Union services exports grew by 49 percent