A decade after the UK’s departure from the European Union, the economic consequences of Brexit are becoming more sharply defined. While early forecasts predicted significant GDP losses, the picture now emerging is more nuanced, with both costs and benefits crystallising. The Office for Budget Responsibility estimates that long-run GDP will be 4% lower than had the UK remained in the EU, reflecting higher trade barriers and reduced migration. However, these headline figures obscure important gains in trade diversification and regulatory autonomy.
Since leaving the EU, the UK has signed trade agreements with 73 countries plus the bloc itself, covering trade worth over £1 trillion. Deals with Australia and New Zealand, while modest in immediate value, signal a pivot toward faster-growing regions. The UK’s services sector, particularly financial services and legal consultancy, has maintained its global share, partly due to the government’s ‘equivalence’ regimes and bilateral memoranda. London remains Europe’s leading financial centre, though Amsterdam has gained some clearing activity.
On the regulatory front, the UK has diverged from EU rules in areas such as data protection, gene editing, and financial services. The ‘Edinburgh Reforms’ have streamlined capital requirements for insurers, while the Genetic Technology Act has authorised precision breeding of crops. These moves are intended to foster innovation, though they come at the cost of reduced market access for some goods, particularly agricultural exports to the EU.
Trade in goods has been the most affected area. UK exports to the EU have fallen by roughly 20% relative to a no-Brexit counterfactual, according to the Centre for Economic Performance. Non-EU trade has risen by about 8%, but this has not fully compensated. New customs checks and paperwork have hit small firms especially hard, with many giving up on EU exports entirely. The UK’s share of global exports has stabilised after a drop, but has not recovered to pre-referendum levels.
Foreign direct investment flows have held up better than expected, with the UK attracting the third-highest level of FDI in the world after China and the US. The UK’s legal system, language, and time zone remain strong draws. But labour shortages in sectors like hospitality and agriculture have been acute, partly due to the end of free movement. A new points-based immigration system has favoured skilled workers, but net migration is now higher than before Brexit, driven by non-EU arrivals.
Politically, sovereignty has been the central prize. The UK is no longer bound by European Court of Justice rulings and has negotiated its own trade deals, including a comprehensive agreement with India currently under discussion. The ability to set its own tariffs and quotas has allowed the UK to lower levies on goods like oranges and tractors, reducing consumer prices in some limited areas. However, the divergence in standards has also created frictions: UK businesses exporting to the EU must now comply with two sets of rules, raising costs.
Ten years on, the Brexit debate has moved from prediction to evidence. The costs are real but concentrated: a permanent reduction in trade intensity with the UK’s largest partner, and a drag on GDP. The benefits are narrower: greater flexibility in policy and new trade relationships that may yield longer-term gains. For the public, the issue has faded from the front pages, replaced by concerns over inflation, health, and housing. But for businesses and policymakers, the daily reality of navigating a new trading relationship remains a complex and unfinished project.
