Brexit decade leaves UK seeking reset with EU as costs mount
Brexit’s costs are now showing up in trade, investment and politics, pushing Starmer toward a reset with the EU.
Britain’s Brexit decade has become a lesson in how quickly “settled” politics can unravel. The 2016 referendum split the country 52% to 48%, with England and Wales backing Leave and Scotland and Northern Ireland voting Remain. That geography still matters because it exposed a deeper fracture: the old assumptions that party loyalty, economic gravity and Britain’s global role would hold steady after Brexit have not held.
The referendum result still frames the argument
The vote on 23 June 2016 did more than choose a policy. It forced the United Kingdom into a new constitutional and economic reality that has been hard to translate into everyday life. The country left the European Union at the end of January 2020, but the political debate never really left behind the question of what Brexit was supposed to deliver.
That is why the first UK-EU summit since Brexit, held in London on 19 May 2025, mattered so much. Keir Starmer hosted Ursula von der Leyen and António Costa at a meeting that produced a joint statement and a new security and defence partnership, along with a renewed agenda for cooperation. For Starmer, it was a practical attempt to govern the space left behind when the Brexit slogans faded and the day-to-day costs remained.
Starmer’s reset is an answer to a vacuum, not a clean break
Starmer has used the summit to signal a “reset” in relations with Brussels, but the politics around it show how unstable the post-Brexit consensus remains. Critics seized on one of the most sensitive parts of the deal: the extension of EU fishing access in British waters until 2038. That single concession captures the political trade-off at the heart of the reset. It buys smoother cooperation with Europe, but it also reopens one of the Brexit arguments that many voters thought had been settled.
The summit also showed the limits of symbolic sovereignty. A security and defence partnership is a real policy gain, especially at a time when Europe’s strategic environment is more volatile. Yet it also sits alongside a much less dramatic truth: Britain still needs workable relations with its nearest and largest trading partner, even after years of rhetoric about control and independence.
The economic bill is now too large to ignore
The most concrete case for a reset comes from trade and output. Official UK statistics show that the European Union still accounted for 51% of UK imports in 2024. That means the EU remains central to the goods that move into British businesses, shops and homes, no matter how much the political language has shifted since the referendum.
Recent Office for National Statistics data made the strain more visible. In the three months to April 2025, the UK’s total goods and services trade deficit widened to £11.5 billion. That figure does not explain every Brexit effect on its own, but it underscores the broader point: the promise that leaving the EU would make the economy more flexible has not translated into obvious resilience.
The longer-run estimates are starker still. A 2025 NBER paper concluded that Brexit had reduced UK GDP by 6% to 8% by that year. It also estimated investment was down 12% to 18%, employment down 3% to 4%, and productivity down 3% to 4%. Those are not abstract losses. They show up in weaker business confidence, fewer expansion plans, lower wage growth potential and a tighter fiscal backdrop for governments trying to fund public services.
People’s views have changed, but the pressure has not gone away
Public opinion has not swung neatly back to the pre-referendum era. It has become more ambivalent, more transactional and more tied to material concerns. A 2023 Oxford Migration Observatory briefing found that 52% of respondents wanted immigration numbers reduced, and said concern had risen for the first time since before the Brexit referendum.
That matters because immigration remains one of the clearest ways Brexit politics now touches daily life. Communities that feel strain in housing, schools, transport and local health services often hear immigration discussed as a shorthand for pressure on public services, even when the underlying drivers are broader and include funding, planning and labor shortages. The result is a political field in which the language of control still resonates, but the economic and social costs of rigid positions are harder to ignore.
Best for Britain’s 2025 Brexit report, based on a YouGov survey of 4,368 adults, showed that Brexit is still politically live even when it is no longer the main subject of daily headlines. That is a useful clue to how the post-Brexit debate now works. Voters may not be thinking constantly about the EU, but they are living with the consequences in prices, trade, investment and the capacity of the state to deliver.
Starmer is governing Britain’s post-Brexit identity crisis
This is where Starmer’s leadership becomes more than a diplomatic adjustment. He is trying to govern a country where the old certainties have collapsed at once: party loyalty is less reliable, economic assumptions about Brexit gains have weakened, and Britain’s global posture has not become simpler or stronger. The challenge is not just to repair relations with Europe. It is to explain to voters why pragmatic cooperation now serves national interest better than symbolic confrontation.
That task has grown harder in May 2026, as Starmer faced a leadership challenge after poor local election results. Reports said he had left open the possibility of ditching his Brexit red lines at the next general election, a sign that Brexit is still shaping the boundaries of political possibility. Even when leaders try to move on, the afterlife of the referendum keeps pulling British politics back toward the same unresolved question: how much sovereignty is worth if the price is weaker growth, harder trade and a more brittle state.
The reset with the EU is therefore not just a diplomatic tidy-up. It is an admission that the country needs workable rules after a decade of disruption. Britain is still deciding what Brexit was for, but the costs are now visible enough that refusing to adapt has become its own political risk.
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