A Decade After Brexit: How the UK Economy and Politics Have Been Reshaped, in Charts

It has been a tumultuous decade since the United Kingdom voted to leave the European Union on June 23, 2016. The referendum, which saw 52% of the electorate vote to leave against 48% who wished to remain, sent immediate shockwaves through global markets, causing the pound to plummet and then-Prime Minister David Cameron to resign.

The Brexit campaign was built on promises of 'taking back control' of immigration, funneling more funds into the country's revered health service, and forging new, prosperous trade deals worldwide. However, ten years on, the reality painted by economic and political charts tells a more complex story.

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Brexit Revisited: 10 years since the referendum

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A Stunted Economic Horizon

The anticipated post-Brexit economic boom largely failed to materialize. While global events like the COVID-19 pandemic and Russia's invasion of Ukraine undoubtedly impacted growth, economists like Stanford professor Nicholas Bloom estimate Brexit alone may have reduced the UK's GDP by 6-8% by 2025. This downturn is attributed to heightened uncertainty, reduced demand, misallocated resources, and a prolonged, complex Brexit process.

Shifting Sands of Immigration

The promise to 'take back control' of migration has certainly altered the UK's demographic landscape. While net migration from EU countries has turned negative since 2022 due to reduced opportunities for EU citizens, migration from non-EU states has surged. This rise is a response to work supply shortages, an increase in international students, and emergency visa schemes, such as those extended to Ukrainian refugees.

Sterling's Persistent Weakness

The British pound serves as a stark barometer of Brexit's economic fallout. Immediately following the 2016 vote, sterling crashed and has largely failed to recover its pre-referendum strength against both the euro and the dollar. Analysis by Convera indicates that the pound has consistently traded approximately 10% below its June 2016 value. This devaluation has made foreign goods and assets more expensive for UK consumers, directly impacting the cost of living in a nation heavily reliant on imports.

FTSE Divergence: Global vs. Domestic Fortunes

The performance gap between the FTSE 100 (comprising large-cap, multinational companies) and the more domestically focused FTSE 250 highlights a muted outlook for London's capital markets. The FTSE 100 has significantly outperformed the FTSE 250, benefiting from its global revenue exposure and a weaker sterling that boosts overseas earnings when converted back. As Chris Smith of Jupiter notes, sterling weakness, FX-led inflation, and a higher cost of capital have created a challenging environment for UK-centric businesses. Neither index has kept pace with the substantial gains seen in the dynamic U.S. equity markets.

Evolving UK-EU Trade Landscape

Despite the separation, the EU remains the UK's primary trading partner, accounting for over €800 billion in imports and exports. In 2025, the EU represented 41% of UK exports and 50% of UK imports. A new trade deal, signed on January 1, 2021, has prevented the imposition of tariffs or quotas, yet the logistical and regulatory complexities have undoubtedly impacted trade flows.

A Whirlwind of Political Leadership

Perhaps one of the most visible impacts of Brexit has been the unprecedented political instability. Since David Cameron's resignation in 2016, no prime minister has held office for more than three years, with one tenure lasting a mere 49 days. The recent resignation of Prime Minister Keir Starmer amid a leadership challenge further underscores this volatility, making him the seventh prime minister in a decade.

— Additional reporting by Bryn Bache contributed to this article.