Business19 June 2026

Brexit cost 6% of UK economy, Bank of England data suggests

The UK economy has taken a 6% hit from the effects of Brexit, according to economists' analysis of internal Bank of England data about the decisions, views and financial results of thousands of British companies since the referendum a decade ago.
Examining data that the Bank uses to decide on interest rates, the study analysed lost growth by trying to reconstruct how the UK would have grown if it had not voted to leave the EU.
It found that about half the economic hit came from the sheer surprise and uncertainty of the post-referendum period while the rest was from rising trade barriers after the UK left the customs union and single market in 2021.
But some critics say the study does not fully account for the outperformance of the US investment and tech industries or the European energy shock four years ago.
Co-author of the study, British professor Nick Bloom from Stanford University, said the UK was growing fast in the years before Brexit and could have at least partially kept up with the US without the disruption. He argued the Bank of England company data offered important corroboration.
His paper concludes: "In the case of Brexit, there was a substantial economic impact on the United Kingdom, but it arose gradually over the subsequent decade".
It comes as the Bank's top officials have in recent months become increasingly candid in explaining the economic consequences of Brexit in speeches and interviews.
Recently, the Bank's governor Andrew Bailey told journalists that as a consequence of Brexit: "I think the level of activity and growth in the economy has been lower.”

-BBC

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