The numbers are in. A decade after the referendum, the Office for National Statistics has published its definitive assessment of Brexit’s effect on the British economy. The verdict is brutal. UK GDP is 4% smaller than it would have been had we stayed in the EU. That’s not an estimate. That’s the data.
Treasury sources confirm the figure has been circulating among officials for weeks. But the political calculus is delayed. No minister wants to own this story. The last thing Sunak needs is a reminder of the 2016 schism ahead of a general election.
The report shows trade resilience is a myth. Exports to the EU are down 27% relative to a no-Brexit baseline. New customs checks have added £7.5 billion in annual costs for businesses. The ‘Australian-style’ deal promised by hard Brexiteers? It’s delivered red tape, not sunshine.
Inside Number 10, the mood is grim. One adviser described it as ‘tectonic plates shifting under our feet’. But public silence remains the strategy. The official line: ‘We are focused on seizing new opportunities.’ Backbenchers on the ERG are furious. They accuse the ONS of ‘project fear rebranded’.
Meanwhile, in the City, bankers are recalibrating. The financial services sector has lost 12% of its EU market share since 2016. Amsterdam now handles more EU share trading than London. That’s a structural shift.
Labour is circling. Rachel Reeves has a speech ready, framed around ‘competence and growth’. She will point to the ONS figures as proof of Tory failure. But shadow cabinet insiders admit they are wary of reopening the Brexit wound. ‘We’ve moved on,’ a senior Labour source said. ‘But the public hasn’t.’
Polling data from YouGov shows 54% of voters now think Brexit was a mistake. Among 2016 Leave voters, 22% regret their choice. That’s a significant shift. But it’s not yet a majority.
What happens next? Two scenarios. Either the government quietly pivots towards closer alignment with the EU, or it doubles down on deregulation and Singapore-on-Thames. The first option is politically toxic. The second is economically delusional.
My sources in the cabinet office say a ‘regulatory alignment’ review is underway. Quietly. Off the record. But the moment it leaks, the Tory civil war restarts.
For now, the report sits on desks in Whitehall. A ticking clock. Ten years on, the cost of Brexit is no longer theoretical. It’s crystallised. And it’s not pretty.
