Brexit, ten years on: what Britain gained and what it lost

🇬🇧 How to read the Brexit figures ✕

Nobody has measured what Brexit cost. Everybody has estimated it

There is only one Britain, and it left. Every figure on the tile that says "Brexit cost X per cent of GDP" is a comparison between the Britain we have and a Britain that stayed in — and that second Britain has to be invented. The main way of inventing it is to build a "doppelgänger" out of other countries whose economies tracked Britain's closely before 2016 and see where the blend went afterwards. The Centre for European Reform did that in 2022 and got 5.5%. A team using the Bank of England's own survey of company finance directors got 6–8% by the end of 2025. The Office for Budget Responsibility does something different: it assumed in 2016 that trade would end up 15% lower and productivity 4% lower in the long run, and ten years on it has not changed either assumption. The tile prints the range, names each author, and prints the sceptics too. It does not pick one. What the reader should notice is that the serious estimates all have the same sign.

Why "the economy grew about as fast as the EU's" and "Britain fell behind" are both true

Between 2016 and 2024 the UK economy grew 10.2% and the EU's 12.9% — close. But the UK's output per person grew 4.4% against the EU's 11.5%, because Britain's population grew much faster than most of Europe's, mostly through non-EU migration. A country can add people and output at the same time and leave each person no better off. That per-head figure is the one that decides whether living standards rose, and it is the sharpest number on the tile. It is also why the Germans, whose per-head figure is worse than ours, are not a comfort: their problem is a different one, and a sceptic is right to say so.

What "universal" means, and what it does not

Two enormous things happened to every rich country in these ten years: the pandemic in 2020 and the energy shock in 2022. Every economy in the chart fell in 2020 and every European one had double-digit inflation in 2022. So a fall in British output in 2020, or a bad year for prices in 2022, proves nothing about Brexit by itself. The way to tell Brexit apart is to look for things that happened to Britain and not to its neighbours in the same storm: goods exports that fell while services exports rose, food prices that rose faster only for the foods that face EU border checks, sixteen thousand small firms that stopped selling to Europe, a migration boom made of care workers and students rather than European builders. The tile lists those separately from the global shocks, and that separation is the whole answer to "was Britain alone".

The £350 million a week, and the real number

The figure on the bus was the gross contribution before the rebate that was never sent and before the money that came back to British farms, regions and universities. The UK Statistics Authority called it "a clear misuse of official statistics" in 2017. The Treasury's own table puts the net contribution at £9.6 billion in 2016, about £185 million a week. That money is genuinely no longer sent — but the farms, regions and universities still had to be paid for from Westminster, and the tile prints what replaced each.

The migration figures changed underneath everyone

The ONS stopped counting migrants with a survey of passengers at ports in 2020 and now uses tax, visa and benefit records instead. The 2016 figures are on the old basis and the 2025 figures on the new one; they are not strictly comparable, and the new series keeps being revised — net migration for 2024 was first published as 431,000, then 345,000, then 331,000. The tile uses the ONS's current figure in every case and says which basis it is on. Treat a change of 50,000 either way as noise.

Fish: more money landed, in pounds that are worth less

UK boats landed £936 million of fish in 2016 and £1.16 billion in 2024. Prices in general rose about 30% over the same period, so in real terms the catch is worth about the same as it was — the record is a cash record. Meanwhile the fleet is 15% smaller and there are fewer fishermen. The quota the UK won on paper is real; the industry has not had the boats or the markets to use all of it, and in May 2025 the government traded the leverage it was about to gain — annual talks on EU access from July 2026 — for twelve more years of access, in return for a food-checks deal that is still not signed.

The European Court of Human Rights is not an EU court

The most common confusion in the whole subject. The Strasbourg court belongs to the Council of Europe, a separate body with 46 members that Britain helped found in 1949. Brexit ended the jurisdiction of the EU's court in Luxembourg over Great Britain (it continues for Northern Ireland under the Windsor Framework). It did nothing at all to the Human Rights court, and the UK–EU trade deal in fact commits Britain to staying in it.

What was left out on purpose

Any figure we could not trace to a primary source: the "£47 billion" and similar headline totals that circulate; a 2016-versus-2026 count of Britons living in the EU (no reliable series exists — Germany is missing from the UN data); the numbers of Britons taking EU citizenship in 2024 and 2025 (Eurostat has not broken them out); and the outcome of the second UK–EU summit in July 2026 beyond what the two sides' joint statement says. Where a claim is disputed the tile prints both sides and says who said what.

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