UK Economy Grows 0.7% in Q3 2026 as AI-Linked Tech Services Lead the Way

Britain's economy picked up speed in the third quarter of 2026, growing at its fastest quarterly pace in more than two years. The Office for National Statistics said on Thursday 12 November that gross domestic product rose by 0.7% between July and September, up from 0.5% in the second quarter and 0.6% in the first. The figure matched what economists had expected, and it was the strongest calendar-quarter growth since the first three months of 2024.

The surprise was not the headline number. It was what powered it. Growth came almost entirely from services, and within services it was computer programming that did the heavy lifting. The ONS said the businesses reporting the largest increases in turnover were involved in activities related to artificial intelligence and cloud computing, a pattern it has now seen all year.

Services did almost all the work

Services output rose by 0.9% in the quarter, after a 0.6% rise in the previous three months. The ONS said 11 of the 14 services subsectors contributed positively.

The largest contributions came from administrative and support services, information and communication, and professional, scientific and technical activities. Administrative and support services grew by 4.1%, driven by a 6.6% rise in rental and leasing. Information and communication rose by 2.1%.

Production, which covers manufacturing, mining and utilities, edged up by just 0.1%. Construction went the other way, falling by 0.7% in the quarter and extending a slump that has now dragged on for more than a year. The ONS said construction output has fallen by more than 7% since mid-2025.

Grant Fitzner, the ONS chief economist, summed up the quarter in plain terms. "The economy grew robustly in the third quarter almost entirely due to strong and widespread growth in the services sector," he said.

Computer programming grew at its fastest pace in three years

The standout figure in the release was computer programming, consultancy and related activities, which grew by 4.4% in the quarter. That was the fastest growth in the industry for three years, and the ONS said the industry has been the largest driver of GDP growth across 2026 as a whole.

Fitzner pointed directly at the AI link. "Within services, computer programming again increased strongly, as it has all year, registering its fastest growth in the last three years. We continue to see evidence that AI linked businesses helped to boost this sector," he said.

The ONS was careful about how far it would go. It said many of the businesses reporting the largest increases in turnover were involved in AI and cloud computing, but it also said that because of the way its data is collected, it is difficult to quantify the exact impact of those activities on turnover. In other words, the ONS can see the pattern clearly, but it cannot put a precise number on how much of the growth AI itself caused.

That caution matters, because the AI boom has two faces in Britain. On one side, spending on data centres, software and AI services is plainly rising, and the Bank of England and independent economists have each estimated that around a fifth of recent growth has come from investment linked to artificial intelligence. On the other side, some economists warn that the boom could be running ahead of the revenues it will eventually produce. For now, the official numbers say the spending is real and it is showing up in GDP.

The monthly picture: a strong September

The quarterly figure hides a month-by-month story that was less smooth. GDP grew by 0.2% in September alone, better than many economists had expected after a flat August. August was revised down from a 0.1% rise to no growth at all, while July was unrevised at 0.4%.

September's lift meant the quarter finished on a stronger note than it started, which is a better position to carry into the final three months of the year. GDP was 1.9% higher than a year earlier, a figure that puts the recovery in a longer perspective: growth has now been positive in each of the first three quarters of 2026.

The figures are an early estimate, and the ONS warns they remain subject to revision as more detailed information becomes available. Early GDP estimates are revised regularly, sometimes up and sometimes down, so the 0.7% figure should be read as the best available picture rather than the final word.

What it means for the year ahead

The stronger-than-expected run of growth is already changing forecasts. The Bank of England now expects GDP to expand by 1.6% this year, while the Office for Budget Responsibility said at the time of the Budget at the end of October that it expected growth of 1.2% for the year. With three quarters of solid growth already in the books, the OBR figure already looks pessimistic.

The central bank has attributed some of the economy's strength to spending on artificial intelligence, alongside a small, temporary boost from the Budget. That mix matters for what happens next. If growth is being driven by AI investment, it depends on that investment continuing. If it is being driven by the Budget, the boost will fade.

The test now is whether the momentum lasts. The final quarter of the year will show whether September's 0.2% was the start of a steadier run or just a good month. Either way, the third quarter has changed the story of 2026: Britain's economy is growing again, and the fastest-growing part of it is the technology that ministers have bet the country's future on.

Frequently Asked Questions

How much did the UK economy grow in Q3 2026?

GDP rose by 0.7% between July and September 2026, according to the Office for National Statistics. That followed growth of 0.5% in the second quarter and 0.6% in the first, and it was the fastest quarterly growth since the first three months of 2024.

What drove the growth?

Growth came almost entirely from services, which rose by 0.9%. Computer programming, consultancy and related activities grew by 4.4%, the fastest pace in three years, and the ONS said many of the businesses reporting the largest turnover increases were involved in artificial intelligence and cloud computing.

Are the figures final?

No. The figures published on 12 November 2026 are an early estimate and remain subject to revision as the ONS receives more detailed information. Early GDP estimates are regularly revised up or down.