The UK economy grew by 0.1% in the third quarter of the year, down from 0.5% in the second quarter, according to figures from the Office for National Statistics.
In a first estimate of activity in the three months to the end of September – the first quarter under a Labour government – services and manufacturing sector output slowed, indicating that uncertainty surrounding the budget and high interest rates were behind a loss of momentum since the spring.
City economists had expected quarter-on-quarter growth to be 0.2%. Month-on-month GDP shrank by 0.1% in September, falling short of forecasts for growth of 0.2%.
The ONS said a fall in manufacturing output and a lack of work in the IT sector dragged on the economy in September, offsetting a rise in car sales.
The chancellor, Rachel Reeves, said: “Improving economic growth is at the heart of everything I am seeking to achieve, which is why I am not satisfied with these numbers.”
Critics of the government are likely to focus on a steep rise in employer national insurance contributions from next April that was announced in last month’s budget, which business groups have complained adds to their costs and deters investment.
Reeves added: “At my budget, I took the difficult choices to fix the foundations and stabilise our public finances. Now we are going to deliver growth through investment and reform to create more jobs and more money in people’s pockets, get the NHS back on its feet, rebuild Britain and secure our borders in a decade of national renewal.”
Ben Jones, the lead economist at the CBI business lobby group, said: “The UK economy stalled over the third quarter. Uncertainty ahead of the budget probably played a big part, with firms widely reporting a slowdown in decision making.
“Hopefully this will prove to be a blip. We still expect the economy to return to a path of modest growth in the year ahead. But downside risks to the outlook have increased.”
Recent surveys of the economy have shown the labour market weakening and consumer and business confidence had fallen before the budget.
Luke Bartholomew, the deputy chief economist at the investment manager abrdn, said while an easing in growth in the second was expected in the second half of the year, “the extent of the slowdown is a bit more pronounced than expected”.
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“With activity growth in September being reported as particularly weak, it is plausible that some of slowing is the result of elevated uncertainty at that time, as firms and households speculated about possible tax changes ahead of the budget.”
The Bank of England has cut interest rates twice this year, most recently last week, taking them to 4.75%. However, borrowing costs remain high compared with pre-Covid pandemic levels.
Bartholomew added that the September contraction could be a blip. He said: “The contents of the budget ended up somewhat boosting the growth and inflation picture for 2025, and so in that context these data will probably do little to change the thinking at the Bank of England. We continue to expect further gradual easing, with the next rate cut coming early next year.”
