An influential coalition of leaders from Britain’s professional services sector has warned Rachel Reeves that a Budget tax raid on the sector would “stunt growth” in the UK’s faltering economy.

Sky News has obtained a letter sent to the chancellor on Thursday, which was signed by leading figures including the president of The Law Society, the chief executive of the Institute of Chartered Accountants in England and Wales, and the bosses of other leading trade bodies including TheCityUK and the BVCA.

In it, they warn that reported plans to impose employers’ national insurance on limited liability partnerships (LLPs) would damage Britain.

“Such a move would strike at the heart of a sector that is not only growing but actively partnering with government to deliver economic growth,” they wrote.

“Our professional services sector sits among the UK’s global success stories – driving investment, creating jobs, and reinforcing the UK’s reputation as an attractive place to do business.

“Introducing higher taxes on LLPs now would be a misstep and will stunt growth.

“It would undermine the government’s stated ambition to support professional services as a growth partner and send a damaging signal to international investors.

“At a time when firms are already facing potential major regulatory changes – from anti-money laundering compliance to evolving tax adviser rules – this additional burden risks creating a perfect storm that stifles investment, hiring, and innovation.”

The letter warned that the mooted tax changes would force firms to reconsider their corporate structures, “triggering instability and uncertainty across our economy”.

“Meanwhile, our global competitors – many of whom are actively courting professional services firms – would seize the opportunity to attract talent and capital away from the UK,” it added.

Read more from Sky News:
Octopus COPs £500m financing boost for electric vehicles arm
Wealth managers WH Ireland and Team in all-share merger talks

The letter was also signed by the City of London Law Society and The City of London Corporation.

It has been sent to the chancellor less than two weeks before she delivers her Budget, and adds to the multitude of warnings from across the economy about the levers she intends to pull to plug an estimated £30bn fiscal black hole.

Last week, the Financial Times reported that a potential tax raid on LLPs was likely to be less severe than feared following warnings from senior sector figures.

The Treasury has declined to comment on the prospective move.

The UK’s economic slowdown gathered further momentum during the third quarter of the year with growth of just 0.1%, according to an early official estimate that makes horrific reading for the chancellor.

The Office for National Statistics (ONS) reported a surprise contraction for economic output during September of -0.1% – with some of the downwards pressure being applied by the cyber attack disruption to production at Jaguar Land Rover.

The figures for July-September followed on the back of a 0.3% growth performance over the previous three months and the 0.7% expansion achieved between January and March.

Money latest: The £110 benefit 1.1 million older Britons don’t claim

The encouraging start to 2025 was soon followed by the worst of Donald Trump’s trade war salvoes and the implementation of budget measures that placed employers on the hook for £25bn of extra taxes.

Economists have blamed those factors since for pushing up inflation and harming investment and employment.

ONS director of economic statistics, Liz McKeown, said: “Growth slowed further in the third quarter of the year with both services and construction weaker than in the previous period. There was also a further contraction in production.

“Across the quarter as a whole manufacturing drove the weakness in production. There was a particularly marked fall in car production in September, reflecting the impact of a cyber incident, as well as a decline in the often-erratic pharmaceutical industry.

“Services were the main contributor to growth in the latest quarter, with business rental and leasing, live events and retail performing well, partially offset by falls in R&D [research and development] and hair and beauty salons.”

The weaker than expected figures will add fuel to expectations that the Bank of England can cut interest rates at its December meeting after November’s hold.

The vast majority of financial market participants now expect a reduction to 3.75% from 4% on 18 December.

Data earlier this week showed the UK’s unemployment rate at 5% – up from 4.1% when Labour came to power with a number one priority of growing the economy.

Since then, the government’s handling of the economy has centred on its stewardship of the public finances.

The chancellor was accused by business groups of harming private sector investment and employment through hikes to minimum wage levels and employer national insurance contributions.

The Bank has backed the assertion that hiring and staff retention has been hit as a result of those extra costs.

There is also evidence that rising employment costs have been passed on to consumers and contributed to the UK’s stubbornly high rate of inflation – a figure that is now expected to ease considerably in the coming months.

Rachel Reeves has blamed other factors – such as Brexit and the US trade war – for weighing on the economy and leaving her facing a similar black hole to the one she says she inherited from the Conservatives.

Her second budget is due on 26 November.

Read more:
Chancellor’s own goals have exacerbated budget challenges
Starmer hints two-child benefit cap to be axed in budget
Will Reeves repeat Denis Healey’s 1975 horror budget?

She said of the latest economic data: “We had the fastest-growing economy in the G7 in the first half of the year, but there’s more to do to build an economy that works for working people.

“At my budget later this month, I will take the fair decisions to build a strong economy that helps us to continue to cut waiting lists, cut the national debt and cut the cost of living.”

Shadow chancellor Sir Mel Stride responded: “Today’s ONS figures show the economy shrank in the latest month, under a Prime Minister and Chancellor who are in office but not in power.”

The British Medical Association (BMA) has defended a new round of resident doctor walkouts starting on Friday, insisting medics’ pay is still “way down” compared with 2008 and that the government has failed to finish “a journey” towards restoring it.

BMA chair Dr Tom Dolphin told Sky News the dispute remains rooted in years of pay erosion that have left resident doctors far behind other public sector workers.

“When we started the dispute, […] the lowest level of the resident doctors were being paid £14 an hour,” he said.

“There were some pay rises over the last couple of years that brought that partly back to the value it should be at, but not all the way.

“The secretary of state (Wes Streeting) himself called it a journey, implying there were further steps to come, but we haven’t seen that.”

When asked if the row ultimately “comes down to money”, he replied: “In the sense that the secretary of state doesn’t want to or isn’t able to fund the pay increases to match the value that we had in 2008.”

Dr Dolphin argued that while “the general worker in the economy as a whole” has seen pay catch up since the 2008 financial crash, “doctors are still way down”.

The government points out that its 29% settlement last year was one of the largest in the public sector and was intended to draw a line under two years of walkouts.

But Dr Dolphin said the deal still fell short: “The gap was biggest for doctors and needed the biggest amount of restoration, and that’s what we got.”

He defended the BMA’s use of the Retail Price Index (RPI), a metric rejected by the Office for National Statistics, saying it “better reflects the costs people face”.

Should resident doctors get a pay rise? Have your say in the poll at the bottom of this story.

‘Who do you think is treating the patients?’

With Chancellor Rachel Reeves preparing her budget amid warnings of deep cuts, Dr Dolphin said the BMA is not demanding an immediate cash injection.

“We’re quite happy for that money to be deferred with some kind of multi-year pay deal so that we can end the dispute and avoid having further industrial action about pay for several years to come,” he said.

“Money spent in the NHS is returned to the economy. For every pound you spend, you get several pounds back.”

When pressed on whether the £1.7bn cost of previous strike action could have been better spent on treatment and technology for NHS cancer patients, he hit back: “Who do you think is treating the cancer patients? It’s the doctors.”

Read more on Sky News:
Thousands of NHS redundancies
Sentence and fine over patient death

Strikes will cause disruption, union boss admits

Dr Dolphin rejected suggestions that the dispute could destabilise the government, calling the idea “implausible”.

He admitted prolonged strikes have tested public patience, but said the government had left doctors with no choice.

“A prolonged industrial dispute makes people annoyed with both sides,” he said. “It is vexing to us that we are still in this dispute.”

“I don’t want patients to suffer,” he added. “I accept that the strikes cause disruption… of course that’s upsetting for them. I completely get that. And I’m sorry that it’s happening.”