TL;DR

Deloitte’s third-quarter poll of finance chiefs at large UK companies, published on Wednesday 14 October, finds 52% expecting AI to shrink their own workforce within 12 months, and 48% expecting it to lower operating costs. Yet two-thirds of the same CFOs judge their organisations to be only about a quarter of the distance to the transformation they expect from AI. Read alongside a social housing survey out the same day, which found most staff not using AI regularly, the gap between what boards expect and what has been delivered is the story.

The headline numbers

The survey ran from 17 September to 1 October and drew 66 responses, including 25 finance chiefs from the FTSE 250 and 12 from the FTSE 100. On AI, 37% expect a lift to margins within a year, 48% expect lower operating costs and 52% expect fewer staff. Deloitte UK’s chief executive, Darren Graves, framed the opportunity as rethinking how work gets done rather than automating today’s tasks, and said the winners would combine AI’s speed with “human judgement, experience and trust”.

Those AI expectations sit inside a defensive mood. Cost reduction is now a strong priority for 68% of CFOs, up from 53% in the second quarter, while appetite for new products (27%) and acquisitions (16%) has fallen. CFOs expect inflation of 3.4% in a year and a Bank of England rate of 4.0%, against 3.75% today.

What is holding the UK back

Asked to score constraints on UK competitiveness, CFOs put domestic economic and political uncertainty first at 78 out of 100, ahead of regulation (75) and taxation (67). Energy and labour costs followed. Workforce skills, at 37, ranked below trading ties with Europe. Deloitte’s chief economist, Debapratim De, linked the result to “a decade of leadership turnovers” and constant speculation about tax, with businesses wanting stability and simpler taxes ahead of the Chancellor’s first Budget. Geopolitics remains the top-rated external risk, a position it has held for over three years.

The adoption gap

The headcount figure will draw attention, but the quarter-done finding deserves as much. Inside Housing reported on Wednesday that only 14% of the social housing staff in Housemark’s survey thought more than half their colleagues used AI tools weekly, even though nearly 60% said access had been opened to most staff. Two recent UK surveys show the same shape: Crowe found four in five UK manufacturers using or testing AI, and FRP found Scottish firms gaining speed while 53% said the efficiencies were offset by costs elsewhere. Adoption is ahead of proven value.

Looking forward

In our view, a majority of large-company CFOs expecting AI-driven headcount reductions within a year, while describing adoption as early, is a signal about planning assumptions rather than delivered savings. Whether the Budget eases the uncertainty they rank first will shape how much of that expectation turns into decisions.