- AI activity contributed 0.45 percentage points to growth, about a quarter of expansion.
- Oxford Economics estimates AI’s 2026 UK growth impact lower, at 0.2 percentage points.
- A slowdown in AI investment could weaken UK growth and increase recession risks.
AI is turning into a massive engine for business growth, pulling in billions of dollars for data centers and powerful computer hardware.
According to fresh estimates from Bloomberg Economics, this tech boom is carrying an unusually heavy load in keeping the UK economy moving forward. If investment in AI begins to cool down or tech stock prices drop sharply, the resulting economic ripple effects could impact far more than just tech firms.
Bloomberg Economics assesses that AI-related activity added about 0.45 percentage points to UK economic growth in 2026. With overall growth estimated at around 1.8%, that’s roughly a quarter of the expansion.
The figure covers work tied to developing AI models and building the infrastructure to support them.
However, economists don’t measure AI’s contribution the same way. Oxford Economics puts it lower, at approximately 0.2 percentage points in 2026. That gap shows how hard it is to separate the AI-related activity from everyday corporate tech investments.
Additionally, the Bank of England (BoE) added more clarity to the picture in its November Monetary Policy report.
Its researchers evaluated that brand-new AI efforts accounted for slightly under 20% of all UK economic growth since the start of 2026, even after stripping out standard tech industry spending.
Notably, the bank pointed out that most of this economic boost is coming from building and setting up AI systems, rather than tangible efficiency gains in everyday businesses across the rest of the economy.
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What Happens If the AI Bubble Bursts?
The biggest worry is that companies might stop spending money before promised productivity gains from AI show up.
If firms cut back on their budgets for data centers, computer chips, and AI infrastructure because the profits don’t match the hype, it could trigger a wider slowdown in construction projects and general corporate investment.
Such a pullback might take a direct toll on the UK’s overall economy, especially since spending on AI has become a key driver of progress. While the UK economy has other drivers, Oxford Economics analyst Adam Slater warned that if the AI boom loses steam, it may sharply increase the chances of the UK sliding into a recession.
The Bank of England says businesses credit about 0.5% of their productivity gains over the past three years to AI.
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