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[BUSINESS] · United Kingdom · 3 sources

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UK fiscal headroom falls to £11bn amid Middle East risk

UK fiscal headroom EY economic outlook Strait of Hormuz Middle East conflict energy supply disruption

The United Kingdom’s fiscal headroom has decreased to £11.3bn, down from £23.6bn in March, according to the EY UK Pre-Budget Fiscal Outlook. This margin represents approximately 1% of total tax receipts, leaving little room for error in public finances.

EY warns that geopolitical instability in the Middle East poses a significant risk. If conflict leads to a sustained blockade of the Strait of Hormuz, the UK’s fiscal buffer could be wiped out. In an adverse scenario where the Strait remains closed until mid-2027 and inflation reaches 6% by the end of 2026, the current surplus could transform into a £7bn deficit due to weaker growth, rising unemployment, and increased borrowing costs.

The baseline forecast assumes the Strait of Hormuz reopens by the end of the third quarter of 2026, though with reduced tanker traffic. EY Chief Economist Peter Arnold noted that the erosion of headroom over the last six months underscores how external economic factors, rather than domestic policy, are heavily shaping the nation's fiscal position.

Entities

EY · John Healey · Peter Arnold · Strait of Hormuz · United Kingdom

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Sources

Chancellor’s £11bn fiscal headroom at risk from Iran conflict [thefinancialanalyst.net]
Lancashire Times [lancashiretimes.co.uk]
Yorkshire Times [yorkshiretimes.co.uk]