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PDF Report: Explore how economic pressures are shaping UK fiscal headroom, public finances and tax policy ahead of the Autumn Budget 2026.
In brief:
UK fiscal headroom has halved from £23.6bn in March to £11.3bn, narrowing the Chancellor's options ahead of the Autumn Budget 2026.
Rising gilt yields are the biggest drag, cutting headroom by an estimated £10bn.
In EY’s adverse scenario, the Middle East conflict keeps the Strait of Hormuz closed into 2027, cutting headroom by a further £18bn to a £7bn deficit and breaching the fiscal rule.
Manifesto commitments protect around 70% of tax revenues, leaving wealth-based taxes, capital gains and sector-specific levies among the few viable options for raising revenue.
Stronger growth would ease pressure and is the key swing factor for the public finances.