UK Chancellor's £35bn Budget Challenge

Chancellor John Healey confronts a £35bn fiscal challenge to meet spending pledges without cuts, according to a leading think tank. Separately, the International Monetary Fund has identified surging bond yields and AI-driven market corrections as key threats to global financial stability.

UK Fiscal Pressure

Chancellor John Healey must find £35bn to avoid public spending cuts while meeting defence promises, the Institute for Fiscal Studies warned. The IFS stated this 'top-up' is needed to raise defence spending to 3% of national income by 2030 and increase health spending without squeezing other departments. Higher inflation, linked to conflict in the Middle East, is eroding planned spending, forcing a choice between cuts, tax rises, or a mix of both.

The think tank emphasized that Healey must set out 'credible' spending plans in the Budget on 28 October. IFS director Helen Miller argued a 'steady-as-she-goes' Budget is not an option, as inherited plans already implied future cuts. She stated that simply pencilling in unrealistic future cuts would make the Budget 'a work of fiction.' The government is under pressure to demonstrate a tight grip on finances to financial markets as borrowing costs rise.

Miller noted that aiming to fund defence increases and avoid other cuts within current plans would require reducing other services by approximately £35bn. She suggested raising taxes to this scale would be difficult, especially given manifesto pledges not to increase National Insurance, income tax, or VAT. The IFS expects the government to meet its fiscal rules but with a reduced buffer, or 'headroom,' of around £20bn, down from a previous £24bn forecast.

IMF's Global Risk Warning

The International Monetary Fund warned that three interconnected risks threaten broader financial stability: an AI-driven market correction, a sharper rise in sovereign bond yields, and cyberattacks. The IMF's October Global Financial Stability Report stated these factors could trigger broad deleveraging, asset repricing, and operational disruptions, amplified by high borrowing and scarce liquidity.

The report explained that faltering AI investment and profitability could challenge optimistic expectations and trigger a correction in AI-linked asset prices, with growing leverage as a potential catalyst. Simultaneously, soaring bond yields, driven by factors like high crude oil prices and fiscal concerns, raise discount rates and depress valuations across assets, including AI-related ones, while reducing the collateral value of bonds.

While these three risks do not necessarily threaten financial stability outright, the IMF cautioned they could become systemic impairments to financial intermediation and credit provision if amplified by underlying vulnerabilities. Global stress tests indicated the banking system would remain adequately capitalized in a bond yield spike or AI-correction scenario, but a significant share of vulnerable institutions would emerge. The IMF noted that emerging market economies have shown resilience, with risk premiums retracing to levels seen before the Middle East conflict, aided by targeted fiscal support and monetary policy actions.