Chancellor John Healey is considering reducing the UK Government's fiscal buffer—a financial cushion designed to protect against future economic shocks—in an effort to minimize the need for additional tax increases in the upcoming Budget. The move comes amid growing concerns about the impact of international conflicts and domestic economic pressures on public finances.
The Treasury has engaged with investors to gauge their reactions to a smaller fiscal headroom in meeting the Government’s fiscal rules. This review follows a significant contraction in the fiscal buffer originally set at £24 billion by Rachel Reeves, Healey’s predecessor, largely due to the financial fallout from the ongoing conflict involving the United States, Israel, and Iran.
Prime Minister Andy Burnham has emphasized the importance of making difficult fiscal choices while avoiding measures that could stoke inflation. He has sought to reassure markets and investors of the Government’s commitment to reducing borrowing and maintaining economic stability. “We have had two budgets in 2024 and 2025, and we have to be conscious of the extent to which we have raised revenue,” Burnham said during remarks in New York, underscoring the need to strike a balanced approach.
The Treasury has explored options such as increasing taxes on banks, property owners, and gambling companies to improve public finances. However, Burnham has indicated a preference to steer clear of steep tax hikes following two significant revenue-raising budgets implemented by Reeves.
Meanwhile, David Miles, a senior official at the Office for Budget Responsibility (OBR), cautioned that repeated tax increases could have substantial economic repercussions, potentially undermining incentives to work and invest. He highlighted the limits of current tax-setting policies, suggesting that maintaining them over the long term may not be sustainable without risking economic harm.
According to Deutsche Bank’s analysis, rising government borrowing costs and inflation have eroded approximately £15 billion of the £23.6 billion fiscal headroom outlined in the Spring Statement earlier this year. This reduction leaves Healey with only about £8.6 billion in fiscal space unless new tax or spending measures are introduced to replenish the buffer.
Within government circles, some officials reportedly consider a smaller buffer—ranging from £15 billion to £20 billion—acceptable under current conditions. The Government is expected to present its fiscal plan at the Labour Party conference next week, where Burnham is anticipated to project a message of optimism and fiscal stability.
Despite these intentions, financial sector leaders have warned that investors will respond negatively to any signs of fiscal looseness in the Oct. 28 Budget. A City executive noted that maintaining investor confidence requires credible commitments to fiscal discipline, often involving politically challenging decisions. Rupert Harrison, a senior adviser at investment firm PIMCO, further warned that markets, wary after recent volatility, may view any deliberate reduction in fiscal headroom as a risk, potentially triggering adverse responses.