Chancellor Rachel Reeves is bracing for a challenging Budget in November, after the Office for Budget Responsibility (OBR) downgraded its forecasts for UK productivity growth. The changes could widen the government’s fiscal deficit by up to £20bn, intensifying the pressure on Reeves as she aims to keep Labour’s economic pledges on track.
With the productivity downgrade, each 0.1% reduction in the OBR’s five-year forecast adds around £9bn to government borrowing, compounding an already difficult outlook. Servicing the government’s existing debt is estimated to cost over £111bn this year alone – a figure comparable to the entire education budget – and significantly higher than in recent years.
In response, Reeves has publicly acknowledged that both tax hikes and spending cuts are possible in the upcoming Budget. The Chancellor reiterated that “there will be no return to austerity,” but also insisted that sustained public investment must not come at the expense of economic discipline. With her self-imposed rules restricting borrowing for everyday government spending, there is little room for fiscal manoeuvre without significant policy changes.
Economic analysts have warned that some government departments may see real-terms reductions despite commitments to boost key areas such as the NHS and housing. The Institute for Fiscal Studies cautioned that any large increases in NHS funding would likely mean budget cuts elsewhere or further tax rises. Labour’s plans – to deliver increased funding for health, defence, and housing – are set against a backdrop of global uncertainty and calls from within the party to avoid “fiscal tinkering” in favour of more radical solutions.
Reeves is under pressure on multiple fronts, including from Conservative critics who describe Labour’s approach as a “spend now, tax later” strategy, and from Reform UK, which argues that current spending is unsustainable. Her upcoming Budget is expected to be a defining moment for Labour’s economic credibility, as the public and markets watch closely to see how the Chancellor navigates the formidable fiscal challenge.
