Autumn Budget 2025 Predictions: A Tightrope Walk for the Chancellor

As Chancellor Rachel Reeves prepares to deliver the Autumn Budget on November 26, the overarching consensus among economists is that the fiscal landscape is defined by challenge. Major firms like Grant Thornton and BDO agree that the government faces a formidable fiscal shortfall, estimated to be between £20 billion and £40 billion, necessitating tax-raising measures despite pledges to the contrary. The most widely predicted general measure is a continuation of “fiscal drag,” with sources like EY and RSM suggesting an extension of the freeze on personal income tax and National Insurance (NICs) thresholds beyond the current 2028 end date to generate significant revenue through stealth. Furthermore, there is intense speculation, particularly cited by BDO and EY analysis, that the Chancellor may raise income tax rates while simultaneously cutting employee NICs—a move designed to raise funds from investment and pension income while allowing the government to argue it has protected the majority of “working people.”

For Small and Medium-sized Enterprises (SMEs), which are currently battling low confidence according to surveys by the IoD and FSB, the predictions are a mixture of heightened tax risk and targeted relief. In terms of funding and subsidies, two key areas are frequently highlighted by analysts. Firstly, there is strong cross-sector pressure to provide immediate cash flow relief, with accounting firms such as Streets and BDO predicting a freeze on business rates or a valuable extension of the Small Business Rates Relief (SBRR) threshold to reduce fixed costs for small high-street premises. Secondly, in a bid to drive productivity and long-term growth, a broad consensus suggests the Budget will reinforce existing investment incentives, specifically maintaining the full expensing policy (100% capital allowances) and preserving key R&D reliefs.

Beyond tax and core investment allowances, predictions consistently point towards the introduction of specific subsidies aimed at modernisation. White Oak UK and Elephants Child both anticipate new or improved targeted grants and incentives for digital adoption, technology upgrades, and energy efficiency. These schemes, often tied to productivity or sustainability goals, offer SMEs the chance to secure funding for operational improvements, though these opportunities are often short-lived and require swift action. Ultimately, while the looming fiscal gap makes general tax hikes likely, the collective analysis from various economic think tanks and business advisors suggests the Chancellor will attempt to balance the books by pairing the increases with targeted subsidies and tax reliefs designed to encourage vital investment and ease the immediate burden on the UK’s engine of growth, the SME sector.