Former Chancellor Hunt Warns Bank Tax Hike Would Destroy Jobs as UK Budget Jitters Drive Banking Stocks Lower
Former Chancellor Jeremy Hunt issued a public warning on 5 October 2026 to current Chancellor John Healey against raising taxes on UK banks in the forthcoming 28 October Budget. Writing in the Times, Hunt cautioned that increasing the banking surcharge (a sector-specific levy paid on top of corporation tax) would drive capital abroad, reduce investment, and ultimately generate less tax revenue rather than more. The banking surcharge currently sits at 3%, having been cut by Hunt from 8% in April 2023, placing the effective corporation tax rate for UK banks at 28%. Lobby groups and some politicians have called for the surcharge to be raised to 5%; Housing Secretary Angela Rayner made a similar call last year, urging then-Chancellor Rachel Reeves to raise it, before Reeves left office. Some campaigners have gone further, proposing a windfall tax on bank profits. The warning came against a backdrop of sharp falls in UK banking stocks on 1 October 2026, as 30-year gilt yields hit their highest level since 1998. Shares in Barclays, HSBC, and Lloyds all fell, after Sky News reported their chief executives had been summoned to meet Healey ahead of the Budget. The Treasury declined to comment when contacted. The combination of elevated gilt yields, energy prices driven by Middle East conflict, and pre-Budget uncertainty has created a particularly hostile environment for UK bank equities, with investors pricing in both a potential tax increase and broader macroeconomic headwinds.
Why this matters
The pre-Budget debate over bank taxation sits at the intersection of fiscal policy, financial regulation, and the UK's competitiveness as a centre for global banking. A surcharge increase, even a modest one to 5%, would raise the effective tax rate for UK-headquartered banks above their European peers, potentially incentivising capital reallocation or booking decisions away from London. The timing is particularly sensitive: UK bank stocks are already under pressure from gilt market volatility and energy-driven inflation fears, meaning a tax raid could compound equity market stress. For City firms advising banks on capital structure and regulatory compliance, the Budget outcome will directly shape client demand over the following quarters.
On the Ground
Tax advisory, regulatory, and financial regulation practices will be most active in advising bank clients on Budget scenario planning, including modelling the capital and profitability impact of various surcharge levels and the legal options available if a windfall tax is introduced. Banking and finance lawyers will also be tracking whether higher effective tax rates trigger review of intra-group financing arrangements or capital repatriation strategies. A trainee assisting on a banking regulatory matter would help draft compliance gap analysis memos assessing the impact of any surcharge change on a bank's capital adequacy ratios (the minimum capital buffers banks must hold as a proportion of their risk-weighted assets) and update remediation trackers as Budget announcements are made.
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“How would you advise a major UK bank on the legal and commercial risks of the proposed banking surcharge increase ahead of the October Budget?”
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