Jamie Dimon warns UK against bank tax hikes, citing City job risks

JPMorgan CEO Jamie Dimon cautioned the UK government that a windfall tax on bank profits could cost jobs in London's financial sector.

Jamie Dimon, CEO of JPMorgan Chase — the world's largest bank — publicly warned the UK chancellor against raising taxes on banks, arguing that a potential windfall levy on the sector's recent bumper profits would damage employment in the City of London. Dimon, a billionaire who oversees a institution with a major presence in the UK, made the remarks as the new Labour government weighs options for increasing tax revenue. The warning puts one of Wall Street's most prominent figures at odds with a government that came to power promising to address public finance shortfalls. Separately, UK housing data published the same day showed British house prices recorded their biggest August decline since 2018, according to Rightmove, even as some regional markets showed resilience — a sign of broader economic pressures shaping the fiscal debate.

Why it matters

The UK government's tax decisions on financial institutions could affect thousands of jobs in the City and influence where global banks choose to base operations. The housing price drop adds to signs of economic strain that will complicate Chancellor Rachel Reeves's budget planning.

What's next

The UK chancellor is expected to set out tax and spending plans in an upcoming budget statement, which will clarify whether any levy on bank profits moves forward.

Key facts

• Jamie Dimon is CEO of JPMorgan Chase, the world's largest bank by assets
• Dimon warned the UK chancellor directly against imposing a windfall tax on bank profits
• He cited potential job losses in the City of London as the key risk
• UK house prices fell in August at their steepest rate for that month since 2018, per Rightmove
• The remarks came as the UK's Labour government weighs options to raise tax revenue
• Rightmove data noted some regional resilience, including a so-called 'Burnham bounce' in Greater Manchester

Bias & framing notes

Both sources are from The Guardian, so there is no independent corroboration from a second outlet. Coverage focuses primarily on the warning from Dimon and its implications for UK tax policy, with no quote or response from the UK Treasury or chancellor included in the reporting summarized here. The framing leans toward the impact on the government's fiscal options rather than giving equal weight to the banking industry's perspective beyond Dimon's stated concern.

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