Jamie Dimon’s meeting with Manchester mayor Andy Burnham puts JPMorgan Chase at the center of a mounting UK political fight over whether banks should help fill Chancellor John Healey’s fiscal gap with a windfall tax.
JPMorgan, UK banks face possible windfall tax
The intervention matters because any bank levy would hit a sector still seen as one of Britain’s few reliable profit engines, but also one with the deepest pockets and the broadest political baggage. Labour lawmakers and trade unions are pressing Healey and Prime Minister Keir Starmer to target banks in next month’s Budget, arguing lenders have benefited from higher rates and should contribute more as the government looks for revenue.
Sentiment IndicatorsⓘProprietary · adalytica.com · September 11, 2026
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For investors, the risk is twofold: a direct hit to bank earnings and a sharper rerating of UK lenders if ministers signal that financial firms are again in the crosshairs. JPMorgan, HSBC and domestic peers such as Lloyds and NatWest all trade partly on expectations that policymakers will protect credit supply and avoid another round of sector-specific taxes.
Banks have been here before. Britain imposed a bank levy after the financial crisis and later added a surcharge, and a fresh windfall tax would revive fears that lenders are an easy target whenever the Treasury needs cash. Dimon’s decision to weigh in underscores how seriously global banking chiefs are taking the prospect, especially as similar moves are debated elsewhere in Europe.
The market backdrop is fragile enough to amplify the warning. JPMorgan shares last traded around $353.56, above both the 50-day and 200-day moving averages, while HSBC ended at $103.70 and also held above those long-term benchmarks, but both stocks have cooled from recent highs. Broader risk appetite is weak, with Adalytica’s S&P 500 trade signal flashing extreme fear, leaving investors more sensitive to policy shocks than they were earlier in the year.
The next catalyst is the Budget itself, when Healey will decide whether to lean on banks for extra revenue or stick with a broader tax mix that avoids rattling lenders and credit markets.
| Entity | Gains | Losses |
|---|---|---|
| UK Treasury | ▲More revenue options | ▼Bank-sector backlash |
| JPMorgan, HSBC, UK lenders | ▲Avoid higher taxes | ▼Lower profits if taxed |
| Labour unions / fiscal hawks | ▲Tougher stance on banks | ▼Weaker bank investment |
| Bank shareholders | ▲Status quo / earnings protection | ▼Rerating risk if levy imposed |
