The Guardian reports that Chancellor John Healey is considering raising the bank profit surcharge from 3% toward 8%. The measure could raise more than £2 billion annually, but it remains a proposal until the budget.
Britain's largest banks face a fresh policy risk before the 28 October budget. The Guardian reports that Chancellor John Healey is considering increasing the corporation-tax surcharge on bank profits, with a return toward the previous 8% rate among the options under discussion.
The current surcharge is 3% on qualifying bank profits above an allowance, paid in addition to the main corporation-tax rate. The 3% rate was introduced when the main rate rose to 25%, replacing an 8% surcharge. The reported reversal could raise more than £2 billion a year, according to the Guardian, but the Treasury had not announced a final measure.
The fiscal pressure is broader than banks. Government borrowing costs have risen, and the chancellor is trying to keep deficit reduction on track while absorbing the effects of war in the Middle East. Banks are an obvious target because their earnings have benefited from higher interest rates. The Guardian calculated that HSBC, NatWest, Barclays and Lloyds generated about £200 billion of pretax profit over five years.
Proposal is not policy
Investors should not treat an 8% surcharge as enacted. The final rate, profit allowance, effective date and treatment of different banking entities could change the earnings impact materially. A higher surcharge also interacts with corporation tax and the separate bank levy, so a headline rate is not the same as the group's total effective tax increase.
Official statistics show the sector already contributed £39.1 billion through payroll taxes, corporation tax, the bank levy and surcharge in the 2025-26 financial year, up 8.5% from the prior year. That provides context, not an argument for or against the proposal.
The immediate catalyst is the budget. If the surcharge rises, analysts will need to recalculate domestic bank earnings and capital generation using each lender's taxable UK profit, rather than applying the rate to global pretax income. Until the budget is published, the story is a credible policy report with downside risk, not a settled tax charge.
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