This is an opinion piece. The Guardian editorial board argues that Britain should increase taxes on banks through a restored surcharge, citing recent profit gains that stem largely from higher interest rates rather than improved business performance.

Britain's four largest banks earned £29bn in the first half of 2026, up 20 percent from 2025, according to campaign group Positive Money. The Guardian reports that Chancellor John Healey plans to tax British banks in the forthcoming budget. The proposed measure would restore the bank surcharge from 3 percent to 8 percent, potentially raising roughly £2bn annually, the BBC reported.

The editorial contends that banks have accumulated "windfalls" because higher interest rates allow them to charge more to borrowers while the Bank of England pays them tens of billions in interest on reserves. The Treasury covers the Bank of England's costs. The Guardian frames the modest tax increase as reclaiming only a small portion of sector gains.

Banks have publicly opposed the tax increase. They argue they already face higher taxes than other companies, contend they will not be able to lend as much if taxed further, and claim their profits are temporary. JPMorgan's Jamie Dimon issued a warning about the windfall tax to the UK chancellor, according to the Guardian's reporting.

The editorial invokes Jean-Baptiste Colbert's principle that taxation should extract maximum revenue with minimum resistance, suggesting banks have "plenty of feathers" to pluck. It frames the surcharge restoration as a response to banks' financial gains that owe more to monetary policy than to their own performance or innovation. The piece presents the surcharge as both modest in scope and justified given the scale of recent profits and the role of public policy in generating them.