Key facts
- JP Morgan CEO Jamie Dimon warned UK leaders against a proposed bank tax hike.
- The tax increase could threaten a multi-billion pound investment in a new Canary Wharf headquarters.
- The new headquarters is intended to be JPMorgan Chase's European nerve center.
- The investment is estimated between £3 billion and £10 billion over six years.
- Banks have reported record profits due to high interest rates, making them targets for a windfall tax.
JP Morgan CEO Jamie Dimon has cautioned UK Prime Minister Andy Burnham and Chancellor John Healey that proposed tax increases on banks could jeopardize a significant investment in a new Canary Wharf headquarters. Dimon reportedly urged against creating a hostile tax environment for financial institutions during a meeting in September 2026. The proposed tower, projected to be the tallest in Canary Wharf, is seen as a vote of confidence in London's status as a financial hub and is expected to inject billions into the local economy over six years. Trade unions and some lawmakers are advocating for a windfall tax on bank profits ahead of the upcoming Autumn Budget, citing record profits due to high interest rates. Dimon argued that punitive taxes harm shareholders, reduce capital for lending, and lead to job cuts.