JP Morgan boss Jamie Dimon to warn UK chancellor against bank tax hike

Wall Street billionaire's meeting with John Healey comes amid deep speculation over higher windfall tax on banks in October budget

Jamie Dimon, the chief executive of the largest US bank, JP Morgan, is to warn John Healey against raising taxes on banks in his inaugural budget in October.

The Wall Street billionaire will meet the new chancellor on Wednesday and caution him that higher taxes could put investment and employment in the UK at risk, it is understood.