The tax is expected to last for just one year and could either take the form of a supertax on bonuses or a larger employers’ National Insurance charge on the banks.
Speaking on the BBC’s Andrew Marr show yesterday, Darling said: “We are not going to be held to ransom by people who believe you can pay extraordinarily high bonuses without regard to what’s going on.”
The news follows directors of Royal Bank of Scotland’s threat to resign the Government blocks their move to pay a reported £1.5bn in bonuses to investment staff.
Conservative Shadow Chancellor George Osborne has said he would not rule out a windfall tax on bonuses.
Liberal Democrat Shadow Chancellor, Vince Cable says: “There is a complete lack of clarity at the heart of the Labour and Tory approaches to banks.
“The simple and correct approach, since many banks are returning to high levels of profitability, is for banks to pay for the taxpayer guarantee that they currently enjoy.
“A 10 per cent levy on bank profits would raise around £2bn in current conditions and would go to paying down the deficit.
“This is a much more effective solution than a one off levy and recognises the debt that the banks owe to the taxpayer.”