Banks are “forgetting the lessons” of the financial crisis, increasing the risk of reckless lending which could land them — and the wider economy — in trouble later, Mark Carney has warned.

Credit card lending is booming and the Bank of England fears that banks are becoming complacent, assuming the relatively good economic times will continue indefinitely.

As a result lenders are cutting down the amount of capital they put aside to keep them safe if those loans turn bad — something that could leave them in financial trouble if there is a recession and customers cannot pay back their debts.