Two UK-based lending affiliates of Citigroup are to close, the bank has announced.
Future Mortgages and CitiFinancial, which sells personal loans, will be wound down - leading to the loss of around 570 jobs.
Citi has been one of the banks worst hit by the credit crunch - and has written off billions of dollars of bad debts as a result.
Both Citi businesses have now stopped lending to new customers - with existing mortgages and unsecured lending to now be covered elsewhere in the bank.
Earlier this month, the bank's chief executive Vikram Pandit announced a wide-ranging restructuring program, which will see $400 billion of assets sold off in a bid to shore-up balance sheets.
Citi must "get fit", then "restructure" and then "maximise" he told the firm's annual meeting.
However, the downsizing plans have been subsequently criticised by analyst Meredith Whitney - who termed them "impossible".
"They don't have the revenue power, they don't have the earnings power in so many of their businesses [to make them work]," she told Bloomberg.
"Even Stephen Hawking could not pull this off."