According to recruitment firm Badenoch & Clark's workplace study, the number working overtime has shot up to 77%, compared with 26% last autumn and 17% in 2007.
Almost a fifth (17%) of respondents also had to take a pay cut to remain in work.
Alison Burgin, executive director at Badenoch and Clark, says: "As businesses look to combat the economic downturn, they are looking to their workforce to help them weather the storm.
"As a result there are a growing number of banking and financial services professionals feeling the pressure and facing longer working hours, increased responsibility and fewer rewards.
"In the short term, these findings are likely to have an impact on business performance. As morale drops, employees will grow less productive. In the longer term these unrewarded pressures could lead to a loss of talent once the downturn lifts."
Increase in overtime saps financial workers' spirit
Nearly half of banking and financial services employees (47%) claim to be working longer hours to deal with growing workloads.
