That is according to a survey conducted by Consumer Intelligence for Pay4Later.
In total, it said the findings suggested 23% of the adult population – which would work out at 10.9 million people - planned to retrain so they can start a new job.
Of those that want to find a new career, 12% said they wanted to work in finance.
This was the third highest professional sector after healthcare (22%) and education (18%).

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Workers in London were the most likely to retrain over the next three years – around 38% of adults in the capital said they were looking to learn new skills.
However working adults in Wales were the least interested in retraining with just 16% saying they will do so over the next three years
The peak age group for retraining or starting new courses was 18 to 24-year-olds – around 48% said they will retrain to start a new job in a new industry. However 39% of 35 to 44-year-olds have also been considering retraining by 2018.
The research showed that on average they will spend £8,500 doing this. Just 14% of those who are planning to retrain said it wouldn't cost them anything.
Scott Law, chief executive of Pay4Later, said: "There are so many job opportunities open to people today, but often to realise their dreams they have to train and pass professional qualifications, which can come with a financial cost."
Workers in London look the most likely to retrain over the next three years – around 38% of adults in the capital said they were looking to learn new skills. However working adults in Wales were the least likely to retrain with just 16% saying they will do so over the next three years.