Millions of people are postponing retirement and plan to keep working for an additional six years as their pension savings are too low, according to LV=.
The group's annual Working Late Index has revealed 6.5 million people intend to work for an additional 6.2 years, on average, post standard retirement age. This is a 43% rise on the 4.5 million people who planned to do so in 2010.
The research on a representative sample of 1,521 working people aged over 50 also found that this approach is likely to be more common among women than men.
More than 4 million women expect to work past the state retirement age, in comparison to 2.4 million men. However, men are likely to work for longer (6.9 years) than women (5.8 years).
Half of respondents said a lack of retirement funds motivated their decision, while 36% cited enjoying work.
LV= head of pensions Ray Chinn said: "With the government increasing the state pension age we would hope that those approaching retirement wouldn't feel they need to work beyond it.
"Unfortunately, this is not the case as many find that they have insufficient funds in their pension pots.
"Although there are many people who feel too young to retire and want to work for as long as they can, our research shows the majority say they will be forced to do so to survive financially."
Some 4.3 million over-50s have returned to work after retiring; 14% blamed an insufficient personal pension and 9% said the state pension was not enough.
The state pension age will rise to 66 for men and women by 2020, up from 65 and 60 respectively.
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