Caring for young children is a major factor preventing women from providing for their old age, a study suggests.
According to the survey, 50% of women who are saving for retirement stop when they have a child. As a result, only 15% of women who have children aged under five are paying pension contributions.
Insurance firm Scottish Widows, which commissioned the research, said giving up work after the birth of a child was a key factor.
The company said the pensions system is overlooking the needs of women, so many women are living on low incomes in retirement.
The problem of how to lift people out of poverty when they retire is currently the subject of intense scrutiny.
At the end of November, the government’s Pensions Commission, led by Adair Turner, will publish its final recommendations on how the UK’s pension provision could be improved.