The number of enquiries about people who have died without making a will has more than doubled over the past five years, Citizens Advice says.
The charity told BBC 5 live Daily it had 1,522 such queries in 2011, rising to 3,747 in 2015, along with a rise in queries about problems executing wills.
According to a YouGov survey, nearly two thirds of the British adult population do not have a will.
Lawyers say not leaving one can cause financial stress for loved ones.
