Free wills are being made available to people aged over 55 in Birmingham, paid for by the Alzheimer's Society.
The charity has joined forces with eight law firms in the city to encourage people to make a will or amend their wills without incurring any costs.
Those involved are invited to leave a gift to the Alzheimer's Society in their will.
The pilot phase will run for four weeks, operating on a first-come, first-served basis. Law firms involved are based in Birmingham, Solihull and Sutton Coldfield.
The Birmingham and Solihull branches have particular experience in will writing for those suffering from dementia.
Shelley Johnston, fee wills scheme coordinator at the Alzheimer's Society, said: "We are delighted that Birmingham residents will be the first to benefit from the scheme and have access to local solicitors who have the knowledge to ensure people's wishes are carried out exactly as they want them to be.
"Everyone should have an up-to-date will and we hope that many will see this project as a way to out their affairs in order and to leave something that could help our work nationally or locally in the future."
Standard Life reported recently that half the UK population do not have a will and could die interstate.
The report also found that people with children are less likely to have made a will than those without.