758,000 matured Child Trust Fund accounts remain unclaimed, with the average account worth more than £2,240. The savings accounts are not held by government but are held in banks, building societies or other saving providers. Martin says many people do not know they have a Child Trust Fund. Just search ‘find my Child Trust Fund’ on GOV.UK to find your savings account today." More than 563,000 young people went online to find their Child Trust Fund in the 12 months to the end of August 2025.