A Child Trust Fund is a tax-free savings account for children born between 1st September 2002 and 2nd January 2011. The annual CTF allowance is currently £4,128, the same as the Junior ISA allowance.
Children with a CTF cannot have a Junior ISA, but their investments can now be transferred into the new product. Download the CTF to JISA Transfer form.
If you think that your child has a CTF, but don't know which company it is with, you can check with HMRC by calling them or visiting www.hmrc.gov.uk/tools/childtrustfundclaim/ctfaccount.htm
Parents should also check whether they are the registered contact for the account, as transfers can only be instructed by the registered contact and the CTF provider will only provide information to the registered contact.