More than 670,000 18–22-year-olds yet to claim their Child Trust Fund are reminded to cash in their stash as HM Revenue and Customs (HMRC) reveals the average savings pot is worth £2,212.

Child Trust Funds are long term, tax-free savings accounts which were set up, with the government depositing £250, for every child born between 1 September 2002 and 2 January 2011. Young people can take control of their Child Trust Fund at 16 and withdraw funds when they turn 18 and the account matures.

If teenagers or their parents and guardians already know who their Child Trust Fund provider is, they can contact them directly. If they do not know where their account is, they can use the online tool on GOV.UK to find out their Child Trust Fund provider.