On 31 August each year, Child Benefit stops for those aged 16+

Child Benefit stops on 31 August on or after a child’s 16th birthday if they leave education or training.  It continues if they stay in approved education or training, but the Child Benefit Office must be notified of this.  A letter is sent to parents/guardians in a child’s last year at school, prompting them to notify the
Child Benefit Office.

MPs might receive more correspondence on Child Benefit when the letters are received on or shortly after 31 August.  Contact the Child Benefit hotline for information to help answer constituents’ questions on Child Benefits.

For further information on this, and other Child Benefit issues, please see the Child Benefit section on Gov.UK