You can usually claim Child Benefit if you are responsible for a child under 16, or under 20 if they remain in approved education or training. Only one person can claim for each child, and the child will generally need to live with you, although special rules can apply if you share care or support a child who lives elsewhere. A higher-income tax charge may mean you repay some or all of the benefit, but you can still be eligible to claim. Check the latest rules and apply through the official GOV.UK Child Benefit guidance; HMRC decides claims based on individual circumstances.