Bank details do not decide whether you qualify for Child Benefit; eligibility mainly depends on being responsible for a child under 16, or under 20 in approved education or training. You will normally need to provide suitable bank or building society details so HMRC can pay you, usually directly into the account. If you do not have an account or cannot use one, contact HMRC to discuss your options before applying. Check the latest requirements and claim process on the official GOV.UK Child Benefit page.