When you claim Child Benefit, you normally provide your National Insurance number, the child’s details and your bank or building society information. HMRC may be able to verify your identity electronically, but it can ask for additional proof if it cannot confirm your details. This could include documents such as a passport or driving licence, although HMRC will tell you exactly what it accepts and how to provide it. Check the latest guidance on GOV.UK and do not send original documents unless HMRC specifically requests them.