You can make a Child Benefit claim even if you do not currently have bank details, but you should tell HMRC how you need to receive any payments. Child Benefit is normally paid into a bank or building society account, and providing accurate details can help avoid delays. If you do not have an account or cannot use one, contact HMRC to discuss available payment arrangements. Check the latest guidance and application process on GOV.UK, as HMRC will decide what information and payment method apply to your circumstances.