How to get a National Insurance number for a child who is being looked after by a local authority.
Children who are looked after by local authorities do not automatically get a National Insurance number.
If you’re a child’s social worker, you should write to HMRC to apply for a National insurance number on the child’s behalf.
How to apply
You should apply:
- after a child is 15 years and 9 months
- in writing, to HMRC using your local authority’s official letter-headed paper
The letter must include:
- a statement that you’re a social worker applying for a National Insurance number for a looked after child
- the child’s full name
- any previous names the child has used
- the child’s date of birth
- the date the child went into care
- the child’s current residential address
- the contact details of the social worker who has written the letter
If the child is a British citizen, the letter should also include:
- any previous addresses (such as their parent’s old address or the child’s last address before they were taken into care)
- a photocopy of either:
- the child’s birth certificate
- their Care Order
- the ID page of the child’s passport
If the child is an unaccompanied minor and supported by the Home Office, you must include photocopies of either:
- the child’s Home Office documents
- both sides of a residence permit
The letter and photocopies of any documents should be posted or faxed to:
PT Operations North East England
HM Revenue and Customs
Fax: 0191 213 1262
You must send a separate letter for each National Insurance number application you make.
What happens next
HMRC will send a letter to the child confirming their National Insurance number.
If more information is needed we will issue a CA3530 ‘Application for a National Insurance number for a child looked after by a local authority’ to confirm the details needed.