HMRC letter codes · Child Benefit (CH)
CH2Child Benefit claim form
Last reviewed 14 October 2026 · How Tax Letters checks its facts
In short
GOV.UK says Child Benefit form CH2 is the form to use if you cannot claim Child Benefit online.
“Use these forms if you cannot claim Child Benefit online … Fill in Child Benefit form CH2”
GOV.UK: Claim Child Benefit if you cannot claim online · checked 14 October 2026
Information, not advice: this page reports what HMRC, GOV.UK and the bodies named publish about CH2. Each fact has its source and the day it was checked beside it.
What it asks
GOV.UK says to send the filled-in CH2 to the Child Benefit Office, and that the address is on the form.
“Fill in Child Benefit form CH2 and send it to the Child Benefit Office. The address is on the form.”
GOV.UK: Claim Child Benefit if you cannot claim online · checked 14 October 2026
GOV.UK says a claim for more than 2 children also needs the additional child form CH2(CS), sent with the CH2.
“If you’re claiming for more than 2 children, complete the additional child CH2(CS) form and send it with your CH2.”
GOV.UK: Claim Child Benefit if you cannot claim online · checked 14 October 2026
Free help and HMRC contacts
GOV.UK says the Child Benefit claim notes can help you complete the CH2 form.
“You can use the Child Benefit claim notes to help you complete the form.”
GOV.UK: Claim Child Benefit if you cannot claim online · checked 14 October 2026
GOV.UK says that if you cannot claim online or use the CH2 forms, you can contact HMRC to claim by phone.
“If you cannot claim online or by using these forms, you can contact HMRC to claim by phone.”
GOV.UK: Claim Child Benefit if you cannot claim online · checked 14 October 2026
Free help first
These routes are described by GOV.UK, TaxAid and Citizens Advice themselves.
- HMRC's extra supportHMRC offers extra support if your health condition or personal circumstances make it difficult to contact HMRC, for example a mental health condition, financial hardship or being treated in hospital.
- Someone to deal with HMRC for youYou can authorise a friend, relative or voluntary organisation to talk to HMRC for you and help you fill in forms.
- TaxAidTaxAid helps people with tax problems who cannot pay for advice. Tax Help for Older People merged with TaxAid in July 2025.
- Citizens AdviceCitizens Advice gives confidential advice online, over the phone and in person, for free.
- GOV.UK: Claim Child Benefit if you cannot claim online (checked 14 Oct 2026)
- GOV.UK: Get help from HMRC if you need extra support (checked 7 Oct 2026)
- GOV.UK: Appoint someone to deal with HMRC on your behalf (checked 7 Oct 2026)
- TaxAid: About us (checked 8 Oct 2026)
- Citizens Advice: About us (checked 7 Oct 2026)