Overview 

You can get permission to deal with someone else’s tax credits. The type of permission you need depends on what you want to do.  

You can:  

• contact HM Revenue and Customs (HMRC) about someone else’s claim - as an authorised intermediary (external link)  

• take responsibility for someone else’s tax credit claim when they cannot manage their own affairs - as an appointee (external link)  

• claim tax credits for both your child and their baby (external link)