Children you can claim for
You can also claim child benefit for:
Your spouse’s children if they live in your household
Foster children if they live in your household, are long-term
members of your family, and their parents no longer have custody over them
Grandchildren, if you have taken them into your household. Do you meet any of these criteria? If
so, you can claim child benefit for any children who have not yet completed age 18. In certain
circumstances, you may also be able to claim child benefit for children over 18.