What relationship must exist with the child for them to be considered for tax purposes?

For tax purposes, a child relationship must exist. This applies to children who are directly related to you or your foster children.

A direct relationship exists with legitimate and illegitimate biological children as well as adopted children. When a minor child is adopted, the child loses their child relationship with their biological parents.

Foster children are considered if they live in your household and have been integrated into your family. Additionally, there must be no custody and care relationship between the foster child and their biological parents.

Grandchildren and stepchildren are not considered for the child allowance, education allowance, and allowance for care, education, or training (BEA allowance). However, this can be circumvented by transferring the allowance. For this, the biological parents must give their consent.