Qualifiying child
A qualifying child must satisfy all six of the following tests:
1. Relationship: The child must be the taxpayer's child or stepchild (whether by blood or adoption), foster child, sibling or stepsibling, or a descendant of one of these.
2. Age: The child must be:
a. under the age of 19 at the end of the year and younger than you (or your spouse, if filing jointly),
b. under the age of 24 at the end of the year, a full-time student for at least five months of the year and younger than you (or your spouse, if filing jointly, or
c. any age if permanently and totally disabled at any time during the year.
3. Residence: The child must have the same principal residence as the taxpayer for more than half the year. Exceptions apply in certain circumstances for children of divorced or separated parents, kidnapped children, temporary absences, and for children who were born or died during the year.
4. Support: The child must not provide more that one-half of his or her own support for the year.
5. Filing Status: The child is not filing a jont return for the year (unless that return is filed only as a claim for a refund).
6. Tie-breaker rules: The child must only qualify as your qualifying child or if the child meets the rules to be a qualifying child of more than one person, you must be the person entitled to claim the child as a qualifying child based on the tie-breaker rules.