A qualifying relative starts with one condition: the person must not be anyone's qualifying child, whether yours or another taxpayer's. If that condition is met, the person must also pass these tests:
- Relationship or household: either a listed relative, who can live anywhere, or anyone else who lived with you all year as a member of your household (as long as the relationship doesn't break local law). The listed relatives are your child, stepchild or foster child and their descendants; your brother, sister, half brother, half sister, stepbrother or stepsister; your parents, grandparents and other direct ancestors (but not a foster parent); your stepfather or stepmother; your nieces and nephews; your aunts and uncles; and your in-laws. A cousin is not a listed relative, so a cousin must live with you all year. Someone who was your spouse at any time during the year can't be your qualifying relative.
- Gross income: under $5,200 for 2025. Pay that a permanently and totally disabled person earns at a sheltered workshop doesn't count.
- Support: you provided more than half of the person's total support for the year. This runs the other way from the child path, which asks what the child paid; here the question is what you paid.
- Citizenship and joint return: the same citizenship test and joint-return test as for a qualifying child.
Worked example
Sam's friend Ana, 40, lived with Sam all year as a member of his household. She earned $3,000 in 2025, Sam paid more than half of her support, she is a U.S. citizen and she filed no return. Nobody can claim her as a qualifying child, so that condition is met. Ana is not related to Sam, but she lived with him all year, so she passes the household test. Her income is under $5,200, Sam paid over half her support, and she passes the citizenship and joint-return tests, so she is Sam's qualifying relative. Had she moved in during March instead, she would fail the household test, because someone who is not a listed relative must live with you the whole year.