The family member can be your dependent if you provided more than half of their support and they are related as described below and didn’t have more than $4,700 in taxable income. Social Security benefits don’t count.
People who don’t have to live with you. A
person related to you in any of the following
ways doesn't have to live with you all year as a
member of your household to meet this test.
• Your child, stepchild, or foster child, or a
descendant of any of them (for example,
your grandchild). (A legally adopted child is
considered your child.)
• Your brother, sister, half brother, half sister,
stepbrother, or stepsister.
• Your father, mother, grandparent, or other
direct ancestor, but not foster parent.
• Your stepfather or stepmother.
• A son or daughter of your brother or sister.
• A son or daughter of your half brother or
half sister.
• A brother or sister of your father or mother.
• Your son-in-law, daughter-in-law, fa-
ther-in-law, mother-in-law, brother-in-law,
or sister-in-law
To determine support this might help.
https://apps.irs.gov/app/vita/content/globalmedia/teacher/worksheet_for_determining_support_4012.pdf
