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from 8615 instructions

Was a full-time student at least age 19 and under age 24 at
the end of 2024 and didn’t have earned income that was
more than half of the child's support

 

 

what's included in support

support includes all amounts spent to provide the
child with food, lodging, clothing, education, medical and dental
care, recreation, transportation, and similar necessities. To figure
your child’s support, count support provided by you, your child, and others.

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so you are correct if her earned income exceeded 50% of her support'

are you claiming her as a dependent and did so indicate on her return?

you can not claim her as a dependent if she provided over 50% of her own support.