The rule is: you may NOT claim the full standard deduction if you qualify as your parent's dependent. It doesn't matter if they actually claim you or not.
So, you are still subject to a lesser deduction due to the unearned income and the fact that you qualify as their dependent.
A child of a taxpayer can still be a “Qualifying Child” (QC) dependent, regardless of his/her income, if:
- He is under age 19, or under 24 if a full time student for at least 5 months of the year, or is totally & permanently disabled
- He did not provide more than 1/2 his own support. Scholarships are considered third party support and not as support provided by the student.
- He lived with the parent (including temporary absences such as away at school) for more than half the year
