@igernald said "My parents paid for my tuition and claimed it" (the1098-T and the tuition credit).
They can't do that. Just paying your tuition is not enough. You must qualify as their dependent and they must claim you as a dependent for them to claim the tuition credit.
If you do not qualify as their dependent (officially independent), you can claim the tuition credit (claim the 1098-T), even though your parents paid the tuition. But there is a possible restriction. A full time unmarried student, under age 24, even if you don't qualify as a dependent, is only eligible for the refundable portion of the American Opportunity Credit if he supports himself by working. More than half your support must come from earned income.
