"But I am over 18 and nobody can claim me."
You should be aware that the fact that you're over 18 does not by itself mean that someone else can't claim you. For example, a full-time student ages 19-23 can be claimed as a dependent if they didn't provide over half of their own support and they lived with their parents except for time away at school.
Also, you have to mark on your tax return if someone else can claim you, regardless of whether they actually do claim you or not.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
