Assuming you are still claimed as a dependent, by your parents, you do not enter anything about health insurance. if you click on the health insurance tab, you will get a screen that says "Since someone can claim you on their 2016 taxes, you don't have to complete health insurance.
Just because you are now 18, doesn't mean your parents can't still claim you.
A child of a taxpayer can still be a “Qualifying Child” (QC) dependent, regardless of his/her income, if:
1. 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
2. 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.
3. He lived with the parent
(including temporary absences such as away at school) for more than half
the year
Furthermore, there is a rule that says IF somebody else CAN claim him as a
dependent, he is not allowed to claim his own exemption. If he has sufficient
income (usually more than $6300), he can & should still file taxes; he just
doesn’t get his own $4050 exemption (deduction). In TurboTax, he indicates that
somebody else can claim him as a dependent, at the personal information
section.
Even if he had less, he is allowed to file if
he needs to get back income tax withholding. He cannot get back social security
or Medicare tax withholding.
