if your parents are claiming you as a dependent, you have nothing to report except that in TT you'll need to report you were covered.
It will be your parents responsibility to report everything. their tax family will include you for purpose of the 8962. they will need to report total household income which will include you modified AGI. here is info from form 8962 instructions modified to fit the situation .
Household income. For purposes of the PTC, household income is the modified adjusted gross income (modified AGI) of you and your parents. so for them to file their tax return and properly complete the form they'll need to know your MAGI
MAGI is the AGI on your tax return plus certain income that is not subject to tax (foreign earned income, tax-exempt interest, and the portion of social security benefits that is not taxable
now if they can't claim you. there are two tax families you and them for you and your parents
Allocation Situation 4. Other situations where a policy is shared between two tax families. Complete Part IV using the rules in this section if you need to allocate policy amounts
this generally applies if another taxpayer (your parents) indicated to the Marketplace that his or her tax family would include you and APTC was paid on behalf of the individual. In such cases, the Form 1095-A sent by the Marketplace for the policy does not accurately reflect the members of your (parents) coverage family
and you. Therefore, you and the your parents must allocate the enrollment premiums, the APTC, and the applicable SLCSP premium so that each family is able to compute their PTC and reconcile their PTC with the
APTC paid for their coverage. Under the rules in this section, you and the other taxpayer
may agree on any allocation of the policy amounts between the
two of you. (they can claim 100%) You may use the percentage you agreed on for every
month for which this allocation rule applies, or you may agree on different percentages for different months. However, you must use the same allocation percentage for all policy amounts (enrollment premiums, applicable SLCSP premiums, and APTC) in a month. If you cannot agree on an allocation percentage,
each taxpayer’s allocation percentage is equal to the number of individuals enrolled by one taxpayer who are included in the tax family of the other taxpayer for the tax year divided by the total number of individuals enrolled in the same policy as the individual(s). The allocation percentage you use and that you put
on line 30 of Form 8962 is the percentage of the policy amounts for the coverage that you will use to compute your PTC and reconcile APTC.
if they claim 100% you do not file 8962.
