8850 / What is “household income” and how does it determine whether an individual is eligible for a premium assistance tax credit?

Household income is a taxpayer’s modified adjusted gross income (MAGI, see below) plus the aggregate modified adjusted gross income of any other individual who was both (1) taken into account in determining the taxpayer’s family size for purposes of determining qualification for the credit and (2) required to file a federal tax return for the tax year in question.