According to the Congressional Research Service, under the American Rescue Plan... " [Typically] calculating the EITC A taxpayer’s EITC is based on a formula that considers earned income, number of qualifying children, marital status, and adjusted gross income (AGI). Under this formula, the EITC increases in value as earned income increases up to a certain level. The EITC then remains at its maximum level over a subsequent range of earned income, before gradually decreasing in value over higher levels of [earned] income."
