"Certain individuals without access to subsidized health insurance coverage may be eligible for premium tax credits, as established under the Patient Protection and Affordable Care Act (ACA; P.L. 111-148, as amended). The dollar amount of the premium credit varies from individual to individual, based on a formula specified in statute. Individuals who are eligible for the premium credit, however, generally are still required to contribute some amount toward the purchase of health insurance. In order to be eligible to receive premium tax credits, individuals must have annual household income at or above 100% of the federal poverty level (FPL) but not more than 400% FPL; not be eligible for certain types of health insurance coverage, with exceptions; file federal income tax returns; and enroll in a plan through an individual exchange. Exchanges are not insurance companies; rather, exchanges serve as marketplaces for the purchase of health insurance. They operate in every state and the District of Columbia (DC)."
CRS Report for Congress, R44425