KFF April 22, 2021
As of April 2021, 12 states have not adopted the Affordable Care Act (ACA) provision to expand Medicaid to adults with incomes through 138% of poverty. In these states, 2.2 million uninsured people with incomes under poverty fall in the “coverage gap” and do not qualify for either Medicaid or premium subsidies in the ACA marketplace (See Appendix Table). An additional 1.8 million uninsured adults in these states are currently eligible for marketplace coverage (because their incomes are between 100% and 138% of poverty level) but would be eligible for Medicaid if their state expanded.
The federal government covers 90% of the cost of Medicaid coverage for adults covered through the ACA expansion, a higher share than it does for...