One Big Beautiful Bill shifts $800 billion in Medicaid costs to states

Medicaid is a joint federal-state program. The federal government typically pays 50 to 77 percent of each state's Medicaid costs, depending on the state's per-capita income — poorer states receive more federal support. The OBBBA reduced these matching rates for specific populations, particularly expansion adults covered under the Affordable Care Act, shifting a larger share of costs to states.

The OBBBA added work requirements for most Medicaid adults without disabilities or dependents. People covered under these categories must document at least 80 hours of work, job training, or community service per month. The CBO projected that many eligible people would lose coverage not because they don't work, but because of administrative burden: documentation requirements that many working poor people struggle to meet.

States' primary tools for drawing down federal Medicaid funds include provider taxes — fees charged to hospitals and nursing homes that states use to raise the state share of Medicaid, then collect matching federal dollars. The OBBBA capped states' ability to use this mechanism, cutting a major source of state Medicaid revenue that had grown significantly since 2010.

The Congressional Budget Office projected the OBBBA would result in 10.3 million people losing Medicaid coverage by 2034. About 7.2 million of those losses would come from the new work requirements and associated paperwork burdens, not from explicit eligibility changes. The remaining losses would result from reduced state capacity to fund the program.

Republican governors from Medicaid-dependent states — including Louisana's Jeff Landry, West Virginia's Patrick Morrisey, and Arkansas's Sarah Huckabee Sanders — privately raised concerns with Congressional leadership about the cuts' impact on their states. Most publicly supported the bill, creating a gap between stated support and privately acknowledged harm.

The federal-state structure of Medicaid means the cost shift plays out differently in each state

States with higher poverty rates receive more federal matching funds and depend more heavily on Medicaid

Those states — concentrated in the South and rural Midwest — face the largest per-capita funding gaps from the OBBBA Wealthier states like California and Massachusetts face smaller relative losses but larger absolute dollar shortfalls.

By early 2026, at least 14 states had initiated eligibility redetermination reviews — processes to re-verify whether current Medicaid recipients still qualify — that health policy analysts expected to result in significant disenrollment. The COVID pandemic had suspended routine redeterminations; the post-COVID unwinding had already disenrolled millions before the OBBBA further tightened eligibility.