A sweeping change to Medicaid eligibility is moving from federal law into state implementation as officials prepare for new work reporting rules tied to coverage. The change centers on a nationwide requirement for many adults in Medicaid expansion programs to document work or other qualifying activity. Analysts say the policy could lead to one of the largest coverage losses in the program’s recent history.
Federal law sets up broad Medicaid work requirement
President Donald Trump signed the 2025 reconciliation law on July 4, 2025, and the measure requires many adults in Medicaid expansion coverage to meet work rules as a condition of eligibility, according to KFF’s tracking of the law and federal implementation. CMS later said in an interim final rule issued June 1, 2026, that affected adults generally must complete 80 hours a month of work, school, job training, community service, or other qualifying activity.
The scale of the projected coverage loss is substantial. KFF said earlier Congressional Budget Office analysis of the House-passed version of the law estimated federal Medicaid coverage would fall by about 5.2 million adults by 2034 because of the work requirement provision, with 4.8 million more people becoming uninsured. Urban Institute researchers separately estimated that about 5 million expansion adults could lose Medicaid in 2026 under a similar federal work requirement.
Those estimates do not mean every person losing Medicaid is unemployed. KFF and other health policy researchers have said many affected adults already work or qualify for exemptions, but still risk losing coverage because of reporting, verification, or renewal barriers. That distinction has become central to the debate as states begin building systems to enforce the new rules.
The new requirement is national in scope but does not hit every state equally. KFF reported that the 2025 law applies in 44 states, including Washington, D.C., covering states with Affordable Care Act Medicaid expansion populations and certain waiver programs. CMS said states must implement the requirement beginning January 1, 2027, unless they choose an earlier start date allowed under federal policy.
What that means for residents will depend on where they live and how state Medicaid agencies design exemptions, reporting systems, and compliance checks. State officials surveyed by KFF Health News said they were still working through those choices this year, including whether enrollees can verify hours through existing benefit databases or will need to submit added paperwork. In several states, those details were not yet final as of the most recent public reporting.
A full state-by-state count of how many people could lose coverage under the final law has not been publicly released by CBO. Researchers at Urban Institute said coverage losses are likely to vary by state because of differences in expansion enrollment, wages, eligibility rules for parents, and administrative capacity. That means the precise local impact remains uncertain even as the national estimate of roughly 5 million continues to shape the conversation.
The core reason analysts expect large losses is not a projected surge in people refusing to work. CBO previously found Medicaid work requirements would lower federal spending and raise the number of uninsured people, while producing little or no meaningful increase in employment. KFF said that earlier CBO analysis, along with evidence from Arkansas, showed many people lost coverage because they were unaware of the rules or could not navigate the reporting process.
Federal officials have presented the policy differently. CMS said the new framework is intended to connect coverage to work, education, and community engagement, and cited an HHS study that said the policy could reduce poverty under certain conditions. But independent policy groups have continued to warn that administrative friction, not just work status, is likely to determine who keeps coverage.
For residents, the practical timeline is clearer than the ultimate impact. CMS said the nationwide requirement must be in place by January 1, 2027, and some states may move sooner. Until states publish final procedures, exemptions, and reporting methods, many enrollees still do not know exactly what documentation they may need to keep their Medicaid coverage.