Millions of Americans enrolled in Medicaid face the prospect of losing coverage over the next decade, and the primary driver is not whether they hold a job. The Congressional Budget Office projects the 2025 reconciliation law will reduce Medicaid enrollment by 12.9 million people by 2034, with the bulk of those losses tied to more frequent paperwork requirements rather than new work mandates. The same federal forecast estimates the law will add 7.5 million people to the ranks of the uninsured.
Six-month redeterminations, not employment checks, drive the largest losses
The reconciliation law, enacted as P.L. 119-21, requires states to verify Medicaid eligibility every six months instead of annually. That change compresses the window enrollees have to respond to renewal notices, submit documents, and confirm their income. When people miss a deadline or fail to return a form, they lose coverage, even if they still qualify. The CBO’s long-term budget outlook projects a net reduction of 12.9 million in Medicaid enrollment by 2034 under the law’s baseline scenario, a figure that already subtracts roughly 1.5 million duplicate enrollees removed from state rolls.
Separate CBO analysis of work requirements found they would increase the number of uninsured without changing employment or hours worked among affected populations. That finding, drawn from a federal estimate of work rules, means the employment mandates in the law function mainly as an additional paperwork screen. People who already work but cannot document their hours, or who qualify for exemptions but do not complete the right forms, end up dropped from the program. The practical result is that administrative churn, not actual workforce participation, accounts for the larger share of projected coverage losses.
State-level data from the recent pandemic-era unwinding period illustrates the pattern. When states resumed normal Medicaid renewals after the public health emergency, millions were disenrolled for procedural reasons rather than because they earned too much or no longer met eligibility criteria. Monthly reports submitted to the Centers for Medicare and Medicaid Services showed that procedural terminations consistently outpaced those based on ineligibility in many states. The new law’s six-month cycle will repeat that dynamic on a permanent, accelerated schedule, giving enrollees twice as many chances each year to miss a notice or misplace a form.
Frequent redeterminations also magnify the consequences of minor life disruptions. A move, a change in phone number, or a missed piece of mail can trigger a loss of coverage. For low-wage workers with unstable schedules, parents juggling child care, and people with chronic conditions, the added administrative load can be difficult to manage. Even when individuals eventually re-enroll, gaps in coverage can interrupt medications, delay treatments, and saddle families with unexpected medical bills.
7.5 million more uninsured by 2034 and limited tools to stop it
The CBO’s official score of the Medicaid provisions in P.L. 119-21 concludes that the law’s combined effects will increase the uninsured population by 7.5 million in 2034 under its baseline scenario. That projection already assumes that some people who lose Medicaid will move to employer plans or marketplace coverage, so the 7.5 million figure reflects a net increase after those partial offsets. The same analysis confirms that the provisions reduce the federal deficit over the 2025 to 2034 window, framing the coverage reductions as a deliberate fiscal tradeoff rather than an unintended side effect.
Independent modeling from the Urban Institute, using its Health Insurance Policy Simulation Model, found that even under scenarios where states take active steps to limit disruption, administrative churn from more frequent redeterminations accounts for a larger share of coverage losses than work requirement enforcement. Researchers tested high, medium, and low mitigation approaches, including more robust outreach and streamlined reporting, and concluded that millions would lose coverage across all of them. In each case, the six-month renewal clock produced steady attrition as eligible people cycled on and off the rolls.
States retain some tools to blunt the impact, but their options are constrained by the statute’s core design. They can simplify forms, invest in call centers, and use data matches to confirm eligibility without requiring beneficiaries to respond. They can also coordinate with health plans, community organizations, and providers to help enrollees navigate renewals. Those steps may reduce avoidable losses at the margins, yet they do not change the underlying requirement that every adult and child prove eligibility twice a year.
For families, the stakes are concrete. Losing Medicaid, even temporarily, can mean postponing a child’s checkup, skipping a specialist visit, or facing full hospital charges after an emergency. For safety-net providers, higher uninsured rates translate into more uncompensated care and budget pressure. And for state governments, the law’s savings come with the risk of greater instability in coverage, particularly for people with the lowest incomes.
The CBO’s projections and the experience of the unwinding period point in the same direction: the reconciliation law’s biggest coverage effects stem from how often states must re-check eligibility, not from whether beneficiaries are working. As six-month redeterminations become the norm, millions of people who technically qualify for Medicaid are expected to fall through the cracks, reshaping the program less through changes in who is eligible than through how hard it is to stay enrolled.
