Medicaid Work Requirement Deadline Arrives December 31. States Must Start Notifying Enrollees Now.

States implementing Medicaid work requirements under the One Big Beautiful Bill Act must begin notifying enrollees by December 31, 2026. The mandatory compliance window starts January 1, 2027.

What You Should Know

The OBBBA, signed into law on July 4, 2025, requires that Medicaid enrollees ages 19 to 64 with incomes between 100 and 138 percent of the federal poverty level document that they are working, volunteering, or attending school for at least 80 hours per month to maintain their coverage, according to the Center for American Progress implementation timeline. The requirements become mandatory on January 1, 2027, but states choosing to implement early must notify enrollees before December 31, 2026, as the Department of Health and Human Services released its interim final rule on work reporting requirements.

Exemptions apply for pregnant or postpartum women, people with disabilities, caregivers of children under 14, and individuals in areas with unemployment above certain thresholds.

The System Under Pressure

The Congressional Budget Office projects that the OBBBA Medicaid changes will result in approximately 5.1 million more uninsured Americans by 2034, according to Behavioral Health Business reporting on the CBO estimate. The American Medical Association stated in July 2025 that the law would cause an estimated 11.8 million people to lose health care coverage overall.

The experience in Arkansas serves as the primary benchmark. Arkansas implemented a previous Medicaid work requirement pilot that resulted in 18,000 people losing coverage without meaningful employment gains, an outcome frequently cited by health policy researchers. The OBBBA also requires that eligibility checks for Medicaid expansion enrollees move to every six months instead of annually, beginning December 31, 2026, increasing the risk of coverage loss due to missed paperwork, particularly for seniors and people with limited internet or phone access.

The Receipts

The Center for American Progress published a detailed implementation timeline for all OBBBA provisions in November 2025, including the December 31 state notification deadline. The AMA’s analysis confirmed the work requirement details and the DHS interim final rule. The Pear Suite analysis of the OBBBA noted that beginning October 1, 2028, cost-sharing requirements will also apply to Medicaid members with income between 100 and 133 percent of the federal poverty level.

What Happens Next

Enrollees in states that have indicated intent to implement work requirements early should expect notification letters before December 31, 2026. Anyone who receives a notice and believes they qualify for an exemption should respond immediately and document their exemption. Community organizations and legal aid groups are already tracking state implementation plans. Coverage losses will not arrive all at once - they accumulate over years as redeterminations remove enrollees who cannot document compliance.

References: Center for American Progress, OBBBA Implementation Timeline | American Medical Association, Changes to Medicaid, the ACA, and Other Key Provisions of OBBBA | Pear Suite, Medicaid, SNAP, and the One Big Beautiful Bill Act Explained