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Medicaid rehab coverage for substance use disorder could be significantly curtailed under a sweeping federal law that took effect in 2025. The changes are beginning to ripple through state programs, treatment providers, and the millions of low-income Americans who depend on Medicaid as their primary path to free or low-cost rehab.
The New Law
Signed into law on July 4, 2025, H.R. 1, known as the “One Big Beautiful Bill Act,” reduces federal Medicaid funding by roughly 15% — approximately $1 trillion — over 10 years. The Congressional Budget Office estimates that 12 million people will lose their Medicaid plans.
Medicaid accounts for nearly 25% of all U.S. spending on mental health and drug treatment options. The high number of enrollees makes Medicaid the largest payer of behavioral health services in the U.S. The lost funding raises the stakes for people seeking free rehabs especially high.
Key dates to remember:
- Starting January 1, 2026, enhanced federal matching funds that incentivized states to expand Medicaid under the Affordable Care Act sunset. The cut off potentially shifts more costs to states.
- By December 31, 2026, states must conduct Medicaid eligibility checks at least every six months rather than annually This requirement adds administrative burden that health policy experts warn could push eligible people off rolls.
- Beginning no later than December 31, 2026, most adults ages 19–64 enrolled through Medicaid expansion must document 80 hours per month of work, school, job training, or community service to maintain coverage.
Impacting Free Rehabs Everywhere
Minnesota’s experience illustrates the stakes. The North Star State features a wide range of inpatient centers and outpatient clinics, many of them low-cost for people of all backgrounds. However, about 212,000 Minnesotans are eligible for Medicaid benefits because of the ACA expansion. In 2021, 17% of them — 48,000+ people — received aid for substance misuse.
With expanded coverage came a decline in fatalities. Drug overdose deaths fell by nearly 27% in 2024, and many health officials linked that progress to improved access to care and effective treatment therapies.
Now, critics worry those gains could reverse. Nationally, advocates estimate the Medicaid cuts could lead to coverage losses for more than 1.6 million Medicaid enrollees with substance use disorders, reducing their access to treatment.
Qualifying for Free or Low-Cost Treatment
Not everyone on Medicaid will lose coverage. People with substance use disorders are explicitly exempt from the new work requirements, alongside those with disabling mental disorders, physical or developmental disabilities, and serious or complex medical conditions. Folks actively participating in programs run by nonprofit organizations or public community mental health centers are also exempt.
However, individuals who qualify for an exemption still need to do the paperwork. Health policy researchers warn that paperwork burdens alone can cause eligible people to lose coverage even when they meet the guidelines.
The Centers for Medicare and Medicaid Services released implementation guidance in June 2026 for the states. Those who find work may also qualify for private insurance or employer-run programs. The work requirements go into effect for most in January 2027.
The Case For and Against These Changes
Supporters of the law argue that restructuring Medicaid will make it more sustainable. Many Republican lawmakers contend that the changes will sustain the program for those who need it most and to eliminate waste and fraud. Accordingly, targeted work requirements address fiscal imbalances and rebuild public trust by realigning the program with its intended mission.
Critics dispute those claims. Leading national mental health and addiction organizations have urged Congress to make no further cuts to Medicaid or risk harming individuals who depend on lifesaving care. Separately, in January 2026, SAMHSA terminated hundreds of grants supporting mental health and drug treatment totaling approximately $2 billion; following bipartisan pushback, the funding was reinstated within 24 hours.
How to Access These Resources
If you or a loved one needs treatment and worries about losing Medicaid rehab coverage, take these steps before work requirements take full effect in early 2027:
- Check your exemption status. If you’re already in a treatment program, you may be automatically exempt from work requirements. Contact your state Medicaid office to confirm your exemption.
- Look for state-funded treatment. Many states maintain behavioral health funds and harm reduction programs specifically for people who are uninsured or underinsured. In Minnesota, for example, the Behavioral Health Fund supports individuals who may be Medicaid-eligible or who fall outside Medicaid’s coverage.
- Seek nonprofit and faith-based programs. Free rehabs operated by nonprofits or public community mental health centers are also among those recognized for the treatment exemption, meaning their clients may be better protected from coverage disruptions.
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