The 2027 Medicaid Changes Under the One Big Beautiful Bill Act

Millions of people could lose Medicaid coverage over the next few years. Not because they stopped qualifying, but because of new paperwork: monthly work hours to report, eligibility checks twice a year, and less room to fix mistakes after the fact. The One Big Beautiful Bill Act (OBBBA), signed on July 4, 2025, made the biggest changes to Medicaid since the Affordable Care Act, and most of them take effect between late 2026 and 2028.

This post covers what changes, who’s affected, when each change starts, and what it means for the systems that run Medicaid.

Dates here come from the law as summarised by the National Association of Medicaid Directors. States implement these rules on their own timelines within federal deadlines, and some can get extensions, so always check your state’s guidance.

The timeline at a glance

Change	Who it applies to	Effective
One-year funding block for certain family planning providers	Large non-profit reproductive health providers	July 4, 2025 (challenged in court)
Work and community engagement requirements	Expansion adults aged 19–64	December 31, 2026 (extensions possible to the end of 2028)
Eligibility checks every six months	Expansion adults	December 31, 2026
Shorter retroactive coverage	All new applicants	Applications from January 1, 2027
Cost sharing up to $35 per service	Expansion adults above 100% of the federal poverty level	October 1, 2028
Provider tax phase-down	Expansion states	Starting in fiscal year 2028
$50 billion Rural Health Transformation Program	States, for rural providers	Fiscal years 2026–2030

“Expansion adults” means the adults who became eligible under the Affordable Care Act’s Medicaid expansion: working-age adults with incomes up to 138% of the federal poverty level, in states that expanded.

Work requirements: 80 hours a month

To keep coverage, expansion adults aged 19 to 64 must show 80 hours a month of qualifying activity:

• paid work;
• community service or volunteering;
• a work programme or job training;
• school, at least half time;
• or a mix of these that adds up to 80 hours.

Some people are exempt, including parents and caretakers of children aged 13 and under, people with disabilities or serious medical conditions, pregnant and postpartum people, and some others such as people in substance-use treatment. States must verify compliance, using data they already hold wherever possible, and can check before someone enrols as well as during coverage.

The federal deadline is December 31, 2026, though states can start earlier. A state that shows it’s making a good-faith effort can get an extension up to the end of 2028.

The flexibility is real: volunteering and school both count. The risk is mostly administrative. People who qualify but don’t report their hours, or whose reports don’t match state data, can still lose coverage.

Eligibility checks every six months

Until now, most Medicaid members renewed once a year. From December 31, 2026, states must redetermine eligibility for expansion adults every six months. Everyone else stays on yearly renewals.

More renewals mean more chances to drop off: a changed job, a raise that crosses the income line, a missed letter. Expect more churn, where people lose coverage and then re-enrol a few months later.

Less retroactive coverage

Retroactive coverage lets Medicaid pay for care from before someone applied, as long as they were eligible at the time. It exists so that people who apply after a hospital visit aren’t left with the bill.

For applications submitted from January 1, 2027, retroactive coverage shrinks from up to three months to:

• one month for expansion adults;
• two months for everyone else.

Some states had already shortened or waived retroactive coverage under waivers. For hospitals, this means less chance to get paid for uninsured patients who later enrol.

New copays

From October 1, 2028, states must charge cost sharing to expansion adults with incomes above 100% of the federal poverty level:

• up to $35 per service;
• total cost sharing capped at 5% of family income;
• some services exempt, including primary care, behavioral health, and care at community health centres and rural health clinics.

Provider taxes and rural hospitals

States raise part of their Medicaid funding through taxes on providers, and those taxes help pay for higher Medicaid rates. The law freezes existing provider taxes and, for expansion states, phases the main threshold down from 6% toward 3.5%, starting in fiscal year 2028.

Rural hospitals rely heavily on Medicaid, so less state money could mean lower payment rates for them. To soften that, the law created a $50 billion Rural Health Transformation Program for fiscal years 2026 to 2030. States apply for grants and must use them on approved activities. It’s a safety net, but analysts don’t expect it to fully offset the cuts, and not every provider will benefit.

Family planning providers

The law blocks Medicaid funding for one year, from July 4, 2025, to certain non-profit providers that mainly deliver reproductive health services and offer abortions, which in practice means Planned Parenthood. The provision was challenged in court within days of signing. Check the current status before relying on it.

What it means for systems

For anyone building or running Medicaid eligibility, enrollment and claims systems, this is a big change.

• Eligibility engines need new rules: work-hour verification, exemption tracking, six-month renewal cycles, and different retroactive windows by population.
• Data integrations grow: payroll and wage data, school enrollment, and other state data to verify activity without asking members for paperwork.
• Member notices have to be clearer and more frequent, or coverage loss will be driven by confusion.
• Providers should check eligibility at every visit. With six-month renewals, coverage can lapse between appointments.
• Claims and cost sharing: from October 2028, claims for expansion adults will carry new copays, with exemptions by service type.

Conclusion

OBBBA keeps Medicaid’s structure but changes who stays on it and how often they’re checked. Work requirements and six-month renewals start at the end of 2026, shorter retroactive coverage in 2027, and new copays in late 2028. The biggest risk is losing coverage over paperwork rather than eligibility.

Background on the program itself is in Medicaid and CHIP Explained.

Further watching

From the HealthTech Decoded channel:

• The 2027 Medicaid shakeup: who’s getting dropped by the Big Beautiful Act?
• Don’t miss these Medicaid changes (short)

References

• National Association of Medicaid Directors: OBBBA Medicaid Policy Timeline (PDF)
• ASTHO: One Big Beautiful Bill law summary
• Center for American Progress: When do the OBBBA health care provisions go into effect?

Where this fits

Level 1 · Foundations › Government programs

• Previous: Medicare vs Medicaid, and Dual-Eligible Members
• Next: Revenue Cycle Management (RCM) End to End