Starting in 2027 Medicaid will cover just one month of past medical bills instead of three
By Tyler Foster,
Starting with Medicaid applications filed on or after January 1, 2027, adults enrolled through the Affordable Care Act’s Medicaid expansion group will be able to get retroactive coverage for only the single month before they applied, down from the three months Medicaid has covered for decades. Most other Medicaid enrollees, including people 65 and older and people with disabilities, will see that same three-month window cut to two months instead. The change comes from the 2025 federal tax and spending law, and it shifts more of the cost of care received just before a Medicaid application onto patients and hospitals.
Medicaid has offered up to three months of retroactive coverage since 1972, when the Senate Finance Committee said the protection was meant to help people who were eligible for Medicaid but had not yet applied when they received care, whether because they did not know the rules or because a sudden illness made applying impossible. Under Section 71112 of the 2025 tax and spending law, that three-month window shrinks starting with applications filed in January 2027, according to CMS guidance sent to state Medicaid directors.
The cut lands hardest on Medicaid expansion adults, the group covered under the Affordable Care Act’s expansion of Medicaid eligibility to low-income adults under 65, who will be limited to just one month of retroactive coverage before their application date. Every other Medicaid population, including seniors, people with disabilities and children, will see the retroactive window cut from three months to two, a smaller but still meaningful reduction, according to Justice in Aging’s analysis
