Medicaid applicants in South Dakota, North Carolina, Michigan and Wisconsin have until Dec. 31 to file under the old rule that lets the program pay for medical bills from before the application date. After that, the look-back shrinks to as little as one month. Anyone with an unpaid hospital, nursing home or doctor bill from this fall is on a short clock.
The change comes from the 2025 federal law known as H.R. 1, and each state is writing it into its own program. The details differ by state and by who is applying, but the date is the same everywhere: Jan. 1, 2027.
What past-bill coverage means
Medicaid normally starts paying from the month a person applies. Retroactive coverage reaches back before that month. If the applicant met every Medicaid rule during those earlier months, the program pays approved bills from them, even though the application came later…