Medicaid

Medicaid is the health coverage program established by Title XIX of the Social Security Act, at 42 U.S.C. 1396 and following, and funded jointly by the federal government and the states. The federal statute sets mandatory eligibility groups and mandatory benefits and permits a long list of optional ones; each state then designs and runs its own program within that frame, subject to federal approval of its state plan. That is why Medicaid is accurately described as fifty-odd different programs sharing one name, and why several states have given theirs a different name entirely.

It is not Medicare, and the two are confused constantly because the names rhyme. Medicare is a federal program whose eligibility turns on age, disability status and work record, and it is the same program in every state. Medicaid turns on income and, for some categories, assets, and its rules vary by state. Someone can qualify for both at once, which is common among older people with low incomes and is the arrangement that pays for a great deal of nursing home care in this country.

Mandatory and optional groups are the architecture. Federal law obliges every participating state to cover certain populations, including low-income children, pregnant women, certain parents and caretaker relatives, and people receiving Supplemental Security Income. Beyond that, states may cover optional groups and receive federal matching funds for doing so. The expansion group created by the Affordable Care Act sits at 42 U.S.C. 1396a(a)(10)(A)(i)(VIII), and its threshold is worth stating precisely because the familiar figure is computed rather than written: the subsection sets 133% of the poverty line, and section 1396a(e)(14)(I) then requires the state to disregard income equal to 5 percentage points of the poverty line, which is why the number everyone quotes is 138%. Cite both parts or neither. Adopting the expansion is a state decision, so two people with identical incomes in neighbouring states can get different answers, and that is the single largest source of variation in the program.

Children get a benefit no other program matches. Early and periodic screening, diagnostic and treatment services require states to cover medically necessary care for enrolled children, which is broader than a typical benefit package rather than a list of covered items.

🔑 Long-term care is where Medicaid matters most and is least understood. Medicaid.gov describes the program as the primary payer across the nation for long-term care services, covering both institutional care and home and community-based services. Medicare does not do this. It pays for a limited period of skilled nursing care following a qualifying hospital stay, which is rehabilitation rather than a placement, and nothing toward indefinite help with bathing, dressing, eating and similar daily activities. Qualifying for Medicaid long-term care usually involves spending down assets, and transfers made for less than fair market value are looked back on: the look-back date under 42 U.S.C. 1396p(c)(1)(B)(i) is 60 months before the application for any disposal made on or after 8 February 2006, with a resulting period of ineligibility rather than an outright bar.

🔴 Estate recovery is mandatory, and it reaches further than the probate estate in many states. Section 1396p(b)(1)(B) provides that where an individual was 55 or older when they received medical assistance, "the State shall seek adjustment or recovery from the individual's estate", limited to nursing facility services, home and community-based services and related hospital and prescription drug services, or at the state's option to any items or services under the plan. Recovery may be made only after the death of a surviving spouse, and only when there is no surviving child under 21 and no blind or disabled child, with further protection where a sibling or a caregiving adult child has been living in the home. States must also maintain a hardship waiver process.

⚠️ The definition of "estate" is the part that surprises families. Section 1396p(b)(4) requires the estate to include everything within the probate estate as the state defines it, and permits the state to go further, reaching "any other real and personal property and other assets in which the individual had any legal title or interest at the time of death ... including such assets conveyed to a survivor, heir, or assign of the deceased individual through joint tenancy, tenancy in common, survivorship, life estate, living trust, or other arrangement." So a plan built entirely around avoiding probate does not by itself avoid estate recovery, and whether it does depends on which definition the state adopted.

A set of changes is phasing in between 2026 and 2028, and the start dates vary by state. The July 2025 reconciliation statute, Public Law 119-21, made four that matter to individuals. Section 71119 requires states to impose a community engagement requirement, commonly called a work requirement, on many adults in the expansion group, "beginning not later than the first day of the first quarter that begins after December 31, 2026, or, at the option of the State ... such earlier date as the State may specify". The option to start early is in the statute itself, and several states have used it, so "starting in 2027" is already wrong for some residents. Section 71107 moves eligibility redeterminations for the expansion group to every six months for redeterminations scheduled on or after the same date. Section 71112 narrows retroactive coverage, to the month before the application month for the expansion group and the second month before for everyone else, for applications made on or after that date. And section 71120 requires states, from 1 October 2028, to impose cost sharing on expansion adults whose family income exceeds the poverty line, capped at $35 per item or service and, across the whole family, at 5% of family income, with primary care, mental health care, substance use disorder services and care at federally qualified health centres, community behavioural health clinics and rural health clinics excluded.

⚠️ The implementing rule is being litigated, and this page states its status with a date rather than asserting it is settled. The community engagement rule, CMS-2454-IFC, was published on 1 June 2026 and sets a requirement of 80 hours a month. A group of state attorneys general challenged it in the United States District Court for the District of Massachusetts on 29 June 2026 in Commonwealth of Massachusetts v. Oz, No. 1:26-cv-12962, principally over the rule's test for medical frailty. As at 29 July 2026 a motion for a preliminary injunction was pending and no injunction had been entered. Never take an agency's own page as proof that a recently challenged rule is in force; the court docket is the check.

1. You apply through your state, at any time of year. There is no enrollment window and no qualifying event requirement.

2. The state tests eligibility against the groups in its own plan, using income and, for some categories such as long-term care, assets.

3. Coverage begins, with a benefit package set by the state within the federal mandatory and optional lists, and cost sharing that is limited by federal rules.

4. Eligibility is redetermined periodically, and from the first quarter after 2026 that will be every six months for the expansion group.

5. For long-term care, transfers in the 60 months before the application are examined, and a transfer for less than fair market value produces a period of ineligibility.

6. After death, the state must seek recovery of long-term-care costs from the estate of someone who was 55 or older when they received the care, subject to the statutory protections.

A hypothetical, showing how estate recovery actually lands. Hazel enters a nursing home at 79. Her savings pay for the first fourteen months, and once they are gone Medicaid begins paying. She dies three years later. Her husband Alton is still living, and their adult son has a disability.

The state must seek recovery of what it paid for her nursing facility care, but not yet, and possibly not at all against those two protections. Recovery may be made only after Alton's death, and only at a time when there is no surviving child who is blind or permanently and totally disabled. Both conditions apply here, so nothing happens on Hazel's death.

Now change one fact. Suppose Alton died before Hazel and there is no qualifying child. The state will seek recovery. Whether it reaches the family home depends on something Hazel and her lawyer may never have considered: if the house was retitled into joint ownership with a daughter to keep it out of probate, that succeeds in avoiding probate and does not by itself avoid recovery, because federal law lets a state define "estate" to include assets passing by joint tenancy, survivorship, life estate or living trust. Which definition her state adopted decides the outcome, and the probate-avoidance plan does not.

Strengths

• It is the country's health-coverage floor, and for the populations it covers there is nothing beneath it.
• Cost sharing is tightly limited by federal rules, so out-of-pocket exposure is far smaller than on private coverage.
• It pays for long-term care, both institutional and home and community based, which no other broadly available coverage does.
• Children's coverage is unusually comprehensive, because the screening and treatment requirement is defined by medical necessity rather than by a list.
• Enrollment is open all year, so a household whose circumstances change is never told to wait until January.

Gaps and limits

• Eligibility, covered services, provider networks and even the program's name differ by state, so national guidance is unusually likely to be wrong where you live.
• Provider participation is uneven, and finding a clinician who accepts Medicaid is a real constraint in some specialties and some areas.
• Estate recovery is mandatory for long-term-care costs, and in some states reaches assets that never enter probate.
• Qualifying for long-term-care coverage generally means spending down assets, and transfers within the look-back period create ineligibility rather than simply being ignored.
• A significant set of changes phases in between 2026 and 2028, on dates that vary by state, and parts of the implementing rule are in litigation.