Medicaid expansion is when a state chooses to cover more adults, usually those earning up to 138% of the federal poverty line

Medicaid expansion is a state decision, not a federal one. Under the Affordable Care Act, states can choose to extend Medicaid to adults who earn more than the traditional income limits but still fall below a certain threshold. In expansion states, a single adult earning around $18,000 per year (the exact amount changes yearly) can get coverage. In non-expansion states, that same person may have no path to Medicaid at all.

Whether you live in an expansion state or not changes what coverage options exist for you. This matters because it affects your out-of-pocket costs, whether you can get coverage at all, and what programs you might turn to instead.

Key Takeaways

  • Expansion states cover adults earning up to roughly 138% of the federal poverty line; non-expansion states use their own, often much lower income limits.
  • Your state's choice is permanent unless it changes its law, so your coverage options depend on where you live.
  • In non-expansion states, people earning too much for traditional Medicaid but too little for marketplace subsidies may have no low-cost coverage option.
  • Expansion status does not change may be able to access for children, pregnant people, or disabled people — those groups have separate income rules in every state.

How expansion changed Medicaid income limits

Before the Affordable Care Act, states set their own Medicaid income limits, and most were very low — often around 50% of the federal poverty line for adults without children. That meant a single adult earning $7,000 per year might not may have access to. The law offered states federal funding to raise that limit to 138% of poverty, making coverage available to millions more people.

States could choose to take the offer or not. As of now, most states have adopted expansion, but some have not. The states that have not expanded Medicaid are: Alabama, Florida, Georgia, Idaho, Kansas, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Wisconsin, and Wyoming. This list can change if a state votes to expand.

The income threshold itself is adjusted every year based on the federal poverty line. In 2024, 138% of the poverty line for a single adult is roughly $18,735 per year, but this number shifts annually. Your state's Medicaid program website will show the current year's limit.

The coverage gap in non-expansion states

In states that have not expanded Medicaid, there is a gap: people who earn too much for traditional Medicaid but too little to get tax credits on the health insurance marketplace have almost no low-cost options. A single adult in Texas earning $12,000 per year, for example, would not may have access to for Medicaid (the limit is much lower) and would not may have access to for marketplace subsidies (which start at 100% of poverty). That person would have to pay full price for marketplace coverage or go uninsured.

This gap does not affect everyone equally. Parents, children, pregnant people, and disabled people have separate income rules in every state, including non-expansion states. The gap mainly affects childless adults and some parents whose income is above their state's traditional Medicaid limit but below the expansion threshold.

If you live in a non-expansion state and think you might fall into this gap, the marketplace website (healthcare.gov) can show you what subsidies you may have access to for based on your actual income. Sometimes people discover they may have access to for more help than they expected.

How expansion affects your actual coverage

If you live in an expansion state and your income falls within the expansion range, you get the same Medicaid benefits as anyone else on the program: doctor visits, hospital care, prescription drugs, and preventive services with no copay. Your coverage does not change based on whether you are in the "expansion" group or the traditional group — Medicaid is Medicaid once you are enrolled.

The main difference is that expansion made it possible for you to get on Medicaid in the first place. Without expansion, your income would have disqualified you. Some expansion states also use Medicaid to cover people transitioning off disability benefits or aging out of foster care, which is another way expansion broadens who can get coverage.

In non-expansion states, if you do not fit into one of the traditional categories (child, parent, pregnant, disabled, elderly), you may have no Medicaid option regardless of income. You would need to look at marketplace coverage, employer plans, or other programs.

When expansion status matters most

Expansion status matters most if you are a childless adult or a parent whose income is between your state's traditional Medicaid limit and 138% of poverty. It also matters if you are planning to move states, because your coverage options will change. Someone who qualifies for Medicaid in California might not may have access to in Texas.

Expansion status also affects how states handle certain transitions. In expansion states, people who lose income and drop below the expansion threshold can stay on Medicaid. In non-expansion states, the same person might have no coverage option at all once they fall below the traditional limit.

If you are on Medicaid now and your state is considering expansion or contraction, your coverage would not end immediately. States must give people notice and a chance to find other coverage before removing them from the program.

How to learn about your state has expanded

The simplest way is to visit your state's Medicaid website directly. Search "[your state] Medicaid expansion" or go to your state health department's site and look for income limits. The site will show you the current threshold and whether your income falls within it.

You can also call your state Medicaid office or visit healthcare.gov, which has a state-by-state breakdown. If you are unsure whether you may have access to, you can start an application on your state's Medicaid site — you do not have to complete it, and starting does not lock you into anything.

Your income is not the only factor in Medicaid may be able to access. Citizenship status, residency, and other rules vary by state. The application process will ask about all of these, and the state will tell you whether you may have access to based on your specific situation.

Frequently Asked Questions

If my state expands Medicaid, will I automatically get coverage?

No. Expansion means you become may be able to access, but you still have to apply. You can apply through your state's Medicaid website, by mail, by phone, or in person at a local office. The state will review your application and tell you whether you may have access to based on income and other factors.

Can a state take away Medicaid expansion once it has it?

Yes, but it is rare. A state can vote to end expansion, though it must follow federal rules about giving people time to find other coverage. Most states that have expanded have kept it, even when leadership changes. If your state contracts expansion, you would receive notice before losing coverage.

Does Medicaid expansion cover the same things as regular Medicaid?

Yes. Once you are on Medicaid, the benefits are the same whether you may have access to through expansion or through a traditional category like disability or parenthood. You get the same doctor visits, hospital care, and prescription coverage.

What if I earn just above the expansion limit in my state?

You would not may have access to for Medicaid, but you might may have access to for marketplace subsidies. Visit healthcare.gov and enter your income to see what tax credits you could receive toward a marketplace plan. Some people earning slightly above Medicaid limits get substantial help on the marketplace.

Does expansion affect Medicare or other programs?

No. Medicaid expansion is separate from Medicare, which is for people 65 and older or with certain disabilities. Expansion also does not change may be able to access for other programs like SNAP or housing assistance. Each program has its own income rules.