Where to start: your state Medicaid office or healthcare.gov

You enroll in Medicaid through your state, not through a federal office. Each state runs its own program with its own rules, income limits, and application process. The fastest way to find your state's enrollment portal is to visit healthcare.gov and enter your state name — the site will direct you to your state Medicaid agency's enrollment page, or to a combined application that covers both Medicaid and marketplace insurance.

Some states use a single online application; others let you apply by mail, phone, or in person at a local office. A few states contract with third-party companies to process applications, so the website you land on may not say "State of [X]" at the top. That is normal. The key is that you are on your state's official enrollment system, not a private company's sales site.

If you do not have internet access or prefer to apply by phone, call your state Medicaid office directly. You can find the phone number on healthcare.gov or by searching "[your state] Medicaid phone number." Many states also accept applications at county health departments or community health centers.

Key Takeaways

  • You apply through your state Medicaid office, which you can find by entering your state name on healthcare.gov.
  • You will need proof of income (recent pay stubs, tax returns, or a letter from your employer), proof of citizenship or legal residency, and proof of your state residency.
  • Most states process applications within 30 days, though some take longer during high-volume periods.
  • If you are approved, coverage usually starts on the first day of the month after your application is processed, or sometimes retroactively to the month you applied.
  • You can apply any time of year; Medicaid does not have an open enrollment period like marketplace insurance does.

Documents you need before you apply

Have these items ready before you start your application. Missing documents will delay your approval, and some states will deny your application if you do not provide them within a set timeframe.

Proof of income: Recent pay stubs (usually the last two months), a letter from your employer stating your hourly wage or salary, or your most recent tax return. If you are self-employed, bring your tax return and a profit-and-loss statement. If you receive unemployment, Social Security, child support, or other income, bring the most recent statement or award letter showing the amount.

Proof of citizenship or legal residency: A birth certificate, passport, or naturalization papers. If you are a legal permanent resident, bring your green card or I-94 form. Some states accept a driver's license as proof of citizenship if it was issued after a certain date; check your state's requirements on its Medicaid website.

Proof of state residency: A utility bill, lease, mortgage statement, or bank statement with your current address. The document must be dated within the last 60 days in most states.

If you are applying on behalf of someone else — a child, a parent, or another family member — you will also need their Social Security number and date of birth. If you are applying for a child and you are not the parent, you may need a letter of guardianship or custody.

Walking through the online application

Most state applications ask for the same basic information in roughly the same order. You will enter your name, date of birth, Social Security number, and contact information. Then you will list your household members — everyone who lives with you and is claimed as a dependent on your taxes — and their income.

The application will ask whether you are a U.S. citizen or legal permanent resident. Answer honestly; lying on a Medicaid application can result in denial and, in rare cases, legal consequences. If you are not a citizen, some states still cover you under emergency Medicaid or limited programs; the application will tell you what you are may be able to access for based on your answer.

You will be asked about your current health insurance. If you have employer coverage, marketplace insurance, or Medicare, report it. Medicaid will coordinate with that coverage and may pay only what your other insurance does not cover.

At the end, you will upload or mail your documents. If you are applying online, you usually have a window of 10 to 30 days to submit proof. If you miss the deadline, your application may be denied, though you can reapply immediately.

What happens after you submit your application

Your state will send you a confirmation email or letter with an application number. Keep this number; you will need it to check your status or contact the agency with questions. Most states let you check your application status online using your application number and date of birth.

The state will review your income, household size, and citizenship status. If everything matches their records — for instance, if they can verify your income through the IRS or Social Security Administration — you may be approved without further contact. If something does not match or is unclear, they will send you a notice asking for more information. You usually have 10 to 30 days to respond.

Processing times vary by state. Some approve applications in two weeks; others take 30 to 45 days, especially during open enrollment season (November through January) or after a major policy change. A few states are slower. If you do not hear back within the timeframe your state publishes, call your Medicaid office to check the status.

When coverage starts and what you receive

If you are approved, your coverage usually begins on the first day of the month after your application is processed. Some states backdate coverage to the month you applied, which means they will cover medical bills from that earlier month. A few states cover the day you applied. Your approval notice will tell you your start date.

You will receive a Medicaid card in the mail within one to two weeks of approval. Some states send it immediately; others take longer. Until your physical card arrives, you can use your application number and date of birth at the doctor's office or pharmacy to prove you are covered. Many providers can also look you up in the state's system.

Your approval notice will also list any conditions on your coverage — for instance, whether you must choose a primary care doctor, whether you are in a managed care plan, or whether you have a work requirement. Read this section carefully, because not following these rules can result in loss of coverage.

If your application is denied

Your state will send you a written notice explaining why you were denied. Common reasons include income above the limit, failure to provide proof of citizenship or residency, or not meeting your state's other requirements (like age or disability status).

The notice will include information about how to appeal. You usually have 30 to 60 days to request a hearing, where you can present additional documents or explain your situation to a state official. You do not need a lawyer, though you can bring one. Many legal aid organizations offer free help with Medicaid appeals.

If your circumstances change — your income drops, you lose your job, or you move to a different state — you can reapply immediately. You do not have to wait for an open enrollment period.

Changes to report after you are enrolled

Once you have Medicaid, you must report certain changes to your state within 30 days. These include a change in income, a change in household size (a new baby, a family member moving in or out), a change in your address, or a change in your citizenship status. Failing to report changes can result in overpayment, which the state may ask you to repay, or loss of coverage.

Most states let you report changes online, by phone, or by mail. Your Medicaid card or approval notice will tell you how. Some states use a renewal form that you fill out once a year; others use "continuous enrollment," which means your coverage continues unless you ask to end it or your circumstances change significantly.

Frequently Asked Questions

Can I apply if I am not a U.S. citizen?

It depends on your immigration status and your state. Legal permanent residents (green card holders) can usually apply. Undocumented immigrants are not may be able to access for regular Medicaid in most states, but some states cover emergency medical care or pregnancy-related care regardless of status. Your state's application will tell you what you may have access to for based on your answer about citizenship.

How long does it take to get approved?

Most states aim to process applications within 30 days, but some take 45 days or longer, especially during busy seasons. A few states are faster. Your state's Medicaid website will tell you the current average processing time. If you do not hear back within that timeframe, call to check your status.

What if my income is above the limit but I have high medical bills?

Standard Medicaid has income limits that do not account for medical expenses. However, some states have programs for people with disabilities or chronic illnesses that allow higher income. A few states let you "spend down" by subtracting medical bills from your income to may have access to. Ask your state Medicaid office whether you are may be able to access for any of these options.

Can I apply for Medicaid and marketplace insurance at the same time?

Yes. If you are not yet approved for Medicaid, you can apply for marketplace insurance through healthcare.gov during open enrollment (November through January) or if you have a may have access to life event. If you are later approved for Medicaid, your marketplace coverage will end and Medicaid will take over. Some people use marketplace insurance as a bridge while waiting for Medicaid approval.

What if I move to a different state?

Your Medicaid coverage ends when you move. You must apply in your new state. Coverage does not transfer between states. Apply as soon as you arrive in your new state so there is no gap in coverage. Some states have faster processing times than others, so the wait may be different.