How to apply for Missouri Medicaid

Last verified: June 2026

How to apply for MO HealthNet in Missouri

The Missouri Department of Social Services Family Support Division (FSD) handles MO HealthNet applications. Per MO HealthNet's apply page, there are four ways to submit:

Who needs a supplemental form

Most applicants submit just the standard application form (IM-1SSL). However, you must also complete the Supplemental Form (IM-1ABDS) if any of the following apply to you or a household member:

• Age 65 or older
• Blind or disabled
• Receiving Social Security benefits (any type)
• Living in a nursing facility or other medical institution
• Have Medicare or VA healthcare coverage

This supplemental form is required because these categories use a different eligibility methodology (non-MAGI) with income and asset tests that differ from the standard MAGI-based MO HealthNet rules. The form is available at dssmanuals.mo.gov or at any FSD Resource Center.

How long MO HealthNet takes to process

Per the MO HealthNet Division's application page, Missouri processes most applications within 45 days under the federal standard at 42 CFR 435.912. If a disability determination is required, the timeline can extend to 90 days.

If you do not receive any notice from the Family Support Division within 45 days, contact your local FSD Resource Center. If approved, you will receive a MO HealthNet ID card and information about your coverage type in the mail.

What documents you'll need

Gather these before starting your application. Having them ready prevents delays caused by missing information requests, which can add weeks to the review.

• Proof of identity — driver's license, state ID, passport, or birth certificate
• Proof of residency in Missouri — utility bill, lease, or official mail with your address
• Social Security numbers for all household members applying
• Proof of income for the past 30 days — pay stubs, employer letter, or benefit award letters
• Tax filing information if self-employed — prior year return is typically acceptable
• Immigration documents if applicable — green card, visa, or I-94 arrival/departure record
• Health insurance information if you currently have coverage through an employer or other source

Not every document is required for every applicant. The application will specify what MO HealthNet (Missouri Medicaid) needs based on your household composition.

The application process, step by step

1. 1

   Gather your documents

   Collect proof of identity, residency, income, and household composition before you start. Having everything ready means you can complete the application in one sitting.

2. 2

   Submit the application

   Apply through your preferred method — online is fastest. The application asks about income, household size, citizenship status, and whether anyone in the household has other insurance. Answer completely to avoid requests for more information.

3. 3

   Respond to any follow-up requests

   MO HealthNet (Missouri Medicaid) may request additional documents or clarification. Respond promptly — delays in providing information can pause or restart the review clock.

4. 4

   Receive your eligibility notice

   The agency will send a written notice of approval or denial. If approved, the notice will state your coverage start date and what benefits you're eligible for.

What to expect after you apply

Under 42 CFR 435.912, states must process most Medicaid applications within 45 days of receipt. Applications based on disability take up to 90 days. If Missouri hasn't issued a decision by those deadlines, the agency must notify you in writing with the reason for delay.

Medicaid coverage typically starts on the first day of the month in which you applied, assuming you're determined eligible. In some cases — particularly for pregnant women — retroactive coverage going back up to three months may apply if you received qualifying medical services during that period.

Keep your contact information updated while your application is pending. A notice sent to an old address counts as received.

If your application is denied

A denial notice must state the specific reason and your right to appeal. You have the right to request a fair hearing — typically within 90 days of the denial notice — where you can present evidence and contest the decision before an impartial hearing officer.

Common denial reasons include income above the limit, failure to verify documents within the required timeframe, or a missing signature. Many denials can be resolved by reapplying with the correct documentation.