Gather your documents, enter your information, choose a plan, review your selection, and submit your application.
The open enrollment period is typically the primary window for individuals to sign up for or make changes to their health insurance plans. In Missouri, this period usually runs from November 1 to December 15 each year. This annual event allows residents to secure or adjust their health coverage for the upcoming year.
However, life is unpredictable, and certain life events, such as marriage, the birth of a child, or the loss of other health coverage can qualify you for a special enrollment period outside the standard timeframe. Such flexibility allows obtaining necessary coverage without waiting for the next open enrollment period.

Eligibility Criteria
Eligibility for Marketplace coverage largely depends on factors such as household size, income level, and residency within Missouri. The expansion of Medicaid in Missouri has also broadened the eligibility criteria, allowing more low-income adults to qualify for health coverage under MO HealthNet. This initiative is particularly beneficial for those who are uninsured or need financial assistance with medical costs.
Financial support options, including premium tax credits and cost-sharing reductions, are available to make health insurance more accessible. These aids are determined based on the applicant’s estimated yearly income relative to the federal poverty level. Meeting these criteria and providing the necessary documentation can significantly aid in securing affordable health insurance.
Required Documentation
When applying for health insurance through the Marketplace, you will need to provide several key documents. These include Social Security numbers for all applicants, proof of income such as pay stubs or tax returns, and information about your household. Submitting these documents on time is essential to maintaining your coverage.
After receiving an eligibility notice, you typically have at least 90 days to submit the required documents. Failing to do so within this period may jeopardize your health insurance coverage, making timely and accurate submission crucial.