1. Deadlines for 2019 coverage Enroll by December 15 for coverage starting January 1, 2019. Apply now. Note: Use this checklist to gather what you’ll need to complete your application (PDF). 2. Who is eligible to use the Marketplace? To be eligible to enroll in Marketplace health coverage, you must live in the United States, must be a U.S. citizen or national (or be lawfully present), and can't be incarcerated. Learn more. 3. Two kinds of coverage Depending on income, you may qualify for an insurance plan with tax credits or for Medicaid/Children's Health Insurance Program (CHIP) . See where your income falls. 4. What plans cover All plans cover essential health benefits , pre-existing conditions , and preventive services. 5. Plans & costs You can preview available plans and estimated prices based on income before logging in.