Enrollment
Special Enrollment Period Checklist
Documents and deadlines when a qualifying life event opens coverage.
Updated Jan 15, 20261 min read3 sources
Act inside the window
Most Marketplace SEPs last about 60 days from the event. Missing it can mean waiting until Open Enrollment.
Gather proof early: termination letter, marriage certificate, birth record, or lease/utility for a move.
Pick the right effective date
Coverage start dates depend on when you enroll within the SEP. Confirm whether you need coverage this month or next.
If Medicaid ended, apply immediately — do not assume automatic Marketplace enrollment.
Next step
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Questions
Frequently asked questions
Can I change plans for any reason during SEP?
No — SEPs are event-specific. Stick to the change the event allows.
What if my employer offers COBRA?
Compare COBRA cost to subsidized Marketplace plans before you decide.
Sources
- HealthCare.gov — the official ACA Health Insurance Marketplace · reviewed 2026-01-15
- KFF (Kaiser Family Foundation) — health policy research · reviewed 2026-01-15
- OLYRON HealthMatch editorial methodology — how we source and rate options · reviewed 2026-01-15