Special Enrollment Period Checklist
Documents and deadlines when a qualifying life event opens coverage.
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.
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
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