Medical Expense✓ Verified · outline & fact-checked · Sep 2026Difficulty 2/5
What is the difference between the Open Enrollment Period (OEP) and a Special Enrollment Period (SEP) in the individual health insurance market?
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Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
The Open Enrollment Period is the fixed annual window (typically November-January) during which anyone may enroll in or change marketplace coverage. A Special Enrollment Period lets people enroll outside that window when they experience a qualifying life event — marriage, birth of a child, loss of other coverage, or a move. Guaranteed issue applies during both windows.
Why the other options are wrong
- B) Both OEP and SEP are open to applicants generally; the distinction is timing and trigger, not applicant type.
- C) The OEP is a limited annual window, not year-round; SEPs follow qualifying events and last for a defined period.
- D) They are distinct concepts with different triggers and durations — the exam expects you to separate them.
Memory hook
OEP = the annual door opening. SEP = the side door that opens when life happens.