Open Enrollment (ACA)

Open Enrollment: Full Definition

ACA Open Enrollment is the annual window during which consumers can enroll in or change individual Marketplace health coverage without a qualifying life event. On the federal Marketplace (HealthCare.gov), ACA OEP runs November 1 through January 15; enrollments completed by December 15 take effect January 1, and enrollments between December 16 and January 15 take effect February 1. State-based exchanges set their own windows — California, New York, New Jersey, Massachusetts, Rhode Island, and D.C. typically extend through January 31 or later. Outside OEP, consumers can only enroll with a Special Enrollment Period. ACA OEP is the ACA equivalent of Medicare AEP and generates similar lead-pricing spikes.

Related Terms

• ACA (Affordable Care Act) / Marketplace — U.S. federal law (2010) that created the individual health insurance marketplace, premium subsidies, and the open enrollment framework for under-65 major medical.
• SEP (Special Enrollment Period) — A year-round enrollment window triggered by qualifying life events — loss of coverage, move, marriage, income change — that allows enrollment outside OEP.
• AEP (Annual Enrollment Period) — The October 15 – December 7 annual window during which Medicare beneficiaries can enroll in, switch, or drop Medicare Advantage and Part D plans.
• Under-65 Health Insurance — Health insurance for consumers not yet Medicare-eligible — primarily ACA marketplace plans, short-term medical, and indemnity products.

Where This Applies on InsureLeads

• Medicare Leads
• Medicare OEP Leads
• ACA Open Enrollment Leads
• T65 Leads