ACA, Special
Enrollment,
and Renewal
Dates Calendar
ACA, Special Enrollment, and Renewal Dates Calendar
This calendar highlights the most important dates for ACA Open Enrollment, Special Enrollment Periods (SEP), and Renewal Deadlines. Use this as a guide to ensure you and your family never miss an opportunity to stay protected.
Key Dates & Windows (2026–2027)
| Period / Event | When It Applies | Key Deadlines & Notes |
|---|---|---|
| Open Enrollment / Renewal (ACA Marketplace) | For coverage effective in 2026 | November 1, 2026 – January 15, 2027 (most states) |
| Deadline for January 1, 2027 Effective Date | To secure full‑year coverage for 2026 | Enroll by December 15, 2026 (midnight) |
| Late Enrollment (coverage starts Feb 1) | After December 15 but before Jan 15 | Plans selected Dec 16 – Jan 15 will start Feb 1 |
| Automatic Re‑Enrollment | For existing Marketplace plan holders | If you don’t act, you may be auto‑re‑enrolled. To change plans, act by December 15. |
| Special Enrollment Period (SEP) | When a qualifying life event occurs | Generally 60 days (some cases 90 days) before/after event |
| Qualifying Life Events | Situations that trigger SEP | Examples: losing Medicaid/other coverage, job loss, marriage, birth, moving, turning 26 |
State Marketplace Deadlines
| State | Enrollment window | Decide-by date for Jan 1 start | Marketplace name + official link |
|---|---|---|---|
| N/A | N/A | N/A | N/A |
How the Timeline Works
- Open Enrollment opens: November 1, 2026 (Welcome to the Health Insurance Marketplace® states).
- Deadline for a January 1, 2027 start: December 15, 2026. Under new federal rules, December 15 may also be the final day to enroll; the exact end date was still being decided in court as of this update, so treat December 15 as your deadline.
- Automatic re-enrollment: If you take no action you may be re-enrolled, but review your plan by December 15; prices and savings are recalculated every year.
- Special Enrollment Period (SEP): Qualifying life events (losing Medicaid or other coverage, job loss, marriage, birth, moving, turning 26) generally open a 60-day window any time of year.
- State-run marketplaces: State-run marketplaces set their own calendars; under the new rules they may extend only to December 31, 2026. Check your state marketplace's site.
- Dates last verified: August 6, 2026
Don’t wait until the last minute, stay ahead of deadlines and protect your health and family today. Madrinas Insurance is here to guide you through Open Enrollment, Special Enrollment, and Renewals so you never miss an opportunity for affordable coverage.
Call us now or schedule your FREE consultation online. Your Madrina’s Advisor are ready to guide you with care, clarity, and commitment.
