Individual Health Insurance Plans Open Enrollment: Every State’s Dates in One Table
Open enrollment is the one hard deadline on the individual health insurance calendar — miss it without a qualifying life event, and you’re generally locked out until next year. Search your state below for its exact 2027 open enrollment window and a direct link to where you actually enroll.
Last verified: July 26, 2026 · Sourced from each state exchange’s own published guidance
Showing 51 of 51 states
| State ↕ | Exchange type ↕ | Starts ↕ | Ends | Enroll here |
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Individual Health Insurance Plans Open Enrollment: The Short Version
Open enrollment is the annual window when anyone can sign up for, switch, or drop an individual health insurance plan without needing a qualifying life event. For 2027 coverage, it starts November 1, 2026 almost everywhere — the only states starting earlier are Idaho and Pennsylvania (October 15) and Massachusetts (October 23). Outside this window, you generally need a special enrollment period triggered by something like losing other coverage, marriage, or having a baby.
The end date is the part that varies by state, and this year it’s genuinely unsettled at the federal level. A 2025 rule would have capped open enrollment at December 15 in states using healthcare.gov, and December 31 in states running their own exchange — but a federal court vacated that rule in June 2026. Several state-run exchanges have already announced they’re reverting to a January 15 or January 31 deadline; others are holding at their shorter, pre-litigation date; a handful haven’t said yet. That’s exactly why the table above links to each state’s own site instead of repeating a single national date.
What “individual health insurance plans open enrollment” actually means for your coverage date
When you enroll matters, not just whether you enroll before the deadline. In most states, if you pick a plan by December 15, coverage starts January 1. Enroll later — up to your state’s final deadline — and coverage typically starts February 1 instead. Enrolling in the first half of the window is the simplest way to guarantee no gap in coverage on January 1.
Who doesn’t have to wait for open enrollment
Two groups can enroll in an individual health insurance plan any time of year: anyone who qualifies for Medicaid or CHIP based on income, and anyone who experiences a qualifying life event — job loss, marriage, divorce, a new baby, or a permanent move — which opens a 60-day special enrollment period. Outside of those two paths, the dates in the table above are the only door.
State-run exchanges vs. healthcare.gov: why it changes your deadline
21 states plus D.C. run a fully state-based marketplace, which gives them the flexibility to set their own open enrollment schedule, independent of federal rulemaking. That’s why California can run through January 31 while a healthcare.gov state is capped at whatever the federal deadline ends up being this cycle. Three more states — Arkansas, Oregon, and Oklahoma — brand their own exchange but still enroll people through healthcare.gov’s system, so their timeline follows the federal schedule regardless of the state branding on the login page. The remaining 27 states use healthcare.gov entirely, with no state-level override available.
Frequently Asked Questions About Individual Health Insurance Plans Open Enrollment
When does individual health insurance plans open enrollment start for 2027 coverage?
November 1, 2026 in every state except Idaho and Pennsylvania (October 15) and Massachusetts (October 23).
When does open enrollment end?
It depends entirely on your state — anywhere from December 15 to January 31 for 2027 coverage — and several states haven’t finalized their date yet due to ongoing litigation over the federal enrollment rule. Use the table above and click through to your state’s official site to confirm.
What happens if I miss open enrollment?
You generally can’t buy a subsidized individual health insurance plan until the next open enrollment period, unless you qualify for a special enrollment period through a qualifying life event, or you’re eligible for Medicaid or CHIP, both of which enroll year-round.
Can I change plans mid-year without a qualifying life event?
No. Outside open enrollment, changing your individual health insurance plan requires a special enrollment period, which is only triggered by specific life events like losing other coverage, marriage, divorce, having a baby, or a permanent move.
Does my enrollment date affect when coverage starts?
Yes. In most states, enrolling by mid-December gets you a January 1 start date; enrolling later in the window typically pushes your effective date to February 1.
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