Updated for the 2027 plan year (October 2026). Windows and effective dates reflect federal HealthCare.gov rules; a few state exchanges set their own variations.
What is a Special Enrollment Period?
A Special Enrollment Period is a window outside the yearly Open Enrollment when you can enroll in or switch a Marketplace plan because a qualifying life event changed your circumstances. Most SEPs last 60 days from the date of the event, and some let you enroll in the 60 days before a loss of coverage too. Open Enrollment for 2027 coverage runs November 1, 2026 – January 15, 2027 on HealthCare.gov, so an SEP is the main way to get covered in 2027 after January 15 when regular enrollment has closed.
The idea is simple and fair: life does not wait for a calendar. If you lose your job-based plan in March or welcome a baby in July, you should not have to go uninsured until next November. An SEP opens the full Health Insurance Marketplace back up for you — same plans, same subsidy rules, same protections for pre-existing conditions — triggered by a specific event rather than the time of year. You can confirm current rules any time at HealthCare.gov.
The catch is the clock. Unlike Open Enrollment, which is published months ahead, your special enrollment period starts the moment your qualifying event happens and is gone 60 days later. There is no grace period for missing it, so the single most important thing to know is this: act fast, and gather proof of your event early.
Qualifying life events that open a Special Enrollment Period
A qualifying life event is a major change the Marketplace recognizes as a valid reason to enroll off-cycle. They fall into a few broad buckets: losing coverage, changes to your household, changes in where you live, and changes in eligibility such as citizenship. The table below maps the most common events to the window you get and when coverage typically starts.
| Qualifying life event | Your SEP window | When coverage typically starts |
|---|---|---|
| Losing job-based coverage (quit, laid off, or hours cut) | 60 days before and 60 days after the loss | First of the month after you enroll |
| Losing Medicaid or CHIP eligibility | 60 days before and 90 days after the loss | First of the month after you enroll |
| Aging off a parent’s plan at 26 | 60 days before and 60 days after you turn 26 | First of the month after you enroll |
| Getting married | 60 days after the marriage | First of the month after you enroll |
| Having a baby, adopting, or foster placement | 60 days after the event | Day of the birth, adoption, or placement |
| Permanent move to a new area with different plans | 60 days after the move | First of the month after you enroll |
| Divorce or legal separation that ends your coverage | 60 days after you lose coverage | First of the month after you enroll |
| Gaining citizenship or lawfully present status | 60 days after the change | First of the month after you enroll |
A few events get special treatment. A new baby, adoption, or foster placement lets coverage start retroactively on the day of the event, so your child is covered from birth. Losing Medicaid or CHIP carries a longer 90-day window after the loss. And some losses, like a job ending, let you pick a plan up to 60 days before the coverage ends so you avoid any gap. The federal rules and effective-date details are published by the Centers for Medicare & Medicaid Services at CMS.gov.
What does NOT qualify for a Special Enrollment Period
Not every change in your coverage opens a special enrollment period. The Marketplace draws a clear line between losing coverage for reasons outside your control and simply choosing to go without it. Knowing the difference saves you from counting on a window that will not open.
These situations generally do not trigger a Special Enrollment Period:
- Voluntarily dropping coverage. Canceling a plan you still qualified for is not a qualifying event. Only an involuntary loss counts.
- Losing coverage for not paying your premium. If your plan is terminated because you missed payments, that is not a qualifying loss.
- A short-term or limited plan ending. Short-term medical and other plans that are not ACA-compliant do not count as minimum essential coverage, so losing one does not open an SEP.
- Choosing to end COBRA early. Dropping COBRA before it runs out voluntarily is not qualifying — but COBRA running out is.
The common thread is control. An SEP exists for changes you did not choose or that fundamentally reshape your household. If you simply decide you no longer want your current plan, that decision waits for Open Enrollment. One important exception: if your income drops enough to newly qualify you for a premium tax credit, or changes your eligibility for cost-sharing reductions, that can open an SEP even without a coverage loss.
How to enroll during a Special Enrollment Period
Enrolling through a special enrollment period works much like Open Enrollment, with one added step: you confirm the qualifying event and may need to prove it. Most people finish in under 30 minutes once their documents are ready. Because the 60-day clock is unforgiving, start as soon as the event happens.
- Report your life event at HealthCare.gov or your state exchange, and enter the date it happened so the system can open your window.
- Update your application with your new household size, your estimated 2027 income, and your current address.
- Review your subsidy — the Marketplace instantly estimates your premium tax credit and any cost-sharing reductions.
- Compare plans by metal tier, monthly premium, deductible, provider network, and drug coverage, then choose one.
- Submit any documents the Marketplace requests to confirm your event, and pay your first premium so coverage activates on the effective date.
If you are unsure which event applies or how to document it, unbiased help is free — Marketplace prices are set by law and identical whether you enroll alone or with an agent. See how Honesty.AI works for a guided, pressure-free comparison that handles the event reporting for you.
Honesty.AI checks your event, applies your subsidy, compares every 2027 plan, and enrolls you before your 60 days run out.
Documents you’ll need to confirm your event
The Marketplace often asks for proof of your qualifying event before coverage starts, so gather the right paperwork early. The exact document depends on which event opened your SEP, but each one is usually a single official record you already have or can request quickly.
- Loss of coverage: a letter from your employer or insurer showing the coverage end date, a COBRA election notice, or a Medicaid/CHIP denial or termination letter.
- Marriage: a marriage certificate or license.
- New baby or adoption: a birth certificate, adoption record, or foster-placement letter.
- Permanent move: a lease, mortgage statement, or utility bill showing your old and new addresses, plus proof you had coverage before the move.
- Citizenship or immigration status: a naturalization certificate or immigration document showing the status change.
You will also need the basics every application requires: Social Security numbers for everyone enrolling, your best estimate of 2027 household income, and a list of your doctors and prescriptions so you can check each plan’s network. Submit requested documents promptly — coverage can be delayed until the Marketplace verifies your event. For how premium tax credits are calculated on your return, see the IRS guidance at IRS.gov.
Lost your job? COBRA vs a Marketplace plan
Losing job-based coverage is the most common SEP trigger, and it usually gives you two paths: continue your old plan through COBRA, or enroll in a new Marketplace plan with a subsidy. Both are valid, but they often cost very different amounts.
COBRA lets you keep your exact employer plan — same network, same doctors — for up to 18 months. The catch is price: you pay the full premium plus a small admin fee, with no employer contribution, which often means several hundred dollars a month per person. A Marketplace plan, by contrast, may qualify for a premium tax credit based on your now-lower income, and many people between jobs find a plan far cheaper than COBRA once the subsidy applies.
Losing job-based coverage opens a 60-day SEP, and importantly, choosing not to elect COBRA does not close that window — you can skip COBRA entirely and go straight to the Marketplace. You can also switch from COBRA to a Marketplace plan when your COBRA runs out, which is itself a qualifying event. The key is comparing total cost, not just premiums: weigh the subsidy, deductible, and whether your doctors are in-network. Our guide to affordable health insurance options walks through the trade-offs.
Self-employed and between-jobs coverage options
If you are self-employed, freelancing, or between jobs, the Marketplace is built for you — there is no employer plan to fall back on, so an individual plan is the standard route. A qualifying life event still opens a special enrollment period the same way it does for anyone else, and a drop in self-employment income can itself qualify you for a larger subsidy.
Self-employed shoppers should estimate 2027 income carefully, since your premium tax credit rides on that number. Estimate conservatively and update the Marketplace mid-year if your income changes, so you are not surprised at tax time. Because subsidy rules tightened — the enhanced credits expired December 31, 2025, and the 400% federal-poverty-level cliff applies again for 2027 coverage — running a fresh comparison matters more than ever. Learn the details in our guide to 2027 subsidies and the premium tax credit, and if you are weighing a short-term stopgap, know it will not count as minimum essential coverage.
For many between-jobs and self-employed people, the math favors a subsidized Marketplace plan over COBRA or going bare. The independent analysts at KFF track how these subsidy changes ripple through premiums, and the practical takeaway is to compare every option before your 60-day window closes.
A life change shouldn’t mean a coverage gap
Honesty.AI confirms your qualifying event, applies your 2027 subsidy, compares every Marketplace plan, and enrolls you before your Special Enrollment Period ends — free, unbiased, and available 24/7 by chat, voice, or text.
Turning 26 and losing a parent’s plan is a qualifying life event; see health insurance for young adults for the steps to take before your coverage ends.
Newly gaining an ICHRA or QSEHRA from an employer also opens a Special Enrollment Period, and you can pick a plan up to 60 days before it starts.
Getting married opens a 60-day Special Enrollment Period if at least one spouse had coverage in the 60 days before the wedding; our guide to health insurance for married couples explains the rest.
Frequently asked questions
How long is a Special Enrollment Period?
Most Special Enrollment Periods last 60 days, usually counted from the date of your qualifying life event. Some events let you enroll in the 60 days before coverage ends too, and losing Medicaid or CHIP gives a longer 90-day window after the loss.
What counts as a qualifying life event?
Losing job-based coverage, losing Medicaid or CHIP, getting married, having or adopting a baby, moving permanently to a new area, aging off a parent’s plan at 26, divorce that ends your coverage, and gaining citizenship or lawful status all qualify. A big income change can also open a window.
Does quitting my job qualify me for a Special Enrollment Period?
Yes. Losing job-based coverage opens a 60-day SEP whether you quit, were laid off, or had your hours cut. You can enroll in a Marketplace plan with a possible subsidy and are not required to take COBRA first.
What does not qualify for a Special Enrollment Period?
Voluntarily dropping a plan you still qualified for, losing coverage because you did not pay your premium, a short-term plan ending, or choosing to end COBRA early do not open an SEP. The loss generally must be involuntary.
When does my coverage start after an SEP?
For most events, coverage starts the first of the month after you enroll. A new baby, adoption, or foster placement can start coverage retroactively on the day of the event, so your child is covered from birth.
Is COBRA or a Marketplace plan cheaper after losing my job?
It depends. COBRA keeps your exact plan but you pay the full premium with no employer help. A Marketplace plan may qualify for a subsidy based on your lower income, which often makes it cheaper. Compare total costs including deductible and network before deciding.
Just lost your job? See health insurance for unemployed people for a step-by-step plan for your first 60 days.
Pregnancy itself isn’t a qualifying event on HealthCare.gov, but some states allow one; see health insurance for pregnant women.
Keep learning: Open Enrollment 2027 dates and deadlines · How the Health Insurance Marketplace works · Affordable health insurance options · 2027 subsidies explained
