How the sixty days are counted
The window runs sixty days from the qualifying event, not from when you found out, not from when the last plan actually stopped paying claims, and not from when you got around to looking into it.
Loss of coverage is the exception, and it works in your favor. That one gives you the sixty days before the loss as well as the sixty after, so the real span is 120 days with the event in the middle. Use the front half. If you know your coverage ends March 31, apply in early March, and new coverage can start April 1 with no gap at all. Wait until April and you are uninsured until at least May 1, which is fine right up until it is not.
What qualifies
| Event | Notes |
|---|---|
| Losing other health coverage | Job-based coverage ending, aging off a parent's plan at 26, losing ARHOME Medicaid or CHIP, a plan year ending on a non-calendar schedule |
| Getting married | At least one spouse must have had coverage in the 60 days before the wedding |
| Having or adopting a child | Coverage is backdated to the date of birth, adoption, or placement |
| Moving | Only if it changes your available plans, and only if you had coverage for one of the 60 days before the move. Moving for medical treatment does not count |
| Gaining citizenship or lawful presence | Applies from the date status is granted |
| Leaving incarceration | Sixty days from release |
| Leaving an abusive or abandoned situation | A survivor may enroll separately from the household on the existing application |
What does not qualify, no matter how it feels
Three situations come up constantly and none of them opens a window.
Dropping coverage yourself while you still have access to it. Quitting your employer plan at open enrollment because it got expensive is a voluntary choice, and the marketplace treats it as one.
Losing coverage for non-payment. A plan terminated for unpaid premiums is not a loss of coverage under these rules.
Getting sick. A new diagnosis, however serious, is not a qualifying life event. This is the conversation nobody wants to have and it comes up several times a year. It is also the reason to keep coverage in place through a gap rather than gambling on a few uninsured months.
The low-income monthly window is gone. For several years, households under 150% of the federal poverty level could enroll in any month. CMS ended that in the 2025 Marketplace Integrity rule and a May 2026 rule made the ban permanent across every exchange. If your income is low and you are outside Open Enrollment, you need a qualifying event like anyone else, or you need ARHOME Medicaid, which still enrolls year-round at any income below its threshold.
Expect to prove it
Special Enrollment Periods used to run largely on the honor system. They do not now. Most enrollments sit in a pending state until HealthCare.gov verifies the event, and coverage does not begin until it clears.
- Lost coverage: a letter from the employer or the insurer showing the termination date. A COBRA election notice works, and so does a final pay stub showing when insurance deductions stopped.
- Moved: documents showing both the old and the new address, such as a lease, a mortgage statement, or utility bills at each.
- Married: the marriage certificate, plus proof one of you had prior coverage.
- New child: the birth certificate, adoption paperwork, or the placement order.
Upload as soon as you submit the application. Every day the documents sit unfiled is a day the enrollment sits pending, and the sixty days do not pause while you find them.
The COBRA decision, briefly
Losing job-based coverage usually means an offer of COBRA landing at the same moment the marketplace window opens, and people default to COBRA because it is familiar.
Compare them before you decide, and compare them in the first two weeks. COBRA keeps your exact plan, network, and any deductible you have already met, which genuinely matters if you are mid-treatment or have already spent heavily this year. What it costs is the full premium plus an administrative fee, which is usually several times the payroll deduction you were used to. A marketplace plan resets your deductible but may come with a premium tax credit, and your income after a job ends is often much lower than the income that made you ineligible before.
Electing COBRA does not close your marketplace window, but dropping COBRA voluntarily later does not open a new one. That asymmetry is why the comparison has to happen now rather than in six months. The full version of this is on losing employer coverage.
If you are near 65
Different rules entirely, and getting them backwards is expensive. If you are 65 or older and lose employer coverage, your route is Medicare, not the marketplace. A marketplace plan does not protect you from the Part B late enrollment penalty, and once you are eligible for premium-free Part A your marketplace subsidies generally end, so you would be paying full price for a plan while a permanent Medicare surcharge accrues underneath it. See Medicare Special Enrollment Periods instead.
Lancaster Cook holds FFM certification and enrolls Arkansas residents through HealthCare.gov at no additional cost. The premium is identical whether you enroll yourself or with an agent.