Outside open enrollment, you need a qualifying life change to sign up for Marketplace coverage. Those changes open a window that usually lasts 60 days from the date the event happened.
Six changes are the ones we ask about directly, because they cover the great majority of situations people actually find themselves in.
You lost health coverage, or you are about to
This is by far the most common trigger. Losing coverage through a job, aging off a family plan, or losing eligibility for a program you were enrolled in all count.
Importantly, this works in both directions. If you already know your coverage is ending shortly, you can usually begin the process ahead of time rather than waiting for it to lapse. Starting early helps avoid a stretch where you are uninsured, and there is no advantage whatsoever to waiting.
Voluntarily dropping coverage you could have kept generally does not count, which surprises people. The rule is aimed at coverage you lost rather than coverage you chose to end.
You turned 26
Most plans allow you to stay on a parent's coverage until you turn 26. When that arrangement ends, it counts as losing coverage, so you get a window to select your own plan.
You do not have to wait for the birthday itself. This is the one trigger a person can genuinely see coming, so it is worth sorting out early to avoid any gap. We cover it in more detail in turning 26 and coming off a parent plan.
You moved
Moving can open a window, because the plans available to you depend on where you live. Insurance companies participate county by county rather than uniformly across a state, so a move can genuinely change which plans exist for you even within the same state.
A move to a different county or state is the situation this covers. Moving within the same area generally does not change your options.
You got married
Marriage opens a window for the newly combined household. It also changes the income and household size the Marketplace counts, which affects any assistance calculation, so it is worth reviewing coverage even when both people already have plans.
You had a baby or adopted a child
A new child opens a window for the household. Coverage in this situation can generally be backdated to the date of birth or adoption, which is unusual among these triggers and genuinely valuable.
You lost Medicaid or CHIP coverage
Losing Medicaid or CHIP is treated as losing coverage and opens a window accordingly. This has affected a very large number of people in recent years as states reviewed eligibility for everyone enrolled.
If this happened to you, it is worth acting promptly, and it is also worth confirming whether the loss was correct in the first place. We cover the situation in losing Medicaid coverage and what to do next.
What is not on this list
A low income by itself no longer opens a year-round window. That provision ended in August 2025, and it remains the rule people most often misremember. Income still affects how much assistance you receive with the cost, but it is not a reason you can enroll outside the usual dates.
Other qualifying events do exist in the underlying regulations, and this list is not a statement that nothing else counts. If your situation changed in a way that is not described above, that is genuinely worth asking a licensed agent about rather than assuming the answer.
The 60 days matter
The window is generally 60 days, and it is measured from the date of the event rather than from the date you noticed it. That is a short period, and it passes quickly when someone is dealing with a move, a new baby, or a lost job at the same time.
If you think one of these applies to you, the practical advice is to start the conversation now rather than researching thoroughly first. Confirming whether a window is open takes very little time, and the window does not pause while you read.
Documentation, and why it is worth keeping
Qualifying life changes frequently require verification, and the documentation requirement surprises people who assumed a declaration would be sufficient.
A letter confirming when previous coverage ended, a marriage certificate, a birth certificate or documentation establishing a new address are the usual evidence. The document most often needed and least often retained is the notice stating the date previous coverage terminated, because it establishes precisely when the window opened.
Keeping that paperwork immediately, rather than locating it later under deadline pressure, removes the most common source of delay in an otherwise straightforward process.
Why the deadline is measured from the event
The sixty days run from the date the qualifying change occurred, not from the date somebody became aware of the consequences. That distinction matters considerably in practice.
Somebody whose coverage ended at the conclusion of a month may not receive written confirmation for several weeks afterward, by which point a substantial portion of the window has already elapsed. The window continues running throughout that period regardless.
Consequently the appropriate response to a suspected qualifying change is establishing whether a window is currently open, rather than researching the subject comprehensively beforehand. Confirming the position requires remarkably little time, and the window continues elapsing throughout any investigation.
A further complication deserves mention. Certain qualifying changes require that you already held coverage immediately beforehand, which means somebody uninsured for an extended period may not obtain a window from an event that would otherwise create one. Establishing that distinction early avoids an unpleasant discovery at the point of application.
Coverage start dates additionally depend on when the application is completed within the window. Enrolling earlier generally produces an earlier start, whereas enrolling toward the conclusion of the sixty days can delay the beginning of coverage by an additional month. Somebody treating the deadline as the target consequently accepts a longer uninsured interval than necessary.
Where to read next
- Open enrollment and special enrollment, and when you can actually sign up
- Losing Medicaid coverage and what to do next
- Turning 26 and coming off a parent plan
Coverage rules differ from state to state, so it is worth reading the page for where you live: North Carolina, Florida, Texas, Tennessee, South Carolina, Alabama or Wisconsin.