Can I Buy ACA Health Insurance Outside of Open Enrollment? (2026)

Direct Answer: What Qualifies You for a 2026 ACA Special Enrollment Period

Yes, but only with a qualifying life event. Healthcare.gov recognizes 13 qualifying event categories in 2026. You have 60 days from the event to enroll. The most common trigger is losing job-based coverage, which lets you enroll up to 60 days before that coverage ends. Missing the 60-day window means waiting for the next open enrollment period, which begins November 1, 2026 for 2027 coverage.

Every ACA Qualifying Event for a Special Enrollment Period (2026)

Healthcare.gov and state-based marketplaces recognize the following qualifying events in 2026. Each opens a 60-day SEP window from the date of the event unless otherwise noted.

• Losing job-based, COBRA, student, or other qualifying health coverage (most common SEP): 60 days before or after the loss date.
• Getting married: 60 days from the wedding date. Both spouses must be enrolled if one uses the SEP.
• Getting divorced or legally separated and losing dependent coverage through that split.
• Having a baby, adopting a child, or having a child placed in foster care: 60 days from birth, adoption, or placement. Coverage is retroactive to the birth date.
• Moving to a new coverage area: new zip code or county that means your current plan is no longer available. Must have had qualifying coverage in the previous 60 days.
• Turning 26 and aging off a parent's health plan: 60 days from the coverage end date.
• Gaining citizenship, national status, or lawful presence in the U.S.
• Being released from incarceration (not while awaiting trial): 60 days from release.
• Gaining or losing eligibility for Medicaid or CHIP: triggers an SEP for marketplace coverage if the Medicaid or CHIP change affects your eligibility.
• Gaining eligibility for employer COBRA continuation coverage: 60 days to elect COBRA; electing COBRA does not trigger a marketplace SEP unless COBRA coverage later ends.
• Being a victim of domestic violence or abuse (can enroll separately from household members).
• Experiencing a change in household income or composition that affects eligibility for premium tax credits or cost-sharing reductions.
• Insurer discontinuing a plan: if your current marketplace plan is no longer being offered, you qualify for an SEP regardless of the calendar.

Loss-of-Coverage SEP: The 60-Day Window in Detail

Losing job-based coverage is the most common SEP trigger, and it has a unique feature: you can act before the coverage ends. Healthcare.gov allows you to enroll up to 60 days before your job-based coverage ends, not just after. This means if your employer gives you 90 days notice that coverage will end, you can shop and pick a marketplace plan before your last day at work, with coverage starting on the day after your employer plan ends.

Coverage types that count as qualifying health coverage (so losing them triggers an SEP) include: employer-sponsored health insurance (your own or as a dependent), individual market ACA plans, Medicare, Medicaid, CHIP, TRICARE, Veterans Affairs coverage, Peace Corps coverage, and student health plans. Coverage types that do NOT count: short-term health plans, dental-only plans, vision-only plans, fixed-indemnity plans, and coverage that ended because you did not pay premiums.

Documentation required for a loss-of-coverage SEP: a letter from your employer, insurer, or the government program confirming your coverage end date. Healthcare.gov may ask you to upload this document within 30 days of enrolling. Failure to provide it can result in your plan being cancelled retroactively.

State-Based Marketplace SEPs vs. Healthcare.gov SEPs

Sixteen states and Washington D.C. run their own ACA marketplaces in 2026 rather than using healthcare.gov. These state-based marketplaces follow the same federal SEP framework but may add qualifying events that healthcare.gov does not recognize. California (Covered California), New York (NY State of Health), and Washington (Washington Healthplanfinder) are examples where state law has expanded the SEP list beyond federal minimums.

Key difference for Open Enrollment: state-based marketplaces set their own OEP end dates. While healthcare.gov closed January 15, 2026, California, Colorado, Massachusetts, Minnesota, Nevada, New York, Pennsylvania, and Washington all extended their Open Enrollment to January 31, 2026 or later. If you are in a state-run marketplace, check your state marketplace website directly, not healthcare.gov, for exact SEP rules and documentation requirements.

Medicaid and CHIP: Year-Round Enrollment With No SEP Required

Medicaid and CHIP have no enrollment window in 2026 or any year. You can apply and enroll any day of the year, any time a qualifying life event occurs, or even without any event at all. Coverage typically begins the first day of the month after your application is approved, or in some states retroactively to the month you applied. If your income and household size fall within your state's Medicaid limits, the absence of Open Enrollment does not apply to you. Check Medicaid income limits by state to see if you qualify.

Gaining or losing Medicaid eligibility is itself a qualifying event for an ACA marketplace SEP. If you applied for Medicaid and were denied, you have 60 days from the denial notice to enroll in an ACA marketplace plan. Similarly, if your income rises above the Medicaid threshold mid-year, you can move to a marketplace plan within 60 days. The SEP runs from the date of the Medicaid determination, not from any other life event.

Short-Term Health Plans: Year-Round but Not ACA-Compliant

Short-term health plans are available year-round without a qualifying event. They are federally regulated separately from ACA marketplace plans, and as of 2026, federal rules limit their duration to 3 months (renewable up to 4 months total), though some states allow longer terms. Short-term plans are NOT ACA-compliant, which means they can legally deny you coverage based on a preexisting condition, exclude coverage for essential health benefits (maternity, mental health, prescription drugs, substance use treatment), impose annual and lifetime dollar caps, and charge higher premiums to people with health history.

Short-term plans are sometimes marketed as a bridge option during a gap in ACA coverage. They can serve that purpose for healthy individuals with no chronic conditions who need emergency protection for a brief period. They are not a substitute for ACA-compliant coverage, especially for anyone who uses regular prescriptions, is pregnant, has a chronic disease, or expects significant medical needs.

What to Do If No Qualifying Event Applies to You

If you missed Open Enrollment and cannot document a qualifying event, your options in 2026 are limited but not zero. First, check if your income makes you eligible for Medicaid or CHIP in your state, since those programs enroll year-round. Second, if your income is very low and your state has not expanded Medicaid, you may fall in the ACA coverage gap (too high for Medicaid, too low for marketplace subsidies in a non-expansion state). Third, if you are under 26 and not currently on a parent's plan, check whether you qualify for CHIP based on your age and income, since CHIP eligibility extends to 19 in most states and to 26 in a handful.

A community health center or Federally Qualified Health Center (FQHC) may provide primary care at a sliding-scale fee regardless of your insurance status. FQHCs serve everyone who walks in, billed on a sliding scale based on income. The Health Resources and Services Administration (HRSA) maintains a locator at findahealthcenter.hrsa.gov. This is not insurance, but it closes the gap for primary and preventive care while you wait for Open Enrollment.

Open Enrollment for 2027 coverage begins November 1, 2026 on healthcare.gov. Mark that date now. You can browse plans before enrollment opens; actual selection requires waiting for the start date.

How to Enroll During a Special Enrollment Period (2026 Steps)

Healthcare.gov is the starting point for most Americans. State-based marketplace residents should go directly to their state portal. The process is the same whether you are enrolling for the first time or changing plans mid-year via an SEP.

• Step 1: Go to healthcare.gov (or your state marketplace) and log into or create your account. Have your Social Security numbers, household income estimate, and employer information ready.
• Step 2: Report your qualifying event. Healthcare.gov will ask you what event happened and the date. Select the event type from the dropdown list; the system will calculate your SEP window automatically.
• Step 3: Gather your documentation. For a job-loss SEP, this means a letter from your employer or insurer confirming your coverage end date. For a birth, a birth certificate or hospital record. For a move, a utility bill, lease, or official mail to the new address.
• Step 4: Compare plans and select one. Use the filter tools on healthcare.gov to filter by premium, deductible, and whether your current doctors are in network. ACA plans must cover essential health benefits in all metal tiers (Bronze, Silver, Gold, Platinum).
• Step 5: Pay your first premium before the due date in your plan confirmation. Coverage does not begin until your first payment clears. For a loss-of-coverage SEP, your new coverage typically begins the first day of the month following your enrollment, or the first of the month after you lose your old coverage, whichever is later.
• Step 6: Upload documentation within 30 days of enrollment if healthcare.gov flags your application for verification. Plans can be cancelled retroactively if documentation is not submitted or does not match the reported event.

How long do I have to enroll in ACA coverage after losing my job?

You have 60 days from the date your job-based coverage ends to enroll in an ACA marketplace plan using a Special Enrollment Period. Healthcare.gov also allows you to start the process up to 60 days before your job coverage ends, so you can pick a plan before your last day of work and have coverage begin the day your employer plan stops. Missing the 60-day window means waiting for November 1, 2026 Open Enrollment.

Can I enroll in ACA if I just had a baby?

Yes. Birth, adoption, and foster placement are qualifying events that open a 60-day Special Enrollment Period. Better yet, ACA coverage for a newborn is retroactive to the date of birth, so as long as you enroll within 60 days, the baby's coverage starts on day one of life. Add the newborn to your existing plan or enroll the whole household in a new plan if you are currently uninsured.

Does moving trigger an ACA Special Enrollment Period?

Yes, but only if you move to a new coverage area where your current plan is not available, and only if you had qualifying health coverage in the previous 60 days. Moving within the same zip code or to a new address served by the same insurers does not qualify. When it does qualify, you have 60 days from your move date to enroll in a plan covering your new area.

I was denied Medicaid. Can I still get an ACA plan?

Yes. A Medicaid or CHIP denial is a qualifying event for an ACA marketplace Special Enrollment Period. You have 60 days from the date of the denial notice to enroll in a marketplace plan. Income-based premium tax credits and cost-sharing reductions may apply if your household income is between 100% and 400% of the federal poverty level in 2026 (the ACA subsidy cliff returned January 1, 2026 for incomes above 400% FPL).

Can I buy ACA health insurance at any time without a qualifying event?

No. Outside of Open Enrollment (November 1 to January 15 each year on healthcare.gov), ACA-compliant marketplace plans require a qualifying life event. Without one, you cannot enroll until the next Open Enrollment period. Medicaid and CHIP are the exception: those programs accept applications year-round with no event required.

What is the difference between COBRA and an ACA marketplace plan during a job loss?

COBRA lets you keep your employer plan for up to 18 months (or 36 months in some cases) by paying the full premium yourself, often $500 to $700 per month or more for an individual in 2026. An ACA marketplace plan may cost less if you qualify for a premium tax credit. Both options are triggered by the same job-loss SEP. You can elect COBRA and still switch to a marketplace plan within 60 days of losing coverage; you do not have to pick COBRA to preserve your SEP.

Are short-term health plans the same as ACA plans outside Open Enrollment?

No. Short-term plans are available year-round without a qualifying event, but they are not ACA-compliant. They can legally deny you based on a preexisting condition, exclude maternity, mental health, and prescription drug coverage, and impose lifetime dollar caps. They work as a short bridge for healthy people but are a significant risk for anyone with ongoing health needs. Always check whether a plan is ACA-compliant before purchasing.

Does getting married qualify me for an ACA Special Enrollment Period?

Yes. Marriage is a qualifying event for a 60-day Special Enrollment Period starting on your wedding date. Both spouses should enroll or update their coverage within 60 days. The SEP applies even if both spouses already had ACA coverage on separate plans and want to combine onto one household plan.