Special Enrollment Periods — How to Get Health Insurance Outside Open Enrollment

If you missed the annual Open Enrollment window, you are not necessarily locked out of health insurance for the rest of the year. A Special Enrollment Period (SEP) gives you a 60-day window to enroll in ACA-compliant marketplace coverage after experiencing a qualifying life event. Understanding which events qualify, how to document them, and what your alternatives are can mean the difference between months of coverage and months of financial vulnerability.

This guide covers every qualifying life event recognized by the federal marketplace, the exact timelines you need to follow, a direct cost comparison between COBRA and marketplace coverage, and year-round alternatives for those who do not qualify for an SEP.

Complete List of Qualifying Life Events

Not every change in your life triggers a Special Enrollment Period. The marketplace recognizes specific categories of events, each with its own documentation requirements. Here is the full list of qualifying life events for 2026:

Loss of Health Coverage

• Losing employer-sponsored insurance due to job loss, layoff, reduction in hours, or termination
• Losing coverage through a spouse or parent's plan (including aging off a parent's plan at age 26)
• COBRA coverage expiring or becoming unaffordable
• Losing individual coverage due to the plan being discontinued in your area
• Losing student health insurance upon graduation or leaving school

Note: Voluntarily canceling your plan or being terminated for non-payment of premiums does not qualify as a loss-of-coverage event.

Changes in Household

• Getting married
• Getting divorced or legally separated (if losing coverage through a spouse)
• Having a baby or adopting a child
• A death in the household that changes your coverage status
• Gaining a dependent through foster care placement or legal guardianship

Changes in Residence

• Moving to a new state
• Moving to a new county that has different marketplace plan options
• A student moving to or from school in a different coverage area
• Gaining status as a U.S. citizen or lawful resident
• Moving from transitional housing, incarceration, or a similar institutional setting

Other Qualifying Events

• Changes in income that affect eligibility for premium tax credits or cost-sharing reductions
• Becoming newly eligible or ineligible for marketplace coverage due to immigration status changes
• Errors or misrepresentations by the marketplace or an enrollment assistant that affected your enrollment
• A plan substantially violating its contract provisions

The 60-Day Enrollment Window

Once a qualifying life event occurs, you have exactly 60 days to select and enroll in a new marketplace health insurance plan. This window is firm — the marketplace will not grant extensions, even if you were unaware of the deadline.

For loss-of-coverage events, the timeline works in your favor: you can begin shopping for new coverage up to 60 days before your current coverage ends. If you know you are losing your job or your employer plan is being discontinued, start comparing plans immediately rather than waiting until coverage actually lapses.

Documenting Your Qualifying Event

When you apply for a Special Enrollment Period, the marketplace will ask you to provide documentation proving your qualifying life event. Having this documentation ready speeds up the verification process and ensures your enrollment is not delayed. Here is what you typically need:

• Loss of coverage: A letter from your former employer or insurer showing your coverage end date, or a COBRA election notice
• Marriage: A marriage certificate or marriage license
• Birth or adoption: A birth certificate, hospital records, or adoption decree
• Relocation: A new lease agreement, utility bill, updated driver's license, or closing documents showing your new address
• Divorce: Divorce decree or legal separation agreement, plus documentation showing loss of spouse's coverage

A licensed broker can help you gather and submit the correct documentation, reducing the risk of delays or denials during the verification process.

Year-Round Alternatives When You Do Not Qualify for an SEP

If you do not have a qualifying life event and Open Enrollment has passed, you cannot purchase ACA-compliant marketplace coverage. However, several alternatives can provide temporary or supplemental protection:

Short-Term Health Insurance

Short-term health insurance plans are available year-round in most states and can provide gap coverage for up to 364 days in many areas, with renewal options extending to 36 months. These plans are medically underwritten (meaning pre-existing conditions may not be covered) and do not include all ACA essential health benefits, but they offer meaningful protection against catastrophic medical bills at a fraction of ACA plan premiums.

Supplemental and Fixed-Indemnity Plans

Fixed-indemnity plans, critical illness coverage, and accident insurance can be purchased at any time and provide cash benefits when you receive medical care. While these are not substitutes for comprehensive health insurance, they can reduce your financial exposure during a coverage gap.

Off-Exchange Plans

Some carriers offer individual health insurance plans outside the marketplace. These plans are ACA-compliant (covering pre-existing conditions and essential health benefits) but are not eligible for premium tax credits. They may have different enrollment windows in some states.

For a full overview of available plan types, including network structures and cost-sharing details, review our comprehensive plan comparison guide.