Special Enrollment Periods exist because life does not wait for November. The ACA's annual Open Enrollment Period runs from November 1 to January 15 each year, but job losses, marriages, births, moves, and other major life changes happen year-round. Congress built the SEP framework into the ACA precisely so that a coverage gap does not have to follow every major life change. Under Section 1311(c)(6) of the ACA, healthcare.gov is required to offer an enrollment window for each of the federally recognized qualifying life events. As of 2026, the most common QLEs are: losing job-based coverage (60-day SEP), getting married (60-day SEP), having or adopting a child (60-day SEP, with retroactive coverage back to the birth date), moving to a new state or county where plan availability changes (60-day SEP), and losing Medicaid or CHIP eligibility (60-day SEP, plus a separate 90-day Medicaid Unwinding SEP through November 30, 2026). The 60-day clock starts the day of the qualifying event, not the day you learn about your options. Acting within the first two weeks is recommended to allow time for plan selection, document submission, and coverage start processing.
Applying during a Special Enrollment Period at healthcare.gov requires you to select a qualifying event, provide documentation, and complete the full Marketplace application including income information. Subsidy eligibility in 2026 depends on your Modified Adjusted Gross Income (MAGI): between 100% and 400% of the Federal Poverty Level qualifies for premium tax credits on Marketplace plans. The enhanced premium tax credits that temporarily eliminated the 400% FPL cliff expired on January 1, 2026, so the subsidy cliff is back for 2026 coverage. Households above 400% FPL pay full unsubsidized premiums. Households below 138% FPL in the 40 Medicaid expansion states plus DC qualify for Medicaid rather than a Marketplace plan. Medicaid income limits are $22,025 for a single person and $45,540 for a family of 4 in the 48 contiguous states and DC in 2026 per HHS ASPE poverty guidelines. CHIP covers children up to 200 to 300% FPL depending on the state, and enrollment is year-round. The fastest path to subsidy-accurate enrollment is to run the screener first, then apply through healthcare.gov or your state-based Marketplace with your projected annual household income.
7 Steps to Get Coverage
Common Mistakes That Cost People Thousands
The most common mistakes people make when trying to use a Special Enrollment Period in 2026:
- Missing the 60-day SEP window entirely. The 60-day clock starts on the date of the qualifying event, not when you receive a notice or decide to act. Mark your calendar the day coverage ends or the life event occurs.
- Reporting last year's income instead of projected 2026 income. ACA subsidies use projected current-year MAGI. If your income dropped due to job loss, report what you expect to earn the rest of 2026, including unemployment benefits.
- Assuming COBRA is required. COBRA is optional, not mandatory. Comparing Marketplace plans first takes 10 minutes at healthcare.gov and often reveals cheaper options with comparable or better coverage.
- Not checking Medicaid before buying a Marketplace plan. Medicaid is free with no premium and no deductible in most expansion states. Check your household income against 138% FPL before paying a Marketplace premium.
- Failing to submit documentation in time. Healthcare.gov requires proof of the qualifying event. If you select a plan but don't upload or mail documents within 30 days, your enrollment may be cancelled.
- Thinking the ACA subsidy cliff no longer exists. Enhanced premium tax credits expired January 1, 2026. Households above 400% FPL have no federal subsidy floor in 2026 and pay full unsubsidized premiums.
All Federally Recognized Qualifying Life Events for SEP Enrollment in 2026
Federal law under ACA Section 1311(c)(6) and 45 CFR Part 155 defines the qualifying life events that trigger a Special Enrollment Period on the Marketplace. Losing minimum essential coverage is the broadest category: it covers losing job-based health insurance, aging off a parent's plan at 26, losing Medicaid or CHIP eligibility, losing coverage through a divorce, losing student health plan coverage, and the end of a limited-duration plan. The 60-day SEP window for loss-of-coverage events begins on the last day of coverage, not the date of the underlying event such as a termination or divorce. Family change events include marriage (60-day SEP from wedding date), birth (60-day SEP; coverage retroactive to birth date), adoption and placement for adoption (60-day SEP; coverage retroactive to placement date), and court orders requiring coverage. Geographic change events include moving to a new state, moving within a state to a county with different Marketplace plan availability, returning from abroad, gaining status as a lawfully present immigrant, and being released from incarceration. Other qualifying events include gaining eligibility for Marketplace coverage because of a change in citizenship or immigration status, a Marketplace or insurer error, a SHOP plan becoming newly available to the employer, and gaining or losing Indian Health Service eligibility. Each event has its own documentation requirement at healthcare.gov, and the 60-day window is strict.
SEP qualifying events and deadlines, 2026| Qualifying event | SEP window | Coverage start |
|---|
| Loss of job-based coverage | 60 days from last day of coverage | First day of month after enrollment |
| Marriage | 60 days from wedding date | First day of month after enrollment |
| Birth of a child | 60 days from birth date | Retroactive to birth date |
| Adoption or placement for adoption | 60 days from placement date | Retroactive to placement date |
| Move to new state or county | 60 days from move date | First day of month after enrollment |
| Loss of Medicaid / CHIP eligibility | 60 days from termination date | First day of month after enrollment |
| Turning 26 (aging off parent's plan) | 60 days from last day of parent's coverage | First day of month after enrollment |
| Medicaid Unwinding SEP (2024-2026) | 90 days from Medicaid termination notice | First day of month after enrollment |
The Medicaid Unwinding SEP extends through November 30, 2026, per CMS guidance. Some state-based Marketplaces offer additional SEP triggers not listed here. Verify at your state Marketplace or healthcare.gov.
Source: 45 CFR Part 155 Subpart D; healthcare.gov SEP guidance; CMS Medicaid Unwinding guidance 2024-2026
Medicaid Eligibility During a Special Enrollment Period in 2026
Losing job-based coverage in 2026 often triggers Medicaid eligibility you didn't have while employed. Medicaid is income-gated at 138% of the Federal Poverty Level in the 40 expansion states plus DC: for 2026, that means $22,025 for a single person or $45,540 for a family of 4, per HHS ASPE 2026 Poverty Guidelines. State Medicaid programs go by different names depending on where you live: California's Medi-Cal, Arizona's AHCCCS, Wisconsin's BadgerCare, Massachusetts's MassHealth, Connecticut's HUSKY Health, Washington's Apple Health, Oregon's OHP, and Tennessee's TennCare. The 10 non-expansion states (Alabama, Florida, Georgia, Kansas, Mississippi, South Carolina, Tennessee, Texas, Wisconsin, Wyoming) have stricter income limits, typically under 100% FPL for non-disabled adults, leaving a coverage gap that Marketplace plans fill at $0 cost for those with very low income. Medicaid applications can be submitted at healthcare.gov year-round or directly to your state Medicaid agency. Coverage in Medicaid is typically effective the first day of the month you are approved, and in some states can be retroactive up to 3 months before the application date. CHIP covers children through age 18 at incomes up to 200 to 300% FPL depending on the state, and is also year-round without deadlines.
Documents Needed for SEP Application at Healthcare.gov
Healthcare.gov requires proof of your qualifying life event before approving SEP enrollment. The document requirement explains why each qualifying event triggers a distinct document type: the termination letter or COBRA notice proves the loss-of-coverage date for job-loss SEPs, the marriage certificate proves the qualifying event date for marriage SEPs, and the birth certificate or adoption placement papers prove both the event and the retroactive coverage start date for child-addition SEPs. Missing or uploading the wrong document is the second most common reason for SEP denials after the 60-day window. Submit documents within 30 days of selecting a plan. Healthcare.gov accepts PDF scans, phone camera photos of documents, and electronic submissions through your state Marketplace portal. For job-loss SEPs, the COBRA election notice or employer separation letter must show the last day of coverage, not the last day of employment. Those two dates can differ if your employer extends health benefits through the end of the month in which you were terminated. Using the wrong date can shift your 60-day window and cause a denial.
Frequently Asked Questions
What is the Special Enrollment Period window in 2026?
The standard SEP window is 60 days from the date of the qualifying life event. For a job-loss SEP, the 60-day window starts on the last day of employer-based coverage. For example, if your coverage ends July 1, 2026, your SEP runs through August 30, 2026. For a birth or adoption, the 60-day window starts on the birth date or placement date, and coverage can be made retroactive to that date. The Medicaid Unwinding SEP offers a 90-day window through November 30, 2026, for those losing Medicaid eligibility due to the unwinding process. If you miss the SEP window, your next opportunity for Marketplace enrollment is ACA Open Enrollment starting November 1, 2026, for 2027 coverage.
What qualifying life events trigger a Special Enrollment Period?
The federally recognized qualifying life events under 45 CFR Part 155 include: losing minimum essential coverage (job-based, Medicaid, CHIP, student health plan, coverage through a spouse, or COBRA expiring), getting married, having or adopting a child, moving to a new state or county with different plan availability, gaining lawfully present immigrant status, turning 26 and aging off a parent's plan, losing Indian Health Service eligibility, and certain plan errors. The most common trigger is losing job-based coverage, which affects millions of Americans each year. Each qualifying event has a specific 60-day window except Medicaid and CHIP, which are year-round.
How do I document a qualifying event for the SEP application?
Documentation depends on the qualifying event. For job loss, submit your employer termination letter or COBRA election notice showing the last day of coverage. For marriage, submit a marriage certificate. For birth, submit the birth certificate. For adoption or placement, submit the court order or placement agency letter. For a move, submit proof of new address such as a lease, utility bill, or bank statement. Upload documents to healthcare.gov within 30 days of selecting a plan. The document date must match the qualifying event date you entered in the application. Mismatched dates are the most common cause of SEP documentation denial.
What if I miss the 60-day SEP window?
Missing the 60-day SEP window without another qualifying life event means waiting until the next ACA Open Enrollment Period, which runs November 1, 2026 through January 15, 2027 for 2027 coverage. Medicaid and CHIP enrollment remain open year-round and are not affected by SEP deadlines. If another qualifying life event occurs before November, a new SEP window opens. Short-term limited-duration plans are available outside the SEP window but they do not comply with ACA requirements, so they typically exclude preexisting conditions and do not count as minimum essential coverage.
What is the difference between COBRA and a Marketplace SEP plan?
COBRA continuation coverage lets you keep your exact former employer plan for up to 18 months at 102% of the full group premium, typically $400 to $900 per month for an individual in 2026. Marketplace SEP plans are new plans purchased through healthcare.gov, eligible for premium tax credits based on 2026 household income, and typically cost $10 to $300 per month for income between 100% and 400% FPL. COBRA preserves your current provider network and any deductible already met for the year. Marketplace plans may require changing providers if your old network is not available on the Exchange. Most people who qualify for subsidies pay less on a Marketplace plan than on COBRA, even accounting for network differences. You can elect both COBRA and apply for a Marketplace plan during the same SEP window; you just cannot have both active at once.
Do I qualify for Medicaid after losing job-based coverage in 2026?
Medicaid eligibility in 2026 depends on your state and household income. In the 40 Medicaid expansion states plus DC, adults under 138% FPL qualify, which is about $22,025 for a single person and $45,540 for a family of 4 per HHS ASPE 2026 guidelines. Apply any time through your state Medicaid agency or healthcare.gov. California's program is Medi-Cal, Arizona's is AHCCCS, Massachusetts's is MassHealth, Washington's is Apple Health. The 10 non-expansion states have stricter limits. Medicaid enrollment is year-round with no deadline. If you qualify for Medicaid, healthcare.gov will route your application to your state Medicaid agency rather than enrolling you in a Marketplace plan.
Can I get retroactive coverage through a Special Enrollment Period?
Retroactive coverage is available only for birth and adoption SEPs. Coverage for a newborn or newly adopted child can be backdated to the date of birth or placement, as long as you enroll within the 60-day SEP window. All other qualifying life events result in prospective coverage: the plan starts on the first day of the month after you select and pay for it, not back to the event date. Medicaid can be retroactive in some states up to 3 months before the application date, but this varies by state and was limited under recent federal waivers. If your child was born or placed for adoption, act quickly to get retroactive coverage in place before any medical bills accumulate.
What state-specific rules affect my Special Enrollment Period options?
State-based Marketplaces may offer additional qualifying events or extended SEP windows beyond the federal minimum. California's Covered California, New York's NY State of Health, Massachusetts's Health Connector, and several other state Exchanges have added qualifying events for domestic partnership, loss of short-term coverage, or release from incarceration. Medicaid state programs also vary: the 10 non-expansion states have coverage gaps for adults under 100% FPL who do not qualify for Marketplace subsidies. States with their own Marketplace branding include Covered California, kynect in Kentucky, MNsure in Minnesota, and Connect for Health Colorado. Check your state's specific Marketplace for any supplemental SEP rules that go beyond the federal 45 CFR Part 155 baseline.
