Special Enrollment Period
A Special Enrollment Period (SEP) is a time outside the yearly Open Enrollment Period when you can sign up for health insurance or make changes to your insurance plan. You usually qualify after certain life events, like losing coverage, moving, getting married, or having a baby. During this window, you may be able to enroll in a Marketplace plan without waiting for the next Open Enrollment Period.
Last updated: October, 2026
Key Takeaways
- A Special Enrollment Period gives you another chance to enroll after certain life events.
- You usually need a qualifying life event to get one.
- The amount of time you have to enroll during a Special Enrollment Period is limited.
- In most cases, the SEP window is about 60 days from the date of your qualifying life event.
- Missing the deadline can leave you without coverage until the next Open Enrollment Period.
- A Special Enrollment Period can help you avoid gaps in coverage and extra out-of-pocket costs.
What is a Special Enrollment Period?
A Special Enrollment Period, often called an SEP, is a set amount of time when you can enroll in a Marketplace health insurance plan or change plans outside the yearly Open Enrollment Period.
You may qualify for an SEP after certain life changes, such as losing job-based coverage, getting married, moving, or having a child. In many cases, you must act within a limited number of days after the event. You may also need to provide documents that show the life event happened. SEP rules can vary based on the situation. Generally, you have 60 days to enroll in or change coverage. It is best to check your eligibility as soon as possible.
Common situations that may qualify you for a Special Enrollment Period include:
- Loss of coverage: Losing job-based insurance or aging out of a parent’s plan
- Changes in household: Getting married, having a baby, or adopting a child
- Changes in residence: Moving to a new ZIP code, county, or state
- Other qualifying events: Changes in eligibility for Medicaid or other programs
For example, if you move to a new state, you may qualify for a Special Enrollment Period to choose a new Marketplace plan available in your area.
How This Shows Up in Real Life
For example, you lose health coverage through your job on June 30. That loss of coverage may qualify you for a Special Enrollment Period. If you act during your SEP window, you may be able to pick a new Marketplace plan instead of waiting until the next Open Enrollment Period.
To complete the process, you may need to submit documents that confirm your qualifying life event, such as proof of lost coverage. After you apply and choose a plan, your coverage can begin based on your enrollment date and plan rules.
How a Special Enrollment Period Affects What You Pay
A Special Enrollment Period does not directly lower your premium, deductible, or copays. Its value is that it gives you a chance to get coverage when your situation changes. That can help you avoid paying the full cost of care on your own if you have a medical need before the next Open Enrollment Period. Acting on time can also help you keep coverage going with fewer gaps.
Where to Find This in Your Plan Details
To check Special Enrollment Period information, you can look at:
- Your Summary of Benefits and Coverage (SBC)
- Your Schedule of Benefits
- Your member handbook or policy documents
- Your Ambetter Health online member account
You can also check Marketplace notices and enrollment information for deadlines and document requirements.
How This Changes Across Marketplace Plans
Special Enrollment Period rules are tied more to eligibility and timing than to plan category. Still, the plan options available during an SEP can be different based on where you live, the plans offered in your area, and the type of qualifying event.
- Different life events can create different SEP rules.
- The deadline to enroll may depend on your situation.
- Plan choices can be different based on where you live.
- It is best to check your options as soon as your life event happens.
| Plan Feature | How It Can Be Different | What It Means for You |
|---|---|---|
| Qualifying Event | Different life events can trigger an SEP | Your reason for enrolling affects whether you qualify |
| Enrollment Window | The deadline may depend on the event | You may have a limited time to act |
| Plan Availability | Available plans can differ by ZIP code and service area | Your choices may depend on where you live |
| Coverage Start Date | Start dates can depend on when you enroll | Waiting too long can delay when coverage begins |
FAQs About Special Enrollment Period
Common qualifying life events include losing health coverage, moving, getting married, having a baby, or adopting a child. Other situations may also qualify depending on Marketplace rules. It is important to check the rules for your specific event.
The length can be different depending on the qualifying event. In many cases, the window is limited, and could last as little as 60 days, so it is important to act quickly after the life change. Waiting too long could mean missing your chance to enroll.
Usually, yes. You may need to submit documents that show your qualifying life event happened. Examples can include a marriage certificate, birth record, or proof that you lost other coverage.
Usually, yes, if you qualify. A Special Enrollment Period may allow you to enroll in a new plan or change your current coverage. The options available may depend on your situation and where you live.
Ambetter Health offers Marketplace plans that allow you to enroll or make changes during a Special Enrollment Period if you qualify. You can apply online, review available plans in your area, and get help estimating your costs based on your income and household size. You may also need to submit documents to confirm your qualifying life event. If you need help, Ambetter Health’s support team and licensed agents can guide you through the enrollment process and next steps.
If you miss the deadline, you may need to wait until the next Open Enrollment Period to enroll or make changes. That could leave you without coverage for a period of time. It is best to act as soon as your qualifying event happens.
Have questions? Let’s walk through how this works with your plan.
Already covered? Your benefits vary by plan and location. Limitations and exclusions may apply. Contact Ambetter Health or call Member Services at the number on the back of your Member ID Card for answers specific to your coverage.
Not yet a member? Our licensed agents are ready to help you find the perfect plan. Call 855-680-3270 (TTY: 711), Monday-Friday 8 a.m. to 9 p.m. ET, to discuss your health insurance options.
Related Terms
What Is a Qualifying Life Event?
10/27/2026
Find out what counts as a qualifying life event and how it allows you to change your health plan outside open enrollment.
Learn MoreSources:
Healthcare.gov - Special Enrollment Period
CMS.gov - Understanding Special Enrollment Periods