ACA Marketplace Special Enrollment Period · Updated July 2026

Had a baby or adopted? Your Marketplace Special Enrollment Period

A qualifying life event can open a Special Enrollment Period to get or change Health Insurance Marketplace (ACA) coverage outside Open Enrollment. Here's exactly what applies when you have a baby, adopt, or foster a child.

Quick answer: Having a baby, adopting a child, or having a child placed with you for adoption or foster care opens a Special Enrollment Period. You have 60 days from the date of the birth, adoption, or placement to enroll or add the child.

Your Special Enrollment Period window
You have 60 days from the date of the birth, adoption, or foster placement to enroll in a Marketplace plan or add the ne
Triggered when you have a baby, adopt, or foster a child
You have 60 days from the date of the birth, adoption, or foster placement to enroll in a Marketplace plan or add the new child to your coverage.

What you can do during this Special Enrollment Period

Add the new child to your existing Marketplace plan, enroll the whole household in a new plan, or pick a different plan — and update your household size so your premium tax credit is recalculated. In many cases the new child's coverage can be backdated to the date of birth, adoption, or placement.

When your coverage starts & documents

Coverage for the new dependent can often be effective the day of the birth, adoption, or placement — earlier than the usual first-of-next-month rule. On the Federal Marketplace you generally are not required to submit documents to confirm a birth, adoption, or foster-placement SEP.

Who this applies to

Households that add a child by birth, adoption, placement for adoption, or foster-care placement. Adding a dependent changes your household size and can change the amount of premium help you qualify for.

Not sure if you qualify?

The official HealthCare.gov screener walks through your situation in a few questions and tells you if a Special Enrollment Period is open — free, no obligation.

Check on HealthCare.gov →

Frequently asked questions

How long do I have to add a newborn to my health plan?

You have 60 days from the date of birth to add a newborn to a Marketplace plan, and coverage can often be backdated to the birth date. The same 60-day window applies to adoption and foster-care placement.

Does adopting a child qualify me for a special enrollment period?

Yes. Adoption, placement for adoption, and foster-care placement all trigger a 60-day Special Enrollment Period — the same as a birth. You can add the child to an existing plan or enroll your household in a new one.

Related Marketplace windows & guides

Just got married
The Marketplace SEP window when you get married.
Moved to a new area
The Marketplace SEP window when you make a permanent move.
How ACA Agent Commissions Work
PMPM pay explained for agents writing Marketplace plans.
All Guides
Every Medicare & Marketplace guide in one place.

ACA agent tracking client Special Enrollment Periods?

Special Enrollment Periods are short and event-driven — miss a client's 60-day window and they wait until Open Enrollment. A dated SEP log is the difference between a written app and a lost lead. This page is free to share. The ACA Health Agent Tracker ($29, Excel + Google Sheets) gives you a ready-made book of business to log every member's qualifying event, deadline, and PMPM; the Agency-in-a-Box bundles it with the full CRM and compliance logs.

See the ACA Health Agent Tracker on Etsy →

Official sources

These windows are based on U.S. government Health Insurance Marketplace rules: