How long do I have to add my newborn to insurance?

Sixty days from the birth, adoption, or foster placement. The window is generous on the back end too: coverage is backdated to the day of the event, so the baby is insured from day one even if you finish enrolling three or four weeks later. If you have a job-based plan instead, federal law gives you at least 30 days to add the child, with coverage effective from the date of birth.

Can I put my newborn on Medicaid or CHIP?

Often, yes — and you should check before you pay to add the baby to a marketplace plan. Medicaid and CHIP enroll year-round with no window, and they cover children at much higher income levels than adults. A household where the parents keep their marketplace plan and the baby is on CHIP is completely normal, and frequently the cheapest correct answer.

I already have a marketplace plan. Can I switch to a better plan now that the baby's here?

Usually not, and this is the part that trips people up. As an existing enrollee you can add the baby to your current plan, or enroll the baby alone in any plan for the rest of the year — but you generally can't re-shop the whole household onto a different plan until Open Enrollment. A few state-run marketplaces are more flexible, so it's worth asking yours.

What if I miss the 60 days?

You wait for the next Open Enrollment unless another qualifying life event opens a new window — losing other coverage, a move, a marriage. The baby may still qualify for Medicaid or CHIP at any time, so check that even if the marketplace window has closed. The lesson: report the birth early, before you're buried in newborn life.

When does the baby's coverage actually start?

By default, the day of the birth, adoption, or placement — even if you enroll up to 60 days later. That covers any care from day one, but it also means premiums are owed back to that date. If you'd rather not pay retroactively, you can ask the marketplace to start coverage on the first of the following month instead. A job-based plan covers the child from the date of birth once you enroll within its window.

How to add a new baby to your health insurance (and your newborn to Medicaid)

A birth, adoption, or foster placement gives you 60 days to add your baby to coverage — and the coverage can start the day they were born. Here's exactly how to do it, the mistake that costs new parents the most, and how the rules shift state by state.

In short

A birth, adoption, or foster placement opens a 60-day Special Enrollment Period to add your baby to coverage, and the coverage reaches back to the day of the event — so the baby is insured from day one even if you enroll a few weeks later. If you already have a marketplace plan, you add the baby to that plan (you usually can't switch plans mid-year). And before you pay to add the baby to a marketplace plan, check Medicaid and CHIP: they enroll year-round and cover children at far higher incomes than adults.

Bringing a baby home is the one time the health insurance system actually cuts you some slack — but only if you act inside the window, and only if you know which of two or three paths is yours. Most of the bad outcomes we see aren't from missing the deadline. They're from a new parent assuming the baby is "probably covered," or trying to do the one thing the rules don't allow, and finding out weeks later when a pediatrician bill shows up.

So let's walk the whole thing, start to finish, including the parts other guides skip: adoption and foster placements, what happens to your subsidy, the retroactive-coverage trick, and how the answer changes depending on your state.

The 60-day clock — when it starts, and the part that surprises people

The moment your baby is born, adopted, or placed with you for foster care, a 60-day Special Enrollment Period opens. You have those 60 days to add the child to a plan or to enroll in a new one. Miss it, and you're generally waiting for Open Enrollment.

Here's the surprising part, and it's a good surprise: this Special Enrollment Period is retroactive to the day of the event. Most special enrollments start coverage the first of the next month. A new baby is different — enroll any time in the 60 days and you can have the coverage backdated to the birth date, so there's no gap and nothing is uncovered, even the delivery-day pediatric care. You get to be a sleep-deprived new parent for three weeks and still come out with day-one coverage.

One thing that catches people off guard in the other direction: in most states, being pregnant does not open this window — the birth does. You can't apply ahead "to be safe." (New York is a notable exception, and a couple of other states have their own pregnancy rules — more on state differences below.) So for most people, the clock genuinely starts at delivery.

Report the birth promptly even if you're not sure what you'll do yet. Your household just grew, which can change your subsidy in your favor, and reporting it is also what triggers the system to check your newborn for Medicaid and CHIP. Early reporting costs nothing and keeps every option open.

Step by step

Write down the event date. Birth, adoption, or foster-placement date. That's day zero, and your 60-day count and your retroactive coverage both hinge on it.
Figure out which coverage situation is yours. Do you already have a marketplace (HealthCare.gov or state-exchange) plan? A job-based plan? No coverage at all? The right move is completely different for each, and we cover all three below.
Report the birth to the right place, inside the window. For a marketplace plan, log in and report a "household change — had a baby." For a job-based plan, tell HR or the benefits administrator — that's a HIPAA special enrollment and it runs on the plan's own (often 30-day) clock.
Decide: add the baby, or enroll the baby alone. If you're an existing marketplace enrollee, you can add the baby to your plan, or put the baby on its own plan for the rest of the year. (You generally can't move the whole family to a new plan — see the mistake section.)
Check Medicaid and CHIP for the baby — actually do this one. It's year-round and the income limits for kids are high. This is frequently the cheapest correct answer, and the marketplace application screens for it automatically when you report the birth.
Choose your coverage start date. Backdated to the birth (covers everything from day one, premiums owed back to it) or the first of the next month (cleaner billing, but a short gap before then). Pick deliberately.
Confirm and pay. Make sure the baby shows on the policy and the first premium is handled so the enrollment doesn't auto-cancel. Then, finally, sleep.

Your three paths

If you already have a marketplace plan

You add the baby to your existing plan, or you enroll the baby alone in any plan for the rest of the year. Adding the baby is the common move, and it's the simplest: same plan, same network, one more covered person, coverage back to the birth date.

Reporting the birth also re-runs your subsidy math with a larger household, which usually means more help, not less — a bigger household raises the income thresholds that determine your premium tax credit. So this is one of the rare insurance updates that tends to work in your favor.

If you don't have coverage right now

The birth opens the door for the whole household. A new plan can cover you, the baby, and anyone else in the household, with coverage effective from the event date. Run your numbers with the new household size before you pick a plan, because the subsidy on a larger household can change which plan is genuinely cheapest over the year.

If you have a job-based plan

Adding a newborn is a HIPAA special enrollment right. Your employer's plan must give you at least 30 days to add the child, and the coverage is effective from the date of birth. The 30-day employer window is shorter than the marketplace's 60 days, so this is the path where people most often run out of time — tell HR in the first week or two, not the seventh.

The mistake that costs new parents the most

Here it is, plainly: if you already have a marketplace plan, you generally cannot switch the whole family to a different plan when the baby arrives. Having a baby lets you add the baby; it does not reopen plan shopping for everyone else in the household. That waits for Open Enrollment.

People assume a new baby is a "reset everything" event and start comparing shiny new plans for the whole family, then get told no. If your current plan's network doesn't include a pediatrician you want, or you wish you'd picked a lower deductible, note it now and act at Open Enrollment — but for the baby, right now, you add to what you have. (A handful of state-run marketplaces are more generous about mid-year changes, so it's worth one phone call to yours to confirm.)

Don't skip Medicaid and CHIP for the baby

This is the section to actually act on. Medicaid and the Children's Health Insurance Program (CHIP) enroll year-round, with no window, and they cover children at incomes well above the cutoffs for adults — often two to three times the federal poverty level, depending on the state. A newborn frequently qualifies even when the parents earn too much to qualify themselves.

A household where the parents are on a subsidized marketplace plan and the baby is on CHIP is normal, common, and frequently the cheapest correct setup. Before you pay to add the baby to a marketplace plan, check this. When you report the birth on the marketplace application, it screens the child for Medicaid and CHIP automatically and hands you off if the baby qualifies.

If you're in one of the states that didn't expand Medicaid (Alabama, Florida, Georgia, Kansas, Mississippi, South Carolina, Tennessee, Texas, Wisconsin, and Wyoming), the adult eligibility gap is real — but CHIP still covers kids in those states, so the baby is usually fine even where the parents fall into the coverage gap.

A real example, start to finish

Say the baby comes March 3. You already have a Silver marketplace plan for yourself.

March 3 is day zero. Your 60-day window runs through early May.
March 10, between feedings, you log in and report "had a baby." You choose to add the baby to your plan and backdate coverage to March 3.
The application screens the baby for CHIP. Your income puts the baby over your state's CHIP line, so the baby stays on your marketplace plan — but you checked, which is the point.
Because your household went from one to two, your premium tax credit recalculates upward, and your share of the premium drops a little.
The March 3 backdate means the newborn screenings and the first pediatric visit are covered, even though you didn't finish the paperwork until March 10. You owe premium back to March 3, which you decide is worth it for the clean, gap-free coverage.

Total active effort: about twenty minutes, done before the baby's two weeks old.

Edge cases worth knowing

Adoption and foster placement work the same way as a birth: the placement date is day zero, the 60-day window applies, and coverage backdates to the placement.
Twins or multiples: same single event, all the children added under the one Special Enrollment Period.
A baby born near year-end can overlap with Open Enrollment. If the birth lands inside the Open Enrollment window, you have more flexibility — you can choose plans for next year for the whole family at the same time. Outside it, you're on the new-baby SEP rules above.
You'd rather not pay retroactively: you can decline the backdate and start coverage the first of the next month instead. You trade a short gap for not owing premium back to the birth. For a healthy newborn with no immediate bills, some parents choose this; if there's any NICU or specialist care, the backdate almost always wins.
Documents: the marketplace may ask for proof of the event (a birth certificate, hospital record, or adoption or placement paperwork) after you apply. Don't wait on the paperwork to enroll — enroll first, send documents when asked. Also start the newborn's Social Security number application early; you'll need it for tax-time subsidy reconciliation, though not to enroll.

How the rules shift by state

The 60-day federal window applies everywhere, and the retroactive-to-birth start does too. What varies is which marketplace you use, how the Medicaid and CHIP picture looks, and a few state-specific twists — New York, for instance, treats pregnancy itself as a qualifying event, which most states don't. Find your state for the specifics, and tap through to its full enrollment guide:

State	Window	Medicaid / CHIP	Marketplace
Alabama	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov
Alaska	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Arizona	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Arkansas	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
California	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Covered California
Colorado	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Connect for Health Colorado
Connecticut	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Access Health CT
Delaware	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
District of Columbia	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	DC Health Link
Florida	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov
Georgia	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	Georgia Access
Hawaii	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Idaho	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Your Health Idaho
Illinois	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Get Covered Illinois
Indiana	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Iowa	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Kansas	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov
Kentucky	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	kynect
Louisiana	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Maine	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	CoverME.gov
Maryland	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Maryland Health Connection
Massachusetts	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Massachusetts Health Connector
Michigan	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Minnesota	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	MNsure
Mississippi	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov
Missouri	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Montana	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Nebraska	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Nevada	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Nevada Health Link
New Hampshire	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
New Jersey	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Get Covered New Jersey
New Mexico	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	BeWell New Mexico
New York	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	NY State of Health
North Carolina	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
North Dakota	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Ohio	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Oklahoma	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Oregon	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Pennsylvania	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Pennie
Rhode Island	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthSource RI
South Carolina	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov
South Dakota	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Tennessee	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov
Texas	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov
Utah	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Vermont	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Vermont Health Connect
Virginia	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Virginia's Insurance Marketplace
Washington	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	Washington Healthplanfinder
West Virginia	60 days after the event	Expanded — newborn likely Medicaid/CHIP-eligible; year-round	HealthCare.gov
Wisconsin	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov
Wyoming	60 days after the event	Not expanded — adults may fall in the gap; CHIP still covers the child	HealthCare.gov

State exceptions

California: Covered California states the scope more generously than HealthCare.gov: if you had a baby, adopted a child, or began fostering a child, 'the entire family can use the special enrollment period to enroll in coverage.' Covered California's general rule is that most special-enrollment periods last 60 days from the life change; for a child received in foster care, it instructs applicants to indicate 'adopted a child' in the application drop-down.
Massachusetts: Massachusetts Health Connector policy NG-5 (Mid-Year Life Events, effective 11/10/2025) makes birth, adoption, placement for adoption, or foster care placement effective on the date of the event OR the first day of the month following the event — and notes that any premium tax credits or cost-sharing reductions only become effective on the first day of the first full month the person is enrolled. NG-5's allowable actions after a qualifying event also include changing enrollment to another plan (subject to metallic-tier and program-eligibility limits), which is broader than HealthCare.gov's baby-only plan choice for existing enrollees.
New York: New York is different before the birth: pregnancy itself is a qualifying event there. A 2015 state law (S5972, signed December 22, 2015 as Chapter 581) requires that a pregnant individual be allowed to enroll at any time after the commencement of the pregnancy, as certified by a licensed health care practitioner, with no fee or penalty for the special enrollment — and coverage is effective as of the first of the month in which the individual receives certification of the pregnancy. On HealthCare.gov, by contrast, pregnancy alone doesn't qualify; only the birth does.

Windows from the federal SEP rules; Medicaid expansion status and marketplace per state. Tap a state for its full guide.

Pin down your exact deadline and documents →

The special-enrollment checker gives you the precise window for your event and state, the documents the marketplace may request, and where to enroll.

Get the free new-parent checklist →

A printable, step-by-step checklist keyed to the 60-day clock — what to do, in what order, and by when.

Common mistakes

Key takeaways

Assuming the baby is 'probably covered' and not formally adding them — coverage isn't automatic; you have to report the event.
Trying to switch the whole family to a new plan — you can add the baby, but full plan shopping waits for Open Enrollment.
Skipping the Medicaid/CHIP check and paying for marketplace coverage the baby could have gotten free or cheaper.
Leaning on the employer plan's clock as if it's 60 days — it's often only 30, and it's the path people miss most.
Waiting on paperwork to enroll — enroll inside the window first, send documents when the marketplace asks.

A new baby is one of the few moments the rules are genuinely on your side: a long window, retroactive coverage, a likely subsidy bump, and a year-round safety net for the child. The only way to lose is to assume it's handled and let the 60 days slip. Report the event early, check Medicaid and CHIP, add the baby to what you have, and you're done.

Sources