What Is CHIP (the Children's Health Insurance Program)?
For kids whose family income is just above the Medicaid line, CHIP is often the coverage that actually fits.
The program built for the gap between Medicaid and "too much to qualify"
If you're asking what is CHIP, the Children's Health Insurance Program, the short answer is that it exists specifically to cover a gap: children in households whose income is too high to qualify for Medicaid, but who still can't easily afford private health insurance on their own. CHIP is jointly funded by the federal government and individual states, much like Medicaid, and in many states it is administered together with Medicaid so families apply through the same portal and may not even realize which specific program their child ends up enrolled in.
Who CHIP generally covers
CHIP generally covers children up to age 19 in households with income above the Medicaid threshold but below a higher state-set CHIP limit. Some states also use CHIP funding to cover pregnant women through a related pathway. Because each state sets its own CHIP income limits — often expressed as a percentage of the federal poverty level, and typically set noticeably higher than the state's Medicaid limit for children — a family that doesn't qualify for Medicaid in their state may still qualify their children for CHIP at a meaningfully higher income level.
What CHIP typically covers
- Routine checkups and well-child visits
- Immunizations
- Doctor visits for illness or injury
- Prescriptions
- Dental and vision care in most states
- Hospital and emergency care
Exact covered services and any premiums or copays vary by state, since CHIP, like Medicaid, gives states significant flexibility within federal minimum standards.
How CHIP relates to Medicaid, practically speaking
In many states, CHIP is run as a Medicaid expansion program for children specifically, using the same eligibility system and often the same application. In other states, CHIP is a separate, distinct program with its own name and branding at the state level, sometimes charging modest monthly premiums that Medicaid for children generally does not. Either way, the practical starting point is the same: apply through Healthcare.gov or your state's Medicaid/CHIP portal, and the system will determine which specific program — Medicaid or CHIP — your child's household qualifies for based on income.
Does CHIP cost anything?
Depending on the state and the household's income level within CHIP's range, some states charge modest monthly premiums or small copays for certain services, while others provide CHIP at no cost, similar to Medicaid. These amounts, where they exist, are generally capped relative to a percentage of household income specifically so they remain affordable. Check your state's current CHIP premium structure directly, since it changes periodically and differs meaningfully from state to state.
Applying for CHIP
The application process mirrors Medicaid: proof of household income, proof of residency, and identifying information for the child and the applying parent or guardian. Because many states process Medicaid and CHIP applications together, you generally do not need to determine in advance which program applies — the state will assess your household against both sets of income limits from a single application. See our guide on what documents you need to apply for Medicaid for the general document list, which applies to CHIP applications as well in most states.
What to do next
If your household's income is above your state's Medicaid limit but you're unsure whether it falls within CHIP range, the most reliable step is simply applying — the determination happens automatically as part of the same process, and there's no cost or downside to applying and being told a specific program doesn't fit. If your household income is above even the CHIP limit, our guide on Medicaid vs the ACA marketplace explains where subsidized marketplace coverage for children and the rest of the family fits in.
Renewing CHIP coverage
Like Medicaid, CHIP eligibility is periodically re-verified, generally on an annual basis, through the same redetermination process. A renewal notice will typically arrive by mail or through your state's online portal, and missing the response deadline can end a child's CHIP coverage even if the household remains eligible. Our guide on Medicaid redetermination and renewal covers this process in detail, and the same practical advice — keep your contact information updated, respond promptly — applies equally to CHIP.
What happens if your child ages out of CHIP
CHIP eligibility generally ends at age 19 in most states, at which point a young adult would need to look at other coverage options — potentially Medicaid under adult eligibility rules if the household or the individual's own income qualifies, or subsidized marketplace coverage through Healthcare.gov. Some states allow a short transition window or automatic referral to marketplace coverage as a child ages out, so it's worth asking your state CHIP program directly what happens as your child approaches 19, rather than assuming coverage will simply lapse without any next step being offered.
CHIP during pregnancy
A number of states extend CHIP-funded coverage to pregnant women whose income is above the state's Medicaid limit for pregnancy-related Medicaid but below the CHIP threshold, sometimes called the "unborn child" option or a similarly named state-specific pathway. If you are pregnant and your income seems too high for standard Medicaid, it is worth checking whether your state offers this kind of CHIP-funded pregnancy coverage before assuming no public coverage option exists.
How CHIP funding differs from ordinary Medicaid funding
CHIP is funded through a separate federal allotment to each state, distinct from Medicaid's open-ended federal matching structure, which historically meant CHIP funding levels needed periodic congressional reauthorization in a way ordinary Medicaid funding did not. In practice this has rarely disrupted coverage for enrolled families, since states have generally managed their CHIP programs continuously even through funding renewal periods, but it is a structural difference worth knowing if you ever read about CHIP funding debates in the news and wonder whether it affects your child's actual coverage — for currently enrolled families, it typically does not.
What to do if you have children with different eligibility outcomes
It is entirely normal, and not a sign of an error, for siblings in the same household to end up on different programs — one child on Medicaid and another on CHIP — depending on how each state structures its specific age-based or category-based income brackets. If this happens, note that you may need to interact with two program-specific portals, provider networks, or renewal schedules even though both children are in the same household, so keep both sets of paperwork and renewal dates organized separately rather than assuming a single family-wide renewal date covers everyone.
What to do if your state's CHIP program uses a different name
Many states brand their CHIP program under a unique name rather than calling it "CHIP" directly on enrollment materials, which can make it harder to recognize as the same federal program discussed here. If you're searching for children's coverage in your state and don't see the word "CHIP" anywhere, search instead for "[your state] children's health insurance" or simply start an application through Healthcare.gov, which will route your child to the correct program under whatever local name it uses, without you needing to identify the specific brand name in advance.
This is general information about US Medicaid, CHIP, and ACA marketplace programs, not personalized eligibility or legal advice. Rules vary by state and by individual circumstances — confirm current details with your state Medicaid agency or Healthcare.gov.