Turning 19 in Texas: When Children's Medicaid and CHIP End, and What Comes Next

Children’s Medicaid and CHIP end when a Texas child turns 19, and for most 19 year olds there is no adult Medicaid category to move into. HHSC’s chart effective 1 April 2026 lists Children’s Medicaid for ages 6 to 18 at 133% of the federal poverty level¹, and the federal rule that gives children 12 months of continuous coverage names reaching age 19 as one of the events that ends it² (both checked 18 October 2026). What happens next depends on whether the young adult fits one of the few adult categories Texas runs, can join a parent’s plan, or can buy a Marketplace plan with a subsidy. If none of those fit, they are in the coverage gap on the day of their birthday.

My younger son aged out of Children’s Medicaid at the end of a school year, and I found out from the pharmacy. I had read every letter about my own coverage for four years and not one about his, because his was the part that worked. That is the most common version of this story at the front desk too: a family that has never had to think about the child’s coverage, suddenly having to think about it in the month the child is leaving home.

What ends, and when

Children’s Medicaid stops at 19, and so does the continuous eligibility protection that keeps a child covered through income changes during the year. Under 42 CFR 435.926 a child under 19 has a 12 month continuous eligibility period, and the listed exceptions start with the child reaching age 19² (checked 18 October 2026). CHIP sits above Children’s Medicaid on the same HHSC chart, at 201% of the federal poverty level, and is also a program for children¹. How the two children’s programs divide a household by age and income is in CHIP and Children’s Medicaid in Texas.

The notice that coverage is ending arrives in the YourTexasBenefits account. Find it, and write down the last day of coverage, because every deadline below is counted from that date. If you think the decision is wrong, for example because the young adult does fit an adult category, a fair hearing can be requested within 90 days from the effective date of any HHSC action³ (checked 30 July 2026).

The adult categories that do exist at 19

A 19 year old keeps Texas Medicaid only if they fit an adult category, and there are very few. These are the realistic ones:

• Pregnant. Medicaid for Pregnant Women is on HHSC’s chart at 198% of the federal poverty level¹ (checked 18 October 2026). The details, including the 12 months of postpartum coverage, are in Medicaid for pregnant women in Texas.
• A parent or caretaker relative. The limit is about 15% of the federal poverty level on KFF’s January 2026 figure, the lowest parent threshold in the country⁴ (checked 30 July 2026). Very few working households fall under it.
• A young adult with a disability. Medicaid based on disability follows its own rules, and HHSC decides it. If your child has a long term condition, ask HHSC or 2-1-1 about it before the birthday rather than after.

Outside those, a non-disabled adult who is not pregnant and has no dependent child has no Medicaid category in Texas at any income. There is no threshold to fall under, because there is no pathway. The full list of categories is in Texas Medicaid eligibility.

Healthy Texas Women is the other program worth checking for a young woman. It covers women’s preventive and family planning services rather than full health coverage, and HHSC sets the age range and income limit; the details are in Healthy Texas Women.

Staying on a parent’s plan

If a parent has a plan that offers dependent coverage, a 19 year old can usually be added and stay on it until 26. That is HealthCare.gov’s own wording, and it adds that on a job-based plan it generally holds even if the young adult has got married, lives in or out of the parent’s home, is not claimed as a tax dependent, or turns down an offer of job-based coverage of their own. It also notes that some states and plans have different rules, so check with the employer or the plan⁵ (checked 18 October 2026).

Marketplace plans are stricter. HealthCare.gov says a parent can include a young adult on their Marketplace application if they plan to claim them as a tax dependent, with an exception if the parent pays the full cost without a tax credit⁵ (checked 18 October 2026). Coverage on a parent’s Marketplace plan can continue through 31 December of the year the young adult turns 26.

Adding a child to a parent’s job-based plan usually has its own deadline set by the employer. Ask the human resources office as soon as the HHSC notice arrives.

A Marketplace plan of their own

Losing Children’s Medicaid or CHIP opens a Marketplace special enrollment period, with 90 days after the loss to choose a plan. Federal rule 45 CFR 155.420 sets the general window at 60 days from a triggering event, allows choosing a plan before a loss of coverage, and gives a person who loses Medicaid or CHIP 90 days after the loss⁶ (checked 18 October 2026). The rule excludes a voluntary termination, so this is the right window for an age-out but not for someone who simply cancels.

Whether a plan is affordable turns on household income. Premium tax credits start at 100% of the federal poverty level and run to 400%⁷ (checked 30 July 2026), and the enhanced credits expired at the end of 2025, so the pre-2021 rules apply for plan year 2026. The household itself is measured largely by tax filing, which means a 19 year old still claimed as a dependent is counted in the parents’ household and income. That calculation, and the mistakes that produce a wrong answer, are in what counts as income in Texas.

Below 100% of the poverty level there is no tax credit, and in Texas there is no Medicaid underneath it either. A 19 year old with a part time job and their own tax return can land exactly there. That is the mechanism set out in the Texas coverage gap, which reaches about 605,000 poor uninsured Texan adults aged 19 to 64⁸ (KFF estimates based on the 2024 American Community Survey, checked 30 July 2026).

If nothing fits

A 19 year old in the gap can still be seen, at a community health center on a sliding scale, through the county or hospital district program, and in an emergency room in an emergency. A federally funded health center must run a sliding fee discount schedule based on household size and income, with a full discount at or below 100% of the poverty level unless the center sets a nominal charge, and it must operate so that no patient is denied service due to inability to pay⁹ (checked 30 July 2026). The discount covers the center’s own charges, so outside labs, imaging and specialists may be billed separately. How the tiers work is in how the sliding scale works.

Register before the coverage ends, not after. Moving a young adult’s ordinary care to a health center while they still have a card means the first visit, the paperwork and the income proof are done before anything is urgent. The wider map is in getting care without insurance in Texas.

A short checklist for the year before 19

Start about three months before the birthday, not on it.

1. Find the end date. Look in the YourTexasBenefits account for anything about the child’s coverage and note the last day.
2. Check the adult categories. Pregnancy, parenthood and disability are the ones that keep Medicaid; ask HHSC or 2-1-1 if any might apply.
3. Ask about a parent’s plan. Ring the employer’s human resources office and ask about adding a dependent under 26 and the deadline for doing it.
4. Price a Marketplace plan. Run the HealthCare.gov application with the household as it will be counted for taxes, and note the 90 day window after the loss.
5. Register at a health center anyway. It costs nothing to be registered, and it is the backstop if every other door closes.

None of this decides anybody’s case. HHSC decides Medicaid, and the Marketplace decides a tax credit. What a family can control is the timing, and with an age-out, timing is most of the problem.

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Figures and rules on this page were checked on the dates shown. Program rules change, and only HHSC and the Marketplace can decide a case. For free help, dial 2-1-1.