Why Texas Did Not Expand Medicaid: The History, and What Expansion Would Change

Texas is one of ten states that have not adopted the ACA Medicaid expansion; 41 states including the District of Columbia have adopted it. That is the whole of the fact, and this page sets out what the expansion is, how adoption became a state choice, and what the consequence is in Texas in numbers, without arguing for or against it¹ (checked 30 July 2026).

I sit with Texans at YourTexasBenefits for a living, and this subject reaches my desk in a very particular form. A man in his fifties, on his second appointment, read his notice out loud and then stopped in the middle of it, because he had worked out that the reason was not what he thought. He asked me whether it would have gone differently if he had earned more. It might have, and I explained why. Then he asked me what I thought the state ought to do about it, and my answer to that is the same every time: my job is to tell you what the rule is, where it is published and when it was last checked, and people who disagree with each other completely about the policy sit in the same waiting room and get the same answer from me.

That is the standard this page is written to. Nothing here is an eligibility determination, and only HHSC and the Marketplace can decide a case. Where a figure exists in this site’s verified set it appears with its date; where one does not, the page says so rather than filling the space.

What is the ACA Medicaid expansion?

It is a provision of the Affordable Care Act that creates a Medicaid eligibility category for low-income adults as a group, instead of only for the categories a state already operates. Traditional Medicaid is category based: a person qualifies by being a child, being pregnant, being a parent or caretaker relative at a low income, or through a pathway tied to age, blindness or disability, and then by meeting the income test attached to that category. Texas Medicaid works that way today² (checked 30 July 2026).

The expansion category is different in kind, because it is defined by income rather than by circumstance. In a state that adopts it, an adult below the expansion threshold is eligible whether or not any other category fits, and that group sits underneath the Marketplace premium tax credit range, which begins at 100% of the federal poverty level³ (checked 30 July 2026). The two programs are designed to meet at that line.

This site does not publish the expansion’s income threshold. It is a widely quoted number, and it is not yet in this site’s verified figure set, so it is not printed here. Medicaid.gov’s eligibility standards table is where the current state by state figures are published⁴, and the number will appear on this page once it has been read off a primary source and dated.

How did adoption become a state choice?

The expansion was written into the Affordable Care Act as a nationwide change, and litigation over the Act converted it into a state option. The result is that each state decides for itself, and the decision stays open: a state that has not adopted the expansion can adopt it later, and the national count moves when one does.

That is why the figure to watch is a count of states rather than a deadline. KFF maintains the tally, and as at 30 July 2026 it stands at 41 states including the District of Columbia adopted and 10 not adopted¹. KFF’s coverage gap analysis published on 27 July 2026 works from the same ten states and names Texas among them⁵.

This page does not publish the case citation or the date of the court decision that produced the state option, for the same reason it does not publish the threshold: neither is in the verified figure set yet. The structural point stands without them, and it is the point that matters to a household: in Texas the decision has not been taken, so the categories in force are the ones described below.

What the state operates instead

Texas runs a large Medicaid program, and the gap in it is specific rather than general. These are HHSC’s own published limits as percentages of the federal poverty level, from the Texas Works Handbook chart effective 1 April 2026⁶ (all checked 30 July 2026).

Program	Percent of FPL	HHSC code
Children’s Medicaid, infants under 1	198%	TP 43
Children’s Medicaid, ages 1 to 5	144%	TP 48
Children’s Medicaid, ages 6 to 18	133%	TP 44
CHIP	201%	TA 84
CHIP Perinatal	202%	TA 85
Medicaid for Pregnant Women	198%	TP 40
Healthy Texas Women	204.2%	TA 41
Transitional Medicaid	185%	TP 07

Five of those percentages are independently matched by the federal eligibility standards table, which lists Texas children at 198%, 144% and 133%, separate CHIP at 201% and pregnant women at 198%⁴. Two of the categories most people assume exist are the ones that do not:

• A non-disabled, non-pregnant adult without dependent children has no Medicaid category in Texas at any income. There is no threshold to fall under, because there is no pathway.
• A parent or caretaker relative qualifies only up to 15% of the federal poverty level, the lowest parent threshold in the nation⁷ (KFF, as of January 2026), which is roughly $4,100 a year for a household of three at the 2026 guidelines³ (checked 30 July 2026). Texas sets that standard in dollars by household size, so the percentage moves every January regardless of state action.

Which income counts toward any of these is a separate question, and a frequent source of wrong self-assessment: what counts as income in Texas. The category structure in full is in Texas Medicaid eligibility, and the wider set of state programs in Texas health programs.

What is the measurable consequence?

The coverage gap: about 605,000 poor uninsured Texan adults aged 19 to 64 whose income is above the categories Texas operates and below the 100% floor where premium tax credits begin. That is roughly half the national total of about 1.2 million across the ten non-expansion states⁵ (KFF estimates based on the 2024 American Community Survey, and a national analysis published 27 July 2026, both checked 30 July 2026).

Two figures put that in proportion, and keeping them separate matters:

• The gap is not the uninsured population. Texas recorded 16.7% of residents uninsured in 2024 against a national 8.2%, the highest rate in the country, which is roughly one in six Texans and about 5.2 million people. Among adults aged 19 to 64 the rate was 21.6%⁸ (2024 data, checked 30 July 2026). Most uninsured Texans are uninsured for reasons other than the gap, including cost above the subsidy floor.
• Affordability moves independently of this question. The ACA’s enhanced premium tax credits expired at the end of 2025 and are not in force for plan year 2026. KFF calculates that premium payments net of tax credits rose 58% on average for people who signed up for 2026 coverage, and that in Texas sign-ups rose by about 206,000 (a 5% increase) while effectuated enrollment fell by about 146,000 (a 4% decrease)⁹ (checked 30 July 2026). The position for plan year 2027 was still open when this page was last checked on 30 July 2026.

The mechanism of the gap, and why an identical reapplication produces an identical answer, is set out in the Texas coverage gap.

What would expansion change, and what would it not?

Structurally, it would create an adult category where none exists, which is the single thing producing the gap. Stated as mechanics rather than as prediction:

• It would change the bottom edge. An eligibility category defined by income would sit below the premium tax credit range, so the space between the two programs would close for people who met the new category’s rules.
• It would not change the top edge. Premium tax credits would still run to 400% of the federal poverty level, and the subsidy cliff that returned for plan year 2026 sits entirely above this question³ (checked 30 July 2026). See how Marketplace subsidies work.
• It would not change the children’s and pregnancy programs, which already reach far higher incomes than any adult pathway here: CHIP and Children’s Medicaid in Texas and Medicaid for pregnant women in Texas.
• It would not by itself change what care is available in a given town, which turns on who practices there and which facilities operate, a separate subject from eligibility.

The arguments made on each side are real and this page does not adjudicate them. Those who favor adoption point to the coverage gap and to the federal share of the cost of the expansion category. Those against point to long-term exposure in the state budget and to uncertainty about whether the federal share persists over time. Both positions rest on figures, and the honest position for a page like this one is the next section.

What this page does not publish, and why

No cost estimate, no projected coverage gain and no state budget figure appears anywhere on this page, because none of them is in this site’s verified figure set. This is the section a reader is most entitled to be annoyed by, so here is the reasoning in full.

A number on this subject is not decoration. It is the thing an argument is built on, and estimates vary widely with the assumptions behind them: which year, whose model, what is counted as a cost and what is counted as an offset. Publishing one without having read it off its source, dated it and understood its assumptions would attach this site’s name to somebody else’s assumptions. Doing that on a contested policy question is how a reference page turns into a leaflet.

So the following are named rather than filled:

• The expansion income threshold. Source of record: Medicaid.gov’s eligibility standards table⁴.
• The federal matching rate for the expansion category, and how it compares with the traditional Medicaid match.
• Cost estimates and state budget effects. Legislative Budget Board fiscal notes and HHSC budget documents are the primary sources; KFF and MACPAC publish independent analysis.
• Projected coverage gains, including any estimate of how many of the 605,000 would enroll.
• Legislative history in detail, including sessions, bill numbers and vote counts.

Each will appear here when it has been read off a primary source and stamped with a check date, and not before. The general rule behind that is worth stating once: a figure that is slightly wrong in the strict direction stops somebody applying for something they would have received, and a figure that is slightly wrong in the generous direction sends them to an office to be turned away. On a policy page the same discipline protects the reader from being argued at with numbers nobody checked.

What has changed in Texas coverage, and what has not

Texas coverage policy is not static, and the recent movement has been in the pregnancy and children’s programs rather than in adult eligibility. Postpartum Medicaid coverage now “lasts during pregnancy and up to 12 months after the baby is born” in HHSC’s own words, an entitlement created by House Bill 12 of the 88th Legislature, Regular Session, 2023¹⁰ (checked 30 July 2026).

The comparison that matters is with CHIP Perinatal, which the same HHSC page describes as covering “care during pregnancy and two doctor visits within 60 days after the pregnancy ends”¹⁰. The 12 month figure belongs to Medicaid, and a reader on CHIP Perinatal who applies it to their own case is wrong by ten months, so the program name on the approval letter is the thing to check.

Alongside that, children’s eligibility here reaches 198% and 201% of the federal poverty level⁶ (checked 30 July 2026) while the parent standard sits at 15%. The distance between those two lines is the clearest description of Texas coverage policy available in numbers, and it is why the most common outcome on a Texas household application is a split decision.

Where this leaves a household today

Apply rather than self-screen, then work sideways instead of reapplying. A single application at YourTexasBenefits is assessed against several programs at once¹¹, which is why children are frequently approved on the same form that denies the adults. That is a normal Texas outcome and not a sign the form was completed wrongly. If a decision was wrong on the facts, appealing a denial in Texas covers the fair hearing and its deadline.

If no category fits, the productive questions change from eligibility to access, and they have real answers: getting care without insurance in Texas covers the sliding scale, the free clinics and the county programs, and county indigent health care program covers the one that is organized by address rather than by category. 2-1-1 Texas will connect you to local help and to certified counselors¹², and applying through YourTexasBenefits covers the documents and the timelines. For the full map of routes into coverage here, start at health coverage in Texas.

This page takes no position on whether Texas ought to adopt the expansion, and it never will. What it does is state the count of states, name the categories in force, date every figure and say plainly which numbers it does not have. Texas Care Map is independently published, with no affiliation to the State of Texas, HHSC, the Texas Department of Insurance or the Centers for Medicare and Medicaid Services.