Becoming a U.S. citizen, U.S. national, or lawfully present resident is a qualifying event that triggers a 60-day special enrollment period in the exchanges.

Becoming a U.S. citizen, U.S. national, or lawfully present resident is a qualifying event that triggers a 60-day special enrollment period.

For the last two decades, roughly one million people per year have been granted lawful permanent residence in the United States. In addition, there are about 10.5 million undocumented immigrants in the U.S., although that number has fallen from a high of more than 12 million in 2007.

New immigrants can obtain health insurance from a variety of sources, including employer-sponsored plans, the individual/family market, and health plans that are marketed specifically for immigrants.

However, recent immigrants are often confused in terms of what health insurance options are available to them. Persistent myths about the ACA have made it hard to discern what’s true and what’s not in terms of how the ACA applies to immigrants.

So let’s take a look at the health insurance options for immigrants, and how they’ve changed – or haven’t changed – under the ACA and various state-based approaches.

Can immigrants select from any available health plans during open enrollment?

Yes, as long as they’re lawfully present in the U.S.

(Note that there is one exception: DACA recipients are considered lawfully present during their deferred action period, but they are not eligible to enroll in health coverage through the exchange. The Biden administration proposed a rule change in 2023 that would allow DACA recipients to enroll in health coverage through the exchange. The administration was targeting a November 1, 2023 effective date for this rule change, to allow DACA recipients an opportunity to select a health plan during the open enrollment period for 2024 coverage, but that did not happen. As of early 2024, the proposed rule had not yet been finalized.)

As discussed below, some states are starting to establish programs that provide health coverage to eligible enrollees regardless of immigration status.

Open enrollment for individual-market health insurance coverage runs from November 1 to January 15 in most states, although some states have different deadlines. During this window, any non-incarcerated, lawfully present U.S. resident (except DACA recipients, for the time being) can enroll in a health plan through the exchange in their state. It’s also an option to enroll outside the exchange during that window, although financial assistance is not available outside the exchange.

Special enrollment period for new citizens

When you become a new U.S. citizen or gain lawfully present status, you’re entitled to a special enrollment period in your state’s exchange. You’ll have 60 days from the date you became a citizen or a lawfully present resident to enroll in a plan through the exchange, with subsidies if you’re eligible for them.

There are a variety of other special enrollment periods that apply to people experiencing various qualifying life events. These special enrollment periods are available to immigrants and non-immigrants alike.

Are recent immigrants eligible for ACA subsidies?

Yes. The ACA called for the expansion of Medicaid eligibility to all adults with income up to 138% of the poverty level, and no exchange subsidies for enrollees with income below the poverty level, since they’re supposed to receive Medicaid coverage instead. But Medicaid isn’t available in most states to recent immigrants until they’ve been lawfully present in the U.S. for five years. To get around this problem, Congress included a provision in the ACA to allow recent immigrants to get subsidies in the exchange regardless of how low their income is.

Low-income, lawfully present immigrants – who would be eligible for Medicaid based on income, but are barred from Medicaid because of their immigration status – are eligible to enroll in plans through the exchange with full subsidies during the five years when Medicaid is not available. (For reference, this issue is detailed in ACA Section 1401(c)(1)(B), and it appears on page 113 of the text of the ACA.) Their premiums for the second-lowest-cost Silver plan are entirely covered by the premium subsidy through at least the end of 2025. (The elimination of premiums at this income level is due to the American Rescue Plan and its enhancement of the ACA’s premium subsidies. These provisions have been extended through 2025 by the Inflation Reduction Act.)

Lawmakers included subsidies for low-income immigrants who weren’t eligible for Medicaid specifically to avoid a coverage gap. Ironically, there are currently about 1.9 million people in nine states who are in a coverage gap that exists because those states have refused to expand Medicaid.  Congress went out of its way to ensure that there would be no coverage gap for recent immigrants. But they couldn’t anticipate that the Supreme Court would make Medicaid optional for the states and that some states would block expansion, leading to a coverage gap for millions of U.S. citizens.

Obamacare subsidy calculator *




Add ages of other family members to be insured.


Include yourself, your spouse, and children claimed as dependents on your taxes.


Modified Adjusted Gross Income (MAGI)

For most taxpayers, your MAGI is close to AGI (Line 11 of your Form 1040).

* This tool provides ACA premium subsidy estimates based on your household income. does not collect or store any personal information from individuals using our subsidy calculator.

Estimated annual subsidy

Provide information above to get an estimate.

Can recent immigrants 65 and older buy exchange health plans?

Yes. Most Americans become eligible for Medicare when they turn 65, and no longer need individual-market coverage. However, recent immigrants are not eligible to buy into the Medicare program until they’ve been lawfully present in the U.S. for five years.

Before 2014, this presented a conundrum for elderly immigrants, since individual-market health insurance generally wasn’t available to anyone over the age of 64. But as a result of the ACA, policies in the individual market are available on a guaranteed-issue basis, regardless of age. And if the plan is purchased in the exchange, subsidies are available based on income, just as they are for younger enrollees. (It’s unlawful to sell an individual-market plan to anyone who has Medicare, but recent immigrants cannot enroll in Medicare.)

The ACA also limits premiums for enrollees age 64 or older to three times the premiums charged for an enrollee who is 21. (A few states limit that further, and two states — New York and Vermont — do not allow premiums to vary at all based on age.) So there are essentially caps on the premiums that apply to elderly recent immigrants who are using the individual market in place of Medicare, even if their income is too high to qualify for subsidies.

Are undocumented immigrants eligible for ACA coverage?

No, unless a state has established a program for this purpose. Although the ACA provides benefits to U.S. citizens and lawfully present immigrants alike, it does not provide any benefits for undocumented immigrants.

The ACA specifically prevents non-lawfully present immigrants from enrolling in coverage through the exchanges (section 1312(f)(3)). And they are also not eligible for Medicaid under federal guidelines. So the two major cornerstones of coverage expansion under the ACA are not available to undocumented immigrants.

Some states — described in more detail below — have implemented programs to cover undocumented immigrants, particularly low-income children and/or people who are pregnant.

It’s important to understand that if you’re lawfully present, you can enroll in a plan through the exchange even if some members of your family are not lawfully present. Family members who aren’t applying for coverage are not asked for details about their immigration status. And clarifies that the immigration details you provide to the exchange during your enrollment and verification process are not shared with any immigration authorities.

How are states making efforts to provide health coverage to undocumented immigrants?

Several states use their own funds to provide Medicaid coverage to undocumented immigrants with low incomes.

For example:

  • Oregon’s Cover All Kids program provides coverage to kids in households with income up to 305% of the poverty level, regardless of immigration status.
  • California has had a similar program for children since 2016. And as of 2024, all adults in California whose income makes them eligible for Medi-Cal (Medicaid) can enroll regardless of immigration status.
  • New York covers kids and people who are pregnant in its Medicaid program regardless of income, and covers emergency care for other undocumented immigrants in certain circumstances.
  • Connecticut’s HUSKY (Medicaid/CHIP) program covers income-eligible undocumented kids up to age 12, and this will extend to age 15 starting in July 2024.
  • Vermont created the Immigrant Health Insurance Plan, starting in 2022, that provides health coverage to children under age 19 and pregnant women who are not eligible for Medicaid due to their immigration status. Legislation introduced in 2023 (S.52) would extend this to all adults.
  • Starting in 2025, Colorado will provide Medicaid coverage to undocumented pregnant people and children who would otherwise be eligible based on income.
  • Hawaii is considering legislation in 2024 (carried over from 2023) that would allow the state to “purchase health care services” for uninsured immigrants who aren’t eligible for Medicaid, CHIP, or coverage through the exchange, and whose incomes is up to 150% of the poverty level.

But what about allowing undocumented immigrants to purchase coverage through a state-run exchange, either at full price or with state-funded subsidies? That idea has been gaining traction in recent years.

It was first considered by California in 2016 (via legislation and a 1332 waiver submission to the federal government). But in January 2017, just two days before Donald Trump’s inauguration, California withdrew its waiver proposal, citing concerns that the Trump administration might use information from Covered California to deport undocumented immigrants.

New York lawmakers considered legislation in 2019 that would have allowed undocumented immigrants to purchase full-price coverage in NY’s state-based exchange, but it did not progress in the legislature. As noted in the text of the legislation, New York would have needed to obtain federal permission to implement this law if the state had enacted it.

But other states are now making this idea a reality:

  • Colorado debuted a program in the fall of 2022 that allows undocumented immigrants to enroll in qualified health plans via a separate platform (instead of using the state-run exchange), so federal permission was not required. Colorado provided subsidies to the first 10,000 people who enrolled through that platform, and reached that number within the first several weeks the program was available. For 2024, Colorado increased the number of subsidy-eligible spots to 11,000 and filled all of them within the first two days of open enrollment.
  • Washington state received federal approval to allow undocumented immigrants to enroll in coverage through the state-run exchange starting in the fall of 2023 (for 2024 coverage). State-funded subsidies are available for undocumented enrollees, but no federal subsidies.

Maryland is considering legislation in 2024 that would direct the state to seek federal permission to allow undocumented immigrants to use the state-run exchange starting in 2026, with state-funded subsidies available to eligible enrollees.) But similar bills were unsuccessful in Maryland in 2023.)

How many undocumented immigrants are uninsured?

In terms of the insurance status of undocumented immigrants, the numbers tend to be rough estimates, since exact data regarding undocumented immigrants can be difficult to pin down. But according to Pew Research data, there were 10.5 million undocumented immigrants in the U.S. as of 2021.

According to a recent Kaiser Family Foundation analysis, undocumented immigrants are significantly more likely to be uninsured than U.S. citizens: 45% of undocumented immigrants are uninsured, versus about 8% of citizens.

So more than half of the undocumented immigrant population has some form of health insurance coverage. Kaiser Family Foundation’s Larry Levitt noted via Twitter that “some are buying non-group, but I’d agree that it’s primarily employer coverage.” Undocumented immigrants also have the option to enroll in student health plans and individual (i.e., non-group) plans purchased off-exchange (on-exchange, enrollees are required to provide proof of legal immigration status).

Uninsured undocumented immigrants do have access to some healthcare services, regardless of their ability to pay. Federal law (EMTALA) requires Medicare-participating hospitals to provide screening and stabilization services for anyone who enters their emergency rooms, without regard for insurance or residency status.

Since emergency rooms are the most expensive setting for healthcare, local officials in many areas have opted for less expensive alternatives. Of the 25 U.S. counties with the largest number of undocumented immigrants, the Wall Street Journal reports that 20 have programs in place to fund primary and surgical care for low-income uninsured county residents, typically regardless of their immigration status.

Do ACA exchanges check the status of immigrants who want to buy coverage?

Yes. As part of the enrollment process, the exchanges are required to verify lawfully present status. In 2014, enrollments were terminated for approximately 109,000 people who had initially enrolled through, but who were unable to provide the necessary proof of legal residency (enrollees generally have 95 days to provide documentation to resolve data matching issues for immigration status).

There’s concern among consumer advocates that some lawfully present residents have encountered barriers to enrollment – or canceled coverage – due to data-matching issues. If you’re lawfully present in the U.S. (which includes a wide range of immigration statuses), you can legally use the exchange, and qualify for subsidies if you’re otherwise eligible. Be prepared, however, for the possibility that you’ll have to prove your lawfully present status. (The details of how resolves immigration status data matching issues are explained here.)

There are enrollment assisters in your community who can help you with this process if necessary. But if you’re not lawfully present, you cannot enroll through the exchange in most states, even if you’re willing to pay full price for your coverage. You can, however, apply for an ACA-compliant plan outside the exchange, as there’s no federal restriction on that.

Is short-term health insurance available for purchase in your state?Recent immigrants who are eligible for premium subsidies in the exchange will likely be best served by enrolling in a plan through the exchange — the coverage will be comprehensive, with no limits on annual or lifetime benefits and no exclusions for pre-existing conditions.

But healthy applicants who aren’t eligible for subsidies — including those who don’t have adequate proof of immigration status — may find that a short-term policy is their best option.

With any insurance plan, it’s important to read the fine print and understand the ins and outs of the coverage. That’s particularly important with short-term plans, as they’re not regulated by federal law (other than the rules that limit their terms to no more than 364 days, and total duration to no more than 36 months including renewals). Some states have extensive rules for short-term plans, so availability varies considerably from one state to another (you can click on a state on this map to see how the state regulates short-term plans).

Travel insurance plans are another option, particularly for people who will be in the U.S. temporarily and who don’t qualify for premium subsidies in the exchange. Just like short-term plans, travel insurance policies are not compliant with the ACA, so they generally won’t cover pre-existing conditions, tend to have gaps in their coverage (since they don’t have to cover all of the essential health benefits), and will come with limits on how much they’ll pay for an enrollee’s medical care. But if the other alternative is to go uninsured, a travel insurance plan is far better than no coverage at all.

Trump administration’s public charge rule and immigrant health insurance rule: Both revoked by the Biden administration

In August 2019, the Trump administration finalized rule changes for the government’s existing “public charge” policy, after proposing changes nearly a year earlier. And in October 2019, President Trump issued a proclamation to suspend new immigrant visas for people who were unable to prove that they’d be able to purchase (non-taxpayer funded) health insurance within 30 days of entering the US “unless the alien possesses the financial resources to pay for reasonably foreseeable medical costs.”

But both of those rules were reversed by the Biden administration: The public charge rule was revoked in April 2021, and the immigrant health insurance coverage rule was revoked in May 2021.

Even before they were initially blocked by the courts, the new public charge rule and the new immigrant health insurance requirement did not change anything about eligibility for premium subsidies in the exchange — subsidies continued to be available to legally present residents who met the guidelines for subsidy eligibility. But these new rules were designed to make it harder for people to enter the US in the first place, and had the effect of deterring otherwise eligible people from applying for financial assistance with their health coverage, including assistance via Medicaid or CHIP for their US-born children.

Here’s the backstory on these rules:

Public charge rule (revoked by the Biden administration in April 2021)

The public charge rule was initially delayed for a few months amid legal challenges, but it was implemented in February 2020. It was vacated by a federal judge in November 2020, but that order was soon stayed by the Seventh Circuit Court of Appeals, allowing the Trump administration’s version of the public charge rule to continue to be implemented while litigation on the case continues. Soon thereafter, the Ninth Circuit Court of Appeals blocked the rule from being used by immigration officials in 18 states and DC, but it could still be used in the majority of the states until the Biden administration revoked it in April 2021.

Advocates noted that the rule, which was proposed in 2018, began to lead to coverage losses immediately, even though it didn’t take effect until 2020. The rule resulted in numerous immigrants forgoing the benefits for which they and their children were eligible, out of fear of being labeled a public charge. Georgetown University’s Health Policy Institute, Center for Children and Families noted in 2020 that the public charge rule change was one of the factors linked to the sharp increase in the uninsured rate among children in the U.S.

The longstanding public charge rule states that if the government determines that an immigrant is “likely to become a public charge,” that can be a factor in denying the person legal permanent resident (LPR) status and/or entry into the U.S.

For two decades, the rules excluded Medicaid (except when used to fund long-term care in an institution) from the services that are considered when determining if a person is likely to become a public charge. The new rule changed that: Medicaid, along with Supplemental Nutrition Assistance Program (SNAP), Temporary Assistance for Needy Families (TANF), and several low-income housing programs were added to the list of services that would push a person into the “public charge” category. The National Immigration Law Center notes that the public charge assessment did not apply to lawful permanent residents who are renewing their green cards.

Critically, CHIP and ACA premium subsidies were not included among the new additions to the public charge determination, although the final rule did incorporate a “heavily weighted positive factor” that essentially gave the person credit for having private health insurance without using the ACA’s premium subsidies. (In other words, a person’s likelihood of being labeled a public charge would decrease if they have health insurance without premium subsidies, but enrolling in a subsidized plan through the exchange would not count as a negative factor in determining whether the person was likely to become a public charge.)

Very few new immigrants are eligible for Medicaid, due to the five-year waiting period that applies in most cases. But immigrants who have been in the U.S. for more than five years can enroll in Medicaid, and more recent immigrants can enroll their U.S.-born children in Medicaid; these are perfectly legal uses of the Medicaid system. But even before the new rule was scheduled to take effect, advocates noted that it was making immigrants fearful about applying for subsidies, CHIP, or health coverage in general — for themselves as well as for their family members who were U.S. citizens and thus entitled to the same benefits as any other citizen.

The public charge rule was slated to take effect on October 15, 2019, but federal judges blocked it on October 11, temporarily delaying implementation. In January 2020, the Supreme Court ruled (in a 5-4 vote) that the public charge rule could take effect while an appeal was pending, and it took effect in February 2020. The Supreme Court declined to temporarily pause the rule amid the COVID pandemic. But U.S. District Judge Gary Feinerman, in Chicago, vacated the rule in its entirety, nationwide, as of November 2020. Just two days later, however, the Seventh Circuit Court of Appeals stayed Judge Feinerman’s order, allowing the Trump administration’s version of the public charge rule to continue to be implemented while litigation on this case continues. On December 2, however, the Ninth Circuit Court of Appeals blocked the rule from being applied in 18 states and DC. So as of December 2020, the public charge rule could be used by immigration officials in some states but not in others.

Health insurance proclamation for new immigrants

If the health insurance proclamation for new immigrants had been allowed to take effect, the new rules wouldn’t have applied to immigrant visas issued prior to November 3, 2019 (the date the rules were slated to take effect). But people applying to enter the US on an immigrant visa after that date would have had to prove that they had or would imminently obtain health insurance, or that they had the financial means to pay for “reasonably foreseeable medical costs” — which was certainly a very grey area and very much open to interpretation.

The rule would not have allowed new immigrants to plan to enroll in a subsidized health insurance plan in the exchange. Premium subsidies would have continued to be available to legally present immigrants, but new immigrants entering the US on an immigrant visa would have had to show that their plan for obtaining health insurance did not involve premium subsidies in the exchange. And applicants cannot enroll in an ACA-compliant plan unless they’re already living in the US, so people trying to move to the US would not have been able to enroll until after they arrived.

There were also concerns about the logistics of getting a plan in place if a person wanted to sign up for a full-price ACA-compliant plan: Gaining lawfully present immigration status is a qualifying event that allows a person to enroll in a plan through the exchange (but not outside the exchange), but the special enrollment period is not available in advance; it starts when the person gains their immigration status.

At that point, the person has 60 days to enroll. Before 2022, enrollments had to be completed by the 15th of the month to have the coverage take effect the first of the following month. If they signed up after the 15th of the month, coverage wouldn’t start until the first of the second following month, which might be more than 30 days after the person arrives in the country (as of 2022, and most of the state-run exchanges allow coverage to take effect the first of the month following enrollment, regardless of which calendar day the person enrolls[efn_note]”Patient Protection and Affordable Care Act; HHS Notice of Benefit and Payment Parameters for 2021; Notice Requirement for Non-Federal Governmental Plans” U.S. Department of Health & Human Services. May 14, 2020.). In short, the requirements of the proclamation didn’t necessarily match up with the logistics of how enrollment worked in the ACA-compliant market at that point.

Under the terms of the proclamation, short-term health insurance plans would have been considered an acceptable alternative for new immigrants. But short-term plans often have a requirement that non-US-citizens have resided in the US for a certain amount of time before enrolling, which would make them unavailable for people living outside the US who are applying for an immigrant visa. A travel/expat policy (which has a limited duration, just like short-term coverage) would be available in these scenarios, however, and can be readily obtained by healthy people who are going to be living or traveling outside of their country of citizenship.

The health insurance rules for immigrants were initially blocked by the courts, just like the public charge rule changes. In November 2019, the day before the proclamation regarding health coverage for immigrants was to take effect, a 28-day restraining order was issued by District Judge Michael H. Simon. Judge Simon subsequently issued a preliminary injunction, blocking the rule from taking effect. And an appeals court panel upheld the ruling in May 2020. But in December 2020, a three-judge panel from the U.S. Court of Appeals for the Ninth Circuit vacated the preliminary injunction, issuing a 2-1 ruling in favor of allowing the Trump administration’s immigrant health insurance requirements to be implemented.

The Biden administration then revoked the immigrant health insurance requirement in May 2021.

Under a Democratic administration, would health insurance assistance for immigrants expand?

The Medicare for All bills introduced by Senator Bernie Sanders and by Representative Pramila Jayapal would expand coverage to virtually everyone in the U.S., including undocumented immigrants. Some members of Democratic leadership prefer a more measured approach, similar to Hillary Clinton’s 2016 healthcare reform proposal, which included a provision similar to California’s subsequently withdrawn 1332 waiver proposal. (It would have allowed undocumented immigrants to buy coverage in the exchanges, although without subsidies.)

Joe Biden’s campaign health care plan included a similar proposal to allow undocumented immigrants to buy into a new public option program, albeit without any government subsidies.

But over the first decade of exchange operation, roughly 85% of exchange enrollees have been eligible for subsidies, and only 15% have paid full price for their coverage (the percentage of subsidy-eligible enrollees is even higher now, because the American Rescue Plan eliminated the “subsidy cliff” and that will continue to be the case through at least 2025). So although public option plans could be expected to be a little less expensive than private plans, it’s unclear how many undocumented immigrants would or could actually enroll in public option coverage without financial assistance.

Harold Pollack has noted that our current policy of entirely excluding undocumented immigrants from the exchanges is “morally unacceptable.” As Pollack explains, Clinton’s plan (and now Biden’s plan) to extend coverage to undocumented immigrants by allowing them to buy unsubsidized coverage in the exchange is a good first step, but it must be followed with comprehensive immigration reform to “bring de facto Americans out of the shadows into full citizenship.”

Louise Norris is an individual health insurance broker who has been writing about health insurance and health reform since 2006. She has written dozens of opinions and educational pieces about the Affordable Care Act for Her state health exchange updates are regularly cited by media who cover health reform and by other health insurance experts.


By admin