Affordable Care Act

The ACA MarketplaceS

Change in February effectuated enrollment, by state, 2025-2026

How Has ACA Marketplace Enrollment Changed Across States in 2026?

ACA Marketplace enrollment fell this year in every state except New Mexico, which was the only state to fully replace the enhanced premium tax credits that expired last year with a state-funded subsidy, according to a new KFF analysis of effectuated enrollment data. The Marketplace enrollment decline—the first in seven years—follows several years of rapid enrollment growth and coincides with the end of the enhanced federal subsidies.

How Much and Why ACA Marketplace Premiums Are Going Up in 2027

ACA Marketplaces insurers are proposing a median premium increase of 15% in 2027, according to KFF’s updated analysis of 276 insurers with publicly available filings across all 50 states and the District of Columbia. This is the second consecutive year of double-digit premium hikes. Last year’s median nationwide proposed rate change was 18%, and the median finalized rate change was 20%. While this proposed rate change is lower than last year, it represents the second-highest requested rate change since 2018, as premium growth had been relatively flat in this market for several years.

About the ACA

Promotional image for KFF video How Affordable is the Affordable Care Act

Did the Affordable Care Act Make Health Care More Affordable?

The expiration of the ACA’s enhanced premium tax credits at the start of 2026, combined with rising insurer premiums, put a spotlight on health care affordability that extends beyond Marketplace enrollees. KFF’s Cynthia Cox examines the ACA’s record and the broader underlying question it raises: what’s a fair price for Americans people to pay for health care?

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  • KFF Data Note: Americans’ Views on the Personal Impact of the ACA and the Supreme Court’s Decision

    Perspective

    As the Supreme Court hears cases challenging the constitutionality of parts of the Affordable Care Act, a relatively small share of the public thinks the Supreme Court’s decision will have a lot of impact on their family (28 percent). At the same time, the public is divided as to whether the law overall will leave their own families better off (26 percent), worse off (33 percent), or if it won’t make much difference (34 percent).…

  • KFF Data Note: A Snapshot of Public Opinion on the Individual Mandate

    Perspective

    This week, the Supreme Court hears arguments on several challenges to the Patient Protection and Affordable Care Act (ACA), including the provision that requires individuals to purchase health insurance as of 2014, known as the individual mandate. For the two years since the law’s passage, and during the debate leading up to it, this provision has been one of the most controversial aspects of the law. As the lawyers, policymakers, ACA opponents and supporters focus…

  • Public Opinion on the ACA: Cruising or Turbulent Ride?

    Perspective

    Regular readers of the Kaiser Health Tracking poll know by now that public opinion on the Affordable Care Act (ACA) has been at a steady cruising altitude since it was signed into law on March 23, 2010, with a little over four in ten viewing the law favorably and a similar share unfavorably. But, has public opinion on the law since passage been more turbulent for different groups of Americans, for example, those with lower…

  • Data Note: Americans’ Views on the Personal Impact of the ACA and the Supreme Court’s Decision

    Poll Finding

    This Data Note draws from the March 2012 Kaiser Health Tracking Poll and examines people's impressions of how the law and the Court case will affect them, focusing primarily on those groups that are in the position to receive the greatest benefits. For the most part, those that stand to benefit most are not more likely than others to expect to be better off under the law, or to feel that the Supreme Court's decision…

  • State Exchange Profiles: Mississippi

    Other Post

    Final update made on February 11, 2013 (no further updates will be made) Establishing the Exchange In October 2011, Mississippi’s elected Commissioner of Insurance Mike Chaney (R) announced that the state would establish a Health Insurance Exchange that would be operated by the Mississippi Comprehensive Health Insurance Risk Pool Association and regulated by the Insurance Department.1 However, Governor Phil Bryant (R) has opposed the effort to establish a state-based exchange. The Comprehensive Health insurance Risk Pool…

  • State Exchange Profiles: Nebraska

    Other Post

    Final update made on December 19, 2013 (no further updates will be made) Establishing the Exchange On November 15, 2012, Governor Dave Heineman (R) announced that Nebraska would not establish a health insurance exchange.1Earlier in 2012, the Nebraska legislature introduced two bills (LB 835 and LB 838) to establish a health insurance exchange in Nebraska, however both failed when the legislative session concluded in April.2,3 In 2011, Governor Heineman signed LB 22 into law, which…

  • State Marketplace Profiles: New Hampshire

    Other Post

    Final update made on November 1, 2013 (no further updates will be made) Establishing the Marketplace On June 18, 2012, Governor John Lynch (D) signed HB 1297 into law, which prohibits the state from participating in or enabling a state-based health insurance Marketplace. However, HB 1297 allows for state agencies or departments to “operate specific functions of a federally-facilitated exchange."1  Given this authority, newly-elected Governor Maggie Hassan (D) informed federal officials on February 13, 2013 that…

  • State Marketplace Profiles: Michigan

    Other Post

    Final update made on November 26, 2013 (no further updates will be made) Establishing the Marketplace While Governor Rick Snyder (R) supports the creation of a State-based Marketplace, he acknowledged on November 16, 2012, that without authorizing legislation, he would plan for a State-federal Partnership Marketplace.1  The state began moving in the direction of a partnership in August 2012 due to legislative opposition that left the state unable to meet the federal timetable for implementation.2  Michigan will…

  • State Marketplace Profiles: District of Columbia

    Other Post

    Final update made on October 1, 2013 (no further updates will be made) Establishing the Marketplace On December 20, 2011 the District of Columbia City Council gave final approval to a bill establishing the District of Columbia Health Benefit Exchange Authority (HBX) and in late January 2012, Mayor Vincent Gray (D) signed the legislation into law (Act 19-269).1  The bill was also subject to a 30-day Congressional review. In June 2013, the District of Columbia announced that its new…

  • State Exchange Profiles: Kansas

    Other Post

    Final update made on March 21, 2013 (no further updates will be made) Establishing the Exchange After placing health insurance exchange planning on hold until after the November elections, Governor Sam Brownback (R) announced on November 9, 2012, Kansas would default to a federally-facilitated exchange.1,2 With the initial endorsement of the Governor in 2011, Kansas Insurance Commissioner Sandy Praeger, had established eight exchange planning work groups comprised of hundreds of volunteers across civic groups, government…