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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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  • Poll: Most Americans Want Congress to Prioritize Targeted Actions that Address Personal Health Care Costs; Fewer Cite Broader Reforms like Medicare-for-All and ACA Repeal as Top Priorities

    News Release

    Most Do Not Want the Supreme Court to Overturn the ACA or its Pre-Existing Conditions Protections When it comes to tackling pressing health care issues, incremental actions to address personal health care costs take precedence over broader, more partisan reforms for most Americans, according to the latest KFF Health Tracking Poll. As policymakers jockey over Medicare-for-all proposals and the legal and political fate of the Affordable Care Act, the public is more likely to choose…

  • From Ballot Initiative to Waivers: What is the Status of Medicaid Expansion in Utah?

    Issue Brief

    The Utah legislature significantly changed and limited the Medicaid coverage expansion that was adopted by the voters through a ballot initiative in November 2018. This issue brief explains new provisions in Utah's recently amended Section 1115 Medicaid waiver and the additional amendments that the state has submitted to CMS, including most recently a request for enhanced ACA federal matching funds for an expansion to 138% FPL with an enrollment cap.

  • KFF Poll: Public Opinion and Knowledge on Reproductive Health Policy

    Poll Finding

    The latest KFF Poll examines the public’s attitudes towards different facets of reproductive health care in light of recent policy changes made by the Trump administration. This poll examines attitudes towards major changes to the Title X program and attitudes toward state-level laws restricting abortions after a fetal heartbeat has been detected. The poll also looks at public awareness of provisions related to women’s health that are part of the 2010 Affordable Care Act.

  • The Silent Affordability Crisis Facing Sick People

    From Drew Altman

    In this Axios column, Drew Altman shows that employer coverage for lower wage workers is much worse than ACA marketplace coverage for similar populations. It’s a bigger problem we need to talk about more, he says.

  • Individual Market Insurers Are Expecting to Pay a Record $800 Million in Rebates to Consumers for Excessive Premiums in 2018

    News Release

    Individual market insurers are expecting to return to consumers a record total of about $800 million in excess premiums for 2018, a year in which the insurance companies posted their best annual financial performance under the Affordable Care Act to date, finds a new KFF analysis. The rebates to more than 3 million eligible individual market consumers, based on preliminary estimates by insurers, must be issued by September 30. They are the result of the…

  • “Partial Medicaid Expansion” with ACA Enhanced Matching Funds: Implications for Financing and Coverage

    Issue Brief

    The Affordable Care Act (ACA) provides enhanced federal matching funds to states that expand Medicaid to nonelderly adults up to 138% of the federal poverty level (FPL, $17,236/year for an individual in 2019). The ACA enhanced match (93% in 2019, and 90% in 2020 and thereafter) is substantially higher than states’ traditional Medicaid matching rate. A few states have sought Section 1115 demonstration waiver authority from the Centers for Medicare and Medicaid Services (CMS) to…

  • Analysis: Marketplace Plans Denied an Average of Nearly One in Five Claims in 2017 with Wide Variations across Insurers

    News Release

    Healthcare.gov marketplace insurers denied nearly one out of every five claims (19%) submitted for in-network services in 2017, and enrollees only appeal a tiny share (0.5%) of those denied claims, a KFF analysis of recently released claims data finds. The analysis finds a huge variation across insurers, with average denial rates as low as 1 percent and as high as 45 percent. Denial rates also vary across states, though individual insurers in the same state…

  • Among People Ineligible for Subsidies, Middle-Class Older Adults Face the Least Affordable ACA Premiums, Especially Those Living in Rural Areas Where Premiums Are Highest

    News Release

    A new KFF analysis finds that Affordable Care Act marketplace premiums are least affordable for older adults who earn too much to qualify for federal subsidies, especially those living in rural areas where premiums are highest. The analysis of the lowest-cost 2019 ACA marketplace plans across U.S. counties finds that older adults not eligible for subsidies living in 28 rural Nebraska counties face the least affordable ACA premiums as a share of income. A 60-year-old…

  • The Role Health Is and Is Not Playing in the Midterms

    From Drew Altman

    With less than two weeks until Election Day, Drew Altman discusses health being the top issue, but not necessarily the top factor in voters' 2018 decisions. He says the longer-term impact of health may be its continuing role in the debate leading up to the 2020 presidential race.