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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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  • Health Insurance Coverage for People with HIV Under the Affordable Care Act: Experiences in Five States

    Issue Brief

    To provide greater insight into how Affordable Care Act (ACA) implementation has affected people with HIV during the first year of major insurance expansions, this issue brief examines the experiences of people with HIV based on focus groups conducted in five states: California, Florida, Georgia, New York, and Texas. It is a part of KFF's larger ACA sentinel sites project.

  • Medicaid Expansion in Red States

    From Drew Altman

    In this column for The Wall Street Journal’s Think Tank, Drew Altman explains that Tennessee Gov. Bill Haslam's decision on Medicaid expansion via the Affordable Care Act is the latest sign of pragmatism slowly winning over ideology in red states.

  • Majority Favors the Affordable Care Act’s Employer Mandate, But Opinion Can Shift When Presented With Pros and Cons

    News Release

    Recent news stories on the heath law did not attract most Americans’ attention, and many are unaware of details and implications of the developments Weeks before the Affordable Care Act’s employer mandate takes effect in January, a new Kaiser Family Foundation tracking poll finds that six in 10 Americans (60%) say they have a favorable view of the provision, which in 2015 requires employers with 100 or more full time workers to offer health coverage…

  • Which Path for Health-Care Politics in 2015?

    From Drew Altman

    This was published as a Wall Street Journal Think Tank column on January 6, 2015. Yogi Berra said that when you come to a fork in the road, take it. It will be that kind of year for health-care politics. The status quo is not an option. The key to which path the Affordable Care Act takes is how the Supreme Court rules in King v. Burwell, the case that concerns whether subsidies in the health law can be…

  • New Policy Insight Examines Medical Debt Among Insured Consumers

    News Release

    In this new policy insight, Kaiser Family Foundation Senior Fellow Karen Pollitz explores how high cost sharing in health insurance plans can contribute to an individual’s medical debt, and explains how greater transparency in plan details could help consumers avoid some financial pitfalls. Medical Debt Among Insured Consumers: The Role of Cost Sharing, Transparency, and Consumer Assistance also provides an update on provisions of the Affordable Care Act meant to increase health plan transparency and…

  • Medicaid Enrollment Under the Affordable Care Act: Understanding the Numbers

    Issue Brief

    This issue brief walks through data recently released from Health and Human Services (HHS) and what it can and cannot tell us about the number of people that have applied for Medicaid since open enrollment for health insurance marketplaces began, how many have enrolled, and what the role of the ACA is in recent Medicaid coverage gains.

  • All Eyes on the Supreme Court: More than Birth Control at Stake

    Issue Brief

    On March 25th, the Supreme Court will hear two cases brought by for-profit corporations challenging the ACA’s contraceptive coverage rule on religious grounds. These two corporations are Hobby Lobby, a national chain of craft stores owned by a Christian family and Conestoga Wood Specialties, a cabinet manufacturer, owned by a Mennonite family. Beyond the impact on the ACA and contraceptive coverage, the Court’s decision may have implications for religious rights of employers and employees, as…

  • Obamacare? Zika? Which Health Stories Americans Actually Follow

    From Drew Altman

    In this column for The Wall Street Journal's Think Tank, Drew Altman analyzes the Kaiser Health Policy News Index to determine which health stories in the news have broken through to the public the most in the last year. One conclusion: it wasn't the Affordable Care Act.

  • Obamacare? Zika? Which Health Stories Americans Actually Follow

    News Release

    In his latest column for The Wall Street Journal's Think Tank, Drew Altman analyzes the Kaiser Health Policy News Index to determine which health stories in the news have broken through to the public the most in the last year. One conclusion: It wasn't the Affordable Care Act.