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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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  • Quick Take: Key Considerations in Evaluating the ACA Medicaid Expansion for States

    Fact Sheet

    A central goal of the Patient Protection and Affordable Care Act (ACA) is to significantly reduce the number of uninsured by providing a continuum of affordable coverage options through Medicaid and new Health Insurance Exchanges.  Following the June 2012 Supreme Court decision, states face a decision about whether to adopt the Medicaid expansion. These decisions will have substantial consequences for health coverage for the low-income population. The 3 key questions that states should consider in…

  • Medicaid Eligibility, Enrollment Simplification, and Coordination under the Affordable Care Act: A Summary of CMS’s March 23, 2012 Final Rule

    Issue Brief

    This brief provides a summary of the Centers for Medicare and Medicaid Services' (CMS) March 23, 2012 final rule to implement the ACA provisions relating to Medicaid eligibility, enrollment simplification and coordination. The rule, which is effective Jan. 1, 2014, lays out procedures for states to implement the Medicaid expansion and the streamlined and integrated eligibility and enrollment system created under the ACA. Achieving this goal will require substantial process and system changes among state…

  • Study Finds Recent Slowdown in Health Spending Growth Mostly Tied to the Economy

    News Release

    Growth Expected To Move Towards Historical Levels In Coming Years As the Economy Recovers A new Kaiser Family Foundation analysis of how the economy affects the nation’s health spending concludes that the record slow growth rate of recent years stems largely from economic factors beyond the health system, with the economy explaining 77 percent of the slowdown, and more rapid growth expected in coming years if the economy strengthens as expected. Based on statistical modeling…

  • Explaining Health Care Reform: Medical Loss Ratio (MLR)

    Fact Sheet

    This fact sheet explains the Medical Loss Ratio requirement under the Affordable Care Act (ACA). The MLR provision limits the portion of premium dollars health insurers may spend on administration, marketing, and profits. Under health care reform, health insurers must publicly report the portion of premium dollars spent on health care and quality improvement and other activities in each state they operate. Insurers failing to meet the applicable standard must pay rebates to consumers and…

  • ACA 101: What You Need to Know

    Event Date:
    Event

    Useful review for anyone seeking to comprehend complex issues leading up to major implementations taking effect in 2014

  • Questions for 2014

    From Drew Altman

    Today’s discussion of the Affordable Care Act (ACA) is focused on immediate implementation milestones leading up to 2014 when the law’s major provisions are set to kick in.  This is a critical period when the foundation for the ACA is being established and key building blocks such as the state Medicaid expansions, exchanges, and a host of regulations about other elements of the ACA being produced by HHS are getting our attention. But there is…

  • New Reports Find States Expecting 7.4 Percent Growth in Medicaid Spending In Fiscal Year 2011 As the Recession’s Lingering Effects Drive Up Enrollment

    News Release

    States Face New Budget and Workforce Challenges As Temporary Federal Aid Nears End And Health Reform Planning Heats Up WASHINGTON, D.C. – Due to the nation’s deep recession, states experienced rapid growth in their Medicaid enrollment and spending last year and expect additional growth, though at a slower pace, in fiscal year 2011, according to a survey of state Medicaid officials in all 50 states released today by the Kaiser Family Foundation’s Commission on Medicaid and…

  • Kaiser Family Foundation Launches Online Health Reform Source to Explain, Analyze, and Track the New Law’s Implementation

    News Release

    New Initial Features Include Animated Movie Explaining the Law, Policy and Public Opinion Monitoring, and State-Specific Data MENLO PARK, Calif. -- Nearly six months since the signing of the Patient Protection and Affordable Care Act and as some key provisions are due to be implemented, the Kaiser Family Foundation today launched an online gateway providing easy access to new and comprehensive resources on the health reform law.  Recognizing the transition from the debate about passage…

  • Americans Remain Split On Stalled Health Care Legislation, but Some Provisions Popular Among Majorities of Democrats, Independents and Republicans

    News Release

    Most See Delays As Driven By Politics Rather Than Policy MENLO PARK, CA – The latest Kaiser Tracking Poll finds the public still split on health care reform legislation, with 43 percent in favor and 43 percent opposed.  However, the poll also finds that majorities of Americans of all political leanings support several provisions in the health reform proposals in Congress and most attribute delays in passing the legislation to political gamesmanship rather than policy…