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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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  • JAMA Forum: What is Trumpcare?

    Perspective

    The debate among Democratic presidential candidates about how to reform the health care system largely boils down to whether to build on the Affordable Care Act and create an option for people to enroll in Medicare or create a Medicare for all plan that covers everyone. On the other side of the partisan divide, President Trump has repeatedly promised a health care plan, but not yet delivered one. The president has vowed to repeal the…

  • Workers Aren’t So Sure “Medicare for All” Would Raise Their Wages

    From Drew Altman

    Drew Altman’s latest Axios column dives into an issue raised in a Joe Biden and Bernie Sanders exchange. In a Medicare-for-all system employers could reap large savings from not having to provide workers health care coverage, but do workers trust that those savings will be passed to them in higher wages?

  • “What is CMMI?” and 11 other FAQs about the CMS Innovation Center

    Fact Sheet

    The Center for Medicare and Medicaid Innovation (CMMI), also known as the "Innovation Center," was authorized under the Affordable Care Act with the goals of designing, implementing, and testing new payment and delivery system reform models to address concerns about rising costs, quality of care, and inefficient spending. These FAQs provide an overview of the Innovation Center, as well as details on model performance, beneficiary involvement, and more.

  • Community Health Centers: Growing Importance in a Changing Health Care System

    Issue Brief

    Community health centers provide essential access to comprehensive primary care in underserved communities. This issue brief describes health centers and their patients in 2016 and examines changes in access to care and utilization of services by health center patients following implementation of the ACA coverage expansions in 2014.

  • Kaiser Health Tracking Poll – March 2018: Views on Prescription Drug Pricing and Medicare-for-all Proposals

    Feature

    More than a year into President Trump’s presidency, the March Kaiser Health Tracking Poll gauges the public’s top priorities for the president and Congress to do in the coming months. This month’s poll also measures perceptions on the cost of prescription drugs, attitudes towards policymakers’ actions to address drug prices, and views of pharmaceutical companies. In addition, with the 2018 midterm elections less than 8 months away, the KFF poll asks how important a national…

  • Poll: Public Says Drug Companies Have More Influence in Washington than the NRA

    News Release

    Democrats Split on Whether to Fix the ACA or Push for a National Health Plan; Few Democratic Voters Say a National Health Plan is Their Top Issue for the Midterms As policymakers weigh strategies to address the high cost of prescription drugs, the latest Kaiser Health Tracking Poll finds that a large majority of the public (72%) view pharmaceutical companies as having too much influence in Washington – more than say the same about the…

  • State and Federal Contraceptive Coverage Requirements: Implications for Women and Employers

    Issue Brief

    Before the ACA was passed, many states had enacted contraceptive equity laws that required plans to treat contraceptives in the same way they covered other services. In addition, since the ACA was passed, a number of states have enacted laws that basically codify in state legislation the ACA benefit rules. This issue brief provides an update on the status of the continuing litigation on the federal contraceptive requirement and explains the interplay between the federal…

  • The Politics of ACA Rate Hikes Will Be 2016 in Reverse

    From Drew Altman

    Democrats are expected to turn the tables and attack Republicans for rising premiums and sabotaging the Affordable Care Act. In his Axios column, Drew Altman discusses a balancing act they face which has not received attention: score political points, but run the risk of a new debate scaring the broader public and undermining the ACA by focusing on its continuing problems.

  • The ACA Ruling Shows How the Times Have Changed on Health Care

    From Drew Altman

    In this Axios column about the Texas court decision, Drew Altman shows that many provisions of the Affordable Care Act are even more popular than protections for pre-existing conditions, the issue which put Republicans on the defensive and helped Democrats in the midterm elections.

  • If the Affordable Care Act is Struck Down, Nearly All Americans Would Be Affected in Some Way

    News Release

    The Affordable Care Act’s changes to the nation’s health care system are so widespread that nearly all Americans would be affected in some way if a federal judge’s decision ruling the entire law unconstitutional is upheld, according to a new analysis from KFF (the Kaiser Family Foundation). While the changes to the individual insurance market – including protections for people with pre-existing conditions, creation of insurance marketplaces, and premium subsidies for low and modest income…