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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  • Medicaid and Children’s Health Insurance Program Provisions in the New Health Reform Law

    Issue Brief

    This brief compares the Medicaid and Children's Health Insurance Program provisions in the new health reform law with pre-reform law governing those programs. The analysis focuses on Medicaid coverage and financing changes; how Medicaid and CHIP will interface with a new health insurance exchange and other Medicaid benefits and access changes. Overall, the new law includes an individual requirement to obtain health insurance, a significant Medicaid expansion and subsidies to help low-income individuals buy coverage…

  • Pulling It Together: Implementation Is Forever

    Perspective

    Now that historic health reform legislation is law, everyone is rightfully focused on implementation. There are two very different ways to look at implementation. One is the more legalistic worm's eye view, which sees implementation largely as the process of putting into effect what was written in the law. In the worm's eye view implementation proceeds in a linear fashion from legislation, to regulations specifying what the statute calls for in greater detail, to operations…

  • Kaiser Health Tracking Poll — April 2010

    Feature

    The first Kaiser Health Tracking Poll fielded since the passage of health reform last month finds that 8 in 10 Americans know that President Obama signed the legislation into law. But 55 percent say they are confused about the law and more than half (56%) say they don’t yet have enough information to understand how it will affect them personally. The poll finds that the public supports many of the provisions of health reform that…

  • Medicaid Beneficiaries and Access to Care

    Fact Sheet

    The health reform law relies on a large expansion of Medicaid to reach many low-income uninsured people, many of them adults. This fact sheet summarizes Medicaid beneficiaries' experience in obtaining access to care, a subject that is of keen interest in view of the planned expansion of the program. Medicaid and the Children's Health Insurance Program have substantially increased coverage among low-income Americans, especially children. Research shows that Medicaid compares favorably with private coverage in…

  • Explaining Health Care Reform: Questions About Health Insurance Exchanges

    Issue Brief

    The Patient Protection and Affordable Care Act (PPACA), signed into law in March 2010, made broad changes to the way health insurance will be provided and paid for in the United States. PPACA created a new mechanism for purchasing coverage called Exchanges, which are entities that will be set up in states to create a more organized and competitive market for health insurance by offering a choice of health plans, establishing common rules regarding the…

  • Kaiser Health Tracking Poll — March 2010

    Feature

    The March Kaiser Health Tracking Poll finds the public still divided on health reform legislation, with 46 percent of Americans backing the reform proposals on Capitol Hill, 42 percent opposing them and 12 percent saying they aren't sure. Six in 10 Americans say they have heard little or nothing about budget reconciliation. And many people continue to struggle with health costs, with nearly one in five saying cost increases have caused them or their employer…

  • Pulling it Together: When Premiums Go Up 39%

    Perspective

    Our group that works on health care cost issues just updated an analysis that sheds light on what’s really happening to people in the individual health insurance market, the issue Secretary Sebelius, a former Kansas insurance commissioner, and others have put in the spotlight by calling on Anthem and other insurance companies to account for their proposed high premium increases. The analysis shows that people buying health insurance on their own in the individual market…

  • Snapshots: Comparison of Expenditures in Nongroup and Employer-Sponsored Insurance: 2004-2007

    Issue Brief

    Data from the insurance industry and reviews of premiums offered through on-line sellers show that premiums for nongroup health insurance are lower than premiums reported on national surveys for employer-sponsored health insurance (ESI).  This paper uses pooled data from the 2004 through 2007 Medical Expenditure Panel Survey to compare the insurance payments for and out-of-pocket payments by people with nongroup health insurance and people with ESI.  While premiums for non-group coverage are lower than ESI…

  • Explaining Health Care Reform: Key Changes to the Medicare Part D Drug Benefit Coverage Gap

    Issue Brief

    On March 23, 2010, President Obama signed the Patient Protection and Affordable Care Act into law. The health reform law, as modified by the Health Care and Education Reconciliation Act of 2010 which passed the House of Representatives on March 21, 2010 and is under consideration in the Senate, makes several key changes to the Medicare Part D drug benefit to reduce Part D enrollees’ out-of-pocket liability when they reach the coverage gap, known as…

  • Better Care & Lower Costs: Exploring the Promise of Patient Engagement

    Event Date:
    Event

    03/05/10 Engaging consumers more directly in their care may improve health outcomes and help control the costs of care. This briefing, cosponsored by the Alliance for Health Reform and the AARP Public Policy Institute, focused on the potential for changing consumer behavior to promote the use of effective interventions and discourage unnecessary care. It addressed questions such as: How promising are consumer engagement techniques such as patient self-management, shared decision-making and value-based insurance design? What…