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Affordable Care Act

The ACA Marketplace

2025 KFF Marketplace Enrollees Survey

In 2025, about one in three ACA enrollees said they would be “very likely” to look for a lower-premium Marketplace plan If their premium payments doubled.

Cost Concerns and Coverage Changes: A Follow-Up Survey of ACA Marketplace Enrollees

Following the expiration of the enhanced premium tax credits for people with Affordable Care Act (ACA) Marketplace plans, a new KFF follow-up survey of the same Marketplace enrollees KFF surveyed in 2025 finds half (51%) of returning enrollees say their health care costs are “a lot higher” this year compared to last year, including four in 10 who specifically say their premiums are “a lot higher.”

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POLLING

Tracking the Public’s Views on the ACA

While overall opinion of the Affordable Care Act has been more favorable than unfavorable since 2017, there remain deep partisan divides. See how public opinion on the ACA has changed from the inception of the law to the present. This interactive tool highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.
DATA

Marketplace Enrollment is Down in 2026—But All of the Data Isn’t in Yet

ANALYSIS

Higher Premium Payments or Higher Deductibles: The ACA's Tradeoffs

QUIZ

Test Your Knowledge of the Affordable Care Act

ANALYSIS

Competition Increased in Individual Market But Fell in Fully Insured Group Markets

Timely insights and analysis from KFF staff

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  • 5 Million More Older Americans Would Become Uninsured under the House GOP Health Bill, and Many with Coverage Would Pay Steep Increases in Premiums 

    News Release

    As a group, older Americans are likely to see some of the biggest changes in their health insurance under the House-passed American Health Care Act (AHCA). The Congressional Budget Office projects that the number of 50- to 64-year-olds who are uninsured would rise to 10 million in 2026, about 5.1 million more than the number who would be uninsured under current law. Many of those who do have coverage would see steep increases in premiums…

  • Kaiser Health Tracking Poll – June 2017: ACA, Replacement Plan, and Medicaid

    Feature

    As the Senate prepares to vote on the Republican plan to repeal and replace the Affordable Care Act and limit federal Medicaid funding, a new Kaiser Family Foundation Tracking Poll finds the Affordable Care Act itself remains far more popular than the bill that would replace it. A majority of Republicans, however, continue to support the Republican plan, though by a significantly narrower margin than last month. Furthermore, the Tracking Poll finds that the most…

  • Premiums under the Senate Better Care Reconciliation Act

    Issue Brief

    This analysis provides estimates of how premiums, after taking into account tax credits, would differ in 2020 under the Senate's Better Care Reconciliation Act (BCRA) vs. the Affordable Care Act (ACA) for people currently enrolled in the federal and state insurance marketplaces.

  • Association Health Plans for Small Groups and Self-Employed Individuals under the Better Care Reconciliation Act

    Issue Brief

    A provision in the Senate Better Care Reconciliation Act (BCRA), a bill to repeal and replace the Affordable Care Act (ACA), would establish association health plan options for small employers and self-employed individuals. For these plans, the requirement that premiums cannot vary based on health status would not apply. This brief describes how association health plans could affect premiums in the small group and non-group markets.

  • Medicaid’s Role in Colorado

    Fact Sheet

    This fact sheet provides data on Medicaid's role in Colorado. It describes how ending the enhanced match for Medicaid expansion and implementing a per capita cap or block grant would affect Colorado.

  • Medicaid’s Role in Tennessee

    Fact Sheet

    This fact sheet provides data on Medicaid's role in Tennessee and describes how implementing a per capita cap or block grant would affect Tennessee.

  • Section 1332 State Innovation Waivers: Current Status and Potential Changes

    Issue Brief

    Section 1332 of the Affordable Care Act (ACA) authorizes states to waive key requirements under the law in order to experiment with different health coverage models. As Republicans in Congress debate repeal and replacement of the ACA, renewed attention is being paid to these waivers as a mechanism for giving states flexibility to restructure their health care markets. This brief describes current 1332 waiver activity, including proposals in the Senate's Better Care Reconciliation Act (BCRA),…

  • Medicaid’s Role in Kentucky

    Fact Sheet

    This fact sheet provides data on Medicaid's role in Kentucky. It describes how ending the enhanced match for Medicaid expansion and implementing a per capita cap or block grant would affect Kentucky.

  • What Are the Implications for Medicare of the American Health Care Act and the Better Care Reconciliation Act?

    Issue Brief

    This issue brief highlights a major implication of the American Health Care Act and Better Care Reconciliation Act for Medicare. Both bills would repeal the Affordable Care Act provision to increase the payroll tax on high-income earners. Repealing this surtax would move up the insolvency date of the Medicare Part A trust fund by 2 years, from 2028 to 2026, and also worsens the program's long-term financial outlook.

  • Medicaid’s Role in Ohio

    Fact Sheet

    This fact sheet provides data on Medicaid's role in Ohio. It describes how ending the enhanced match for Medicaid expansion and implementing a per capita cap or block grant would affect Ohio.