Affordable Care Act

About the ACA

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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?

The ACA MarketplaceS

In Preliminary Rate Filings, ACA Marketplace Insurers Largely Propose Double-Digit Premium Increase For 2027, Following a Steep Climb This Year 

ACA Marketplace insurers are proposing a median premium increase of 14% for 2027— indicating a likely second consecutive year of double-digit increases, according to a new analysis of preliminary rate filings in 16 states and DC. If these increases hold, typical premiums for insurers participating in the ACA Marketplaces would jump by more than one-third between 2025 and 2027.

The Average Marketplace Deductible Grew by About $1,000 Per Person in 2026, With More Enrollees Shifting to Higher-Deductible Plans as Enhanced Tax Credits Expired

The average Affordable Care Act (ACA) Marketplace deductible experienced the steepest increase in history—growing by 37% or over $1,000, from $2,759 in 2025 to $3,786 in 2026 as enhanced premium tax credits expired, according to a new KFF analysis. After the enhanced tax credits ended, many Marketplace shoppers shifted toward lower-premium, higher-deductible plans.

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  • State Variation in Medicaid Per Enrollee Spending for Seniors and People with Disabilities

    Issue Brief

    This issue brief explains the variation in Medicaid spending per enrollee for seniors, nonelderly adults with disabilities, and children with disabilities compared to other populations as well as the variation in per enrollee spending for these populations among states. It also provides a snapshot of state choices about optional eligibility pathways and services important to many seniors and people with disabilities.

  • The Role of Language in Health Care Access and Utilization for Insured Hispanic Adults

    Issue Brief

    The ACA coverage expansions may help mitigate some barriers people with limited English proficiency (LEP) face in accessing coverage and care. However, individuals with LEP may still face increased barriers to care with coverage. This analysis examines differences in health care experiences between English- and Spanish-speaking Hispanic adults with insurance using data from the 2014 Kaiser Survey of Low-Income Americans and the ACA.

  • Analysis of 2016 Premium Changes in the Affordable Care Act’s Health Insurance Marketplaces

    Fact Sheet

    The chart and tables below present an updated analysis of changes in premiums for the lowest- and second-lowest cost silver Affordable Care Act (ACA) marketplace plans in major cities in 48 states and the District of Columbia, where we were able to find complete data on rates for all insurers. This page will be updated as complete rate information becomes available for more states. More background can be found in our earlier analysis of 2016…

  • How Primary-Care Physicians Are Handling the Influx of Newly Insured

    News Release

    In his column for The Wall Street Journal's Think Tank, Kaiser’s President Drew Altman is joined by The Commonwealth Fund's President David Blumenthal to discuss the impact of the Affordable Care Act’s coverage expansion on the primary care delivery system. Their analysis is based on the Kaiser-Commonwealth National Survey of Primary Care Providers. All previous columns by Drew Altman are available online.  

  • Analysis of UnitedHealth Group’s Premiums and Participation in ACA Marketplaces

    Issue Brief

    This analysis looks at how a potential withdrawal by UnitedHealth Group from the Affordable Care Act (ACA) marketplaces in 2017 could impact insurer competition and premiums, finding a significant impact in some markets, though it would have a minimal effect on the average benchmark premium nationwide, The impacts of a UnitedHealth withdrawal would vary considerably by state and market area, with a more pronounced effect in rural areas. Since UnitedHealth often is not one of…

  • Insurer Competition, Monthly Premiums Could Be Affected in Some Markets if UnitedHealth Group Exits ACA Marketplaces

    News Release

    A withdrawal by UnitedHealth Group from the Affordable Care Act (ACA) marketplaces in 2017 could have a significant impact on insurer competition and premiums in some markets, though it would have a minimal effect on the average benchmark premium nationwide, according to a new analysis from the Kaiser Family Foundation. Late last year, UnitedHealth announced that it experienced significant financial losses in ACA compliant plans and that it would decide about future participation in ACA…