Affordable Care Act

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?

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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  • Most of the Public Oppose Major Federal Cuts to Health Agencies and Programs and Say They Have Been Made “Recklessly”

    News Release

    As the Trump administration and Congress pursue broad cuts to federal health agencies and budgets, most of the public, including some Republicans, oppose deep budget and staffing cuts to federal health programs and agencies, a new KFF Health Tracking Poll finds. Across a range of questions, large majorities of Democrats and independents oppose the Trump administration’s major cuts to federal health agencies and programs, while Republicans are more supportive. Those who identify with President Trump’s…

  • Nearly Four in Ten Women of Reproductive Age and Over Six in Ten Adults Ages 50-64 Enrolled in Medicaid are Covered Through Medicaid Expansion

    5 Key Facts About Medicaid Expansion

    Issue Brief

    This issue brief examines Medicaid expansion enrollment and Medicaid spending in expansion and non-expansion states and describes the characteristics of adults covered by the Medicaid expansion.

  • This is an image of text that are an excerpt of Larry Levitt's quick take that reads: " Once Republicans in Congress get specific about Medicaid cuts, it will become more tangible and clearer who will be affected. Changes to the status quo in health care rarely get more popular when the details get filled in. We saw that with the Clinton health plan in the 1990s, with the Affordable Care Act (ACA) when it initially passed, and with the 2017 effort to repeal the ACA."

    The Rubber is About to Hit the Road on Medicaid Cuts

    Quick Insights

    Once Republicans in Congress get specific about Medicaid cuts, it will become more tangible and clearer who will be affected. Changes to the status quo in health care rarely get more popular when the details get filled in.

  • ACA Marketplace Enrollment Has More Than Doubled Since 2020, with the Fastest Growth Occurring in States Won by President Trump in 2024

    News Release

    Enrollment in Affordable Care Act (ACA) Marketplace health plans reached a record 24.3 million people, more than double the total in 2020, with most of the growth occurring in states won by President Trump in the 2024 election, a new KFF analysis finds.  Almost all states have seen increases in enrollment since 2020, including six states where enrollment has more than tripled: Texas (up 255%), Mississippi (up 242%), West Virginia (up 234%), Louisiana (up 234%),…

  • Enrollment Growth in the ACA Marketplaces

    Policy Watch

    This analysis of enrollment in Affordable Care Act (ACA) Marketplace health plans finds a record 24.3 million people enrolled in 2025, more than double the total in 2020, with most of the growth occurring in states won by President Trump in the 2024 election. In six states, enrollment more than tripled from 2020 to 2025: Texas, Mississippi, West Virginia, Louisiana, Georgia, and Tennessee.

  • Decoding the HHS Reorganization

    From Drew Altman

    In his latest column, KFF President and CEO Drew Altman examines the implications of Secretary Kennedy’s reorganization of HHS and why it’s a sharp break from past efforts to reorganize the department.