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Affordable Care Act

Enhanced Premium tax credits

2025 KFF Marketplace Enrollees Survey

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

Updated Larry QT on ePTCs

There is No Drop-Dead Date for an ACA Tax Credit Extension, But Coverage Losses Will Mount as the Clock Ticks

A discharge petition in the House paves the way for a vote on a three-year extension of the tax credits, which would provide ACA enrollees premium relief whenever it comes. While there is still time to extend the enhanced tax credits, with each passing day, more and more ACA Marketplace enrollees are going to drop their health insurance when faced with eye-popping increases in their premium payments, writes KFF’s Larry Levitt.

ACA Marketplaces

Affordable Care Act Signups Are Down, But Still an Incomplete Picture

Data from CMS may not fully show how much the expiration of the enhanced premium tax credits has affected enrollment in the ACA Marketplaces. The extent of enrollment changes likely won’t be known until this summer, when effectuated enrollment data are typically released.
DATA

Marketplace Enrollment Snapshot for Open Enrollment 2026

ANALYSIS

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

DATA

Number of Insurers in the Individual Insurance Marketplaces

ANALYSIS

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

Timely insights and analysis from KFF staff

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  • Consumer Appeal Rights in Private Health Coverage

    Issue Brief

    The Affordable Care Act (ACA) gives consumers the right to appeal private health plan claims denials and other adverse decisions, including the incorrect application of cost sharing, although limits apply. This issue brief describes consumer access to appeals and limits on appeal rights that have been adopted through federal regulations.

  • No Surprises Act Implementation: What to Expect in 2022

    Issue Brief

    The “No Surprises Act,” which establishes new federal protections against most surprise out-of-network medical bills when a patient receives out-of-network services during an emergency visit or from a provider at an in-network hospital without advance notice, will take effect next month. A new KFF brief outlines what to expect in 2022.

  • Summary of Costs and Impact of the Prescription Drug Provisions in the Build Back Better Act

    News Release

    As the House-passed Build Back Better Act moves to the Senate, a new explainer from KFF summarizes the key prescription drug provisions within the broader budget reconciliation bill. These provisions would lower prescription drug costs paid by people with Medicare and private insurance and curb drug spending by the federal government and private payers.

  • More Than 6 in 10 of the Remaining 27.4 Million Uninsured People in the U.S. are Eligible for Subsidized ACA Marketplace Coverage, Medicaid or the Children’s Health Insurance Program

    News Release

    Recent policy attention has focused on efforts to reduce the number of uninsured people in the U.S. by expanding eligibility for coverage assistance, including enhanced premium subsidies in the Affordable Care Act (ACA) Marketplace and filling the Medicaid “coverage gap.” A new KFF analysis shows that a majority of the 27.

  • How Could the Build Back Better Act Affect Uninsured Children?

    Issue Brief

    This brief examines characteristics of uninsured children in 2020 and discusses how current policy proposals, including outreach efforts, continuous eligibility requirements, and closing the coverage gap, could affect children’s health coverage. Recent efforts to expand coverage for adults could benefit children’s coverage, especially for children in non-expansion states if the coverage gap is filled as proposed by the Build Back Better Act (BBBA).

  • 10 Years of Hospital Readmissions Penalties

    Feature

    Over the 10-year lifetime of a Medicare program aimed at reducing hospital readmissions, 93% of eligible hospitals have been penalized at least once. Hospital readmissions have become less frequent, and most experts attribute that partly to the financial threat of the penalties, though other factors likely contributed to the improvements.

  • 2021 Calculator – Before COVID-19 Relief

    Interactive

    The Health Insurance Marketplace Calculator, updated with 2021 premium data, provides estimates of health insurance premiums and subsidies for people purchasing insurance on their own in health insurance exchanges (or “Marketplaces”) created by the Affordable Care Act (ACA). With this calculator, you can enter your income, age, and family size to estimate your eligibility for subsidies and how much you could spend on health insurance.