The independent source for health policy research, polling, and news.
KFF’s policy research provides facts and analysis on a wide range of policy issues and public programs.
KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the organization’s core operating programs.
This chart examines individual market enrollment data from 2011 through 2025, when enrollment reached a record high of 25.2 million people. Affordable Care Act (ACA) Marketplace enrollment increased following the enactment of enhanced premium tax credits in 2021, as more individuals became eligible for subsidies.
What Americans Pay for Health Insurance Under the ACA, JAMA, March 18 2014 Download >>View Infographic
This analysis examines the amount of financial assistance that people have qualified for through premium tax credits in the new health insurance marketplaces (also known as exchanges) under the Affordable Care Act through the end of February 2014. The brief also examines the implications that the enrollment variation carries for the potential tax benefits the Affordable Care Act offers to state residents.
In this column for The Wall Street Journal’s Think Tank, Drew Altman explains that Tennessee Gov. Bill Haslam's decision on Medicaid expansion via the Affordable Care Act is the latest sign of pragmatism slowly winning over ideology in red states.
The Health Insurance Marketplace Calculator, updated with 2019 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.
This webcast features a Kaiser Family Foundation briefing held on March 14, 2012, examining the policy and political implications of the pending U.S. Supreme Court case on the Affordable Care Act (ACA). At the briefing, the Foundation released new polling data on the public’s views about the case as well as their more general views about the health reform law. Participants included: Kaiser President and CEO Drew Altman (moderator)Joe Onek, Principal, The Raben Group Sheila…
The Patient Protection and Affordable Care Act creates a new federal role to examine “unreasonable increases” in the premiums charged for certain individual and small group health plans. Under the health reform law, the U.S. Department of Health and Human Services (HHS) will work with state insurance departments to conduct an annual review of unreasonable rate increases, and insurers must provide justification for such increases to HHS and to the public via their websites. The…
This analysis estimates that Americans currently buying insurance on the individual market would receive $2700 in subsidies (as tax credits) in 2014 under Obamacare. Tax credits are available for qualifying people buying insurance through the new health care marketplaces, or exchanges.
The Build Back Better Act would make a number of changes to the way people get health insurance and how health care is financed, including by temporarily closing the Medicaid coverage gap.
This post examines what would happen to ACA marketplace premiums for enrollees with incomes more than four times the federal policy level if the enhanced American Rescue Plan Act subsidies expire, including variations by state .
© 2026 KFF