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.
The ACA Marketplace Open Enrollment season begins November 1, and with it comes looming changes to the enhanced premium tax credits, increases in out-of-pocket premium payments, new Marketplace eligibility rules, and more. Read our analysis of what these and other changes could mean for new and returning enrollees.
The Health Insurance Marketplace Calculator, updated with 2025 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).
The August Kaiser Health Tracking Poll finds that even though 32 million uninsured Americans will gain health insurance under the ACA, only about half of non-elderly Americans currently without coverage say they are familiar with the chief components in the law designed to achieve this goal. Fifty-two percent of the uninsured say they are aware the law will provide subsidies to help low- and moderate-income people without insurance purchase it. And 47 percent are aware that…
The Health Insurance Marketplace Calculator, updated with 2023 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).
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 ten who specifically say their premiums are “a lot higher.”
This analysis provides estimates of the share of uninsured people eligible to enroll in the Affordable Care Act marketplaces who will be subject to the individual mandate penalty, and how those penalties are increasing for 2016. It also provides estimates of the number of people who could have a zero-dollar contribution or pay less for health insurance than the penalty, due to premium subsidies, and the number of people who would pay more for a…
The Affordable Care Act, also known as Obamacare, and leading replacement proposals rely on refundable tax credits to help individual market enrollees pay for premiums, although the credit amounts are set quite differently. This analysis compares estimates of an average 2020 tax credit amount under the ACA with averages under the House Republicans' American Health Care Act, introduced March 6, 2017.
This analysis provides an early look at premium changes for individuals in the health insurance marketplaces, created under the Affordable Care Act (ACA), in major cities across 15 states plus DC. Although premium changes vary across and within states, premium changes for 2015 in general are modest when looking at low-cost plans. On average, individuals will pay slightly less in premiums for the benchmark silver plan in 2015 than in 2014.
The House COVID-19 relief proposal would temporarily lower what millions of Marketplace enrollees and uninsured potential enrollees would pay toward premiums and would provide states that have not expanded their Medicaid programs a financial boost that would more than offset their costs initially, two new KFF analyses find. The analyses assess two parts of the House plan aimed at expanding access to affordable health coverage by expanding the Affordable Care Act’s tax credits for people…
The Health Insurance Marketplace Calculator, updated with 2025 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).
© 2026 KFF