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This analysis of available 2025 prior authorization data finds insurers denied at least 1 in 8 standard requests for prior authorization across three insurance markets: Medicare Advantage, Medicaid managed care, and the federally facilitated ACA Marketplaces. Denial rates varied wide segments by insurer. The analysis highlights limitations of the data and challenges for consumers interpreting it.
In a new column, Dr. Drew Altman, KFF's Founding President and CEO, discusses how New Mexico made childcare universal and became the only state to fully replace lost enhanced ACA tax credits while its leaders avoided polarizing labels like “progressive or “socialist.”
ACA Marketplaces insurers are proposing a median premium increase of 15% in 2027, according to KFF's updated analysis of 276 insurers with publicly available filings across all 50 states and the District of Columbia.
Following several years of rapid enrollment growth in the Affordable Care Act (ACA) Marketplaces that corresponded with temporary enhanced premium tax credits, enrollment fell for the first time in seven years in 2026, when those tax credits expired. Every state except for New Mexico saw a drop in ACA Marketplace enrollment from 2025 to 2026. State-based Marketplaces that run their own enrollment platforms, including those that partially offset the expiring federal enhanced tax credits, generally…
Health care costs top the list of voters’ health care priorities for the midterm elections, though more than half of Republican voters say it is extremely important for candidates to discuss the issue of fraud in government health programs, according to a new KFF Health Tracking Poll. Most voters say there is at least “some” fraud in government health programs, but larger shares of voters see fraud in the tax system, defense, and foreign aid…
As the 2026 midterms approach, health care costs remain voters' top health priority, but fraud in government health programs, including Medicaid and Medicare, is resonating with Republican voters, 55% of whom say it's extremely important for candidates to address. Most voters say there is at least “some” fraud in government health programs, but larger shares say there is fraud in the tax system, defense, and foreign aid, while the smallest share sees fraud in the…
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.
Enrollment dropped 13% following the expiration of enhanced premium tax credits at the beginning of this year. Enrollment fell from a high of 22.1 million people in 2025 to 19.2 million people in February 2026. While the Trump administration attributes this drop in enrollment to their attempts to address fraud, this coverage loss happened at the same time millions of people faced steep increases in their premium payments – often in the double or even…
This interactive tracks announced insurer exits from and entries into the ACA Marketplaces for 2027.
FAQs: Health Insurance Marketplace and the ACA Find answers to frequently asked questions about buying coverage on the health insurance marketplaces. Preguntas frecuentes: mercado de seguros de salud y ACA En nuestras preguntas frecuentes podrá encontrar las respuestas a las preguntas más comunes sobre seguros médicos. This list of Frequently Asked Questions (FAQs) about the Medicare Open Enrollment period covers a range of topics related to enrollment, including Medicare Advantage, Part D, Medigap, and more.…
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