Affordable Care Act

The ACA MarketplaceS

Change in February effectuated enrollment, by state, 2025-2026

How Has ACA Marketplace Enrollment Changed Across States in 2026?

ACA Marketplace enrollment fell this year in every state except New Mexico, which was the only state to fully replace the enhanced premium tax credits that expired last year with a state-funded subsidy, according to a new KFF analysis of effectuated enrollment data. The Marketplace enrollment decline—the first in seven years—follows several years of rapid enrollment growth and coincides with the end of the enhanced federal subsidies.

How Much and Why ACA Marketplace Premiums Are Going Up in 2027

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. This is the second consecutive year of double-digit premium hikes. Last year’s median nationwide proposed rate change was 18%, and the median finalized rate change was 20%. While this proposed rate change is lower than last year, it represents the second-highest requested rate change since 2018, as premium growth had been relatively flat in this market for several years.

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?

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  • Health Insurance Market Reforms: Pre-Existing Condition Exclusions

    Fact Sheet

    Insurers pursue multiple strategies to reduce the cost of covering enrollees with pre-existing conditions, or medical conditions and health problems that existed before the individual enrolled in a health plan. One strategy, the pre-existing condition exclusion, allows insurers to refuse to cover any costs associated with care for a pre-existing condition permanently or over a period of time. Beginning January 1, 2014, insurers in the individual and group markets will be prohibited from imposing pre-existing…

  • Doing More and Defying Labels in New Mexico

    From Drew Altman

    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.”

  • State Marketplace Profiles: Delaware

    Other Post

    Final update made on October 10, 2013 (no further updates will be made) Establishing the Marketplace In July 2012, Governor Jack Markell (D) indicated that Delaware would begin planning for a State Partnership Marketplace.1  Delaware will retain plan management and consumer assistance functions, and defer other Marketplace management functionality to the federal government.2  In July 2013, the state announced that the Marketplace would be called Choose Health Delaware. The Delaware Health Care Commission, housed within the Department…

  • State Marketplace Profiles: Massachusetts

    Other Post

    Final update made on September 29, 2013 (no further updates will be made) Establishing the Marketplace On April 12, 2006, former Governor Mitt Romney (R) signed into law comprehensive health reform legislation designed to provide near-universal health coverage for state residents.1  The Massachusetts health reform law became the model for national health reform. An important component of the law was the creation of the Massachusetts Health Connector, a health insurance marketplace that manages several coverage programs.…

  • State Marketplace Profiles: Iowa

    Other Post

    Final update made on November 18, 2013 (no further updates will be made) Establishing the Marketplace On December 14, 2012, Governor Terry Branstad (R) informed federal officials that Iowa would pursue a State-federal Partnership Marketplace.1  Iowa will assume plan management functions in the Marketplace and will continue to perform Medicaid and CHIP eligibility determinations. The state intends to transition to a fully State-based Marketplace in 2016. Contracting with Plans: The Iowa Insurance Department (IID) is responsible…

  • State Exchange Profiles: Georgia

    Other Post

    Final update made on December 11, 2012 (no further updates will be made) Establishing the Exchange On November 16, 2012, Governor Nathan Deal (R) announced that the Georgia had stopped planning for an exchange.1 In the previous year Governor Deal issued an Executive Order to create the Georgia Health Exchange Advisory Committee to assess whether and how Georgia should establish a health benefit exchange.2 The 25-member Committee included state officials, insurers, brokers, business representatives, consumers, and providers.3 The…

  • State Marketplace Profiles: Washington

    Other Post

    Final update made on November 22, 2013 (no further updates will be made) Establishing the Marketplace On May 11, 2011, Governor Christine Gregoire (D) signed SB 5445 into law establishing the Washington Health Benefit Exchange (HBE).1  Additional legislation signed by the Governor in March 2012, removed limitations on the Board’s governing authority over the Marketplace (HB 2319).2  In October 2012, the state announced that the online Marketplace would be called Washington Healthplanfinder. Structure: The legislation defines Washington’s Marketplace…