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The ACA MarketplaceS

How Has Marketplace Enrollment Changed Across States in 2026?

Following several years of rapid enrollment growth in the 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 Marketplace enrollment from 2025 to 2026. State-based Marketplaces that run their own enrollment platforms, including those that partially offset the enhanced tax credits, generally saw lower drops in enrollment.

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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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  • State Exchange Profiles: Ohio

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    Final update made on March 25, 2013 (no further updates will be made) Establishing the Exchange On November 16, 2012, Governor John Kasich (R) notified federal officials that Ohio would default to a federally-facilitated exchange; however, the state would maintain regulatory control over its insurance industry.1 The Governor also indicated Ohio would maintain control over Medicaid eligibility determinations. Prior to the announcement, the Department of Insurance in collaboration with other stakeholder agencies solicited subcontractors’ assistance for…

  • State Exchange Profiles: Arizona

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    Final update made on December 4, 2012 (no further updates will be made) Establishing the Exchange  On November 28, 2012, Governor Jan Brewer (R) informed federal officials that Arizona would default to a federally-facilitated health insurance exchange.1 Prior to her decision to default, the Governor had established the Office of Health Insurance Exchange to “organize the health insurance marketplace for easier evaluation by individuals and small businesses to acquire affordable health insurance.”2 While legislation establishing a…

  • State Exchange Profiles: Florida

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    Final update made on December 14, 2012 (no further updates will be made) Establishing the Exchange In December 2012, Governor Rick Scott (R) announced that Florida would not be pursuing efforts to implement a state-based health insurance exchange.1 Governor Scott has been a vocal opponent of federal health reform and the state has refused multiple funding opportunities available through the Affordable Care Act (ACA).2 Florida was also the lead plaintiff in a lawsuit brought by 26 states…

  • State Marketplace Profiles: Massachusetts

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    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 Exchange Profiles: Mississippi

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    Final update made on February 11, 2013 (no further updates will be made) Establishing the Exchange In October 2011, Mississippi’s elected Commissioner of Insurance Mike Chaney (R) announced that the state would establish a Health Insurance Exchange that would be operated by the Mississippi Comprehensive Health Insurance Risk Pool Association and regulated by the Insurance Department.1 However, Governor Phil Bryant (R) has opposed the effort to establish a state-based exchange. The Comprehensive Health insurance Risk Pool…

  • State Exchange Profiles: Maine

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    Final update made on April 2, 2013 (no further updates will be made)  Establishing the Exchange On November 16, 2012, Governor Paul LePage (R) wrote in a letter to federal officials that Maine would not be pursuing efforts to implement a state-based health insurance exchange.1 Legislation establishing a state-run health insurance exchange failed to pass in 2011 and 2012. Prior to ending planning efforts, the Governor created an exchange Advisory Committee in July 2011, which included…

  • State Exchange Profiles: New Jersey

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    Final update made on December 10, 2012 (no further updates will be made) Establishing the Exchange  On December 7, 2012, Governor Chris Christie (R) vetoed A 3186/S 2135, which would have established a health insurance exchange within the Department of Banking and Insurance and announced that the state would default to a federal exchange.1Governor Chris Christie (R) vetoed similar legislation earlier in 2012.2 In 2011, the New Jersey Interagency Working Group on the ACA, led…

  • State Exchange Profiles: Oklahoma

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    Final update made on December 13, 2012 (no further updates will be made) Establishing the Exchange  On November 19, 2012, Governor Mary Fallin (R) announced that Oklahoma would not pursue the creation of a state-based health insurance exchange.1 Prior to the announcement, Oklahoma had established the Joint Committee on Federal Health Care Law to explore the state’s options regarding federal health reform, including exchange implementation in the state.2 The Joint Committee convened in 2011 and released final exchange…

  • State Marketplace Profiles: Delaware

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    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: New Hampshire

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    Final update made on November 1, 2013 (no further updates will be made) Establishing the Marketplace On June 18, 2012, Governor John Lynch (D) signed HB 1297 into law, which prohibits the state from participating in or enabling a state-based health insurance Marketplace. However, HB 1297 allows for state agencies or departments to “operate specific functions of a federally-facilitated exchange."1  Given this authority, newly-elected Governor Maggie Hassan (D) informed federal officials on February 13, 2013 that…