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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: Nebraska

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    Final update made on December 19, 2013 (no further updates will be made) Establishing the Exchange On November 15, 2012, Governor Dave Heineman (R) announced that Nebraska would not establish a health insurance exchange.1Earlier in 2012, the Nebraska legislature introduced two bills (LB 835 and LB 838) to establish a health insurance exchange in Nebraska, however both failed when the legislative session concluded in April.2,3 In 2011, Governor Heineman signed LB 22 into law, which…

  • 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…

  • State Exchange Profiles: Montana

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    Final update made on April 19, 2013 (no further updates will be made) Establishing the Exchange In December 2012, Montana’s elected State Auditor Monica Lindeen (D) confirmed that the federal government would operate a health insurance exchange in Montana.1 The previous year, two proposed bills (HB620 and HB124) to establish a health insurance exchange in Montana failed.2,3 Instead, the legislature passed SB 228, a bill that would prohibit the creation of a health insurance exchange as proscribed…

  • State Marketplace Profiles: Michigan

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    Final update made on November 26, 2013 (no further updates will be made) Establishing the Marketplace While Governor Rick Snyder (R) supports the creation of a State-based Marketplace, he acknowledged on November 16, 2012, that without authorizing legislation, he would plan for a State-federal Partnership Marketplace.1  The state began moving in the direction of a partnership in August 2012 due to legislative opposition that left the state unable to meet the federal timetable for implementation.2  Michigan will…

  • State Marketplace Profiles: Iowa

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    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 Marketplace Profiles: District of Columbia

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    Final update made on October 1, 2013 (no further updates will be made) Establishing the Marketplace On December 20, 2011 the District of Columbia City Council gave final approval to a bill establishing the District of Columbia Health Benefit Exchange Authority (HBX) and in late January 2012, Mayor Vincent Gray (D) signed the legislation into law (Act 19-269).1  The bill was also subject to a 30-day Congressional review. In June 2013, the District of Columbia announced that its new…

  • State Marketplace Profiles: Rhode Island

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    Final update made on October 8, 2013 (no further updates will be made)  Establishing the Marketplace After the legislature failed to pass Marketplace legislation during the 2011 session, Governor Lincoln Chafee (I) signed Executive Order 11-09 on September 19, 2011, to establish the Rhode Island Health Benefit Exchange.1  In July 2013, Rhode Island announced that its Marketplace would be called HealthSource RI.2  Recommendations by the Rhode Island Healthcare Reform Commission largely informed the Governor’s decision to…

  • State Exchange Profiles: South Dakota

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    Final update made on April 19, 2013 (no further updates will be made)  Establishing the Exchange On September 26, 2012, Governor Dennis Daugaard (R) announced that South Dakota would not establish an exchange.1However, the state intends to maintain regulatory authority over the health insurance market and perform the plan management function for the exchange.2 The decision to have a federally-facilitated exchange was made after an inter-agency work group and a taskforce of stakeholders and legislators explored…

  • State Exchange Profiles: Indiana

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    Final update made on December 13, 2012 (no further updates will be made)  Establishing the Exchange In November 2012, Governor-elect Mike Pence (R) announced that he would not move forward with setting up a state-based health insurance exchange when he takes office in 2013.1 During his term, Governor Mitch Daniels (R) had signed Executive Order #11-01 in 2011 to conditionally establish and operate the Indiana Insurance Market, Inc., a nonprofit corporation to serve as the…

  • State Exchange Profiles: South Carolina

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    Final update made on December 10, 2012 (no further updates will be made) Establishing the Exchange On November 15, 2012, Governor Nikki Haley (R) informed federal officials South Carolina would default to a federally-operated health insurance exchange.1 This decision was largely based on findings from the South Carolina Health Planning Committee which had concluded the state cannot implement a state-based exchange as required by the Affordable Care Act (ACA) and should instead encourage the establishment of…