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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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  • Federal Funding Under the Affordable Care Act

    Fact Sheet

    This fact sheet provides highlights from an analysis tracking the flow of federal Affordable Care Act funds to states as reporter in the Department of Health and Human Services grant database as well as periodic reports from HHS and the Internal Revenue Service. The analysis distinguishes between funds awarded to state and local governments (including state and local health departments and school districts) and private entities (including private employers, health centers, universities, and other community-based…

  • Medicaid Eligibility, Enrollment Simplification, and Coordination under the Affordable Care Act: A Summary of CMS’s March 23, 2012 Final Rule

    Issue Brief

    This brief provides a summary of the Centers for Medicare and Medicaid Services' (CMS) March 23, 2012 final rule to implement the ACA provisions relating to Medicaid eligibility, enrollment simplification and coordination. The rule, which is effective Jan. 1, 2014, lays out procedures for states to implement the Medicaid expansion and the streamlined and integrated eligibility and enrollment system created under the ACA. Achieving this goal will require substantial process and system changes among state…

  • The Cost of Cancer

    Video

    This Kaiser Family Foundation documentary explores the financial consequences faced by three people, all privately insured, after being diagnosed with cancer. It was released in conjunction with a joint Kaiser/American Cancer Society report, "Spending To Survive: Cancer Patients Confront Holes in the Health Insurance System." The Cost of Cancer: Tom Olszewski Tom Olszewski, a retiree who lives in Texas, had prostate cancer but has been in remission for a decade. His medical history made it…

  • 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 Exchange Profiles: Nebraska

    Other Post

    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

    Other Post

    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

    Other Post

    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

    Other Post

    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

    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 Marketplace Profiles: District of Columbia

    Other Post

    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…