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The ACA MarketplaceS

Tracking Insurer Changes in the ACA Marketplaces in 2027

As of June 22, six carriers have announced that they will exit the Marketplaces in plan year 2027, either in some or all states that they are currently offering plans; four carriers have announced they will enter new Marketplaces.

An image of text is an excerpt from Cynthia Cox's quick take which reads, "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 triple digits — with the expiration of enhanced tax credits."

ACA Marketplace Enrollment Is Down By 3 Million After Big Jump in Premium Payments

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 triple digits – with the expiration of enhanced tax credits.

POLLING on the ACA

Tracking the Public’s Views on the ACA

While overall opinion of the Affordable Care Act has been more favorable than unfavorable since 2017, there remain deep partisan divides. See how public opinion on the ACA has changed from the inception of the law to the present. This interactive tool highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.

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  • Quick Take: Key Considerations in Evaluating the ACA Medicaid Expansion for States

    Fact Sheet

    A central goal of the Patient Protection and Affordable Care Act (ACA) is to significantly reduce the number of uninsured by providing a continuum of affordable coverage options through Medicaid and new Health Insurance Exchanges.  Following the June 2012 Supreme Court decision, states face a decision about whether to adopt the Medicaid expansion. These decisions will have substantial consequences for health coverage for the low-income population. The 3 key questions that states should consider in…

  • 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…

  • Explaining Health Care Reform: Medical Loss Ratio (MLR)

    Fact Sheet

    This fact sheet explains the Medical Loss Ratio requirement under the Affordable Care Act (ACA). The MLR provision limits the portion of premium dollars health insurers may spend on administration, marketing, and profits. Under health care reform, health insurers must publicly report the portion of premium dollars spent on health care and quality improvement and other activities in each state they operate. Insurers failing to meet the applicable standard must pay rebates to consumers and…

  • The Requirement to Buy Coverage Under the Affordable Care Act

    Other Post

    Note:  Congress eliminated the federal tax penalty for not having health insurance, effective January 1, 2019. Along with changes to the health insurance system that guarantee access to coverage to everyone regardless of pre-existing health conditions, the Affordable Care Act includes a requirement that many people be insured or pay a penalty. This simple flowchart illustrates how that requirement (sometimes known as an "individual mandate") works.     >>Download the PDF

  • 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: Mississippi

    Other Post

    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 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: 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…

  • State Marketplace Profiles: New York

    Other Post

    Final update made on September 30, 2013 (no further updates will be made) Establishing the Marketplace After the New York State legislature failed to pass exchange legislation, Governor Andrew Cuomo (D) signed Executive Order 42 on April 12, 2012, to establish the New York Health Benefit Exchange.1  In August 2013, the state announced that the online marketplace would be called NY State of Health.2  Structure: The Executive Order establishes the New York Health Benefit Exchange…