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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

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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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  • How long after I enroll in a plan will coverage take effect?

    FAQs

    During Open Enrollment in HealthCare.gov and some other states, if you enroll in a private health insurance plan by December 15 and make your first premium payment by the due date specified by your plan, your new health coverage will start January 1. If you sign up after December 15, your coverage will begin on February 1. If you sign up for a Marketplace plan during a special enrollment period, your coverage will usually take…

  • I received a Form 1095-B in the mail. What’s that?

    FAQs

    Health insurance companies, certain employer-sponsored health plans, and public health programs such as Medicaid may provide you with documentation indicating the months during the prior year when you were covered under the plan. Coverage providers may send Form 1095-B directly to you, but in some cases, you may have to request a Form 1095-B from the coverage provider. If you were enrolled in family coverage, Form 1095-B will indicate the names of all family members who were…

  • What’s Driving the GOP Health Plan

    From Drew Altman

    This was published as a Wall Street Journal Think Tank column on May 30, 2014. Conservative House Republicans are pushing for a vote on a GOP health-care plan, presumably to appeal to their base, to give GOP candidates health reform ideas to talk about on the campaign trail and to show that they have a policy position beyond repealing the Affordable Care Act. Polling shows they have a ways to go. The Kaiser Family Foundation’s May tracking poll…

  • Medicaid Enrollment Snapshot: December 2013

    Issue Brief

    This report focuses on changes in monthly Medicaid enrollment between December 2012 and December 2013. This is a long standing report series that collects monthly Medicaid enrollment data for December (and June, not reported here) going back to 2000. While the most recent data included in this report predate preliminary data released by CMS that show the early effects of full implementation of the ACA, this report series is an important source of historical trend…

  • Strategies in 4 Safety-Net Hospitals to Adapt to the ACA

    Issue Brief

    This brief examines four safety-net hospitals to learn how they were preparing for the full implementation of the Affordable Care Act (ACA), in order to gain additional insight into the strategies being used and challenges being faced among safety-net hospitals across the country.

  • How Much Political Coverage of the Health-Care Law Is Too Much?

    From Drew Altman

    This was published as a Wall Street Journal Think Tank column on June 5, 2014. With primaries underway and the midterms approaching, coverage of the Affordable Care Act will increasingly focus on politics. Many political reporters may take temporary control of the health-care beat during the leadup to November. News organizations should consider: How much Affordable Care Act political coverage is too much? Already, the public says that coverage of the ACA is mostly about politics rather…

  • Medicaid Enrollment: An Overview of the CMS April 2014 Update

    Fact Sheet

    CMS recently released its latest update on Medicaid and CHIP enrollment data, covering the period through April 2014. This fact sheet provides a brief overview of the latest data and what it suggests about the impact of the ACA on Medicaid and CHIP enrollment, providing historical trends for context

  • Does the Affordable Care Act Cover the Uninsured?

    From Drew Altman

    Drew Altman, in The Wall Street Journal's Think Tank, discusses what a new Foundation survey finds about one of the biggest questions about the Affordable Care Act: whether it covers the uninsured.

  • Data Note: Differences In Public Opinion On The ACA’s Contraceptive Coverage Requirement, By Gender, Religion, And Political Party

    Feature

    One of the most politically polarizing elements of the Affordable Care Act (ACA) is the law’s requirement that new private health insurance plans cover prescription contraceptives and services, including all methods approved by the Food and Drug Administration. The rule currently provides an exemption for houses of worship and an “accommodation” for religiously affiliated non-profit employers who object to providing contraceptive coverage; however all for-profit employers that provide health insurance must include this benefit. Over…

  • Issue Brief Explores Consequences of Potential Supreme Court Decisions on the ACA Contraceptive Coverage Requirement

    News Release

    A new Kaiser Family Foundation issue brief explores some of the factors influencing employers’ coverage decisions and possible consequences for employers and workers that could arise from possible Supreme Court decisions in the cases brought by Hobby Lobby and Conestoga Wood Specialties, for-profit corporations challenging the Affordable Care Act’s requirement to cover contraceptive services and supplies in health insurance. Other resources about the Supreme Court case are also available online.