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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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  • ACA Advertising in 2014 – Insurance and Political Ads

    Report

    This study analyzes the volume and content of political ads mentioning health care issues that aired in 2014 through Oct. 15, as well as health insurance spots promoting specific insurance products or encouraging enrollment in marketplace plans. It finds that about 14 percent of political ads in all races mention the Affordable Care Act, Obamacare or any of the law's specific provisions, mostly in a negative way.

  • For ACA Enrollees, How Much Premiums Rise Next Year is Mostly up to Congress

    Policy Watch

    Most customers with coverage through Affordable Care Act's marketplaces will face big premium increases next year if Congress doesn’t extend the temporary enhanced tax credits included in the American Rescue Plan Act (ARPA) of 2021. If the outcome isn’t clear by summer, fall open enrollment could be a mess.

  • Examining Prior Authorization in Health Insurance

    Policy Watch

    This post explains what's known about how insurers use prior authorization as a tool to control costs and encourage cost-effective care, the state and federal laws that govern it, and ongoing policy debates over efforts to impose standards to limit or regulate its use.

  • The Biggest Health Care Reform in a Decade Could Lower Your Costs

    Perspective

    Larry Levitt writes about the political and practical impact of the health care provisions in the Inflation Reduction Act  in The New York Times guest essay, “The Biggest Health Care Reform in a Decade Could Lower Your Costs.” 

  • 2022 Survey of ACA Marketplace Assister Programs and Brokers

    Report

    This survey of Marketplace assister programs and brokers tracks the experiences of professionals signing people up for Affordable Care Act coverage. It also examines the role that these programs expect to play when the COVID-19 public health emergency (PHE) ends, potentially ending Medicaid eligibility for millions of Medicaid enrollees.

  • County-Level Analysis Finds ACA Premiums are Falling in Many Areas of the Country, Though Changes Vary by County and Type of Plan

    News Release

    Premiums for the Affordable Care Act Marketplace benchmark silver plan are decreasing 3.1 percent on average across the country – the fourth year in a row that benchmark premiums have fallen – though the changes vary by county, a new KFF county-by-county analysis finds. The benchmark plan premiums are important because they are used to determine the tax credits available to people who buy their own insurance through the Marketplaces. What people would have to…

  • No Surprises Act Implementation: What to Expect in 2022

    Issue Brief

    The “No Surprises Act,” which establishes new federal protections against most surprise out-of-network medical bills when a patient receives out-of-network services during an emergency visit or from a provider at an in-network hospital without advance notice, will take effect next month. A new KFF brief outlines what to expect in 2022.

  • Surprise Medical Bills are Ending, But Controversy Continues

    Perspective

    In this column for the JAMA Health Forum, Larry Levitt examines how the No Surprises Act that prohibits unexpected out-of-network charges for patients could lead to lower payment rates and revenues for some doctors and other care providers.

  • People With HIV in Non-Medicaid Expansion States: Who Could Gain Coverage Eligibility Through Build Back Better or Future Expansion?

    Issue Brief

    In this analysis, we explore the implications of the Build Back Better Act's current coverage provisions for people with HIV in select non-expansion states. We estimate the size of the population that could gain eligibility as well as their socio-demographic characteristics, examine their affordability barriers and assess the potential impact on the Ryan White HIV/AIDS Program. We also explore what Medicaid expansion could mean in these non-expansion states for people with HIV.