Affordable Care Act

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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  • Challenges to Forecasting Obamacare Enrollment for 2015

    News Release

    In his latest column for The Wall Street Journal’s Think Tank, Drew Altman explains why 2015 enrollment in the Affordable Care Act’s marketplaces is very hard to predict. All previous columns by Drew Altman are available online.

  • Estimating Federal Payments and Eligibility for Basic Health Programs: An Illustrative Example

    Report

    In some states, policymakers and stakeholders are considering adoption of the Basic Health Program (BHP) option permitted under the Patient Protection and Affordable Care Act (ACA). Federal regulations allow BHP implementation beginning in 2015. Through BHP, consumers with incomes at or below 200 percent of the federal poverty level (FPL) who would otherwise qualify for subsidized qualified health plans (QHPs) offered in health insurance marketplaces instead are offered state-contracting standard health plans that provide coverage…

  • Mapping Marketplace Enrollment

    Interactive

    This interactive zip code tool and map displays enrollment in the Health Insurance Marketplaces as a share of the potential market in small geographic areas across the country.

  • 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…

  • Explaining Health Care Reform: Risk Adjustment, Reinsurance, and Risk Corridors

    Issue Brief

    This brief explains three provisions of the Affordable Care Act (ACA) – risk adjustment, reinsurance, and risk corridors – that were intended to promote insurer competition on the basis of quality and value and promote insurance market stability, particularly in the early years of reform as the ACA marketplaces, also known as exchanges, were established.

  • Women's Health Coverage promo

    How Does Where You Work Affect Your Contraceptive Coverage?

    Interactive

    The Affordable Care Act (ACA) requires most private health insurance plans to provide coverage for a broad range of preventive services including FDA approved prescription contraceptives and services for women. Legal challenges and recently issued rules have affected contraceptive coverage for many women.

  • Quantifying Tax Credits for People Now Buying Insurance on Their Own

    Issue Brief

    This analysis estimates that Americans currently buying insurance on the individual market would receive $2700 in subsidies (as tax credits) in 2014 under Obamacare. Tax credits are available for qualifying people buying insurance through the new health care marketplaces, or exchanges.