Coverage Trends

Blog

ACA Marketplace Enrollment Shrank in Nearly Every State After Premium Tax Credit Enhancements Expired

July 20, 2026 - Claire Heyison

Enrollment in the Affordable Care Act marketplaces shrank in nearly every state after premium tax credit enhancements expired.

Report

Health

Higher Marketplace Premiums Take a Toll on Enrollment and on Marketplace Enrollees

May 18, 2026 - Jennifer Sullivan and Elizabeth Zhang

Blog

Health

New Data Show Marketplace Consumers Facing Higher Costs, Selecting Lower-Quality Coverage

April 2, 2026 - Nicole Rapfogel

Research Note

Health

Nearly 3 Million Uninsured Adults Would Gain a Path to Medicaid Coverage if Their States Adopted ACA Medicaid Expansion

March 19, 2026 - Elizabeth Zhang

Research Note

Health

Closing Medicaid Coverage Gap Would Provide Over 1.5 Million Uninsured Adults Path to Affordable Health Coverage

April 10, 2025 - Elizabeth Zhang

Policy Basics

Health

Introduction to Medicaid

November 4, 2025

Chart Book

Health

Accomplishments of Affordable Care Act

March 19, 2019

People Who Rely on the ACA Marketplaces Face Mounting Affordability Challenges

February 5, 2026 - Jennifer Sullivan

Report

Health

Five Key Changes to ACA Marketplaces Amid Uncertainty Over Premium Tax Credit Enhancements

September 22, 2025 - Jennifer Sullivan and Nicole Rapfogel

Blog

Federal Tax

Congress Should End Pass-Through Tax Break for Millionaire Business Owners, Extend Tax Credit That Helps Small Business Owners Buy Health Coverage

March 28, 2025 - Samantha Jacoby

Blog

Health

Policies Designed to Strengthen ACA Marketplaces Succeed, But Are Under Threat

March 3, 2025 - Jennifer Sullivan

Policy Basics

We track health insurance coverage trends, and we work with federal and state policymakers and private advocates to expand coverage, especially for people with low and moderate incomes.

Introduction to Medicaid

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