Enrollment in Affordable Care Act health insurance marketplaces has dropped by approximately 5 million people, according to a new analysis from KFF. The decline affects Healthcare.gov and other state-based marketplaces that provide coverage under the federal health law.

The enrollment decrease follows Congress's failure last year to extend enhanced premium subsidies that had made ACA coverage more affordable for many Americans. Without the additional financial assistance, many consumers have found the cost of marketplace plans increasingly difficult to afford.

Insurance industry observers note that rising premium costs are contributing to higher rates of policy cancellations, as enrollees in multiple states are skipping premium payments. This trend suggests that affordability challenges are affecting current policyholders' ability to maintain their coverage into 2026.

Meanwhile, healthcare providers continue to report widespread use of prior authorization requirements by insurance companies. The practice, which requires doctors to obtain approval before providing certain treatments or procedures, remains a point of contention between medical professionals and insurers despite previous industry commitments to reform the process.

The combination of declining enrollment and persistent administrative barriers in healthcare delivery highlights ongoing challenges in the health insurance system. These developments come as policymakers consider various approaches to healthcare funding and coverage expansion ahead of upcoming elections.