Health insurance coverage in the USA is declining, driven by the expiration of enhanced Affordable Care Act (ACA) subsidies and post-pandemic Medicaid unwinding. Millions are dropping out of the market due to unaffordable premiums, while those who retain plans face narrower networks, stricter coverage denials, and higher out-of-pocket costs.

The decline in US health insurance coverage is a multi-layered crisis defined by three core issues:

Expiration of ACA Subsidies: The termination of enhanced premium tax credits caused premiums to skyrocket for millions. Consequently, an estimated 5 million customers are projected to exit the ACA marketplaces, with significant drops in monthly enrollment already being tracked state-by-state.

Medicaid Unwinding: The end of pandemic-era continuous enrollment rules resulted in massive Medicaid disenrollment, driving the first increase in the uninsured rate in recent years.

Rising Employer Costs: The soaring cost of employer-sponsored plans (averaging roughly $27,000 annually for families) has caused the percentage of small firms offering health benefits to drop. Meanwhile, approximately one in five privately insured adults reports coverage denials for doctor-recommended care.

You can track the state-by-state breakdowns of these changes using the KFF Uninsured Population Report or explore the Commonwealth Fund 2025 Affordability Survey regarding denied care.