Escalating ACA Premiums for 2027: Trends and Implications

Insurers participating in the Affordable Care Act (ACA) marketplaces are proposing significant premium increases for the second consecutive year, with preliminary filings indicating a median rise of 14% for 2027. This data, compiled by the Peterson-KFF Health System Tracker, includes information from 16 states and the District of Columbia, spotlighting the ongoing impact of escalating medical costs and recent policy adjustments.

Should these proposed rates gain approval, they would mark the largest increase since 2018, challenging enrollees who faced higher premiums in 2026 due to reductions in tax credit subsidies. Although the Biden administration aimed to enhance ACA uptake and reduce consumer expenses through increased subsidies, their cessation has led some insurers to adjust rates. As a result, ACA enrollment reportedly declined by 3 million individuals as of February compared to the previous year, affected partly by increased plan costs.

The primary driver behind these proposed premium hikes is the rising cost of healthcare services and the growing demand for high-priced specialty drugs, such as GLP-1s for weight loss. The Peterson-KFF report notes that approximately 4% of the requested premium increases are tied to the expiration of enhanced subsidies. The departure of younger, healthier individuals from ACA plans and an aging customer base requiring more comprehensive medical care are additional factors.

UnitedHealthcare cited 12.7% of its rate change request to policy changes and subsidy withdrawals in its filing with New York state, mirroring sentiments from several insurers. Increased severity and frequency of claims, exacerbated by sophisticated billing practices using artificial intelligence, are driving premium pressures. While these technological advancements improve billing efficiency, they influence costs across both the ACA market and employer-sponsored plans, with a PwC report forecasting a 9% increase in employer health coverage costs for 2027.

These premium adjustments particularly impact ACA enrollees earning just above 400% of the federal poverty level, as they are no longer eligible for subsidy assistance following the subsidy rollbacks. Conversely, those below this threshold continue to receive tax credits designed to offset premium expenses. Consequently, as premiums rise, subsidies also increase, cushioning some consumers while elevating government spending.

ACA marketplace participants are advised to review their coverage options when enrollment reopens in October 2027, which may necessitate plan changes to manage premium costs. According to Matthew Fiedler of the Brookings Institution, shopping for more affordable plans might be essential to maintaining current payment levels.

The ongoing adjustments to ACA premiums highlight the dynamic interplay between healthcare costs, policy decisions, and market responses, significantly influencing insurers' pricing strategies and consumer affordability.