CBO report finds nearly 11 million could become uninsured if reconciliation bill is enacted

A Congressional Budget Office report released June 4 found that enactment of the fiscal year 2025 budget reconciliation bill, the One Big Beautiful Bill Act (H.R. 1), would lead to 10.9 million people becoming uninsured in 2034 due to significant changes to the Medicaid program and Affordable Care Act coverage. A follow-up letter from the CBO provides more detail on how these changes would impact the number of uninsured. The CBO also estimated that the bill would lower gross benchmark premiums for marketplace plans under the ACA by an average of 12.2%.