Action: Cost Estimate “Estimated Budgetary Effects of H.R.1, the One Big Beautiful Bill Act” What it does: This week, the Congressional Budget Office (CBO) released its official scoring of the House reconciliation bill Republicans are using to advance the President’s legislative agenda. In conjunction with staff from the Joint Committee on Taxation (JCT), CBO projects that the reconciliation bill that passed the House, including tax provisions, new outlays, and spending reductions, will increase the deficit by more than $2.4 trillion between 2025 and 2034. CBO analyzed the bill by titles and committees of jurisdiction. The title of the bill with the largest deficit impact is the tax policy changes under the jurisdiction of the Committee on Ways and Means, including extensions of the expiring provisions of the Tax Cuts and Jobs Act and new tax cuts the President has proposed. CBO projects these tax policy changes will increase the deficit by more than $3.7 trillion over the next decade. The bill also contains increases in outlays for defense spending under the Committee on Armed Services ($144 billion over 10 years) and border security spending under the Committees on Homeland Security ($79 billion over 10 years) and the Judiciary ($73 billion over 10 years). To offset the deficit impact of these revenue losses and higher outlays, the bill includes significant cuts to health, education, and social safety net spending under the jurisdictions of the Committees on Energy and Commerce (deficit reduction of $1.1 trillion over 10 years), Education and Workforce (deficit reduction of $349 billion over 10 years), and Agriculture (deficit reduction of $238 billion over 10 years).Key Insights