CBO Says House Republican Tax Bill Would Add $2.42 Trillion to Deficits Over 10 Years

The Congressional Budget Office (CBO) has estimated that the Republican tax bill recently passed by the House would increase U.S. budget deficits by $2.42 trillion over the coming decade. That projection reflects the CBO’s assessment of the bill’s combined effects on federal revenues and spending.

How the Change in Deficits Is Calculated

The CBO analysis shows the deficit increase stems from two primary components: a reduction in federal tax revenues totaling $3.67 trillion and proposed spending cuts of $1.25 trillion. Taken together, the larger revenue losses are only partially offset by the spending reductions, resulting in a net rise in cumulative deficits of $2.42 trillion over ten years.

Major Provisions in the Bill

The package includes several high-profile provisions that largely account for the revenue losses cited by the CBO. Among the changes are:

• Making the tax cuts enacted in 2017 permanent, rather than allowing some provisions to expire as originally scheduled;
• Eliminating taxes on tips and overtime pay, which would reduce taxable income for affected workers;
• Raising the cap on the state and local tax (SALT) deduction, increasing the amount of state and local taxes that some taxpayers can deduct on their federal returns.

These elements are designed to lower tax burdens for certain individuals and households, but according to the CBO they would also materially reduce federal receipts, contributing to larger deficits unless offset elsewhere.

Responses and Political Context

Officials in the Trump administration have argued that the economic growth they expect to follow from the tax changes will offset much of the revenue loss over time. Proponents claim that lower tax rates and broader deductions could stimulate consumer spending, business investment, and job creation—factors that could increase taxable income and, in theory, boost revenues.

However, the CBO’s budget estimate takes a more direct view of the legislation’s near-term fiscal impact and does not assume growth will fully neutralize the revenue reductions. Because the bill was passed by the House, it must still clear the Senate, where it faces political obstacles and opposition. Some lawmakers in the Senate have already signaled reservations, and the bill remains controversial across the broader political spectrum.

Concerns From Fiscal Conservatives and Other Critics

Fiscal conservatives and budget hawks have criticized the proposal for its projected effect on the national debt. Their concern centers on the magnitude of the net deficit increase and the long-term implications of permanently extending tax cuts without equivalent, reliable offsets.

Critics argue that a sustained increase in the deficit could reduce fiscal flexibility for future policymakers, increase interest costs, and place pressure on funding for other priorities. Supporters counter that economic gains triggered by tax relief could mitigate those risks, but the CBO estimate underscores the potential scale of the budgetary trade-offs involved.

What Comes Next

With the CBO score public, lawmakers in both chambers will weigh the fiscal projections as they negotiate the bill’s next steps. If the Senate considers the measure, amendments and revisions are likely as lawmakers attempt to reconcile revenue and spending impacts with their policy goals and political constituencies.

For now, the CBO’s estimate offers a clear, quantified view of the legislation’s projected budgetary consequences: a net increase in deficits of $2.42 trillion over ten years, driven by a $3.67 trillion drop in revenues offset by $1.25 trillion in spending reductions.