The Congressional Budget Office projects that President Trump’s recently enacted tax and spending law will add roughly $3.4 trillion to the federal deficit over the next ten years.
Signed on July 4, the law extends a variety of tax breaks, restores or introduces deductions related to tips and auto loans, and includes measures that reduce funding for Medicaid and nutrition assistance programs.
Supporters — mainly Republican lawmakers — contend the legislation prevents upcoming tax increases and will spur economic growth. However, the CBO’s analysis finds that anticipated economic gains are unlikely to fully offset the increased borrowing, and projects that more than 10 million additional people could be uninsured by 2034 as a result of the law’s cuts to health and benefit programs.
Beyond the headline deficit figure, the CBO highlights how the law’s mix of tax extensions and spending reductions will reshape fiscal priorities. Tax breaks included in the bill tend to favor households and industries that already benefit from lower tax rates, while reductions in federal assistance target programs that many low- and moderate-income families rely on. The net effect, according to the nonpartisan agency, is higher federal debt and a reduction in coverage and support for vulnerable populations.
Economists are divided on how much the tax changes will stimulate long-term economic activity. Proponents argue that lower taxes on individuals and certain businesses will increase investment and consumer spending, possibly leading to higher wages and job growth. Critics counter that unless the tax changes raise productivity, the short-term boost to demand will be outweighed by the long-term burden of higher deficits—resulting in higher interest rates and less fiscal room to respond to future recessions.
The CBO’s projection of an additional 10 million uninsured by 2034 stems from cuts to Medicaid funding and reduced food assistance, which can cause people to lose eligibility or access. Loss of coverage has broader implications beyond medical bills: it can reduce preventive care, worsen health outcomes, and increase uncompensated care costs for hospitals and local governments.
Policymakers now face competing priorities: maintain tax relief and encourage growth, or protect health and safety-net programs while keeping deficits in check. The CBO estimate adds urgency to debates over whether to offset some tax provisions with spending reforms that spare core safety-net programs, or to identify alternative revenue sources to limit long-term borrowing.
As the law is implemented, further analyses will monitor actual economic and budgetary outcomes. Changes in employment, wages, and program enrollment will determine how closely reality matches the CBO’s forecast. For now, the nonpartisan score underscores a central trade-off in fiscal policymaking: short-term tax relief and political goals versus long-term fiscal sustainability and programmatic support for millions of Americans.