CBO Highlights Fiscal Impact of Trump's Lost Tariff Revenue: Lower Inflation, Higher GDP, and $2 Trillion Deficit Rise

The U.S. deficit is projected to rise by $2 trillion from 2026 to 2036 due to the termination of tariffs under the International Emergency Economic Powers Act (IEEPA), according to a Congressional Budget Office (CBO) report. The ruling by the Supreme Court struck down most of President Donald Trump's tariffs, removing a key source of revenue that the administration had sought to use for economic initiatives and debt reduction. The loss of tariff revenue is expected to result in $1.6 trillion in primary deficits and $400 billion in interest outlays during the same period.

The CBO analysis notes that while the elimination of tariffs will reduce inflationary pressures, it will also undermine the administration's efforts to curb the U.S. trade deficit and stimulate domestic manufacturing. The decision provides relief for U.S. consumers and businesses by reducing import costs, but it comes at the expense of significant fiscal costs.

Tariffs have had a mixed impact on the U.S. economy, leading to modest trade deficit reductions but also stunting wage growth and causing a 166,000 loss in blue-collar jobs over the past year. Research indicates that importers and consumers bore most of the tariff costs, with Americans paying up to $1,700 annually due to increased import taxes. After the Supreme Court ruling, economists expect a reduction in these costs, with the average loss now estimated at $600 per household.

Why Did This Happen?

The Supreme Court's decision was driven by legal challenges to the executive use of IEEPA for imposing tariffs on imports. The ruling effectively removed the bulk of tariffs imposed by President Trump, leaving the administration without a key tool for reshaping the trade deficit and generating revenue.

CBO Director Phillip Swagel stated that the removal of tariffs will ease inflation and improve employment conditions, but it will also reduce government revenues by a significant margin. The CBO estimates that the loss of IEEPA tariffs will result in a $2 trillion deficit increase over the next decade.

Despite initial hopes that tariffs would help shrink the trade deficit, the results have been modest. February saw the trade gap narrow to $901 billion, only slightly below the $904 billion recorded in 2024.

How Markets Responded

Markets have responded to the ruling by adjusting to a new trade landscape. The administration's invocation of Section 122 of the Trade Act of 1974 has led to a 10% universal baseline tariff on imports, which has triggered a shift in corporate strategies toward regionalized supply chains.

Investors are watching how firms adjust to the new tariff structure. Companies involved in logistics and nearshoring have seen increased demand, while those reliant on international supply chains face higher costs. The move has also led to a shift in corporate capital expenditures, with businesses reassessing their exposure to inflation and global trade risks.

The market has entered a period of "legalized volatility," as companies recalibrate to a new economic reality. With the 10% surcharge acting as a baseline for import costs, the transition marks a shift from the "Just-in-Time" efficiency of the past decade to a more regionalized "Just-in-Case" model.

What Analysts Are Watching

Analysts are closely monitoring the long-term effects of the tariff policy reversal. While the CBO projects a reduction in inflation and an easing of labor market pressures, the benefits for consumers may take time to materialize.

The Yale Budget Lab has noted that it is still early to determine the full impact of tariffs on employment and price levels. While tariff-exposed industries show signs of weakness, the overall labor market has not yet shown significant aggregate effects.

The Cato Institute has also highlighted the financial implications of the remaining tariff revenue, which is sitting in the Treasury and accruing interest. This interest cost is expected to add $700 million per month to the national debt burden.

Goldman Sachs economists suggest that tariffs contributed to a 0.7% increase in inflation over 10 months and are expected to add just 0.1% to inflation in 2026 according to analysis. However, companies are unlikely to lower prices at the same rate they raised them under elevated tariffs, delaying consumer relief.