US trade deficit widens to $105.6 billion, highest since before tariffs

The U.S. trade deficit widened to $105.6 billion in August, the Commerce Department reported October 6, 2026, marking the highest monthly gap since the all-time high recorded in March 2025, just before President Donald Trump announced his "liberation day" reciprocal tariffs. The goods-only deficit reached $136.6 billion, while the services sector maintained a $31.0 billion surplus. The August gap exceeded expectations by $3.6 billion, surpassing the Dow Jones consensus forecast of $102 billion.

The August surge reflected a 13.7% jump from July's revised $92.8 billion deficit, driven by a sharp rise in imports outpacing a modest gain in exports. Imports climbed 4.3% to $420.8 billion while exports increased just 1.4% to $315.2 billion. Capital goods—semiconductors, computers, telecommunications equipment and other machinery—ran 57.2% higher than August 2025 levels, according to Haver Analytics' analysis of Commerce Department trade data.

AI infrastructure and capital goods drove the import surge

The centerpiece of August's import growth was capital goods tied to artificial intelligence infrastructure buildout. Imports of semiconductors and other AI-related capital goods climbed sharply as companies invested heavily in AI data center expansion. According to Minneapolis Federal Reserve research, imports of AI-relevant goods in 2026 were 111 percent higher in nominal dollars than the monthly average in 2023.

The breadth of AI-related imports extends far beyond semiconductors. The Minneapolis Fed identified 645 product categories with high AI relevance, including refined copper for wiring and specialized cooling equipment essential to data center operations. Taiwan and Mexico each supplied approximately 25 percent of AI-related U.S. imports, with Mexico's share reflecting its role in producing electrical systems and cooling products.

Industrial supplies imports jumped an additional 16.6% month-over-month, according to Haver Analytics. According to the Minneapolis Fed, without AI-driven trade flows, the U.S. trade deficit would have been 16 percent smaller in 2025.

Tariff timing and inventory building amplified the August gap

The August deficit marked the widest monthly gap since the all-time high recorded in March 2025, just before Trump announced his "liberation day" reciprocal tariffs against trading partners.

The goods trade deficit alone climbed to $132.6 billion in August, according to Haver Analytics, the largest such gap since March 2025. Imports surged 5.5% to $336.05 billion—the highest level since March 2025—marking the sixth monthly rise in seven months. Year-over-year comparisons showed exports up 14.5% but imports climbed 27.9%, highlighting the growing imbalance.

This import surge contrasts with the longer-term trend: through August 2026, the cumulative goods and services deficit narrowed $138.2 billion, or roughly 20%, relative to the first eight months of 2025.

Trade's drag on GDP and the tariff regime's mixed effects

Forecasters expect the August trade figures to weigh on third-quarter GDP growth. Net exports—the formula in which exports minus imports contributes to GDP calculations—led Goldman Sachs to cut its third-quarter growth tracking estimate to 3.1%, down 0.3 percentage point, while the Atlanta Fed's GDPNow tracker fell to 3.7%, down 0.1 percentage point, after the report. The trade deficit acts as a headwind even as domestic consumption and business investment remain robust.

The August figures highlight a central tension in the tariff regime. Capital goods imports—which represent productive business investment rather than consumption—are growing at exceptional rates despite tariff policy designed to reduce imports. AI-related imports face significantly lower effective tariffs (4.5 percent) compared to non-AI goods (12.1 percent), with exemptions covering roughly 69 percent of AI-related imports largely through consumer electronics carve-outs. This means tariffs have had limited power to constrain the goods driving August's deficit surge.

For business readers, the August deficit signals that tariff policy operates unevenly across the economy. While tariffs compress trade in traditional goods, capital goods for AI infrastructure continue flowing in at exceptional rates, shaping both near-term GDP calculations and the longer-term competitive landscape for American companies.

Related coverage: Tariff duty rates start with a 10-digit code, then layer on political choices; Why companies are racing to invest billions in AI infrastructure; FERC Orders Grid Operators to Speed Up Data Center Power Hookups.