Mexico largest U.S. trading partner 2026, Digi Mart USA News: Mexico accounted for 16.9% of total U.S. trade during the first nine months of 2026, consolidating its position as the country’s main trading partner.
Canada followed with 12.4% and China with 6.5%, according to U.S. foreign trade figures reported by Fortuna y Poder.
Mexico’s share rose from 15.6% recorded across all of 2025. Taiwan also gained ground, increasing its share from 4.6% to 5.6%, while China continued to lose share, falling from 7.4% to 6.5%.
According to data published Wednesday by the Bureau of Economic Analysis (BEA), Mexico, Canada, China, Taiwan and Vietnam together accounted for 46.1% of total U.S. trade between January and September.
Mexico also stood out for its weight in the U.S. trade deficit, accounting for 20% of the total.
That share was close to the 20.8% attributed to Vietnam.
Banco BASE said in an analysis that the U.S. deficit with Mexico has grown faster than the deficit with Vietnam, and that Mexico could end 2026 as the country with which the United States runs its largest trade deficit.
On tariffs, Mexican imports recorded an average effective rate of 3.11% in September, down from 3.19% in August. As a result, Mexico moved from 28th to 30th among the 35 leading countries from which the United States imports.
The rate applied to Mexican products was also below the overall average effective rate collected by the United States, which was 6.49% in September. Despite this reduction, U.S.
tariff revenue reached $22,943 million during that month.
Among the 35 leading supplier countries, Cambodia had the highest average effective tariff rate at 20.64%, followed by China at 19.42%, Turkey at 15.25%, Indonesia at 13.96% and Japan at 10.13%.
By contrast, Canada’s effective tariff rate rose from 3.16% in August to 4.18% in September.
