U.S. President Donald Trump said on Monday that Washington will introduce a 25% tariff on imports from countries trading with Iran, effective immediately.
In a social media post, Trump said the new measure would apply to any country maintaining commercial ties with Iran, adding that "this order is final and conclusive."
Further details on the import duties were not immediately released.
According to 2022 data, Iran’s total trade volume stands at $139.63 billion, made up of $80.9 billion in exports and $53.73 billion in imports, with China, Türkiye, the United Arab Emirates and India ranking among its leading trade partners.
In the first 11 months of 2025, Türkiye’s exports to Iran totaled $2.74 billion and imports reached $2.52 billion, bringing total bilateral trade to $5.26 billion. Türkiye’s main exports to Iran include machinery and equipment, plastics and chemical products, agricultural goods and metal ores. On the import side, Iran accounts for nearly 20% of Türkiye’s natural gas supplies, alongside shipments of metal products and agricultural goods.
On the other hand, both countries share a 560-kilometer land border that has remained largely unchanged for centuries and serves as a major conduit for overland trade and transit between Türkiye, Iran and wider Eurasian markets.
The announcement comes amid escalating U.S.–Iran tensions, despite the White House earlier saying that President Trump “has an interest” in exploring diplomacy with Tehran.
Inside Iran, both pro-government and anti-government rallies were reported as demonstrations entered their 16th day over worsening economic conditions, with hundreds reported killed and thousands arrested, according to rights groups and local reports.
The White House said a range of responses remains under consideration as the protests stretch into a third week, with Trump having repeatedly warned of military action if security forces use lethal force against demonstrators. "Air strikes would be one of the many, many options that are on the table," White House Press Secretary Karoline Leavitt said earlier on Monday.
At the same time, she said Iran also has a diplomatic channel open to Trump’s special envoy Steve Witkoff, adding that Tehran is taking a "far different tone" in private discussions than in its public statements.