Iran is charging oil tankers $1 per barrel in bitcoin to cross the Strait of Hormuz, marking the first time a sovereign state has required crypto payment for access to a critical global shipping lane.

Iran has announced it will charge shipping companies $1 per barrel of oil in cryptocurrency to transit the Strait of Hormuz during the two-week ceasefire with the United States — the first time a sovereign state has formally required bitcoin as payment for access to a critical global shipping lane. Hamid Hosseini, spokesperson for Iran’s Oil, Gas and Petrochemical Products Exporters’ Union, described the system to the Financial Times: tankers must email cargo details to Iranian authorities, who assess the vessel and then instruct crews to settle in digital assets such as bitcoin within seconds of approval. A fully loaded VLCC supertanker carrying roughly two million barrels could face a toll approaching $2 million per crossing.

The Strait of Hormuz carries approximately 20% of the world’s oil and liquefied natural gas supply. Before the conflict, between 100 and 120 commercial vessels transited the lane daily, according to data from Kpler. Iran’s parliament formally codified the toll structure in the “Strait of Hormuz Management Plan,” approved March 30–31, 2026. Fees vary by vessel type and country of origin, with ships linked to the U.S. or Israel denied transit entirely.

This story is an excerpt from the Unchained Daily newsletter.

The arrangement fits Iran’s established sanctions-evasion strategy. Blockchain analytics firm TRM Labs documented that the IRGC has routed approximately $1 billion through offshore stablecoin infrastructure, exploiting crypto’s low transaction costs and reach outside U.S. correspondent banking. Iran’s bitcoin use in this context is an extension of that playbook, not a departure from it. Bitcoin was also cited in Iranian bitcoin transaction volume surges tracked by The Block in March 2026, as regional tensions escalated.

The geopolitical picture darkened quickly. By Thursday morning, Iranian Parliament Speaker Mohammad Bagher Ghalibaf said three clauses of the ceasefire proposal had been violated. Brent crude rebounded approximately 2% to around $97 after a more-than-10% single-day collapse on Wednesday — its worst plunge in six years. The White House said the ceasefire requires the strait to be open “without limitation, including tolls,” and the strait remained effectively closed to normal tanker traffic as of Thursday.

For investors, the story cuts two ways. The bitcoin toll system hands the asset a new, if contested, role in sovereign commerce. But the ceasefire’s fragility and rebounding oil prices suggest the macro risk that bitcoin priced out on Tuesday is pricing back in.