Iran maintains the Persian Gulf Strait Authority established in May 2026 to administer transit permits and collect fees through the Strait of Hormuz, with the Islamic Revolutionary Guard Corps overseeing selective vetting, codes, and escorts for approved vessels. Reports indicate some operators have paid amounts equivalent to roughly $1 per barrel or up to $2 million per VLCC transit, settled in yuan or cryptocurrency, though no uniform public tariff applies and many transits rely on diplomatic arrangements or avoid direct charges. The United States has sanctioned related financial channels and entities, while opposing any toll regime under international law; interim U.S.-Iran understandings have included temporary free-passage windows. Iranian parliamentary steps toward cargo-seizure authority and blacklisting of non-compliant ships add pressure, alongside analyst observations of quiet payments amid elevated war-risk premiums and shuttle operations. Resolution hinges on whether formal, systematic collection expands before any market deadline amid ongoing diplomatic and enforcement dynamics.