Iran Begins Collecting Transit Tolls in the Strait of Hormuz

The Strait of Hormuz is a critical chokepoint for global energy trade, and tolls imposed by Iran could destabilize oil prices worldwide.

• On April 23, 2026, Iran announced the first revenue from newly imposed tolls on ships transiting the Strait of Hormuz had been deposited into its Central Bank.
• The tolls, enforced by the Islamic Revolutionary Guard Corps, are seen as a means for Iran to assert jurisdiction over a waterway that carries approximately 20% of global oil supplies.
• Gulf states and the U.S. have rejected these tolls, citing violations of international maritime law and warning of increased shipping costs and geopolitical tensions.

• The Strait of Hormuz connects the Persian Gulf to the Gulf of Oman, serving as a vital route for oil shipments, with around 20.9 million barrels per day transiting before the recent conflict.
• Iran's toll legislation was drafted amid escalating tensions following the closure of the strait during the Iran-U.S. war, which began on February 28, 2026.
• Legal analyses have confirmed that these tolls violate UNCLOS, the United Nations Convention on the Law of the Sea, which prohibits fees on foreign vessels exercising transit passage.

Iran's decision to impose transit tolls on the Strait of Hormuz is a strategic maneuver aimed at asserting its control over a critical maritime route. The tolls, reportedly set at $2 million for select vessels, are enforced by the Islamic Revolutionary Guard Corps (IRGC) and are part of a broader geopolitical strategy following the onset of the Iran-U.S. war. This conflict began after U.S. and Israeli strikes led to the closure of the strait, significantly disrupting shipping traffic.

The tolls serve multiple purposes for Iran. Firstly, they provide a new revenue stream for the Iranian government, which is crucial given the economic sanctions and pressures it faces. The first revenue from these tolls was announced just weeks after the legislation was approved, indicating a swift implementation of this policy. Secondly, by imposing these fees, Iran seeks to establish its authority over the strait, which is vital for global oil transit. Approximately 20% of the world's oil passes through this narrow waterway, making it a strategic asset for Iran.

However, this move has drawn widespread condemnation from neighboring Gulf states, including the United Arab Emirates, Saudi Arabia, and Oman, all of which have rejected the legitimacy of these tolls. The U.S. has also declared that Iran cannot legally charge fees for passage through the strait, further complicating the situation. The European Union has urged Iran to abandon this policy, emphasizing the need for adherence to international maritime law.

The implications of these tolls extend beyond immediate financial concerns. Analysts warn that if Iran's tolls are accepted, it could set a dangerous precedent for other chokepoints around the world, potentially leading to increased shipping costs and volatility in global oil markets. As tanker operators are advised against paying these tolls, many are rerouting their vessels, which will likely increase shipping times and costs, further impacting global supply chains.

• Shipping companies: Facing increased operational costs due to rerouting and potential toll payments.
• Oil traders and markets: Experiencing volatility as geopolitical risks rise, affecting pricing strategies.
• Consumers in Dubai and the UAE: Likely to see elevated fuel prices and supply chain disruptions as energy imports and exports decline.
• Regional governments: Must navigate the diplomatic fallout and economic implications of Iran's tolls on their energy sectors.

• International legal responses: Monitor how global maritime organizations and countries react to Iran's tolls and whether any legal actions are taken.
• Shipping traffic patterns: Watch for changes in shipping routes and the impact on global oil supply chains, particularly in the Gulf region.
• Geopolitical negotiations: Keep an eye on ongoing negotiations involving Iran, the U.S., and Gulf states, as these could influence the future of tolls and regional stability.