Iran says it will charge a ‘payment for services’ in the Strait of Hormuz

Iran’s announcement that it plans to charge a “payment for services” fee to vessels transiting the Strait of Hormuz marks a significant escalation in its long-running campaign to assert control over one of the world’s most critical maritime chokepoints. The strait, through which roughly a fifth of the world’s oil passes daily, has been a flashpoint for decades, with Iran threatening to disrupt shipping during periods of heightened tensions. By framing the move as a fee for services rather than a toll or tax, Tehran is attempting to normalize what many international observers will view as extortion—undermining the principle of freedom of navigation enshrined in maritime law. This tactic could embolden Iran to further monetize its control over strategic waterways, particularly if no major power responds decisively. Historically, Iran has used the strait as a leverage point during crises, such as during the 1980s “Tanker War” or in 2019 when it seized foreign vessels. Yet this latest proposal goes beyond temporary disruptions, signaling a potential shift toward institutionalizing revenue extraction. The ambiguity of what “services” Iran claims to provide—whether security, navigation aids, or something else—leaves room for interpretation and abuse. International law, as outlined in the UN Convention on the Law of the Sea (UNCLOS), does not recognize such fees in straits used for international navigation, making Iran’s move legally contentious. This raises the question of how the global shipping industry, already grappling with rising insurance costs and rerouting risks, will adapt if the policy takes effect. The timing of this announcement is telling. With tensions in the Middle East simmering amid Israel’s war in Gaza and broader regional instability, Iran may be testing the waters—literally—for how far it can push without triggering a strong response. Should major powers like the U.S. or Gulf states fail to push back firmly, the precedent could embolden other states to impose similar charges in key maritime corridors, further fracturing the post-WWII order of free and open seas. Conversely, a decisive international response could force Iran to backtrack, at least temporarily. Either way, the episode underscores how resource-rich but isolated states are increasingly using geopolitical leverage to reshape global trade dynamics in their favor.