Skip to content
Briefings are running a touch slower this week while we rebuild the foundations.See roadmap
Iran Conflict 2026
31MAY

Majlis approves Hormuz toll bill

2 min read
09:14UTC

A key Majlis committee approved the Hormuz toll bill, advancing legislation that would permanently ban US and Israeli vessels and require fees in Iranian rial from all other shipping. Once codified, the toll becomes reversible only through domestic political process ; no future ceasefire can unwind it.

ConflictDeveloping
Key takeaway

Committee approval advances legislation that would make Hormuz's contested status a matter of Iranian domestic law, not merely military posture.

The Majlis committee approved the Hormuz toll legislation on 1 April, advancing a bill that permanently bans US and Israeli vessels from the strait and requires fees in Iranian rial from all other shipping. The bill had been drafted in parliament on Day 25, moved to committee stage on Day 32, and has now cleared committee. Full parliamentary vote, Guardian Council review, and presidential signature remain.

There is a fundamental difference between the IRGC imposing a toll because it controls a strait and the Iranian parliament enacting a law that makes the toll a statutory requirement. The first is a military fact reversible by military defeat. The second is a legal instrument reversible only by domestic political process. Iran had already demanded Hormuz sovereignty as a formal peace condition ; the legislation converts that negotiating demand into permanent law.

The bill bans US and Israeli vessels explicitly and requires fees in Iranian rial, forcing buyers to transact in a sanctioned currency. The NPT withdrawal bill is advancing on the same legislative track . Both bills are designed to survive any ceasefire: a ceasefire can stop the shooting, but it cannot repeal domestic Iranian legislation.

The IRGC's toll system had already been operating since around Day 12, with Chinese state ships paying and crossing . Codifying the practice into permanent law removes any ambiguity about whether a future Iranian government could unilaterally rescind it. If Trump withdraws in two to three weeks without securing this bill's reversal, the US leaves behind a legal architecture that makes Hormuz permanently contested.

Deep Analysis

In plain English

The Iranian parliament is voting on a law that would permanently charge ships money to use the Strait of Hormuz ; a narrow channel through which about one in five barrels of the world's oil passes. Right now, Iran is blocking the strait militarily during the war. This law would make that blockade permanent and legal under Iranian law, even after the war ends. American and Israeli ships would be banned outright. This matters because there is a big difference between Iran blocking the strait with soldiers, which can be reversed, and Iran blocking it with a law, which can only be reversed by Iran itself choosing to change the law.

Deep Analysis
Root Causes

The toll bill was drafted as a direct response to US and Israeli strikes on Iranian infrastructure . It converts an emergency military response into a permanent economic instrument, institutionalising the leverage Iran discovered it holds over global energy markets.

What could happen next?
  • Precedent

    First instance of a state attempting to codify transit fees for an international strait into domestic law, potentially triggering a global UNCLOS legal challenge.

    Long term · Assessed
  • Consequence

    A ceasefire that leaves the Hormuz toll law in place fails to address the economic cause of the oil price spike.

    Medium term · Assessed
  • Risk

    Guardian Council and presidential signature stages create multiple veto points, but each ratification stage makes repeal politically harder.

    Short term · Reported
First Reported In

Update #54 · Trump declares victory and withdrawal

Washington Post· 1 Apr 2026
Read original
Different Perspectives
Iran human rights monitors (Amnesty International, Iran HRM, Hengaw)
Iran human rights monitors (Amnesty International, Iran HRM, Hengaw)
Monitors documented 30 women held on capital moharebeh charges in a basement prison ward, Benyamin Naqdi's death sentence with a forced-confession broadcast, and 39 political executions since February. Iran's security courts have processed protest cases at uninterrupted wartime tempo regardless of the diplomatic track.
Lloyd's of London (war-risk underwriters)
Lloyd's of London (war-risk underwriters)
Lloyd's held its Hormuz war-risk designation at $10-14 million per voyage while Brent fell 19%, maintaining a structural divergence from futures pricing. Underwriters require a UN Security Council resolution or government certification letter, not diplomatic optimism, before de-listing the strait.
Oman (Sultan Haitham's government)
Oman (Sultan Haitham's government)
Muscat issued a mine alert in its own territorial waters while denying any Hormuz toll plan after US Treasury threatened sanctions. A suspected mine in Omani waters on the same weekend as US financial pressure forces Muscat to demonstrate sovereignty without appearing to choose sides.
China (PRC)
China (PRC)
Beijing sent scholars rather than its defence minister to Shangri-La for the second year running and addressed Taiwan and multilateralism without mentioning Iran. China maintains its bilateral energy corridor protection with Tehran while refusing the diplomatic exposure of a public position at multilateral forums.
Iran Supreme National Security Council
Iran Supreme National Security Council
The SNSC framed the unsigned MOU as a 10-point Iranian victory with enrichment already recognised, and the foreign ministry rejected Trump's nuclear conditions within hours. Tehran treats each unsigned day as validation that Iran has retained its stockpile without surrendering it.
Trump administration (CENTCOM/White House)
Trump administration (CENTCOM/White House)
Trump posted three non-negotiable public conditions while CENTCOM disabled a commercial ship and Hegseth threatened resumed strikes from Singapore. The administration treats the unsigned MOU as leverage to extract maximum Iranian concessions before any ceasefire instrument is committed to paper.