
TLDR
Donald Trump declared a 20% transit toll on all Strait of Hormuz shipping on 13 July 2026, styling the US as 'THE GUARDIAN OF THE HORMUZ STRAIT', then withdrew it within 24 hours after Iranian projectiles struck two ADNOC tankers and killed a seafarer. International law was against the toll from the moment it was posted: UNCLOS Article 38 explicitly guarantees unimpeded, toll-free transit passage through international straits, a position the IMO Council immediately reaffirmed. The toll's collapse changes almost nothing on the water. The strait remains effectively closed to rational commercial actors, a US naval blockade of Iranian ports is back in force, and oil prices stay elevated. The underlying question the decree named, who controls the world's most critical energy chokepoint, will outlast every policy move made so far.
KEY TAKEAWAYS
Twenty-four hours from decree to retreat
Trump posted it at 11:14 pm on 13 July 2026. According to his Truth Social post, the United States would henceforth be known as "THE GUARDIAN OF THE HORMUZ STRAIT" and would collect a 20% reimbursement fee on all cargo shipped through it.verifiedVerified Source: trumpstruth.org[1] No treaty. No congressional authorisation. A Truth Social post and a capital-letters declaration of maritime sovereignty over a 33-mile chokepoint that belongs, under international law, to no single state.
The retreat came faster than the policy. By 14 July, Trump had posted again: the 20% fee was out, replaced by a promise of trade and investment deals that various Gulf states would make into the United States.[2] No mechanism. No timeline. The same breezy confidence, pointed in the opposite direction.
What happened between those two posts matters more than either of them.
Iran answered the toll with missiles, not lawyers
Iran's Khatam al-Anbia Central Headquarters did not wait for legal briefs. On 13 July, the same day Trump's post went up, the spokesperson said: "Following our previous warnings, we will under no circumstances allow the US to interfere in the management of the Strait of Hormuz."verifiedVerified Source: tasnimnews.ir[4] The headquarters also warned that Iran's armed forces would respond forcefully to any attempt to obstruct or create insecurity for the passage of commercial ships outside routes it had designated.[4]
The kinetic reply arrived within hours. ADNOC Logistics and Services confirmed that on 14 July 2026 crude oil tankers Al Bahyah and Mombasa B were struck by projectiles while transiting the strait, resulting in one seafarer's death and several injuries.[3] These were Gulf state-owned vessels carrying Gulf state oil, struck under a US decree that was supposed to be protecting them.
The toll collapsed. The tankers did not come back.
What international law actually says
The legal problem with Trump's decree was not subtle. Part III of the United Nations Convention on the Law of the Sea is unambiguous: under Article 38, all ships and aircraft enjoy the right of transit passage through straits used for international navigation, and that passage shall not be impeded.[5] Transit passage is not conditional on payment. It is not conditional on the goodwill of any self-appointed guardian. It is a codified right that predates the Trump administration by four decades.
The IMO Council said it plainly. "The Council stressed that any arrangement between the littoral States of the region shall guarantee the non-discriminatory and unimpeded right of transit passage of all ships. The Council reaffirmed that passage through the Strait should remain free of any tolls and charges, in accordance with international law, including the IMO Convention."verifiedVerified Source: imo.org[7]
Worth noting: the US was not a party proposing a negotiated arrangement between littoral states. It was a non-littoral power announcing a fee by social media post. The legal gap between those two things is not a technicality.
How insurers and shippers actually read it
The Lloyd's Market Association had already told the market in March 2026 what was suppressing vessel traffic through Hormuz. Marine war insurance cover remained available for transits, the association said. The real problem was something else: risk to crew and vessel safety, rather than any lack of insurance, was keeping ships away.[6]
Lloyd's List Intelligence data cited by the association recorded just 111 total transits through Hormuz from the start of March 2026, comprising 78 eastbound and 33 westbound vessels.[6] Against a pre-crisis baseline of roughly 20% of global seaborne oil moving through the strait daily, those numbers represent a near-collapse of commercial throughput.
A 20% toll did nothing to address the variable suppressing traffic. Shippers were not staying away because of a fee they had not yet heard of. They were staying away because Iranian projectiles were striking vessels in real time. The toll landed as the very thing it claimed to resolve was playing out on the water.
What the retreat left behind
Trump's replacement offer, trade and investment deals with Gulf states, does not reopen a strait. It does not demobilise the US naval blockade of Iranian ports, first imposed in April, paused in June and resumed on 14 July. It does not remove the mines that US Central Command has been conducting clearing operations against. It does not rescind Iran's own declared route restrictions or its armed forces' said mandate to enforce them.
The physical reality of the strait remains unchanged: a 33-mile-wide chokepoint through which the global economy used to move roughly one-fifth of its seaborne oil every day, now effectively closed to rational commercial actors by a combination of US military presence, Iranian countermeasures, and the mathematics of risk pricing that Lloyd's Market Association described four months before the toll was ever posted.
Oil prices reflect that reality. The blockade reflects that reality. The death of a seafarer aboard Al Bahyah or Mombasa B reflects that reality. The decree that lasted 24 hours reflected only the instinct to name what was already true and call it policy.
No good options for reopening
The toll was a symptom of a deeper strategic incoherence. The US positioned itself as the strait's guarantor without the legal basis to charge for that guarantee, without the consent of littoral states, and without an enforcement mechanism that would not escalate to exactly the kind of kinetic exchange that killed a crew member within hours of the post going live.
Iran's position is structurally coherent, even if it is brutal: the strait is adjacent to its territorial waters, UNCLOS Part III gives it a role in designating sea lanes and traffic separation schemes, and Iran has demonstrated repeatedly that it will enforce its declared terms with hardware rather than communiqués. That is not a negotiating posture. It is a standing capability.
The IMO Council's reaffirmation of unimpeded transit passage under international law is the correct legal position. It is also, at the moment, a statement about a world that does not currently exist in the Strait of Hormuz. Getting from the law as written to the strait as functioning requires something none of the actors have offered: a durable, enforceable arrangement between the littoral states and the major naval powers that does not depend on a single overnight Truth Social post to hold together.
The toll is gone. The problem it named, who actually controls the chokepoint through which 20% of global seaborne oil moves, remains as unresolved on 15 July 2026 as it was on the 12th.
SOURCES & CITATIONS
- Trump Truth Social post, Hormuz toll declaration, 13 July 2026
- Trump Truth Social post, toll withdrawal, 14 July 2026
- ADNOC Logistics & Services, update on attacks on Al Bahyah and Mombasa B
- Khatam al-Anbia Central Headquarters warning, Tasnim News Agency, 13 July 2026
- UNCLOS Part III, Transit Passage, Article 38
- Lloyd's Market Association, safety concerns driving reduced Hormuz traffic, March 2026
- IMO Council reaffirms commitment to protecting vital shipping lanes
FREQUENTLY ASKED QUESTIONS
What was Trump's Hormuz toll?
Is a transit toll on the Strait of Hormuz legal?
Why did the toll collapse so quickly?
Is insurance available for Hormuz transits?
Is the Strait of Hormuz still closed after the toll was dropped?

Caleb Reed covers breaking news and sport for Bushletter. Fast and verb-led, he writes with a news-wire cadence and no patience for PR spin.



