The United States Treasury has stated, in language carried in the public reporting on the Hormuz situation this week, that any payment made to the Iranian government or to the Iranian Revolutionary Guard Corps for safe passage through the Strait of Hormuz, whether direct or indirect, is not authorised for United States persons, including United States financial institutions. The statement is a single sentence in a press posture that has been building for several weeks. Read at desk level, it changes the operational reality of the current Hormuz toll arrangement on the dollar side in a fairly specific way.
This post tries to walk through what the rule means for the people who would actually be paying or processing such a payment, and why the four-leg toll architecture the site has been documenting is now closed from the United States compliance side.
What the rule actually says
Treasury’s position is built on existing authorities, not on a new statute. The United States already prohibits transactions by United States persons with the Iranian Revolutionary Guard Corps under Executive Order 13224 and a series of subsequent designations. The Iranian government as a whole has been subject to comprehensive United States sanctions for years. What is new is the explicit application of those existing prohibitions to the specific channel of paying for chokepoint passage.
The “directly or indirectly” language is the operative phrase. It means the rule does not stop at a wire transfer with the IRGC named as the beneficiary. It extends to a payment made through an Iranian-state-approved intermediary, a payment routed through a third-country shell that ultimately settles to an Iranian-government account, a stablecoin transfer that lands in a wallet cluster previously attributed to Iranian transit-fee receipts, and a yuan settlement whose proceeds are eventually transferred onward to the Iranian state. If the destination of the value is the Iranian government or the IRGC, the rule treats the upstream United States touchpoint as a sanctions exposure.
Who is affected, at desk level
The first group affected is United States-flag tanker owners. There are not many in the global crude trade, but those that exist now have a clearer position than they did a week ago. They cannot pay the current Hormuz toll without sanctions exposure, and they cannot route the payment through a charterer or an agent without inheriting the same exposure. Their realistic position is to decline transit, to park, or to find a non-Hormuz route. None of those options is cheap.
The second group is United States-listed shipowners with non-United-States-flag vessels. They are subject to the same restriction as a function of the United States compliance reach over their banking, audit, and equity counterparties. A Liberia-flag VLCC on an Atlantic Trading-controlled balance sheet still has to pay any transit fee through banking channels its corporate parent is responsible to.
The third group is the chartering desk. A United States charterer hiring a non-United-States-flag vessel for a Hormuz route now has to instruct the vessel and the operator that no transit fee may be paid to Iran or the IRGC, directly or indirectly, with the resulting routing or canceling decisions falling back on the chartering desk. Insurance documentation already requires this kind of declaration in war-risk wordings. The Treasury position makes the documentation requirement a legal standard.
The fourth group is the correspondent bank. A non-United-States bank routing a payment in dollars through a United States correspondent now has to satisfy itself that the payment is not headed, directly or indirectly, to an Iranian government beneficiary. Where the chain is opaque, the prudent course is to decline the wire. The dollar settlement system, by virtue of its structure, exports the United States compliance position to all banks that touch it.
The fifth group is the buyer of the cargo at the destination port. The Hengli sanction the site analysed on 25 April already named one major Chinese refinery and the Iranian oil-sales arm Sepehr Energy Jahan Nama Pars Company at entity level. The Treasury “no payments” position is the upstream compliance scaffolding under which sanctions on additional buyers can be issued at any time.
What this leaves of the dollar side
If you collect these groups together, the dollar-denominated payer set for the current Hormuz toll arrangement is effectively zero. The payment cannot lawfully originate from a United States person. It cannot lawfully clear through a United States correspondent. It cannot lawfully sit on a balance sheet audited under United States standards. The payment can still be made; it cannot be made through dollars without the payer accepting sanctions exposure as a material business risk.
The remaining payment channels are the ones the 25 April analysis of the Tether freeze walked through: stablecoin settlement on Tron or Ethereum, Bitcoin transfers, and yuan settlement through Chinese banking channels. Each of those channels has its own structural constraints. USDT carries the smart-contract freeze risk that the 24 April action made visible. Bitcoin carries volatility and liquidity constraints inappropriate to the dollar-denominated bulk Hormuz transit traffic generates. Yuan settlement requires Chinese banking participation that Beijing has not extended publicly to a transit-fee programme.
The four legs, now
The Hengli analysis set out four structural legs of any chokepoint toll regime: the vessel that pays at the point of transit, the payment channel through which the fee moves, the treasury that holds the funds, and the buyer at the destination port whose payment ultimately funds the chain. The 24 April Tether freeze named entity-level pressure on the payment-channel and treasury legs. The 25 April Hengli action named the buyer leg. The Treasury “no payments” position now makes the vessel-and-payer leg explicit.
This does not end the Iranian government’s transit-fee collection. Tehran retains operational control over the strait and has political reasons to continue the arrangement. What it does is finalise the United States compliance map of the four legs. Every payer-side actor with any exposure to United States banking, audit, securities, or sanctions reach now has to plan around the rule.
How a treaty-backed authority handles this
The Suez Canal Authority’s tariff is paid in dollars. The payment clears through correspondent banking, deposits at named Egyptian institutions, and is reported in monthly statistical bulletins. There is no ambiguity about who can lawfully pay. The Panama Canal Authority’s tariff is paid through Citibank and a small named set of partners, deposited at the National Bank of Panama and at the Federal Reserve. Same answer. The comparison page sets out both receivables structures.
The thesis of this site is that the Hormuz transit fee should be paid the same way. The four-to-six hundred thousand US dollar fee priced by the rate schedule is denominated in dollars on the assumption that the receiving authority is treaty-backed and recognised by the United States, the European Union, China, India, Japan, Korea, and the Gulf states. Under that assumption, no Treasury “no payments” rule applies, because the authority is institutionally legitimate and the payment is to an institution rather than to a sanctioned counterparty. The whole question of whether a United States bank can touch the wire goes away.
The Treasury position this week is, in that frame, not a problem for the future framework the site has been arguing for. It is a problem for the current arrangement only. The dollar payer set for the current arrangement is now closed. The dollar payer set for a treaty-backed authority would be the same payer set that pays Suez and Panama every day without anyone thinking about it.
Sources: United States Department of the Treasury Office of Foreign Assets Control public posture on Iran transit-fee payments, April 2026; Executive Order 13224 and subsequent Iran-related designations; this site’s 25 April analyses of the Hengli sanction and the Tether freeze; this site’s 24 April analysis of the UNCLOS treaty vacuum at Hormuz; Suez Canal Authority and Panama Canal Authority published receivables practice; this site’s proposed rate schedule and comparison page.