Author: Xiaobing, Deep Tide TechFlow
On April 8, the Financial Times published a report: Iran is demanding that oil tankers passing through the Strait of Hormuz pay tolls in Bitcoin.
The source was Hamid Hosseini, spokesperson for the Iran Oil, Gas and Petrochemical Products Exporters Union. He told the FT that tankers must first email their cargo information, Iran would then assess it and quote a price of $1 per barrel of crude oil. A fully loaded VLCC (Very Large Crude Carrier) carries 2 million barrels, making the toll $2 million.
Payment method: Bitcoin. Hosseini's reasoning was that "payment is completed within seconds, ensuring it cannot be tracked or confiscated due to sanctions."
The consequences of not paying are clear. According to the FT report, a VHF radio broadcast within the strait warned: "Any vessel attempting to pass without permission will be destroyed."
A comprehensively sanctioned nation has set up a Bitcoin toll booth on the world's most important oil shipping lane.
How the Toll Booth Was Built
In late February 2026, a US-Israel joint strike hit Iran, and Iran responded by closing the Strait of Hormuz. Data from S&P Global showed a 97% plunge in tanker traffic through the strait.
Consider the strait's significance: Before the war, 100 to 120 merchant ships passed through daily, carrying about one-fifth of the world's crude oil. Closing it sent oil prices soaring and shook the global economy.
But as the closure continued, Iran realized that "collecting" was better than "closing".
Starting from mid-March, Iran's Revolutionary Guard Corps (IRGC) had already been operating an informal transit fee system. Shipowners needed to submit detailed information to an IRGC-linked intermediary: vessel ownership records, flag registration, cargo manifests, destination port, crew lists, even AIS tracking data. After approval, the IRGC would issue a one-time password permit code and routing instructions, guiding vessels to pass along the northern side of the Iranian coastline, escorted by patrol boats.
On March 30-31, the Iranian parliament formally passed the "Hormuz Strait Management Plan," codifying this system into law. Fees were priced in rials, but the use of "digital currency" for payment was authorized.
By the time the US-Iran reached a two-week ceasefire agreement on April 7, this system had been operational for at least three weeks.
Hours after the ceasefire was declared, Hosseini revealed the latest details in the FT interview: The transit fee must be paid in Bitcoin. His stated reason was "to ensure it cannot be tracked or confiscated due to sanctions."
BTC or USDT: A Choice About Sovereignty
Hosseini's statement had two technical flaws. Bitcoin transaction confirmations take minutes, not "seconds." Every Bitcoin transaction on-chain is publicly visible and traceable; companies like Chainalysis and TRM Labs make their living tracking Iranian on-chain funds. OFAC sanctioned Iranian wallets as early as 2018.
But he was right about one thing: Bitcoin settlement doesn't go through the US correspondent banking system, so OFAC cannot freeze it at the moment the transaction occurs. Post-hoc tracing is one thing; real-time interception is another. For a $2 million transit fee, "post-hoc" is already too late.
A TRM Labs report provides fuller context. Over the past few years, the IRGC has more commonly used stablecoins like USDT in its daily operations. Just two exchanges, Zedcex and Zedxion, which were sanctioned by OFAC in January 2026, processed around $1 billion in IRGC-linked funds. Chainalysis's "2026 Crypto Crime Report" showed that in Q4 2025, IRGC-linked addresses accounted for over half of all crypto inflows into Iran, exceeding $3 billion.
The problem is, stablecoins have a backdoor.
Both Tether and Circle can freeze addresses. In mid-2025, Tether executed its largest-ever freeze of Iran-linked funds.
This is the logic behind the Hormuz toll booth's choice of Bitcoin. Using USDT for daily trade settlement is fine—small amounts, high frequency, fast speed. But for a single $2 million toll, using a tool whose issuer can press a button to freeze it at any time is something the Iranians won't accept.
Bitcoin has no administrator, no freeze button. The slogan crypto geeks have chanted for fifteen years has become a real national need for a country in the Strait of Hormuz.
A previous Bloomberg report also mentioned a third payment option: Chinese Yuan, processed through Kunlun Bank using the CIPS system, bypassing SWIFT. Effectively, Iran offers shipowners a menu: use Yuan if you have good relations with China, use Bitcoin if you want something universal.
Iran also created a five-tier country classification system, with lower rates for "friendly" nations, and outright refusal for vessels linked to the US or Israel. Some operators have already re-registered their ships under the Pakistani flag to gain transit eligibility.
$800 Million per Month, Rivaling the Suez Canal
TRM Labs estimates: If traffic returns to normal levels, oil tankers alone could generate $20 million in daily revenue, amounting to $600 to $800 million monthly. Adding LNG carriers and other cargo ships, it exceeds $800 million.
For reference: The Suez Canal's monthly revenue was around this level during peak years.
Iranian officials themselves reference Suez. In 1956, Nasser nationalized the Suez Canal, and Egypt has collected revenue from this waterway for seventy years, with peak annual revenue reaching $9.4 billion. When defending the "Hormuz Strait Management Plan," the Iranian parliament explicitly cited the Suez precedent and also mentioned Denmark's historical tolls on the Sound Strait.
The core logic is the same: A country in a critical location monetizing its geography.
But the differences are significant. Egypt's sovereignty over the Suez Canal has a basis in international law; the canal is man-made and is Egyptian territory. Hormuz is a natural strait, classified under international law as a "strait used for international navigation." According to UNCLOS regulations, coastal states cannot charge fees from vessels in transit.
Iran's response: We didn't sign UNCLOS.
A Foreign Policy analysis article on April 7th was direct: If Iran can turn wartime temporary tolls into a permanent peacetime institution, it would be the biggest economic-geopolitical event in the Middle East since Nasser nationalized Suez.
What Did the Market Read?
After the ceasefire news broke, Bitcoin rose from around $68,000 to over $72,000. Following the FT report on the Bitcoin toll booth, it surged again to $73,000.
The market is pricing in two things.
One old thing: Bitcoin as a safe-haven asset. Since the US-Iran war began, Bitcoin has outperformed physical gold, and the "digital gold" narrative, quiet for a while, has resurfaced.
One new thing: Bitcoin as an international settlement tool. A sovereign nation is collecting money in Bitcoin on the world's largest energy chokepoint. This isn't a scenario from the whitepaper; it's a nation backed into a corner discovering that, outside the dollar system, Bitcoin is one of the few channels left to actually receive payments.
The crypto world debated for fifteen years "what is Bitcoin actually good for?" Hormuz provided an answer no one expected: When two nations are at war, sanctions are fully activated, SWIFT is cut off, and stablecoins are frozen, Bitcoin is the last payment channel still open.
This use case is real, but it's also ugly.
Trump, in an ABC interview on April 8th, called the US-Iran joint toll booth a "beautiful thing" and said he wanted to create a "joint venture." The White House spokesperson quickly clarified that the ceasefire前提 was the "immediate, complete, and safe opening of the strait, without tolls." The two statements conflict.
More微妙的是 Trump's own position. His family project, World Liberty Financial, launched the dollar stablecoin USD1, and is partnering with Aster DEX to launch a crude oil futures contract settled in USD1. And a previous Bloomberg report mentioned that Iran's accepted payment methods included dollar stablecoins, listing both USDT and USDC. Trump family's stablecoin business and Iran's sanctions evasion needs intersect微妙ly on the word "stablecoin."
After the Toll Booth
An analysis by FXStreet pointed out a subsequent risk: If the model of military coercion + crypto payments proves successful in Hormuz, imitators could emerge in the Strait of Malacca, the Bosphorus Strait, and elsewhere. The norm of free passage maintained by the US Navy for 80 years isn't automatically enforced just because it's written on paper. And cryptocurrency恰好 provides the technical possibility for "tolls" to bypass financial sanctions.
In the 1956 Suez Crisis, Nasser won not because the Egyptian army defeated the British and French forces, but because the US refused to support the invasion. The fait accompli was thus established. 70 years later in Hormuz, it's similarly a question of political will: What price is the US willing to pay to reopen the strait?
Currently, the answer isn't optimistic. The ceasefire hadn't lasted 24 hours before Israel launched airstrikes in Lebanon, prompting Iran to once again halt strait transit. Maersk said it was still "urgently confirming the terms" and dared not send ships. A shipping company executive told CNBC bluntly: "We have not received any information on how to pass safely."
The ceasefire might not last two weeks. But Iran has already proven one thing: A nation kicked out of SWIFT, its dollar assets frozen, all traditional financial channels severed, has used Bitcoin and stablecoins to build a toll system on the world's most important maritime chokepoint, with potential monthly revenue of $800 million, and people have already paid.
The cryptocurrency industry spent fifteen years proving the value of "decentralized payments." In the end, the most powerful proof was provided not by Silicon Valley startups or Wall Street institutions, but by the Iranian Revolutionary Guard Corps in the Persian Gulf.
This probably wasn't the scenario Satoshi Nakamoto envisioned when writing the whitepaper, but this is the reality of 2026: Technology doesn't choose its users.
