Iran's Crypto Tanker Tolls: Sanctions Evasion at Scale

The Strait of Hormuz crypto toll that Iran is now charging cargo ships isn't some rogue improvisation. Blockchain analysts who've been watching the Islamic Revolutionary Guard Corps operate in crypto markets for the past several years call it the obvious next step in a sanctions-evasion infrastructure that has quietly matured into a commercial-scale network — one that runs on bitcoin and dollar-pegged stablecoins, moves hundreds of millions in trade annually, and doesn't need a single cryptocurrency exchange to function.

What Is Iran's Crypto Toll at the Strait of Hormuz?

Iran is accepting bitcoin and USD-pegged stablecoins from cargo ships as a condition of safe passage through the Strait of Hormuz, confirmed by a spokesperson for Iran's Oil, Gas and Petrochemical Products Exporters' Union. The rate is Strait of Hormuz crypto toll at $1 per barrel of oil — meaning the largest tankers, which carry up to 2 million barrels, could be paying $2 million per transit in crypto.

An earlier report had suggested stablecoins were already being accepted for selective passage. The more recent confirmation of bitcoin adds texture: Tehran isn't limiting itself to one asset class. It's building optionality into its payment rails, which is exactly what a sophisticated sanctions-evading state actor would do.

The IRGC's Crypto Trade Network Is Older Than You Think

Andrew Fierman, head of national security intelligence at Chainalysis, put it plainly: the toll scheme isn't a shock. "It's highly unsurprising that this type of trade would be happening via cryptocurrency as well," he said, referring to passage through the narrow channel where roughly a fifth of the world's oil and liquefied natural gas flows each year.

The data trail goes back at least to December 2024, when U.S. authorities flagged an IRGC-affiliated financier with ties to the Iran-backed Houthi regime. That individual had Iran sanctions cryptocurrency to facilitate Iranian oil sales to Yemen, with over $178 million moving through connected crypto addresses in a single year.

Then came April 2025: a broader network of Houthi financiers, buying weapons and commodities from Russia. Their wallet addresses showed up in a sanctions designation covering nearly $1 billion in activity — again, within roughly twelve months. The IRGC stablecoin trade network wasn't just moving oil money at that point. It was running an arms procurement pipeline.

They have a network of cryptocurrency wallets that the regime is using to facilitate this cross border activity. To accept these payments in crypto would make it easier than potentially utilizing the traditional banking system and there's enough liquidity out there that they don't even need to really use cryptocurrency exchanges either.

Why Stablecoins — Not Bitcoin — Are the Real Story

Fierman draws a sharp contrast between how Iran and North Korea use crypto. Pyongyang steals it and launders the proceeds. Tehran earns it through trade. The IRGC's preferred tool, he notes, is the USD-pegged stablecoin — not bitcoin. And the logic is straightforward once you understand Iran's domestic currency situation.

Iran's official currency, the Rial, has been in near-permanent freefall. People transact daily in Tomans (one Toman equals 10 Rials), but neither currency is remotely attractive to international trading partners. Iran has been under comprehensive sanctions since 1979, including targeted restrictions on almost every domestic bank. That blocks access to U.S. dollar-denominated assets through any conventional path.

Stablecoins solve that problem cleanly. A USDT or USDC payment gives a counterpart a dollar-equivalent asset that clears without touching Western banking infrastructure. Tom Keatinge, founding director of the Centre for Finance and Security at UK defence think tank RUSI, agrees the tool has become structurally important to Tehran's trade.

The reality is that most counterparts don't want to trade in Rials or in Tomans, especially considering the hyperinflation that is regularly happening in the country. So this ability to get a US dollar-pegged asset creates a mechanism that allows them to trade globally with anyone who's willing to trade with them, in an alternative mechanism that doesn't rely on the traditional banking system.

Could Iran Actually Demand USD1 — and Corner Trump?

The most provocative take on all of this came from Lee Reiners, a lecturing fellow at Duke University's Financial Economics Center. His suggestion: if Tehran were being truly strategic, it would demand payment specifically in USD1, the stablecoin launched in March 2025 by World Liberty Financial — the Trump family-affiliated crypto venture.

"Then the President of the United States would have a financial incentive to lift sanctions and allow them to charge whatever tolls they want," Reiners said. It reads like a thought experiment. It also reads like the kind of leverage play that states under maximum pressure eventually reach for.

Keatinge flagged the obvious counterpoint — that stablecoin usage does expose Iranian actors to potential Western regulatory intervention via issuer-level blacklisting. But he added: "evidence suggests that this risk is low." Which is either reassuring or damning, depending on which side of the sanctions regime you're on.

The Houthis, meanwhile, have signaled they may impose a second chokepoint on global shipping at the Bab-al-Mandeb channel connecting the Red Sea to the Gulf of Aden. If that happens, Iran's crypto toll model has a potential franchise opportunity in a second critical strait. Call it sanctions evasion as infrastructure — because at this point, that's exactly what it is.

Whilst the use of stablecoins might open users up to Western regulatory intervention, evidence suggests that this risk is low.