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Iran Mandates Hormuz Transit Tolls Paid in RMB or Stablecoins, Sidestepping Dollar Channels
Iran has moved to formalize a long-rumored toll regime for the Strait of Hormuz, requiring ultralarge crude carriers to pay fees to the Islamic Revolutionary Guard Corps (IRGC) through settlement channels that exclude the U.S. dollar. Deputy Foreign Minister Gharibabadi confirmed the policy at a regular press briefing in Tehran on April 2.
Bloomberg, citing internal documents from the IRGC Navy, said the system was technically deployed by the end of March. Under the arrangement, tolls can be paid only via renminbi wire transfer or in USD-pegged stablecoins through a decentralized network. Iranian customs has set up a dedicated cryptocurrency exchange window on Qeshm Island so receipts can be rapidly converted into rials or routed to overseas accounts.
The design reflects Iran's efforts to bypass sanctions constraints embedded in traditional shipping settlement rails such as SWIFT and correspondent banking, where Iran-linked flows can trigger U.S. Treasury secondary sanctions. By pairing China's cross-border RMB payment infrastructure with public blockchains, Tehran is building a parallel settlement path outside dollar-centric monitoring.
Braemar, a London-based shipping broker, said at least two oil tankers flying lesser-known flags completed renminbi payments and transited safely by the end of March. Domestically, the mechanism gained additional legal footing after Iran's Parliament's National Security Committee passed the "Hormuz Strait Transit Management Act" on March 30.
Pricing is reported to be tiered by geopolitical alignment. Bloomberg, citing people familiar with the plan, said oil transit charges start at $0.50 per barrel and are divided into five tiers by country relationship:
- Tier 1 (ally special rate): $0.5–$0.7 per barrel for China and Russia, with a dedicated "green channel" that can allow passage based on routine reporting.
- Tier 2 (friendly partners): $0.80–$0.90 per barrel for countries such as India and Pakistan.
- Tier 3 (neutral countries): $1 per barrel for Africa, Southeast Asia, and Latin America, requiring declaration and clearance after inspection confirms no hostile assets.
- Tier 4 (high-risk countries): $1.2–$1.5 per barrel for U.S.-aligned but non-hostile countries such as Japan and South Korea, plus many EU nations, subject to full monitoring and potentially lengthy approval queues.
- Tier 5: the United States, Israel, and their allies are barred.
After payment, the IRGC is said to issue a license code and routing instructions. Vessels must fly the flag of a country that has negotiated a transit agreement with Iran and may be required to re-register under that flag. Approaching Hormuz, ships must broadcast the transit code over VHF radio, after which a patrol craft intercepts and escorts them along the coastline past a cluster of islands described by industry sources as "Iranian toll booths."
The move marks a rare attempt by a sovereign state to embed stablecoin settlement into strategic payment infrastructure at commercial scale. The Strait of Hormuz carries about 21% of global crude oil seaborne flows, with dozens of vessels transiting daily. If sustained, the arrangement could channel more than $20 billion a year in stablecoins into Iran-controlled digital wallets, creating a sovereign-protected gray liquidity pool.
Market participants are also watching spillovers into marine insurance and trade finance. The International Group of P&I Clubs has circulated an internal alert warning that payments linked to the IRGC may create sanctions-compliance exposure under EU and UK rules and could jeopardize coverage validity. Shipowners face a cost-risk tradeoff: rerouting around the Cape of Good Hope can add 15 days and tens of thousands of dollars in fuel, while paying crypto-linked tolls raises the risk of account freezes.
Some commodity traders are reportedly exploring Pakistani intermediaries. Islamabad has recently said it would allow 20 international tankers to fly the Pakistani flag, potentially offering an offshore channel compatible with the Iranian framework.
Iran is not alone in testing geography-driven tolling with alternative settlement. Russia has previously floated similar fee concepts for the Northern Sea Route and has publicly discussed accepting cryptocurrency payments.
Risks remain. Major stablecoins such as USDT and USDC are still pegged to the U.S. dollar and remain exposed to OFAC tracking. A key challenge is whether IRGC-linked entities can scale the conversion of on-chain receipts into physical assets or fiat currency (rial) while limiting enforcement exposure. Still, as long as Iran retains its geographic leverage over Hormuz, the experiment is poised to keep pressuring the established playbook for global energy trade settlement.