US Treasury proposes cutting Banque Misr from dollar system over alleged $1.8B Iran shadow banking links

On Friday, the U.S. Treasury proposed a rule that would cut a foreign operation of Egypt's second-largest bank off from the U.S. dollar system. Between January 2024 and June 2026, Treasury estimates that the targeted Banque Misr operation processed approximately $1.8 billion for 103 companies it identifies as potentially part of Iranian shadow banking networks. The public comment period on the proposed rule runs 30 days from its publication in the Federal Register, which had not appeared as of Sunday.

First Bank-Facing Action Under Operation Economic Outcast

This marks the first bank-facing action of Operation Economic Outcast, the sanctions campaign Treasury Secretary Scott Bessent announced on August 24 with D-Day language and a promise to "sever every economic lifeline" sustaining Tehran. The instrument is a notice of proposed rulemaking, layered on top of designations Treasury already issued on the day of the launch.

The target list reveals the strategy more clearly than the rhetoric. Key elements include:

• China, which Bessent noted has historically purchased around 90% of Iran's oil, has so far faced rhetoric and diplomacy. The president is making phone calls to world leaders with specific requests to sever dealings with Tehran.
• An Egyptian state bank received a proposed rule.

Three Key Design Choices

Three design choices underpin the announcement and carry more significance than the launch's volume:

1. The remedy window: Every country receives what Bessent called an opportunity to remedy bad behavior before secondary sanctions arrive, with officials describing a defined timeline per country.

1. The ordered queue: The first designations target the most replaceable nodes in the network—a branch manager in Dubai, a front company in Hong Kong, a correspondent account in a mid-tier financial center—rather than the largest buyers of Iranian crude.

1. The toll counter-price: New guidance makes even engagement with Iran's Strait of Hormuz toll collectors a sanctions risk, placing a dollar price on the strait's new permission economy.

D-Day Rhetoric, Incremental Law

The legal content of the operation is more conventional than its branding. The Office of Foreign Assets Control (OFAC):

• Suspended five general licenses covering personal remittances, academic exchanges, conferences, and sports, with a wind-down period ending September 8
• Designated nearly 60 entities, individuals, and vessels
• Added five sectors of the Iranian economy—digital assets, technology, gold, aviation, and shipping—to the list where secondary sanctions can apply

Davis Polk's client note describes the package as "continuing bombardment rather than storming the beaches," built from existing authorities. Alan Eyre, a former U.S. diplomat who negotiated on Iran's nuclear file, told NPR the United States has already targeted "the low-hanging fruit, the mid-hanging fruit, the high-hanging fruit, the tree."

Targeting Compliance, Not Just Iran

Both readings—apocalyptic and exhausted—measure the same variable: what more America can do to Iran. By Tehran's own account, little remains to sever. Iran's central bank says oil exports have stopped. Official inflation is near 90%, the rial has passed 2 million to the dollar, and the IMF has this year estimated a contraction of approximately 5 to 6 percent, according to Anadolu's explainer and the Fund's later wartime update.

A siege of an economy already this severed is aimed elsewhere—specifically at the compliance departments of every bank, insurer, and treasury ministry that still touches Iranian money. Treasury, State, and Department of War teams are meeting foreign counterparts with demands for immediate action and per-country deadlines, as Davis Polk records. Bessent described the announcement as a warning shot that would be followed by quiet diplomacy, according to Sullivan & Cromwell's memo.