Correspondent bank due diligence: the capital that moved next door

Two banks stood side by side in Iraq. One of them was Bank Melli, an Iranian bank under US sanctions. It closed, and its capital went next door.

That is how the US Treasury describes it in its release of 15 October 2026 designating the International Development Bank for Investment and Finance, an Iraqi bank it calls IDB. In Treasury's words, Bank Melli, "which was located next to IDB in Iraq, closed due to U.S. sanctions and transferred its capital to IDB."

What Treasury says happened

The release sets out four facts about the bank. IDB "was initially established by Iranian companies to support the Iranian economy and supply Iran with U.S. dollars." It took in a sanctioned bank's capital. It "uses Iranian capital to conduct business, then collects any profit made and sends it back to Iran in the form of U.S. dollars each month." And it "has abused its access to the now-dissolved U.S. dollar wire auction."

Then the ownership. "The bank's current leadership received ownership of IDB from a dual-Iranian Iraqi financier" who, Treasury says, works for the Islamic Revolutionary Guard Corps-Qods Force. The same financier "continues to use his familial relationships to exert influence over the bank."

Treasury designated IDB under Executive Order 13902, for operating in the financial sector of the Iranian economy.

Two stories about the same bank

A file on a bank usually starts with the ownership story: who holds the shares, who sits on the board, who controls the licence. In IDB's case that story had already been rewritten once, when ownership passed from the financier to the current leadership.

The money story asks something else. Where did the capital come from, where does the profit go, and who gains from either? In Treasury's account it is the money story that carries the exposure: capital transferred in from a designated bank, and profit sent out to Iran every month.

An ownership record can be accurate and still answer the smaller question. A register can show who owns a bank today. It does not show where the bank's capital arrived from, or where its earnings leave to.

What a file on a bank should be able to answer

None of this needs a sanctions list to ask. It needs the file to treat the money as a subject in its own right.

1. Where did the institution's capital come from, and when? A capital injection from another bank, above all one that has just closed, is a fact to explain, not a line to skip.
2. Where do the profits go? Dividends, remittances and transfers to related parties show who the institution works for.
3. Who held the shares before the current owners, and how did they pass? A transfer of ownership closes nothing if the earlier holder keeps influence.
4. Whose influence sits outside the register? Family ties, management agreements and side arrangements do not appear in a shareholder list.

A clean result on the current owners answers the third question, in part. It says nothing about the other three.

Our Enhanced Due Diligence specimen shows how a report records who a company deals with, who has influence over it, and what it could not establish. It is emailed on request: avihumarom.com/specimen/enhanced-due-diligence

What this means for a clean result

The lesson is narrower than "registers do not work". Treasury's release is the record of an investigation with access no private file has. What a private file can do is say which questions it answered and which it could not, so that a reader knows whether "clean" meant the money was traced or only the owners were named.

An ownership story can hold while the money story does not. A file that tells the two apart is the one that survives being read again later.

Source: US Department of the Treasury, "Operation Economic Outcast Targets Iran's International Financial Networks and Shadow Banking Architecture", press release sb0660, 15 October 2026, https://home.treasury.gov/news/press-releases/sb0660

Enhanced Due Diligence, USD 2,500 per subject, three to five business days: avihumarom.com/products/enhanced-due-diligence

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