US Justice Department seeks to drop criminal case against Turkiye Halk Bankasi

The US Department of Justice filed a motion on June 11 to dismiss the criminal case against Turkiye Halk Bankasi, the Turkish state-owned bank that was indicted in 2019 for allegedly laundering roughly $20 billion in Iranian oil and gas proceeds. The move effectively closes one of the most high-profile sanctions enforcement cases in recent memory, and it does so with a whimper rather than a bang.

Halkbank walks away without paying criminal fines. It didn’t admit guilt. It agreed to accept an independent compliance monitor. That’s it. For a case that once tested the limits of foreign sovereign immunity all the way to the Supreme Court, the resolution is remarkably gentle.

How a $20 billion case ended with no fines

The DOJ told US District Judge Richard M. Berman in Manhattan that Halkbank had satisfied all conditions of a deferred prosecution agreement reached in March 2026. Under that DPA, the bank agreed to let an independent monitor oversee its anti-money laundering and sanctions compliance programs. In exchange, prosecutors agreed to seek dismissal of the charges.

The original October 2019 indictment painted a sprawling picture. Prosecutors alleged Halkbank had conspired to funnel Iranian oil revenues through a network of front companies and money services businesses, effectively helping Iran circumvent US sanctions to the tune of approximately $20 billion.

The case had serious legal drama along the way. Halkbank argued it couldn’t be prosecuted at all because it was an arm of the Turkish government, invoking the Foreign Sovereign Immunities Act. That argument traveled all the way to the Supreme Court, which ruled in 2023 that the act does not shield foreign entities from criminal prosecution. The bank lost that fight but, as it turns out, won the war.

Halkbank’s shares jumped 10% when the DPA was announced in March 2026.

The geopolitical backdrop

Turkey is a NATO member. Halkbank is state-owned. Prosecuting it was always going to carry diplomatic weight far beyond the courtroom. The original indictment came during a period of heightened US-Turkey tensions, and the resolution arrives at a moment when both countries have reasons to smooth over friction points.

What this means for investors and the Turkish banking sector

For anyone with exposure to Turkish financial assets, the dismissal motion removes a significant overhang. The Halkbank case had been a persistent source of uncertainty for the broader Turkish banking sector, not just for the bank itself. The 10% share price surge in March already priced in much of the relief, but the formal dismissal motion provides the kind of legal finality that institutional investors care about.

That said, the independent monitor is not nothing. Monitors typically have broad authority to review internal controls, flag deficiencies, and recommend changes. For Halkbank, this means ongoing scrutiny of its sanctions and AML programs, which could constrain certain business activities or require costly compliance upgrades.

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