Politics

US Secondary Sanctions: A Timeline of Financial Weaponry

US secondary sanctions are penalties on non-US banks and firms for dealing with sanctioned countries or networks. They work because foreign banks need US dolla…

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FOUNDATION

IEEPA becomes law

The 1977 International Emergency Economic Powers Act lets the President regulate transactions after declaring a national emergency. Most sanctions orders still rest on i…

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ILSA

Foreign investors targeted

The Iran and Libya Sanctions Act threatened penalties on foreign firms investing in Iran's oil and gas. Helms-Burton had targeted foreign firms in Cuba months earlier.

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CISADA

Banks become the lever

A foreign bank serving the IRGC or designated Iranian banks could now be barred from US correspondent accounts, cutting it off from dollar clearing.

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KUNLUN

A Chinese bank cut off

Treasury cut China's Bank of Kunlun and Iraq's Elaf Islamic Bank off from the US system for serving Iranian banks. Thousands of other banks took the hint.

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JCPOA

Most Iran sanctions lifted

Under the nuclear deal, most nuclear-related secondary sanctions on Iran's oil and banks were lifted. Primary US sanctions stayed.

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CAATSA

Russia's arms buyers

It requires sanctions on anyone making significant deals with Russia's defence or intelligence sectors. China was hit in 2018.

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SNAPBACK

Iran pressure returns

Treasury restored sanctions with over 700 designations. When oil waivers ended in May 2019, India stopped buying Iranian oil.

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S-400

Turkey sanctioned

No. Turkey's defence agency was sanctioned for buying the S-400. India bought the same system and was never sanctioned.

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RUSSIA

Any bank, anywhere

From December 2023 foreign banks aiding Russia's war economy could be sanctioned. In June 2024 that covered dealings with VTB and Sberbank too.

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INDIA

A 25% secondary tariff

The US added 25% to tariffs on Indian goods because India bought Russian oil, applying sanctions logic through trade instead of banking.

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OIL

Rosneft and Lukoil blocked

Treasury blocked Russia's two biggest oil firms and warned foreign banks. Reliance said it would comply.

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DEAL

India's tariff removed

Yes. After a trade deal in which India committed to stop importing Russian oil, the extra 25% duty was removed.

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TEAPOTS

Banks warned on China's refiners

Mostly small Chinese teapot refineries. Treasury said it was ready to use secondary sanctions against banks serving them.

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OUTCAST

Operation Economic Outcast

Treasury made anyone operating in Iran's digital assets, technology, gold, aviation or shipping sectors sanctionable, then hit banks in the UAE, Turkey and Russia.

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NO NOTICE

OFAC's warning to banks

Foreign banks still dealing with Iran could be sanctioned at any time without advance notification and should end those relationships now.

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