Sanctions Evasion Reference

Blocking

Freezing property and interests in property of a designated person that come within a jurisdiction, so it cannot be transferred, paid, withdrawn or otherwise dealt in.

also known as

freezing

reviewed

2026-08-20

Blocking is the operative effect of most designations. The property is not confiscated; title does not change. It is immobilised, and the institution holding it must report it and place it in a blocked account. Dealing in blocked property without a licence is itself a violation.

Blocking travels. If a designated person’s funds pass through a correspondent account in a blocking jurisdiction, the intermediary bank is required to block them mid-payment, which is why so much evasion activity is directed at keeping payments out of the correspondent chains where that would happen.

Where this term is used

Related terms

  • Asset freeze — The prohibition on dealing with funds or economic resources owned, held or controlled by a designated person, and on making funds available to them.
  • Blocked property — Property in which a designated person has an interest, which has come within the jurisdiction and must be frozen, reported and held in a blocked account.
  • Correspondent banking — An arrangement in which one bank holds an account for another and provides payment and other services on its behalf, usually to give it access to a foreign currency.
  • General licence — A published authorisation permitting a defined category of otherwise prohibited transactions, available to anyone who meets its terms without applying.

Sources

  1. Frequently Asked Questions. U.S. Department of the Treasury, Office of Foreign Assets Control, 2026.

All glossary terms