What Is a Sanction-Restricted Transaction
A sanction-restricted transaction is a payment that has been blocked because one of its parties (sender, recipient, bank, or country) is subject to international or national sanctions. Banks and payment systems are required to screen every transaction against sanctions lists โ violating this requirement can result in multi-million dollar fines.
Why It Happens
Listing on a sanctions list. OFAC (USA), the UK's Office of Financial Sanctions Implementation, the EU, and other regulators maintain lists of individuals, companies, and entire economic sectors with whom business dealings are prohibited.
Country of the transaction. Payments to Iran, North Korea, Syria, Cuba, and several other countries are automatically blocked by most Western banks regardless of who the specific recipient is.
Correspondent bank. If a bank on a sanctions list appears in the transfer chain, the payment will be held or returned even if the sender and recipient are clean.
Name matching. Automated screening systems sometimes produce false positives if the sender's or recipient's name matches or resembles a name on a sanctions list.
Type of transaction. Certain categories of goods (weapons, dual-use technology, specific financial instruments) are restricted for export even without personal sanctions applying.
What to Do
Ask your bank for the specific reason for the block. Request the error code or the sanctions list that triggered the block.
Screen yourself and your counterparty. Use public databases: OFAC SDN List, EU Sanctions Map, UK Sanctions List. Ensure neither party appears in the lists.
Apply for an OFAC licence. If the transaction is legitimate but technically falls under restrictions, OFAC issues specific licences for certain situations (humanitarian exceptions, informational exceptions, and others).
Contact the bank's compliance officer. In cases of a false positive, the bank can conduct a manual review and unblock the transaction after verifying identity.
Consider alternative jurisdictions. In some cases a payment can be routed through a bank in a neutral jurisdiction that is not participating in the relevant sanctions regime.
FAQ
Funds have already left and are stuck due to a sanctions review โ what happens next? The funds will either be returned to the sender (within a few days to several weeks) or frozen until a licence is obtained or the review is completed.
Can sanctions affect me if I'm not personally on a sanctions list? Yes. If your bank, the recipient's bank, or a correspondent bank is under sanctions, your payment will be blocked even if you personally do not appear on any list.
What is a sanctions false positive? This is when the system erroneously identifies a clean customer as a sanctioned person due to a name match or similar parameter. Such cases require a manual review with supporting documentation.
Encountering sanctions restrictions on international payments? Marix can help you find legal pathways for conducting transactions in complex jurisdictions.

