Financial sanctions do not come from a single list. A party can be targeted by the United States but not by the European Union, or appear on UN lists and from there be implemented by dozens of national legal systems. The distinction matters more than ever in 2026: the EU’s most recent packages against Russia have shifted the focus to anti-circumvention, also designating entities from third countries that facilitate the evasion of the measures, while in Italy the new UIF instructions on suspicious transaction reports, in force since July 1, 2026, require obliged entities to carry out precise checks against EU lists. Understanding how the main sanctions lists work (OFAC, EU, UN and UK HMT) is the first step toward screening that withstands supervisory scrutiny.
Four lists, four legal regimes
Each list answers to a different authority and legal scope. They are not interchangeable, and all of them must be checked when the counterparty, the transaction or the corporate chain has an international dimension.
- OFAC (United States): the Treasury Department’s Office of Foreign Assets Control maintains the SDN List (Specially Designated Nationals and Blocked Persons) and the Consolidated Sanctions List for non-SDN parties. The so-called 50% rule applies: entities owned 50% or more, directly or indirectly, by one or more designated persons are themselves blocked even if they are not listed.
- European Union: the Commission publishes the Consolidated list of persons, groups and entities subject to EU financial sanctions, binding on EU persons and entities. The EU guidance on ownership and control helps assess parties linked to those who are listed.
- United Nations: the Security Council manages the UN Consolidated List, which brings together the sanctions regimes decided at international level. Member States are required to implement it, and many designations that are later extended at regional level stem from this list.
- United Kingdom: since Brexit, the United Kingdom has applied its own regime. OFSI (Office of Financial Sanctions Implementation), part of HM Treasury, maintains the UK Sanctions List, the consolidated list of parties subject to asset freezes.
The differences between OFAC and EU sanctions lists that matter
The first difference is jurisdiction. EU measures bind European operators; OFAC measures can have extraterritorial effects through secondary sanctions, which also target non-US parties that have dealings with certain designated persons. An Italian company with customers or suppliers in the United States, or that transacts in dollars, must therefore look beyond the EU list alone.
The second difference concerns ownership and control. OFAC’s 50% rule and the EU guidance on controlled entities require you to trace the corporate chain: a party that is not listed but is controlled by a designated one may still fall under the asset freeze. Here the line with reconstructing the beneficial owner becomes very thin. The third difference is update frequency: OFAC amends the SDN List several times a month, while the EU acts through packages and periodic reviews, on timelines that are not aligned.
Why a single list is not enough
Relying on a single source exposes you to two opposite risks. On the one hand, you may fail to catch a party listed elsewhere: the typical case is a third-country entity designated for circumvention in an EU package but not yet on other lists. On the other, crude screening generates a huge number of false positives due to namesakes and names transliterated differently from one list to another. The new UIF instructions specifically require namesakes to be ruled out and the substantive link to be verified before reporting, work that becomes unsustainable manually at high volumes.
What to do to make your screening robust
- Check all relevant lists (OFAC, EU, UN, UK) in an integrated way, based on the markets and currencies you operate in.
- Extend the check to ownership and control structures, applying the 50% rule and the EU guidance on linked parties.
- Update lists as often as the sources change, not at fixed intervals.
- Handle namesakes and transliterations with disambiguation logic, to reduce false positives without missing true matches.
- Document every screening decision to ensure an audit trail you can defend before the authority.
How AegisX helps you
With AegisX Sanction Screening you check the main international sanctions lists in a single pass, with continuously updated sources and AI-based disambiguation to cut false positives. Integrated with Monitus for ongoing monitoring of customers and counterparties, it turns a fragmented check into a single, traceable process. Want to see how it works on your risk perimeter? Contact the AegisX team for a demo.
This article is for informational purposes only and does not constitute legal or compliance advice.
