The OFAC 50 Percent Rule says that an entity owned 50 percent or more, directly or indirectly, individually or in the aggregate, by one or more blocked persons is itself blocked, even if its name is on no list. For a freight forwarder that means a clean name search on a consignee, shipping line or vessel owner does not clear it. This guide covers only what our main guide on sanctions compliance for freight forwarders leaves thin: how the rule and its UK and EU counterparts work, what the free list tools can and cannot do, when to screen, reporting timelines, and how the US Entity List differs. Rules are stated as of 4 November 2026.
What is the OFAC 50 Percent Rule?
OFAC (the US Treasury's Office of Foreign Assets Control) publishes the Specially Designated Nationals and Blocked Persons List (the SDN List). The 50 Percent Rule, set out in OFAC's revised guidance of 13 August 2014 and its FAQs 398 to 402, extends blocking to entities that are not on the list but are owned 50 percent or more in the aggregate by one or more blocked persons. Their property is blocked automatically, and US persons generally may not deal with them without authorisation.
Three points from OFAC's own FAQs are worth knowing:
- It is about ownership, not control. FAQ 398 says the rule "speaks only to ownership and not to control". An entity that blocked persons control but own less than 50 percent of is not automatically blocked under this rule, though OFAC may still designate it, and OFAC cautions against dealing with entities in which blocked persons hold significant stakes or control.
- Indirect ownership counts. FAQ 401 explains that "indirectly" means ownership of shares through another entity or entities, and gives five worked examples, some where an entity is blocked and some where it is not.
- Selling down later does not always unblock. FAQ 402 says that property already blocked in the US or in the hands of a US person stays blocked even if the blocked person's stake later falls below 50 percent, unless OFAC authorises otherwise.
How does aggregation work in practice?
FAQ 399 confirms that OFAC adds up the stakes of all blocked persons, including persons blocked under different OFAC programmes. The following example is invented for illustration, not a real company.
- Blocked person A owns 30 percent of Meridian Marine Holdings. Blocked person B, listed under a different programme, owns 25 percent. Neither reaches 50 percent alone, but together they hold 55 percent, so Meridian Marine Holdings is blocked although it is not on the SDN List.
- Meridian Marine Holdings owns 60 percent of Meridian Bulk Carriers, which owns the vessel you are about to book space on. Because the holding company is itself blocked, the 60 percent stake carries the blocking down: Meridian Bulk Carriers is blocked too.
- A search of the SDN List for "Meridian Bulk Carriers" returns nothing. The cargo, the freight payment and the vessel are all still exposed.
The chain stops where the numbers stop. If blocked persons together held only 40 percent of Meridian Marine Holdings, the rule would not catch it, though a 40 percent stake held by a sanctioned person is exactly the kind of red flag that deserves a closer look.
Why this matters in freight
Freight moves through layers of companies: consignees and notify parties, trading houses, shipping lines and their subsidiaries, ship managers, registered shipowners (frequently single-vessel companies) and trucking operators. A one-ship owner in a third country, owned by a holding company, owned by a listed individual, is the textbook case. Ask for ownership information on any counterparty you cannot place, and treat refusal as a warning sign.
How do the UK and EU ownership tests differ from OFAC's?
They are not the same rule, and a screening procedure built only around OFAC's will mis-handle UK and EU exposure. The table compares them as read in November 2026; wording on the UK and EU sides should be checked against the current legal texts.
| Point | US (OFAC) | UK (OFSI) | EU |
|---|---|---|---|
| Ownership threshold | 50 percent or more | More than 50 percent of shares or voting rights | Council guidance (July 2024) reads as 50 percent or more of proprietary rights, or a majority interest |
| Aggregating several listed owners | Yes (FAQ 399) | Not simply aggregated, unless held under a joint arrangement (OFSI general guidance) | Yes, per Commission and Council guidance |
| Control | Not part of the automatic rule (FAQ 398) | Separate limb: right to appoint or remove a majority of the board, or reasonable expectation the person can ensure the entity acts as they wish | Control criteria apply separately, including de facto dominant influence |
The UK column is from OFSI's general guidance (updated 12 May 2026), which adds that owned or controlled entities may not be listed in their own right but are still subject to sanctions. A UK call for evidence on the test, mainly about control, ran from 16 February to 20 April 2026; OFSI says the government is exploring aggregation and a 50 percent or more threshold, but I found no published decision. For the EU I read the 2024 Best Practices through a law firm summary, not the Council document, and they are non-binding; the binding test sits in each regulation. Where regimes differ, apply the stricter one that reaches your transaction and take advice.
What can the free list-search tools do, and where do they stop?
Government tools are the right first step and cost nothing. Know what each one covers.
- OFAC Sanctions List Search. Covers the SDN List and the Consolidated (non-SDN) lists, with fuzzy matching on the name field.
- Consolidated Screening List (trade.gov). Combines lists from Commerce (including the Entity List, Denied Persons List, Unverified List and Military End User List), State and Treasury, with a fuzzy-match score. The site calls it an aid for electronic screening and tells users to check the Federal Register and the agencies' own lists before acting. Lists refresh daily, but each agency must supply its updated file first.
- UK Sanctions List. Since 28 January 2026 this is the only source for UK designations. The OFSI Consolidated List closed that day, and newly designated persons no longer receive an OFSI Group ID, only a Unique ID. If your process still points at the old list, it is out of date.
- EU Financial Sanctions Files and the EU Sanctions Map or Tracker. The Commission publishes the consolidated list of persons and entities under EU financial sanctions. The tracker's own disclaimer says only the text in the Official Journal of the EU is authentic.
Their limits are the same everywhere:
- They match names, not ownership. I found nothing on OFAC's search page saying a name search will reveal an entity owned by blocked persons, and none of these tools builds an ownership tree for you.
- Spelling and transliteration. Fuzzy matching helps, but an abbreviated or alternative name can still slip through.
- No vessel history. A list shows who is designated, not where a ship has been, who managed it last year or whether it switched off its tracking.
- No memory. A search is a snapshot. It does not tell you tomorrow that your customer was listed overnight.
What does paid screening software add?
Software does not make the legal question easier, but it does work the free tools cannot do at volume. Typical capabilities, to confirm with any supplier you evaluate:
- Fuzzy and phonetic matching across scripts, with adjustable thresholds and a way to record why a hit was cleared.
- Automatic daily re-screening of your whole customer, consignee and vendor base against list updates, not just at onboarding.
- An audit trail of who screened what, against which list version, and when, which supports the record-keeping covered in our customs audit readiness guide.
- Ownership and corporate-structure data from commercial sources, which is what you need to apply a 50 percent test. Check how current that data is and which countries it covers, because company registries vary widely.
A small forwarder may reasonably run free searches plus documented ownership questions on new accounts; one with many consignees will probably outgrow manual searching. Either way, someone must decide each hit. Our guide to restricted party screening covers the mechanics of a search.
When should a forwarder screen?
One check at onboarding is not enough, because the facts change between the quote and the release. The table maps screening to events in the life of a shipment.
| Event | What to screen | Why then |
|---|---|---|
| Quote request | Shipper, consignee, ports, route, cargo description | Decline early, before you give pricing or documents |
| New account | Company, owners and directors, addresses, bank | Ownership questions and the 50 percent test belong here |
| Booking | All parties, vessel or flight, carrier, ports | The last chance before commitments to the line and agent |
| Amendment to consignee or notify party | The new party, any new address or bank | Late changes are a classic red flag |
| Vessel nomination or substitution | Name, IMO number, owner, manager, operator, recent port calls | The ship you quoted may not be the ship that sails |
| Before release of documents or payment | Everyone again, including paying party | Lists change while cargo is in transit |
| List updates | Your whole existing customer and vendor base | A customer can be listed after you onboarded them |
Record each screen with the date and the list version used.
What are the reporting timelines?
This is where regimes differ most, and where "do I even have to report?" depends on who you are. Confirm the current text before relying on any of it.
United States
- Blocked property. Under 31 CFR 501.603, a US person holding blocked property must report it to OFAC within 10 business days from the date the property becomes blocked. Reports are filed electronically through OFAC's reporting system.
- Annual report. Holders of blocked property file an annual report by 30 September, covering property held as of 30 June.
- Rejected transactions. Under 31 CFR 501.604, a US person that rejects a transaction that would otherwise violate OFAC rules must report it within 10 business days. The definition of transaction includes sales or purchases of goods or services.
I read both sections on the eCFR (latest amendment shown dated 27 July 2026). Whether a particular shipment, payment or document counts as blocked property or a reportable rejection is a legal question; ask counsel before you decide you have nothing to file.
United Kingdom
OFSI's general guidance says "relevant firms" must tell OFSI as soon as practicable if they know or reasonably suspect that a person is a designated person. The defined list includes FSMA-authorised firms, cryptoasset businesses, and from 14 May 2025 high value dealers, art market participants and insolvency practitioners. I did not see freight forwarders named in the part I read, so check whether you fall inside it. Separately, anyone holding frozen assets as of 30 September must report to OFSI by 30 November that year. The guidance adds that reporting to your regulator or filing a suspicious activity report does not satisfy these obligations.
European Union
EU asset-freeze regulations typically oblige persons to supply any information that would facilitate compliance, such as details of frozen accounts, to the competent authority of their member state. The 2014 text of Regulation 269/2014, Article 8, says "immediately". Procedures, forms and deadlines are set nationally and I could not confirm a single EU-wide deadline, so contact the authority in each member state where you operate.
How is the BIS Entity List different from OFAC's lists?
- Different regulator, different effect. OFAC lists block property and prohibit dealings. The Entity List, run by the US Commerce Department's Bureau of Industry and Security (BIS) and found in Supplement No. 4 to Part 744 of the Export Administration Regulations, imposes licence requirements on exports, re-exports and transfers of items subject to the EAR. Each entry states its own licence requirement and review policy, so reading the entry matters.
- "Is informed" letters. BIS can write directly to a company to say a licence is required for specific items, destinations or end users. BIS treats breaching such a letter the same way as breaching a licence requirement. If you receive or learn of one, treat it as binding on that shipment.
- The affiliates rule is on hold, for now. A BIS rule of 30 September 2025 would have extended Entity List restrictions to entities owned 50 percent or more by listed parties, a 50 percent test of the OFAC kind. BIS stayed it from 10 November 2025 until 9 November 2026 unless extended (Federal Register, 90 FR 50857). Press and law-firm commentary reports an extension to 10 January 2027 following a US-China announcement in September, but I did not find a Federal Register notice confirming it. Check the Federal Register before relying on either date.
The export classification side is in our guide to ECCN and EAR99, and the filing side in the AES and EEI explainer.
What to do next
- Add an ownership question to your new-account form (owners of 25 percent or more, parent company, country of registration) and keep the answer on file. The same discipline applies to overseas partners, as in our guide to vetting overseas freight agents.
- Update your written procedure with the screening events in the table above, the lists you use (including the UK Sanctions List) and who may clear a hit.
- Decide who re-screens existing customers when lists change, and whether that is a daily software job or a documented manual routine.
- Find out which reporting duties apply to you by jurisdiction, and put a named contact for counsel or the regulator in the procedure before you need one.
If you are building out compliance and need a partner at origin or destination, you can search more than 29,300 logistics companies by country and service in the CargoLinked directory, and the public requests board lists freight that shippers have posted for forwarders to quote on directly. Whoever you work with, run your own checks.
This article is general information, not legal, tax, financial or customs advice. Sanctions and export control rules change often, differ by country and depend on the facts. Confirm current requirements with the issuing authority or a licensed professional before acting.
