How to Read OFAC Sanctions Check Results
A search that returns a “match” on an OFAC sanctions list is the start of a review, not the end of one. Here is how to actually interpret an OFAC sanction list check result — what a match means, why fuzzy matching produces near-misses, how list types differ, and what to do next.
1. What a “Match” Actually Means
Whether you searched a name through this site’s OFAC Cuba Sanctions Checker or ran the same query through OFAC’s own Sanctions List Search at sanctionssearch.ofac.treas.gov, a returned “match” means one thing and one thing only: the name, or something close to it, appears on a list you searched. It is not, by itself, proof that the person or company you searched is the same party the government designated, and it is not proof of wrongdoing.
Key Takeaways
- A name hit is a lead to investigate, not a legal conclusion.
- Common names (especially short, widely shared given names and surnames) produce false positives routinely.
- Transliteration variants — Spanish, Arabic, Russian, and other names rendered into English spelling in more than one accepted way — multiply the number of near-identical strings a screening tool has to consider a possible hit.
- Before treating any match as confirmed, verify secondary identifiers: date of birth, address, passport or national ID number, and known aliases.
- A clean result on one list is not clearance on every list — see the list-type and Cuba sections below.
In practice, most name searches against a sanctions list return either zero results or a handful of loosely similar names. Very few searches turn up an exact, fully-identified match to a designated party. That is by design: OFAC lists individuals and entities with as much identifying detail as it has (dates of birth, addresses, passport numbers, vessel IMO numbers, aircraft tail numbers), precisely because names alone are not reliable identifiers. Your job when reading a result is to compare those identifiers, not just the spelling of a name.
2. Why Sanctions Screening Uses Fuzzy Matching
No serious sanctions screening tool — OFAC’s own search included — relies on exact-string matching alone. If it did, a designated party could evade every screen simply by adding a middle initial, using a different transliteration, or dropping an accent mark. Instead, tools use fuzzy and phonetic matching: algorithms that score how similar two strings are, even when they are not identical.
Where Spelling Variants Come From
- Transliteration: A single Spanish, Arabic, or Russian name can have multiple accepted English spellings (e.g., Mohammed / Muhammad / Mohamed, or Cyrillic surnames rendered several different ways).
- Diacritics: Accented characters common in Spanish names (í, ó, ñ) are frequently dropped, added, or substituted in different records.
- Word order and truncation: Compound surnames, maternal/paternal surname conventions, and database field-length limits can reorder or cut off parts of a name.
- Aliases (a.k.a. entries): OFAC itself lists multiple known aliases for many SDN entries, which is a form of built-in fuzzy coverage.
This site’s OFAC Cuba Sanctions Checker scores each result as a percentage match rather than a binary yes/no, and returns results down to a similarity threshold rather than only exact hits. That means you should expect to see a range of results — some very close to 100%, some lower — and you should review the lower-confidence ones manually rather than dismissing everything below an exact match. A near-miss is not automatically irrelevant, and a high score is not automatically a confirmed hit.
3. SDN vs. SSI vs. Non-SDN Menu-Based Lists
Not every OFAC list carries the same legal consequence, and reading a result correctly means knowing which list it came from. OFAC maintains several distinct sanctions lists, and a real match on each triggers different obligations.
| List | What It Means | Consequence of a Real Match |
|---|---|---|
| SDN List (Specially Designated Nationals and Blocked Persons) |
Individuals and entities whose property is comprehensively blocked | Full block: freeze assets, no transactions at all absent a license |
| SSI List (Sectoral Sanctions Identifications) |
Companies subject to targeted restrictions in specific sectors (e.g., certain Russian financial or energy entities) | Limited restrictions — often on new debt or equity of specified tenors, not a full block |
| Non-SDN Menu-Based Sanctions List (NS‑MBS) | Parties subject to one or more specific, enumerated prohibitions drawn from a “menu” (used in some CAATSA-related programs) | Only the specific prohibitions listed apply — not a comprehensive block |
4. What to Do With a Positive or Uncertain Match
If a screening tool returns a result that looks like it could be a genuine match, the general compliance posture — regardless of company size — follows a similar shape:
- Do not proceed with the transaction or relationship until the match is resolved one way or the other.
- Escalate for manual review rather than making a unilateral call at the front line. Compare every available identifier: full legal name, date of birth, nationality, address, government ID or passport number, and any listed aliases.
- Document the review — what was compared, who reviewed it, and why the match was cleared or confirmed. OFAC recordkeeping expectations generally run five years.
- Consult compliance or legal counsel for anything ambiguous, high-value, or involving a comprehensively sanctioned jurisdiction like Cuba, Iran, North Korea, Russia, or Syria.
- If a match is confirmed as a true positive involving a U.S. person or U.S. jurisdiction, property generally must be blocked and, depending on the program, a report filed with OFAC within the applicable window.
5. Cuba-Specific Context: SDN List vs. the Restricted List
Cuba screening has an extra wrinkle that trips up a lot of people reading results for the first time: Cuba is not sanctioned only through named individuals and entities on the SDN List. Under the Cuban Assets Control Regulations (CACR, 31 CFR Part 515), Cuba is a comprehensively sanctioned jurisdiction, and a second, entirely separate list also matters — the U.S. Department of State’s Cuba Restricted List (CRL).
- The OFAC SDN List (Cuba program) is a Treasury Department list of specifically designated individuals, vessels, aircraft, and entities whose property is blocked.
- The State Department Cuba Restricted List is a separate list of entities and sub-entities under the control of, or acting for, the Cuban military, intelligence, or security services — commonly GAESA-linked hotels, tourism companies, and holding companies — with which direct financial transactions are generally prohibited for U.S. persons.
- An entity can appear on the Restricted List but not the SDN List, or vice versa. A clean OFAC SDN screen does not mean an entity is clear of Restricted List exposure, and neither list search substitutes for the other.
This is exactly why the OFAC Cuba Sanctions Checker on this site is explicit that a clean SDN result is not a full clearance: for Cuba counterparties, always run a separate check against the Cuba Restricted List as well. Treating the two lists as interchangeable is one of the most common mistakes in Cuba-related sanctions screening.
Frequently Asked Questions
Sources
- U.S. Treasury / OFAC — Specially Designated Nationals and Blocked Persons List
- U.S. Treasury / OFAC — Sanctions List Search (sanctionssearch.ofac.treas.gov)
- U.S. Treasury / OFAC — Sectoral Sanctions Identifications (SSI) List
- U.S. Treasury / OFAC — Non-SDN Menu-Based Sanctions List (NS-MBS)
- U.S. Department of State — Cuba Restricted List
- Cuban Assets Control Regulations, 31 CFR Part 515
Screen Before You Rely on a Single Result
Run your own search with the OFAC Cuba Sanctions Checker, cross-check Cuba counterparties against the Cuba Restricted List Checker, and get up to speed on the agency behind it all at What Is OFAC? None of these tools replace sanctions counsel for high-stakes decisions — they are a starting point for an informed manual review.