A letter of credit arrives at a US correspondent bank. The beneficiary is a trading house incorporated in a third country. The underlying goods – industrial components – are destined for a buyer whose ultimate parent sits in a jurisdiction subject to comprehensive OFAC sanctions. The correspondent's compliance officer has minutes to decide whether to process or block. This is the daily reality of trade-finance sanctions controls under OFAC, and it is a reality that costs firms dearly when the analysis goes wrong.
Trade-finance sanctions controls (the suite of OFAC prohibitions and due-diligence obligations that attach to letters of credit, documentary collections, guarantees, and structured commodity finance) apply to any US person and to any transaction processed through the US financial system, regardless of where the trade itself takes place. The governing authority is the Office of Foreign Assets Control within the US Department of the Treasury, acting under statutory powers that include IEEPA and TWEA. As of mid-2026, OFAC administers more than thirty active sanctions programmes, each capable of touching a trade-finance transaction.
This briefing sets out who administers the regime, what the key prohibitions are, how the ownership and control test applies to trade counterparties, what the reporting and record-keeping obligations look like, how enforcement works, and where the OFAC position diverges from OFSI and the EU – the comparison that matters most for cross-border trade flows.
Who administers OFAC's trade-finance sanctions regime – and on what legal basis?
OFAC, a bureau of the US Department of the Treasury, administers the full body of US economic sanctions, including every prohibition that touches trade finance. Its authority rests principally on IEEPA and TWEA, supplemented by the Export Control Reform Act and a series of country- and thematic-specific executive orders and Congressional legislation. The SDN List (OFAC's list of Specially Designated Nationals and blocked persons) is the primary screening reference, but OFAC also maintains the Non-SDN Consolidated Sanctions List, the Entity List (administered by BIS), and the Sectoral Sanctions Identifications List, each carrying distinct prohibitions.
For trade finance, the relevant prohibitions arise from two sources simultaneously: the underlying programme regulations (which determine whether a country, sector, or transaction type is caught) and the SDN List (which determines whether a named counterparty is blocked). A trade transaction can be prohibited by either source independently. Both must be checked. In our experience, compliance programmes that treat these two checks as a single screening step routinely miss the programme-level prohibition, particularly where a correspondent bank is not the direct obligor on the instrument.
The jurisdictional reach of OFAC is deliberately broad. US persons – US citizens, permanent residents, entities organised under US law, and any person physically within the United States – are subject to the full range of prohibitions. Beyond that, OFAC's authority extends to any transaction that is processed through the US financial system, clears through a US correspondent account, or is denominated in US dollars routed via a US bank. That extraterritorial dimension is what makes OFAC relevant to trade transactions between two non-US parties in a third country.
What does OFAC prohibit in trade-finance transactions?
OFAC's core prohibition in the trade-finance context is the processing of any payment, the issuance of any credit instrument, the confirmation or negotiation of any letter of credit, and the provision of any guarantee or advance where a blocked person or a comprehensively sanctioned programme is involved. The prohibition is property-based: it attaches the moment a US person or a US financial institution would handle, transfer, export, withdraw, pay, or otherwise deal in blocked property.
Three categories of trade-finance transaction generate the highest frequency of OFAC issues in our practice.
- Documentary letters of credit: a US confirming or advising bank processes documents that name a sanctioned beneficiary or that evidence goods destined for a comprehensively sanctioned jurisdiction.
- Correspondent-bank payment chains: a USD-denominated payment passes through a US correspondent even where neither the ordering nor beneficiary bank is American, and a sanctioned party appears anywhere in the chain.
- Trade guarantees and standby credits: a US bank issues a performance or payment guarantee in favour of a party that is, or becomes, listed during the instrument's life.
The prohibition on facilitation extends the reach further still. A US person that approves, finances, guarantees, or supports a transaction that a non-US subsidiary or affiliate could not itself conduct may breach the facilitation rule even if no US dollar flows are involved. What does that mean for a US parent whose European subsidiary is financing a trade with a counterparty in a programme jurisdiction? The parent's approval of the transaction, its provision of intercompany funding, or its sign-off in a global credit committee can all constitute facilitation.
The position above covers the standard case. Your facts – the counterparty structure, the instrument type, the currency, the route of the payment, the goods involved – change the analysis materially. For an initial assessment of your exposure under OFAC, contact Calder & Vance at info@caldervance.com.
How does the 50 percent rule apply to trade-finance counterparties?
The 50 percent rule (OFAC's rule treating entities owned 50 percent or more in the aggregate by blocked persons as themselves blocked, even if not separately named on the SDN List) is the single most consequential concept in trade-finance due diligence. A beneficiary under a letter of credit, a shipper, a freight forwarder, or a trading intermediary may be blocked without ever appearing on any list – because one or more of its owners do.
Aggregation is where the rule bites hardest. If two SDN-listed persons each hold twenty-six percent of the beneficiary, the rule is triggered. Neither holding alone would suffice. Screening tools that check entity names but do not trace beneficial ownership will not detect this. The obligation to conduct that ownership analysis sits with the US person – typically the bank – and is not discharged by a clean name-screening result.
For trade finance, the practical implication is substantial. A commodity trading house may have a complex ownership structure involving multiple intermediate holding companies. An issuing bank in a third country presents a letter of credit for confirmation. The beneficiary name is clean. But has anyone mapped the ownership chain behind the beneficiary to the level necessary to apply the aggregation test? In a recent matter, a financial institution processing a structured commodity trade identified – after several layers of ownership tracing – that a combined blocked-person interest of just above fifty percent sat behind an apparently clean trading company. The matter required immediate blocking of the funds and a reporting obligation.
The OFAC test is mechanical: ownership is ownership, and control is not required to trigger it. This contrasts directly with the position under OFSI and the EU. Under ownership and control (the UK and EU test for whether a non-listed entity is caught through a listed person), both the ownership threshold and a separate control limb are relevant. An entity that falls below the ownership threshold under OFSI or EU rules may still be caught if a listed person exercises control over it. The practical divergence matters enormously for a trade-finance transaction touching both the US and European financial systems: a counterparty that clears the OFAC ownership test may still be caught under the EU or UK control test, and vice versa.
If a transaction has already been flagged – by a correspondent, by a screening hit, or by a regulator – an early review can preserve options that narrow with time. For a confidential assessment, contact info@caldervance.com.
What are the reporting and record-keeping obligations for blocked trade-finance transactions?
When a US financial institution blocks a transaction – including a trade-finance payment, a letter-of-credit drawing, or a guarantee demand – it is subject to two immediate obligations under OFAC's rules: it must hold the blocked funds in an interest-bearing account, and it must report the blocking to OFAC within a short statutory window. The same reporting obligation applies when a transaction is rejected rather than blocked – that is, when it is returned or refused because it would violate OFAC rules but does not involve property that is blocked in the hands of the US person.
Critically, blocked and rejected transactions generate separate reporting obligations with distinct timelines and distinct report formats. Conflating them – treating a rejection as equivalent to a blocking for reporting purposes – is a common error. In our experience, compliance teams at mid-sized banks operating active trade-finance desks frequently discover, on audit, that their rejection-reporting procedures are either absent or incorrectly mapped to the blocking form.
Record-keeping obligations require that all relevant documentation relating to blocked property and rejected transactions be retained for five years from the date of the transaction. For trade-finance instruments, that means the underlying credit documents, the screening records, the compliance decision trail, and any correspondence with the counterparty or with OFAC. The five-year retention period is a hard requirement, not a best-practice standard. It supports OFAC's ability to examine the transaction if an enforcement question arises later.
Annual reports of blocked property are also required: US persons holding blocked assets as of 30 June each year must file a report with OFAC by a specified date in the following September. For a trade-finance portfolio with multiple blocked instruments, this means maintaining a running inventory of blocked property and its current value.
How does OFAC enforce trade-finance sanctions controls – and what are the risk flags?
OFAC enforcement in the trade-finance sector follows a two-track model. Egregious violations – those involving wilful conduct, large transaction values, senior management involvement, or dealings with comprehensively sanctioned programmes – attract civil monetary penalties that can reach extremely significant sums, calculated per transaction per day of violation. Non-egregious violations, particularly those disclosed voluntarily before OFAC identifies them, are treated more leniently: a VSD (voluntary self-disclosure to a regulator) can result in a penalty at or near the base amount, or no-action treatment where aggravating factors are absent.
OFAC's enforcement record in trade finance clusters around a recognisable set of risk patterns. The following are the most frequently cited aggravating circumstances.
- Failure to screen all parties to the instrument, including intermediate banks, shipping agents, and named carriers.
- Screening against an outdated or incomplete list version – a particular risk where the firm's list-update cycle does not match OFAC's publication frequency.
- Processing a transaction after a screening alert has been raised but before the alert has been resolved – the "deal too far gone to stop" problem.
- Failure to apply the 50 percent rule to beneficial ownership, relying instead on a name-only screen.
- Processing USD transactions through automated systems with sanctions filters that are not calibrated to capture variant name spellings, Cyrillic transliterations, or alternative entity identifiers.
The cross-border dimension intensifies these risks. A letter of credit issued by a non-US bank and confirmed by a US bank involves at least four parties: the applicant, the issuing bank, the confirming bank, and the beneficiary. Each must be screened. The goods and their routing may create additional exposure – particularly where items are dual-use or subject to export-control classification under the EAR, generating an overlay of BIS obligations on top of the OFAC prohibitions.
Have you mapped every party in your trade-finance instrument chain? The confirming bank screens the beneficiary; but who screens the freight forwarder named in the bill of lading, or the inspection company certifying the goods at origin?
How does OFAC's approach compare with OFSI and the EU?
Cross-border trade-finance transactions almost always touch more than one sanctions regime simultaneously. A USD-denominated credit processed through New York triggers OFAC. The same transaction, if the confirming bank is based in London or Frankfurt, also triggers OFSI or the relevant EU Council regulation. The obligations are not identical – and where they diverge, the stricter prohibition governs the party subject to it.
Three divergences matter most in practice.
The ownership and control test. As noted above, OFAC applies a mechanical fifty-percent ownership test. OFSI and the EU add a control limb: an entity below the ownership threshold may still be caught if a listed person controls it by other means. For a trade-finance transaction touching both jurisdictions, a counterparty must be assessed under both tests. Clearing one does not clear the other.
Licensing architecture. OFAC issues specific licences (case-by-case authorisations) and general licences (standing authorisations covering defined categories). OFSI operates a comparable specific-licence regime, but the UK general-licence architecture differs in scope and in the procedures for confirming eligibility. EU licences are embedded within the Council regulation itself and are administered by the competent authority of the relevant member state – there is no single EU-wide licensing body. A trade-finance transaction that requires authorisation may need three separate licences from three separate authorities.
Secondary-sanctions risk. OFAC's secondary-sanctions programmes can reach non-US financial institutions that conduct significant transactions with certain designated persons or programme jurisdictions, even if no US person or US dollar is involved. OFSI and the EU do not operate secondary-sanctions programmes of the same type. A non-US bank processing a trade-finance transaction in a non-US currency may face no OFSI or EU exposure – but may still face significant US secondary-sanctions risk if the counterparty or the underlying transaction falls within a qualifying category.
For a detailed comparison of the OFSI regime and its interaction with OFAC in trade finance, see our companion briefing: Trade-finance sanctions controls under OFSI: the essentials.
When should a business involve sanctions counsel?
The decision to involve specialist sanctions counsel is not always prompted by a crisis. The most effective interventions we undertake happen before a transaction is committed to – when the ownership analysis can still be completed, the instrument terms can still be adjusted, and a licensing route can still be assessed if one is available.
A myth worth addressing directly: many trade-finance teams assume that if their screening system produces a clean result, no further analysis is needed. That assumption is incorrect. Name-screening against a current list is a necessary first step; it is not a sufficient analysis. The 50 percent rule, the facilitation prohibition, the programme-level prohibitions that attach regardless of whether any named party is listed, and the interaction with BIS export-control classifications all require human analysis that automated tools do not provide.
Circumstances that regularly warrant specialist review include the following.
- A counterparty with opaque beneficial ownership or with shareholders in a jurisdiction subject to a comprehensive or sectoral OFAC programme.
- An instrument involving goods that are dual-use or subject to export-control classification, where BIS and OFAC obligations overlap.
- A transaction in which one of the parties is in a jurisdiction where a secondary-sanctions designation has been made in the relevant sector.
- A compliance alert raised by an automated screening tool, where the alert has been provisionally cleared by a junior reviewer but the underlying ownership analysis has not been completed.
- A trade-finance instrument that has already been blocked or rejected by a US correspondent, requiring a decision about whether to apply for a specific licence or to restructure the transaction.
We regularly advise trade-finance teams and their counsel on exactly these points – from the initial ownership trace, through the compliance analysis, to the decision on whether a licence application is viable. The action library for this work is defined: we assess the counterparty's ownership and control structure, map the applicable programme prohibitions, identify any available general-licence coverage, and – where required – prepare the specific-licence application and manage OFAC's review.
Related practices
- Compliance audit and testing (Australia regime) – independent testing of sanctions screening and compliance controls against the Australian autonomous sanctions regime.
- Trade-finance sanctions controls under OFSI – OFSI's prohibitions, ownership-and-control test, licensing routes, and enforcement posture for trade-finance transactions.
- Compliance audit and testing (BIS/EAR) – classification review, end-use controls, and export-control compliance programme testing under the EAR.