A payments firm discovers that its correspondent bank has frozen a client account overnight. The freeze references OFAC. No notice has arrived yet. The compliance officer needs to know, within hours, whether the block is legally sound, what the firm can and cannot do with the funds, and whether a general licence or specific licence could allow the account to operate again. The answer shapes every commercial decision that follows.
Frozen-account management under OFAC means the structured legal work of handling blocked funds once an account or property is frozen under a sanctions designation. The governing authority is the US Treasury's Office of Foreign Assets Control, acting under IEEPA and related instruments. Accounts blocked under OFAC must be reported within ten business days of the block and held in an interest-bearing account; they may not be transferred, paid, withdrawn, or otherwise dealt with without a specific licence or a covering general licence.
This page sets out the legal basis for OFAC account freezes, the reporting and management obligations, the licensing routes available, how the position compares with OFSI and EU rules, and the practical risk flags that make specialist counsel essential.
What the frozen-account management service covers and who needs it
Frozen-account management under OFAC is a regulated compliance and authorisation task that spans multiple concurrent obligations: identification, blocking, reporting, record-keeping, and – where appropriate – licensing. Any firm that holds, maintains, or processes accounts touching US persons, US-dollar clearing, or counterparties subject to US primary or secondary sanctions may face a block.
The clients who most often need this service are financial institutions (banks, custodians, payment firms) that have frozen a customer account following an OFAC designation or a screening hit. They also include corporates that have received notice that a counterparty's funds are blocked, US subsidiaries of foreign groups holding blocked property, and non-US firms whose correspondent arrangements route through US institutions and are therefore subject to primary OFAC jurisdiction.
The obligations are not optional and they do not wait for legal opinion. Failing to block property that should be blocked, or blocking property without then reporting it, each independently constitutes a potential violation. In our experience, the firms most exposed at this stage are those that freeze the account operationally but then fail to complete the administrative reporting cycle on time.
Our service covers the full lifecycle: confirming whether a valid block obligation exists, reviewing the designation basis, advising on permissible actions with the frozen funds, preparing and submitting the OFAC blocking report, drafting any application for a specific licence, and advising on the conditions imposed once a licence is granted.
The legal basis and governing authority for OFAC account freezes
OFAC derives its authority to require blocking from executive orders issued under IEEPA, and in some programmes under the Trading with the Enemy Act. The practical effect is that any property in which a designated person holds an interest – directly or through entities that designated persons own 50 percent or more in the aggregate – must be frozen on the spot, without prior notice and without waiting for legal confirmation.
The SDN List (OFAC's list of Specially Designated Nationals and blocked persons) is the primary screening reference, but it is not exhaustive. The 50 percent rule (OFAC's rule treating entities owned 50 percent or more by blocked persons as themselves blocked) extends the blocking obligation to entities that may not appear on the list at all. This is the point where screening tools and human judgment diverge most sharply. Automated screening flags list matches. The 50 percent rule requires ownership-chain analysis that no off-the-shelf tool performs reliably without configuration and calibration.
Once a block is made, the account-holder institution must file a blocking report with OFAC. The statutory reporting window is ten business days from the date the block occurs. The blocked funds must be held in a segregated, interest-bearing account. No disposition of those funds – including fees, charges, or set-off against a debt owed to the institution – is permitted without authorisation. Institutions must also file an annual report in January of each year for all blocked property held during the previous calendar year, as currently in force and subject to verification of the current position before reliance.
The position above covers the standard institutional case. Your facts – the counterparty, the underlying instrument, the currency, and the programme in play – change the analysis. For an assessment of your exposure under OFAC, contact Calder & Vance at info@caldervance.com.
The procedure for managing a frozen account: from block to licence
The management of a frozen account follows a defined legal sequence, and each stage carries its own risk of error. The sequence begins at the moment of the block, not at the point when counsel is engaged.
The first step is to confirm that the blocking obligation is valid. This means verifying that the named person or entity is on the SDN List, or that the entity is captured by the 50 percent rule through an ownership analysis. Erroneous blocks – particularly those triggered by name-match false positives – must be corrected promptly. Holding funds under a mistaken block is not a safe default; it can damage the relationship with the account-holder and trigger its own regulatory scrutiny.
The second step is immediate internal escalation and legal hold. The compliance and legal teams must be notified. All communications, screening records, ownership analysis, and transaction history relating to the account must be preserved.
The third step is the blocking report to OFAC within the ten business day window. The report identifies the blocked person, the nature of the property, the value, and the programme under which the block was made. OFAC does not acknowledge receipt of blocking reports automatically; the clock runs from the date of the block.
The fourth step is to assess whether a licensing route exists. General licences (standing authorisations that permit a defined category of transactions without a separate application) are the first review. Many programmes contain general licences that allow, for example, the payment of legal fees, the processing of humanitarian transactions, or the closure of an account through a licensed disposition. If no general licence applies, a specific licence (a case-by-case authorisation) can be sought from OFAC.
Specific licence applications require a clear description of the transaction, the parties, the legal authority being requested, and the policy rationale. OFAC's published processing times vary by programme and complexity; applicants should not assume a short window. In our practice, well-prepared applications with a clear policy-rationale section move through review more predictably than those that simply describe the transaction.
The fifth step is maintaining the block in compliance with any conditions imposed by OFAC, and filing the annual report. Institutions that hold blocked property for extended periods must confirm annually that the funds remain segregated and that the account continues to be maintained correctly.
How does the OFAC position compare with OFSI and EU rules?
For any business with cross-border operations, the OFAC regime for frozen accounts is one of three concurrent regimes that may apply – and the differences between them are operationally significant.
Under OFAC, the ownership test is mechanical: the 50 percent rule applies on aggregated ownership, regardless of control. The block applies automatically on designation. Reporting must occur within ten business days. Licensing is managed by OFAC directly.
Under OFSI – the UK's Office of Financial Sanctions Implementation, which administers UK financial sanctions under the Sanctions and Anti-Money Laundering Act – the test extends beyond ownership to ownership and control (the UK and EU test for whether a non-listed entity is caught through a listed person). Control under OFSI and EU rules can arise even where ownership is below 50 percent. This difference can mean that an entity is blocked in the UK or EU but not under OFAC, or vice versa. The reporting and licensing procedures also differ: OFSI operates its own licensing function and has separate obligations for firms that discover that they are holding funds for a designated person. Our colleagues at Calder & Vance advise specifically on OFSI frozen-account obligations; see our OFSI frozen-account management service for that analysis.
Under EU sanctions regulations, the blocking obligation arises on publication of the designation in the Official Journal. Member State competent authorities administer licensing. The EU General Court provides the judicial review route for those challenging designations. Where a counterparty is designated under both the EU and OFAC, both sets of obligations apply simultaneously – and the stricter prohibition governs in each jurisdiction.
For businesses operating in Switzerland, SECO administers the equivalent function. See our SECO frozen-account management service for guidance on the Swiss position.
The practical implication for a multinational or a correspondent bank operating across these regimes is that a single designation can trigger reporting obligations in multiple jurisdictions within short and non-aligned windows. Coordinating those reports requires counsel who cover each regime, rather than piecemeal advice from separate advisers who may not be aware of what the other regime requires.
If a transaction has already been flagged, or if an account has been frozen and the reporting clock is running, an early review can preserve options that narrow with time. Contact Calder & Vance at info@caldervance.com.
What are the risk flags that make specialist counsel essential?
Frozen-account management carries several layers of legal risk that go beyond the initial block. Each is a point at which the matter can deteriorate without specialist input.
The most common risk is a late or incomplete blocking report. The ten-business-day window is fixed. Institutions that freeze the account operationally but then treat the report as a low-priority administrative task regularly miss it. OFAC treats failure to report blocked property as a separate potential violation from the substantive sanctions breach that triggered the block.
The second risk is erroneous blocking – freezing an account that should not be blocked. This happens when screening tools generate false-positive name matches and the institution does not conduct the individual review needed to clear the match. Holding funds under a mistaken block for extended periods creates both a legal exposure and a client-relationship problem. The correction process requires a written analysis and, depending on the programme, communication with OFAC.
The third risk is unlawful disposition of blocked funds. Even where an institution believes a general licence applies, confirming that coverage before acting is essential. We regularly advise institutions that have charged fees against a blocked account in the belief that this was permitted, only to discover that the specific programme's general licence does not extend to that type of charge. Have you reviewed the applicable general licences at the programme level, not just at the institution's standard policy level?
The fourth risk is secondary-sanctions exposure for non-US firms. A non-US bank whose correspondent clearing routes through the United States may face OFAC jurisdiction even though it is not a US person. The block obligation and the reporting obligation may apply, and the consequences of non-compliance are the same: the risk of correspondent-banking restriction, civil penalties, and, in egregious cases, criminal referral by the Department of Justice.
The fifth risk is the interaction between the blocking obligation and other legal obligations. A frozen account is still subject to anti-money-laundering reporting obligations in most jurisdictions. The institution may be obliged to file a suspicious activity report while simultaneously prohibited from disclosing the block to the account-holder under tipping-off rules. These obligations can create genuine legal tension, and managing them requires coordinated legal advice covering both the sanctions regime and the applicable financial-crime rules.
A common misconception: the block ends the obligation
A persistent myth among compliance teams is that once an account is frozen, the sanctions obligation is satisfied. Freeze it, segregate it, file the report – and then the matter rests until the designation is lifted or OFAC asks a question.
That is not the position. The obligation to manage blocked property continues for as long as the block remains in force. This means maintaining the segregation, preserving records, filing the annual report, reviewing any changes to the designation that might affect the block, and monitoring whether a general licence becomes available that would allow a permissible transaction. Where the blocked account generates interest – as OFAC requires – that interest itself is blocked property and must be tracked and reported accordingly.
In our experience, institutions that treat a block as a closed file frequently discover, months later, that they have accrued additional potential violations: failure to file the annual report, failure to preserve records to the required standard, or failure to monitor a general licence update that would have allowed them to return funds lawfully. The management obligation is ongoing, not episodic.
Record-keeping is a separate point of discipline. OFAC requires that records relating to blocked transactions be maintained for five years from the date of the transaction, as currently in force and subject to verification. Where a block extends for longer than five years – which is not uncommon for major designation programmes – the record-keeping obligation runs for the life of the block and an additional period thereafter. Counsel who set up the initial management structure at the point of blocking ensure that the record-keeping obligation is properly calendared and maintained.
How Calder & Vance assists with frozen-account management under OFAC
We act from the moment a block is made. Our work is structured in phases that mirror the management obligation itself.
In the immediate phase – typically the first one to three business days – we confirm the validity of the block, advise on the scope of the blocking obligation, begin the ownership-chain analysis under the 50 percent rule, and prepare the OFAC blocking report for review and submission.
In the licence-assessment phase, we review all applicable general licences at the programme level, identify whether any permissible transaction is available to the institution or the account-holder, and prepare a specific-licence application where the facts support one. We assess eligibility, prepare and submit the licence application, and manage OFAC's queries through the review process.
In the ongoing management phase, we support annual reporting, monitor programme developments and new general licences, advise on any material change to the ownership or designation status of the blocked person, and manage any OFAC engagement that arises – including requests for additional information.
Where the matter has a cross-border dimension – an OFSI block on the same counterparty, an EU designation running in parallel, or a non-US correspondent bank in the chain – we coordinate the advice across regimes. For BIS and EAR questions that arise in the same matter, we also advise under the Export Administration Regulations; see our BIS/EAR frozen-account management service.
In a recent matter, a mid-sized payment-services business discovered that a corporate customer's account had been caught by the 50 percent rule through an indirect ownership chain that its standard screening had not surfaced. We confirmed the block obligation, prepared and filed the blocking report within the statutory window, mapped the full ownership structure for the OFAC submission, reviewed the available general licences, and managed the specific-licence application that allowed a partial disposition. The matter was handled without a civil penalty and without a missed reporting deadline.
Related practices
- BIS/EAR frozen-account management – legal support for accounts blocked under US export-control rules
- OFSI frozen-account management – reporting, licensing, and management under UK financial-sanctions rules