A trading company's bank account is frozen. Payments cannot be made, contracts cannot be honoured, and the business stalls. The company is not itself on any list – but a designation issued by the UK's Office of Financial Sanctions Implementation has reached it through an ownership chain. The question is immediate: what does it take to have that designation reviewed and, ultimately, removed?
Under the UK sanctions regime administered by OFSI (the Office of Financial Sanctions Implementation, the authority responsible for implementing financial sanctions in the United Kingdom), a designated person may apply to have their designation reviewed. Building the delisting evidence package under OFSI rules is the critical first step: it is the structured body of factual, legal, and documentary evidence submitted to persuade the relevant authority that the designation criteria are no longer met, or were never met. The governing statutory basis is the Sanctions and Anti-Money Laundering Act, known as SAMLA.
This briefing sets out how the OFSI delisting process works, what a strong evidence package must contain, how the UK position compares with the EU and US routes, and where cross-border businesses most frequently make avoidable mistakes.
Who administers OFSI designations and what is the legal basis?
OFSI operates within His Majesty's Treasury and implements designation decisions made under SAMLA and the thematic sanctions regulations issued under it. The designation decision itself is made by the Secretary of State or, in certain cases, by HM Treasury. The authority is not a court, and its decisions are administrative rather than judicial – but they carry the full force of financial prohibition.
SAMLA provides two main avenues for a designated person who wishes to challenge a designation. The first is an internal administrative review, sometimes called a ministerial review, where the designating authority re-examines the evidence and the decision. The second is a statutory appeal before the appropriate court in England and Wales, which may examine whether the designation was lawful and proportionate.
In our experience, most clients begin with the administrative review rather than immediate litigation. That choice is not always correct. Where the designation rests on a factual error that can be disproved quickly and cleanly, a well-constructed evidence package directed at the administrative review is often the faster route. Where the legal basis is contested, or where the administrative process produces no substantive engagement, the court route becomes necessary.
As of early 2026, OFSI has published guidance on the review process. The guidance is not a rulebook for the content of a delisting submission – it describes the procedure, not the evidential standard. That standard is inferred from the criteria on which the designation was made, and it is there that practitioners must focus.
What must the evidence package contain?
The OFSI delisting evidence package is not a template document. It is a tailored legal and factual submission, built around the specific criteria used to designate the individual or entity, and it must directly address each ground stated or implied in the designation decision.
There are consistent elements across all strong packages, however. The first is a clear identification of the designation criteria – under the applicable thematic sanctions regulations, a designation requires a reasonable grounds belief that the person meets one or more specified criteria. The submission must engage those criteria directly, either showing the factual basis for the belief no longer exists, or that it never did.
The second element is primary documentary evidence. This means bank records, corporate filings, contracts, correspondence, sworn statements, and any other material that directly substantiates the factual position taken in the submission. Secondary or indirect evidence – hearsay, press reporting, or inference – carries much less weight. We regularly advise clients to front-load the package with the strongest primary documents, clearly indexed, so the reviewer can reach the key evidence without searching for it.
The third element is a legal analysis of why the evidence satisfies the applicable test. OFSI is not required to accept that a submission is persuasive simply because documents are provided. The package must explain, in concise and structured legal argument, what the documents show and why that is sufficient to displace the grounds for designation.
The fourth – and frequently neglected – element is an account of changed circumstances where these are relevant. If the designation criterion was met at the time of the original decision but the facts have changed (a relationship has ended, a corporate structure has been dissolved, a position has been relinquished), that change must be evidenced with the same rigour as the original factual challenge.
How does the OFSI route compare with the EU and US processes?
The OFSI administrative review is one of three main delisting routes that a cross-border designated person is likely to encounter simultaneously. Under EU sanctions regulations, the Council of the European Union makes listing decisions. A designated person may challenge those decisions before the EU General Court by way of an annulment action. The EU process is litigation-led: the applicant files an action, the Council defends it, and the Court gives a judgment. The evidential record in EU proceedings is more formally structured than in an OFSI administrative review, and the timelines are considerably longer.
Under the US regime, OFAC maintains the SDN List (the Specially Designated Nationals and Blocked Persons List). A delisting petition to OFAC is an administrative submission, somewhat closer in form to the OFSI review. However, OFAC publishes detailed guidance on the content of petitions, and the evidentiary standard is assessed against the designating authority under the relevant IEEPA-based sanctions programme. The timeline for OFAC to respond to a petition is not fixed and can be protracted.
One critical cross-border point: a simultaneous designation under OFSI, the EU Council, and OFAC is not uncommon for individuals with international profiles. Each designation is independent. A successful OFSI review does not lift an EU or US designation, and vice versa. Businesses and individuals in this position must run parallel proceedings, each with its own evidence package tailored to the relevant criteria. In our practice, we coordinate these streams carefully to avoid an adverse outcome in one jurisdiction undermining the submission in another.
For businesses with Australian connections, the DFAT delisting process under the applicable country regime in Australia raises its own procedural requirements. Our delisting evidence package Australia service page addresses that route in detail.
What are the most common risk flags and mistakes?
Building the delisting evidence package under OFSI rules is not a form-filling exercise. The most significant failures we see are not procedural – they are substantive, and they are avoidable.
The first common error is submitting a package that addresses the wrong criteria. OFSI designations reference specific thematic regulations. If the evidence package is drafted against a general proposition – "my client is not connected to the listed activities" – rather than against the exact criteria stated in the relevant regulations, the submission will not engage the reviewing authority at the level needed.
The second error is evidentiary incompleteness. A submission that makes assertions not supported by primary documents will not succeed. Reviewers do not take factual claims on trust. Every material assertion must be backed by independent, verifiable evidence. Where that evidence exists but has not been assembled, the package fails not on the merits but on proof.
The third error – and one we see frequently in complex corporate structures – is failing to address the ownership and control test (the UK test for whether a non-listed entity is caught because it is owned or controlled by a listed person). If a company is designated partly because a listed person is assessed to control it, the delisting package must address that control relationship directly and show it does not exist or no longer exists. A package silent on this point will not displace the designation.
The fourth risk is timing. There is a statutory window within which certain procedural steps must be taken. Missing that window does not necessarily foreclose all options, but it changes them. Acting early – before statutory deadlines crystallise and before asset freezes cause cascading commercial damage – is materially better than acting late. Would your business be able to assemble the required documents and legal analysis within a short statutory window? That is worth knowing before the designation arrives.
How is the designation enforced while a review is pending?
A designation remains in full force while a review or appeal is in progress. OFSI's enforcement posture is active: financial sanctions prohibit any dealing in, or making available of, funds or economic resources to or for the benefit of a designated person. Those prohibitions apply regardless of whether a review has been filed.
This means that a business whose counterparty has filed an OFSI review – or whose own designation is under challenge – cannot treat the filing as a suspension of the prohibition. The asset freeze continues. Payments remain blocked. Contracts that require performance remain frustrated. Only a licence issued by OFSI (an authorisation to conduct an otherwise prohibited transaction) can permit specific activity in the interim.
OFSI does issue licences pending review in appropriate cases. A specific licence (a case-by-case authorisation issued by OFSI for a defined transaction or class of transactions) can provide operational relief while the substantive challenge proceeds. The licensing and delisting tracks run in parallel and are not mutually exclusive. In many matters, obtaining interim licence coverage is the immediate priority while the evidence package for the designation challenge is being built.
For a detailed account of the related OFSI delisting petition process, see our regime briefing on OFSI delisting petitions.
When does a court challenge become necessary?
The administrative review under SAMLA is the starting point, not the only option. If the review produces a decision that maintains the designation, or if the authority declines to engage substantively with the submission, a statutory appeal before the courts becomes the next step.
Court challenges to OFSI designations can examine both the factual basis of the designation and its legal proportionality. The courts in England and Wales have shown willingness to examine designation decisions with care. That said, a court challenge requires a strong evidential foundation – and that foundation is built during the administrative stage. A poorly prepared administrative submission cannot easily be repaired in litigation. The evidence package built for the administrative review is, in practice, the foundation for any subsequent court action.
The decision between administrative review and immediate litigation requires careful judgment. Relevant factors include the strength of the factual case, the apparent basis of the designation, the urgency of commercial need, and whether there are parallel proceedings in other jurisdictions that affect strategy. We advise clients on this matrix at the outset of every delisting instruction.
For the comparable US BIS process, our regime briefing on BIS delisting petitions sets out how the Entity List review works and where it differs from the OFSI route.
A common misconception: the evidence package is not a formality
Many first-time applicants assume that because the administrative review is not court litigation, it is a lighter process. The misconception runs in both directions. Some assume that a brief letter setting out an assertion of innocence will suffice. Others assume that because the evidential burden is not spelled out in formal rules, any submission will be treated with equal weight.
Neither assumption is correct. OFSI is not required to accept assertions without proof. The absence of a formal rules of evidence in the administrative process does not mean that evidence quality is irrelevant – it means that the reviewer has discretion over how to weigh it. A submission without strong primary documents will be weighed accordingly.
The practical implication is this: the OFSI delisting evidence package should be built to the standard of a piece of litigation-ready evidence, even if the immediate destination is an administrative review. Documents must be authenticated, indexed, and explained. Legal arguments must be structured. The submission must be capable of withstanding scrutiny – because it will face it.
In our cross-border practice, we have found that clients who treat the administrative submission as a rehearsal for a possible court challenge – and prepare it accordingly – consistently achieve better outcomes at both stages than those who view the two as separate exercises.
Related practices
- Delisting evidence package – Australia – advisory and submission service for DFAT delisting under the applicable Australian country regime.
- BIS Entity List delisting petitions – how the US Bureau of Industry and Security reviews and resolves Entity List removal requests.