The Discipline of Restraint: What Sanctions Measures Reveal About Enforcement Maturity

On 9 February 2026, the Office of Financial Sanctions Implementation (OFSI) published revised Enforcement and Monetary Penalties guidance. The reforms introduced a structured case assessment matrix, a settlement scheme, an Early Account Scheme for cooperative subjects and fixed penalties for reporting and licensing offences. OFSI has signalled its intention to seek legislation doubling the maximum civil penalty to the greater of £2 million or 100 per cent of the value of the breach.

Three months later, on 20 May 2026, the UK simultaneously extended its Russia sanctions regime and issued a narrow licence permitting continued import of diesel and jet fuel refined in third countries from Russian-origin crude. The press described the licence as an easing of sanctions. Treasury Minister Dan Tomlinson told the Commons it was the opposite. Both descriptions cannot be right.

Yet the question of which is correct misses the deeper development. What began in 2022 as an emergency response to Russia's invasion of Ukraine has matured into a permanent enforcement architecture. Assets worth over £25 billion have been frozen in the UK alone. Across the EU, approximately €210 billion in sovereign reserves are now locked indefinitely under a new legal instrument. Five OFSI penalties were imposed in the twelve months to February 2026. The apparatus is expanding.

The question is no longer whether sanctions work. It is whether the architecture has reached the maturity required to discipline its own use. Expansion is not the same as discipline. Scaling enforcement without proportionality does not strengthen a sanctions regime. It hollows it out.

OFSI is building architecture, not arithmetic

The February 2026 guidance represents the most substantial reform of OFSI's civil enforcement framework since the Sanctions and Anti-Money Laundering Act 2018 took effect. The previous model relied heavily on voluntary disclosure, offering a 50 per cent discount on penalties for firms that self-reported breaches in serious cases. That discount has been reduced to a maximum of 30 per cent, rebranded as a 'Voluntary Disclosure and Cooperation' discount. In its place, OFSI has introduced layered incentives.

The settlement scheme offers a further 20 per cent reduction for subjects who agree not to contest OFSI's findings within 30 business days. The Early Account Scheme provides up to 20 per cent for those who present a comprehensive account of breaches at the outset of an investigation. All discounts now apply cumulatively. The framework rewards transparency and speed. It sharpens consequences for delay.

OFSI has also introduced fixed penalties of £5,000 or £10,000 for information, reporting and licensing offences, creating a faster enforcement route for lower-level breaches. As of April 2025, the agency had 240 active cases under investigation, up from 172 in April 2023. Five penalties were imposed in the twelve months preceding the announcement, including fines against Integral Concierge Services Limited, Svarog Shipping & Trading Company Limited and Markom Management Limited.

The architecture is not confined to penalties. On 20 May 2026, the Russia (Sanctions) (EU Exit) (Amendment) Regulations 2026 came into force. They extended UK prohibitions to refined petroleum products processed in third countries from Russian-origin crude, alongside new restrictions on uranium, LNG maritime services and industrial exports. On the same day, the Office of Trade Sanctions Implementation (OTSI) issued a General Trade Licence permitting continued import of diesel and jet fuel processed outside Russia under defined conditions, with a separate licence covering maritime transportation of Russian LNG from specified projects until January 2027. Treasury Minister Dan Tomlinson told the Commons that the UK regime was "tougher than it was yesterday or last week" and that no existing sanctions had been lifted. The licences are temporary. They are targeted. They are subject to regular review.

The episode is more analytically interesting than the headlines suggest. Coverage in Al Jazeera and The Moscow Times described the licences as an easing of sanctions. The legislative position is the opposite. Prohibition was extended on the same day the licences were issued. What is visible in the May 2026 measures is not relaxation but calibration. The regime has matured to the point where it can absorb an exogenous shock, in this case the disruption to global oil flows following the closure of the Strait of Hormuz, without surrendering its architecture. The US has taken a similar approach through OFAC's General Licence 134 series, most recently extended on 18 May 2026. The EU has declined to follow. Economy Commissioner Valdis Dombrovskis told G7 finance ministers on 19 May 2026 that it was not the moment to ease pressure on Russia.

The trajectory is clear. OFSI no longer issues guidance and waits. It resolves cases faster, publicises outcomes consistently and calibrates penalties to the seriousness of the breach. Licensing operates in parallel. Prohibition, enforcement and licensed exception are no longer separate tracks. They are instruments of a single discipline.

The EU has chosen structural design over spectacle

While the UK has focused on enforcement and licensing reform, the European Union has pursued a different form of escalation. Rather than confiscating frozen central bank reserves outright, the EU designed a mechanism to channel extraordinary profits from those immobilised funds to support Ukraine's defence and reconstruction.

The architecture was built in two stages. On 12 February 2024, the Council adopted Decision (CFSP) 2024/577, requiring depositories holding Central Bank of Russia assets to separately account for extraordinary cash balances. On 21 May 2024, Decision (CFSP) 2024/1470 formalised the obligation to contribute 99.7 per cent of net profits to the European Commission. Early estimates of €15 to €20 billion in after-tax profits by 2027, reported by Reuters in March 2024, have since been tempered by ECB rate cuts.

In December 2025, the EU moved further. The Council invoked Article 122 TFEU to freeze Russian sovereign assets indefinitely. The decision, adopted by qualified majority, removed the six-monthly unanimity renewal that had left the regime vulnerable to a Hungarian or Slovak veto. Assets may not be returned until Russia ceases its aggression and pays reparations to Ukraine.

The original Commission proposal for a €210 billion reparations loan backed directly by the frozen assets was not adopted, largely because Belgium, which hosts Euroclear, demanded guarantees against liability risk. The European Council instead agreed to a €90 billion loan for 2026 to 2027, financed by EU borrowing on capital markets and secured by the EU budget, with the frozen assets as background collateral. The architecture is less dramatic than confiscation. It is also more defensible. Design, rather than spectacle, is the operative discipline.

Proportionality is a test, not a slogan

The legal framework underpinning these regimes was tested at the highest level in July 2025. The UK Supreme Court handed down judgment in Dalston Projects Ltd v Secretary of State for Transport [2025] UKSC 30, unanimously upholding the detention of the superyacht Phi in London's Canary Wharf. The case was heard jointly with the appeal of Eugene Shvidler, a British citizen designated under the Russia sanctions. Together, they became the first occasion on which the UK's highest court considered a sanctions challenge under the post-Brexit framework.

The majority applied the four-limb proportionality test from Bank Mellat v HM Treasury (No 2) [2013] UKSC 39, endorsing the proposition that sanctions operate through cumulative effect. A detention or designation can be upheld if it plausibly contributes to a broader strategy, even where individualised evidence of impact is thin. The Court stated that assessments of sanctions efficacy are ones for which courts are "wholly unqualified" to substitute their own view.

Lord Leggatt's dissent in the Shvidler appeal, though not extending to the Phi direction, was formidable. He described Shvidler's designation as disproportionate. He warned against reasoning that permits guilt by association to become normalised. He emphasised that it is a criminal offence for a designated person to use their own funds, including to buy food, without a licence. The dissent serves as a judicial marker. Deference to the executive in sanctions matters has limits.

Those limits may yet be tested further. Following the Supreme Court's dismissal, the owner of Phi has confirmed an intention to challenge the detention at the European Court of Human Rights, as reported by Boat International in November 2025. Whether or not that challenge succeeds, it underscores the point. Indefinite restraint without personal designation will continue to attract scrutiny.

EU proportionality review remains structurally deferential

Similar tensions are visible in the EU courts. As Marie Terlinden of KU Leuven has documented in the Netherlands International Law Review (2024), judicial review of sanctions under the Common Foreign and Security Policy framework tends to be highly deferential. Proportionality operates as a control against manifest excess, not as a structured balancing exercise. EU regimes frequently rely on standardised packages of measures applied once listing conditions are met, with limited tailoring to the individual. The punitive rhetoric surrounding sanctions has intensified. Anti-circumvention provisions have extended their extraterritorial reach. The legal limits are real and unevenly applied.

Time is the variable that tests every regime

The deeper challenge facing both the UK and EU regimes is duration. Sanctions designed as temporary coercive instruments have, in practice, become indefinite features of the financial landscape. The longer freezes persist, the more exacting the justification must be for their continuation.

Those subject to sanctions perceive indefinite constraints as punishment without trial. The case law shows why that critique is only partially accurate. Sanctions are preventive and political, but they are also legal measures grounded in statute and reviewed by courts against human rights standards. In the EU, the institutional dynamics differ from the UK, particularly when Union-level choices bind market infrastructures across twenty-seven member states.

What begins as deterrence can harden into political theatre if left unexamined. Visibility cannot be the measure of success. Deterrence depends on consistency, clarity of legal basis, credible review and operational follow-through. Enforcement without proportionality erodes legitimacy.

Three disciplines must be embedded for sanctions to endure

If sanctions are to function as durable tools of policy rather than episodic performances of resolve, three disciplines require embedding.

First, objectives must be articulated in operational terms, with measurable indicators reported regularly. OFSI's 2024 to 2025 Annual Review, published in October 2025, recorded 57 enforcement actions and a more intelligence-led approach. The February 2026 reforms take this further by publishing a case assessment matrix that links severity to outcome.

Second, licensing regimes must be fast enough to be credible and humane enough to be defensible. The May 2026 OTSI licences show the principle in operation. They were issued in parallel with the legislation they qualified, not months after it. They are time-limited and reviewable. A licensing process that takes months to address basic needs is not proportionate in practice, whatever the statute provides.

Third, exit ramps must be designed. Reviews that meaningfully reassess designation criteria over time are not signs of weakness. They are proof that the system is still governed by law. The Sanctions and Anti-Money Laundering Act 2018 provides for periodic review. The political incentives to maintain designations are strong.

Restraint is the hinge on which legitimacy turns

OFSI has published a new enforcement rulebook. The EU has locked €210 billion behind Article 122. The UK has demonstrated, in May 2026, that prohibition and licensed exception can operate as a single instrument rather than as competing ones. Courts in London and Luxembourg are drawing the lines. The enforcement architecture is more extensive, more structured and more consequential than at any point since 2022.

The lesson is not that sanctions have gone too far. Nor is it that they have achieved everything they promised. It is that the discipline of restraint is the hinge on which legitimacy turns. Calibration, properly governed, is what separates a maturing regime from a coercive one. If policymakers and regulators treat enforcement as both a statement and a system, they can maintain faith with the rule of law while applying real pressure on those who threaten it. Deterrence must remain the purpose. Theatre should never become the point.

 

Do you trust your sanctions controls reflect not just OFSI's penalty framework but the licensing discipline that runs alongside it?

At OpusDatum, we support firms in navigating the operational, legal and governance challenges of sanctions compliance. Our advisory services help institutions build control frameworks that are proportionate, auditable and aligned with the enforcement landscape as it stands today, not as it stood two years ago.

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