Switzerland Extends Belarus Sanctions to Crypto and CBDCs

Switzerland's Federal Council adopted a fresh set of Belarus sanctions on 18 September 2026, and the rules took effect the very next day. For the first time under the Belarus regime, the measures explicitly prohibit transactions in specific crypto-assets and central bank digital currencies (CBDCs), including the digital Belarusian ruble. Crypto service providers and decentralised platforms incorporated in Belarus are also off-limits. Financial intermediaries now carry layered reporting obligations that go beyond a simple SECO notification. Accounting and compliance teams need to act quickly.

Background: Why Switzerland Is Acting Now

The Federal Council's decision sits within a pattern of graduated escalation. Switzerland had already adopted earlier rounds of Belarus sanctions, and the Department of Economic Affairs, Education and Research (WBF) had sanctioned two specific companies on 22 May 2026 using powers within its own competence. The latest package is more sweeping: it adopts, at the federal level, the broader EU measures that the bloc enacted on 23 April 2026.

The stated rationale is Belarus's sustained material support for Russia's war against Ukraine. By aligning with the EU package, Switzerland narrows the gap between its Belarus and Russia sanction regimes. In practical terms, financial intermediaries who were already applying Russia-related crypto restrictions now face a nearly parallel set of rules for Belarus-linked exposures.

The EU Alignment Logic

Switzerland is not an EU member, but its sanctions policy has tracked EU measures with increasing precision since the 2022 Russia packages. The April 2026 EU Belarus package extended the bloc's own crypto and CBDC prohibitions, and Bern's September 2026 decision mirrors that extension. Firms operating across both jurisdictions can therefore apply a broadly consistent compliance framework, though the underlying legal instruments differ and should not be conflated in internal policy documentation.

What the New Rules Actually Prohibit

The Federal Council's ordinance introduces three distinct layers of prohibition in the financial sector, each with direct implications for firms that touch digital assets.

Crypto-Asset Transaction Ban

Transactions in specific crypto-assets connected to sanctioned Belarusian persons or entities are now banned, mirroring the treatment already applied under the Russia sanctions regime. The ordinance does not restrict the term to a narrow asset class: it covers crypto-assets broadly, meaning fungible tokens, asset-referenced instruments, and instruments that might otherwise fall outside a strict securities definition could all be captured depending on the counterparty relationship.

CBDC Prohibition, Including the Digital Belarusian Ruble

The explicit inclusion of CBDCs is significant. The digital Belarusian ruble is named as a prohibited instrument. This is one of the first instances in Swiss sanctions law where a state-issued digital currency has been called out by type. For firms that handle cross-border digital payment flows or that operate treasury management functions touching Eastern European corridors, the compliance perimeter just widened in a way that generic crypto screening tools may not immediately capture without configuration updates.

Ban on Dealing with Belarusian Crypto Service Providers and Decentralised Platforms

Transactions with crypto service providers and decentralised platforms domiciled in Belarus are prohibited outright. The reference to decentralised platforms is notable: it signals that Swiss authorities are unwilling to treat the absence of a traditional legal entity as a compliance escape route. Firms should treat any on-chain interaction with protocols that can be traced to Belarusian governance or operational control as potentially within scope.

AML Obligations for Financial Intermediaries

The sanctions ordinance does not operate in isolation. FINMA's communication makes clear that financial intermediaries are required to comply with the ordinance's prohibitions, freeze the assets of sanctioned persons, and report affected business relationships to the State Secretariat for Economic Affairs (SECO). That much is standard sanctions mechanics. The more demanding element is what happens next.

The Dual-Track Reporting Requirement

A SECO report does not discharge the full compliance obligation. Where a financial intermediary retains any residual suspicion about a counterparty or transaction after making the SECO notification, it must conduct additional due diligence under Article 6 of the Anti-Money Laundering Act (AMLA). If that due diligence fails to dispel the suspicion, the intermediary must immediately file a suspicious activity report with the Money Laundering Reporting Office Switzerland (MROS) under Article 9 AMLA.

This dual-track structure means that sanctions compliance and AML compliance run in parallel rather than sequentially. A firm cannot treat a SECO filing as a closing action. Internal workflows need to be designed so that the AML assessment begins at the same time as the sanctions freeze, not after it.

Practical Workflow Implications

For compliance teams, the key process question is how to identify affected business relationships in the first place. Crypto accounting software and digital asset accounting software that feed transaction data into sanctions screening must now include CBDC-type instruments and Belarusian platform addresses in their watchlists. Firms relying on static sanction lists that update on a weekly cycle may need to move to more frequent refresh intervals given how quickly the Belarus and Russia regimes are converging.

Beyond screening, firms should map any existing on-chain positions or counterparty relationships that touch Belarusian entities, confirm the asset freeze has been applied correctly in their books, and document the AML assessment separately from the sanctions filing. That documentation chain is what an auditor or regulator will want to see if the matter is ever reviewed.

Accounting and Financial Reporting Considerations

Sanctions create accounting consequences that run alongside the compliance obligations, and the Belarus extension is no different.

Asset Freeze and Balance Sheet Treatment

When a financial intermediary freezes crypto-assets belonging to a sanctioned person, the question of how those assets are presented in the intermediary's own accounts needs to be resolved quickly. Under Swiss GAAP or IFRS as applied in Switzerland, frozen third-party assets held in custody should generally remain off the balance sheet as custodial items, clearly segregated and disclosed. Where the intermediary holds assets on its own account that are now subject to a prohibition on disposal or transfer, impairment testing may be triggered if the restriction materially affects the asset's realisability. Firms using crypto bookkeeping software should verify that their chart of accounts and asset classification logic can flag restricted positions automatically rather than relying on manual journal entries.

Revenue Recognition and Fee Income

Crypto service providers that were earning transaction fees, custody fees, or management fees from Belarusian clients or counterparties face an immediate revenue recognition issue. Once the prohibition is in force, future fee income from those relationships cannot be accrued. Any previously recognised but uncollected fee income owed by a sanctioned entity becomes a doubtful receivable and should be assessed for write-down. Accurate categorisation in digital asset accounting software matters here: transactions must be tagged by counterparty jurisdiction and sanction status, not just by asset type.

Disclosure in Financial Statements

Firms with material exposure to Belarus-linked crypto positions or service relationships should consider whether the new sanctions regime constitutes a subsequent event requiring disclosure under IAS 10 or the equivalent Swiss standard. The effective date of 19 September 2026 falls within Q3 2026, so quarterly reporters will need to address it in their September 2026 interim notes. Annual reporters with a December year-end will need to include it in the risk and legal contingencies sections of the 2026 annual report.

What This Means for Accounting Firms and CFOs

For accounting firms serving clients with Swiss banking relationships or Swiss-regulated crypto operations, the Belarus extension creates both an advisory opportunity and a risk management task. Clients who have not previously considered Belarus-related exposure may be surprised to find that indirect on-chain counterparty relationships bring them within scope. A proactive review of client portfolios against the new prohibitions, carried out now rather than at year-end, reduces the risk of a late discovery that triggers a sanctions breach notification.

CFOs at crypto-native businesses need to escalate the ordinance to their legal and compliance functions immediately. The combination of a transaction ban, a CBDC prohibition, an explicit reference to decentralised platforms, and a layered AML reporting duty creates a compliance matrix that is more complex than a simple sanctions list update. Governance documentation, board reporting, and internal audit plans should all be updated to reflect the changed risk landscape. For context on how similar dual-track AML obligations have played out in other enforcement contexts, see what the Binance DOJ Iran sanctions probe means for crypto accounting teams.

Firms should also revisit their transaction monitoring configurations. The explicit mention of decentralised platforms as prohibited counterparties means that on-chain analytics need to be part of the sanctions screening workflow, not an afterthought. For a detailed look at how on-chain behavioral signals can support that monitoring, see our coverage of how AML behavioral detection flags suspect wallets.

Frequently Asked Questions

Does the Swiss Belarus crypto ban apply to all crypto-assets or only specific ones?

The ordinance refers to specific crypto-assets connected to sanctioned persons or entities and uses language that mirrors the Russia sanctions framework. The scope is broad by design and is not limited to a named list of tokens. Firms should treat any crypto-asset transaction involving a sanctioned Belarusian counterparty as potentially prohibited and seek legal confirmation on edge cases.

Why is the digital Belarusian ruble specifically mentioned?

Naming a CBDC explicitly signals that Swiss authorities are extending sanctions coverage to state-issued digital instruments, not just commercial crypto-assets. This matters operationally because CBDCs may move through payment corridors or settlement systems that differ from typical blockchain networks, and compliance screening needs to cover both channels.

Does filing a SECO report satisfy the full AML obligation?

No. Under the ordinance as clarified by FINMA, a SECO notification is required but does not replace the independent AML assessment under the AMLA. If suspicion persists after additional due diligence under Article 6 AMLA, the intermediary must also file with MROS under Article 9 AMLA. Both tracks must be completed and documented separately.

How should frozen crypto-assets be treated in the books?

Third-party crypto-assets held in custody and frozen under sanctions should remain off balance sheet and clearly disclosed. Proprietary positions subject to a disposal restriction should be assessed for impairment. The exact treatment depends on the applicable accounting framework and the specific facts, so firms should confirm the approach with their auditors promptly.

Does the ban on decentralised platforms mean firms must screen DeFi interactions?

Yes, in substance. If a decentralised platform can be identified as being under Belarusian governance or operational control, transacting with it falls within the prohibition. Swiss law does not provide a carve-out simply because the counterparty lacks a traditional legal entity structure. On-chain analytics should be part of the screening process.

Source: FINMA