Custody Arrangements for Funds in Switzerland

A fund manager preparing to launch a digital-asset vehicle in Switzerland quickly discovers that custody is not a back-office afterthought. It is the regulatory spine of the structure. Under the FINMA regime – Switzerland's financial-market supervisory authority – the obligation to segregate and safeguard client assets applies whether the fund holds tokenised securities, payment tokens or a mixed portfolio. Get the custody architecture wrong at inception and the fund either fails its licence review or builds in structural risk that surfaces the moment a redemption is contested.

Switzerland regulates digital-asset custody as a substantive financial activity, not merely a technical function. FINMA applies its token taxonomy – classifying tokens as payment, utility or asset tokens – and the correct custody regime turns on that classification. For funds holding asset tokens that qualify as securities under Swiss law, the custodian must be an entity authorised under the applicable Swiss framework. The right structure depends on the fund's domicile, its investor base and its asset mix.

This page walks through the regulated basis for custody in Switzerland, the inbound process for a fund manager setting up a Swiss vehicle, the cross-border tax and banking interactions that follow, and the decision points that separate a well-structured vehicle from one that will struggle to bank, admit investors or exit cleanly.

Why Does Custody Determine the Entire Fund Structure?

Custody is the load-bearing element of a Swiss digital-asset fund because it determines which investors the fund can admit, which prime brokers and banks will serve the vehicle, and whether the manager is treated as a regulated entity in the first place. A fund that cannot point to a regulated custodian holding its digital assets in segregated accounts will not satisfy institutional investors with their own due-diligence checklists – and it will not satisfy FINMA if the vehicle requires authorisation.

The Swiss legal system distinguishes between holding assets for one's own account and holding them for clients. The moment a fund manager holds digital assets on behalf of a fund's investors, the custody question becomes a regulatory question. For managers we advise, the starting point is always: what does the fund actually hold, and in what form does it hold it?

A fund that holds spot Bitcoin or Ether through a segregated account at a regulated custodian sits in a different regulatory posture from one that holds tokenised equity through a digital securities platform. FINMA's token taxonomy – payment tokens, utility tokens and asset tokens – determines which authorisation track applies to the custodian and, derivatively, which obligations the fund manager must satisfy in its own right.

The wrong domicile locks in tax leakage and limits which investors you can accept. That is not a theoretical risk. Operators we advise who have entered Switzerland with an offshore structure that omits a proper custody analysis have subsequently found that their banking relationships collapsed, their institutional investors could not complete their investment-committee sign-off, and the re-structuring cost exceeded the savings the offshore wrapper was intended to generate.

What Is the Regulated Basis for Custody Under FINMA?

FINMA governs custody through a combination of its licensing tracks and its published guidance on token classification. The custody of client assets – including digital assets – is a regulated activity in Switzerland. The precise authorisation required by the custodian depends on whether it is accepting deposits (banking licence), providing securities custody services (securities firm or bank), or operating a fintech licence with a more limited scope.

For a digital-asset fund, the custodian will typically be either a Swiss bank with a digital-asset service line, a FINMA-supervised securities firm, or an entity operating under the Swiss fintech licence – a lighter-touch authorisation that permits acceptance of public deposits up to a defined threshold but prohibits the custodian from investing those deposits or paying interest. The choice between these tracks is not cosmetic. It affects the custodian's capital requirements, its ability to rehypothecate assets, and its reporting obligations.

FINMA also applies its self-regulatory organisation (SRO) affiliation requirement for anti-money-laundering purposes. Any entity holding digital assets for clients as a financial intermediary must belong to a recognised SRO – the Swiss variant of AML supervision – or be directly supervised by FINMA. Fund managers who are not otherwise licensed must make their own assessment of whether they are acting as a financial intermediary and, if so, affiliate accordingly.

Segregation is the non-negotiable element. A custodian that commingles fund assets – whether on-chain or in omnibus wallets without sub-account ledger controls – cannot satisfy the Swiss requirement that client assets be identifiable and protected in the event of the custodian's insolvency. In our cross-border practice, we have seen custody arrangements that looked adequate on paper but used a single on-chain address with only internal bookkeeping to differentiate client positions. That architecture does not meet Swiss standards and will not withstand insolvency scrutiny.

How Does a Foreign Fund Manager Set Up Custody in Switzerland?

An inbound fund manager faces a sequential process: choose the fund vehicle, establish the custody relationship, and – if the manager's activities require it – address its own authorisation position. These steps are interdependent; the custody arrangement cannot be finalised until the fund vehicle is defined, and the fund's ability to attract investors turns on both.

The first decision is the fund vehicle itself. Switzerland offers the collective investment scheme (CIS) structure under the Collective Investment Schemes Act, together with structures formed under private law – limited partnerships, contractual funds and, for alternative vehicles, the limited partnership for collective investment. The choice between these turns on the investor profile (qualified investors only vs. a broader base), the asset mix and the redemption regime. Digital-asset funds with institutional investors and a long lock-up tend to use the limited partnership for collective investment, which is the Swiss equivalent of the offshore limited partnership fund structure.

The second decision is the custodian. The fund manager must identify a FINMA-supervised entity willing to provide custody for the specific token types the fund will hold. This is a meaningful due-diligence exercise. Not all Swiss banks with a digital-asset capability will custody every token type. Payment tokens (Bitcoin, Ether) are more broadly accepted; asset tokens representing equity or debt interests in a Swiss or foreign issuer involve a more complex legal analysis before any Swiss custodian will accept them.

Once the custodian is confirmed, the custody agreement must address at minimum: the segregation model (individual sub-accounts or pooled with ledger separation), the private-key management architecture, the arrangements for corporate actions and forks, the custodian's right to lend or pledge assets, and the insolvency treatment of digital assets under Swiss law. Switzerland amended its law to clarify that digital assets held by an insolvent custodian are segregated from the custodian's insolvency estate, which was a significant development for the credibility of the Swiss custody market. The precise conditions for that protection to apply are contractual as well as legal, and the custody agreement must be drafted to activate them.

The timeline for establishing a custody relationship in Switzerland varies by custodian and by the complexity of the token mix. Managers we advise typically allow several months for the full process – from initial due diligence through AML onboarding to the finalised custody agreement – before the fund is in a position to accept its first investor capital.

For a scoped assessment of your fund structure and custody options in Switzerland, contact OBOLUS at info@oboluslaw.com. The process above describes the standard path. Your entity type, investor base and asset mix change the analysis – sometimes significantly. To map the right structure from the outset, Map your options.

What Are the Cross-Border Tax and Banking Interactions?

A Swiss fund custody arrangement does not exist in isolation. It sits within a cross-border stack that includes the fund manager's home jurisdiction, the investors' tax residence, the custodian's banking relationships, and the fund's own reporting obligations. Each of these layers creates friction that a custody-only analysis misses.

On the tax side, Switzerland imposes withholding tax on certain income distributions from Swiss collective investment vehicles. For a digital-asset fund, the characterisation of income – trading gains, staking rewards, interest from lending positions – determines whether withholding applies and at what rate. That characterisation is not always settled under Swiss law, and different token types attract different treatments. Managers we advise who are resident outside Switzerland must also consider whether the Swiss fund generates a permanent establishment or taxable presence in their home jurisdiction, which turns on how actively the manager is involved in day-to-day investment decisions versus delegating to a Swiss-based portfolio manager.

The interaction with the EU is particularly important. A Swiss fund manager marketing a Swiss vehicle to EU investors encounters the third-country marketing rules under the relevant EU directives. Those rules do not disappear because the fund is domiciled in Switzerland. They require either a national private placement regime analysis in each target member state or a formal marketing passport where one is available. Switzerland's position outside the EU means that passporting is not available for Swiss AIFs, and the manager must work through the private placement route or establish an EU presence.

Banking is the third pressure point. Swiss banks serving digital-asset funds have tightened their onboarding requirements in recent years. A fund that cannot demonstrate a regulated custody arrangement – including clear records of where assets are held and by whom – will struggle to open and maintain a fiat account for subscription and redemption flows. We have seen funds lose their banking relationships mid-cycle because the custodian's compliance posture changed, which is why the banking and custody stacks must be designed together, not sequentially.

The Travel Rule – the obligation under FATF Recommendation 15 to pass originator and beneficiary information with a virtual-asset transfer – applies to transfers into and out of the custody arrangement. Swiss custodians and exchanges subject to FINMA supervision are expected to comply. The practical implications for a fund are that redemptions paid in crypto require the fund's custodian and the receiving custodian both to have Travel Rule infrastructure in place, which is not universal and can delay settlement if not mapped in advance.

A Practical Illustration

In a recent matter, a European alternative investment manager sought to launch a digital-asset fund domiciled in Switzerland targeting institutional family offices across Western Europe. The initial structure used a non-Swiss custodian in a lighter-touch offshore jurisdiction, on the assumption that Swiss domicile alone would satisfy prospective investors. The fund's seed investors – three family offices with Swiss or German investment-committee approval processes – each declined to commit because the custodian was not FINMA-supervised and could not provide the segregation opinion their committees required. We restructured the custody arrangement around a FINMA-supervised securities firm, revised the custody agreement to address the Swiss insolvency-segregation provisions, and worked through the private placement analysis for each target investor jurisdiction. The fund achieved a first close within a subsequent fundraising cycle. No capital figures are disclosed.

Which Fund Profile Should Choose Which Custody Model?

The custody model that serves a liquid trading fund differs materially from the one that serves a private credit or venture vehicle with a long lock-up. The choice is not purely regulatory; it is also operational and commercial.

A liquid trading fund holding spot payment tokens – Bitcoin, Ether, major stablecoins – will typically require a custodian with real-time settlement capability, an integrated prime-brokerage or lending relationship and a robust on-chain monitoring stack. The custodian must be able to move assets in and out of position efficiently without triggering unnecessary Travel Rule friction. A FINMA-supervised bank or securities firm with a dedicated digital-asset desk is the appropriate counterparty. The manager's own AML and SRO status must be resolved before the fund can trade at scale.

A private equity or venture fund holding tokenised equity or illiquid digital assets will place less emphasis on settlement speed and more on legal certainty over the asset's classification and the custodian's ability to administer corporate actions – forks, airdrops, governance votes – in a way the fund's documents contemplate. Here, the legal analysis of whether the tokens are asset tokens under FINMA's taxonomy, and whether they are treated as securities under Swiss law, drives the custodian selection.

A multi-strategy fund with both liquid and illiquid positions faces the additional complexity of managing multiple custodians or a single custodian with demonstrably separate operational tracks for each asset class. In our practice, multi-strategy managers underestimate the administrative burden of dual-custodian arrangements until they face their first redemption request that requires liquidating both liquid and illiquid positions simultaneously.

Profile A – liquid spot fund, institutional investors, Swiss domicile – typically routes to a FINMA-supervised bank or securities firm with a digital-asset service agreement, a timeline of several months from the decision to launch to the first investor closing, and the primary risk being the narrowing pool of custodians willing to accept the full token range the fund intends to hold.

Profile B – illiquid token fund or tokenised-equity vehicle, smaller investor base, longer lock-up – typically routes to a FINMA-supervised securities firm or a specialist custody provider with an SRO affiliation. The timeline is comparable but the legal analysis is more involved, and the key risk is the classification of the assets and its effect on the fund manager's own licensing obligation.

If a prior application stalled or a custody relationship fell through, a second read can identify the structural gap and the route forward. Reach our structuring desk at info@oboluslaw.com or Map your options to open a scoped review.

Does the Fund Manager Also Need a FINMA Authorisation?

Whether the manager itself requires FINMA authorisation is a question that frequently surprises inbound operators who assume that holding the fund in Switzerland only affects the fund vehicle, not the manager entity. That assumption is incorrect.

A fund manager that manages a Swiss collective investment scheme is subject to FINMA's asset management regulation. The applicable FINMA framework distinguishes between fund management companies – which require a dedicated authorisation – and external asset managers who manage funds below defined thresholds, for whom a registration or lighter licensing route may apply. The threshold analysis and the manager's activity profile determine which route is mandatory.

A common assumption is that an offshore manager can appoint a Swiss representative and avoid any direct FINMA engagement. In our experience, FINMA takes a substance-over-form view of management activity. If the offshore manager is making investment decisions over a Swiss fund and holding itself out to Swiss investors, the question of whether it constitutes a regulated activity under Swiss law must be answered, not assumed away.

Managers who are already licensed in an EU member state – as alternative investment fund managers under the relevant EU regime, for example – cannot automatically rely on that licence in Switzerland. Switzerland is not an EEA member. A Swiss-specific assessment is required, and the outcome depends on the scope of the manager's Swiss activities and its marketing approach to Swiss investors, who are in turn subject to Swiss rules on the marketing of collective investment schemes.

What Are the Most Common Structural Mistakes in Swiss Digital-Asset Fund Custody?

The most consistent error we see is treating custody as a service selection rather than a legal architecture. A manager that approaches custody purely as a vendor search – comparing fees and technology platforms – without a prior legal analysis of what the custodian must be authorised to do will routinely select an entity that cannot legally provide the service the fund requires.

The second common mistake is the omnibus wallet problem. A custodian that holds multiple clients' digital assets in a single on-chain address with only internal bookkeeping to distinguish them does not provide the segregation that Swiss law requires. The contractual agreement may describe the assets as segregated, but if the on-chain architecture does not reflect that, the protection is illusory. Managers must require custodians to provide technical evidence of segregation at the wallet level, not only in their contractual documentation.

Third – and specific to the cross-border context – managers frequently fail to map the Travel Rule obligations of their custody flows before the fund launches. The first time a redemption request arrives requiring an on-chain transfer to a counterparty whose custodian lacks Travel Rule infrastructure, the fund's operations are exposed. Managers we advise address this in the fund documents and in the custody agreement before the first investor is admitted.

Fourth is the gap between the fund documents and the custody agreement. A fund's constitutional documents may describe a custody obligation in terms that the chosen custodian's standard agreement does not satisfy. Investors who read both documents will identify the inconsistency; FINMA, if it reviews the vehicle, will do the same. Aligning the two documents at drafting stage is significantly cheaper than remedying the gap after investors are on the register.

Related at OBOLUS

• Funds and Investment Vehicles practice – the full scope of fund structuring, domicile selection and regulatory positioning for digital-asset managers.
• Fund Manager Licensing for Early-Stage Founders – authorisation strategy and process guidance for managers at the pre-launch stage.
• De-Risking and Account Closure Defence in Liechtenstein – cross-border banking defence for funds and managers affected by account closures in the EEA region.

FAQ

Where should a crypto fund be domiciled?

Domicile selection turns on investor base, asset mix, tax treatment and the manager's own licensing position. Switzerland suits funds with sophisticated institutional investors, a substance-first regulatory environment and an appetite for the FINMA-supervised custody obligation. Other managers choose Cayman, BVI or an EU jurisdiction depending on their investor geography and the applicable marketing rules. There is no universal answer; the decision must match the fund's specific commercial and regulatory profile.

Does a digital-asset fund manager need a licence?

In most established jurisdictions, yes – though the specific authorisation required varies by activity and by the fund's investor base. In Switzerland, managing a collective investment scheme requires engagement with the FINMA framework. External managers below defined thresholds may qualify for a lighter registration track, but this is not automatic. A manager marketing to EU investors must separately address the applicable EU rules, even if the fund is domiciled outside the EU.

How is custody arranged for a crypto fund?

The fund appoints a regulated custodian – in Switzerland, a FINMA-supervised bank, securities firm or fintech-licence entity – under a custody agreement that addresses segregation, private-key management, insolvency treatment and Travel Rule compliance. The custodian must be authorised to hold the specific token types the fund intends to acquire. Custody terms must be aligned with the fund's constitutional documents and with investor due-diligence expectations before the fund admits its first limited partner.

About OBOLUS

OBOLUS is an independent digital-asset law boutique acting only for businesses. We advise exchanges, custodians, token issuers and funds on licensing across 70+ jurisdictions, on disputes and on-chain asset recovery across 25+ forums, and on the tax, banking and compliance that sit around them. Digital assets are the whole of our practice. We match domicile to investor base, asset mix and redemption profile – not the other way around. To discuss your fund's custody architecture, contact info@oboluslaw.com or message us via t.me/oboluslaw.

By Lydia Brennan, Tax & Structuring Analyst – specialising in fund domicile analysis, cross-border tax interactions and custody architecture for digital-asset investment vehicles in Switzerland and across the European and offshore fund centres.

This publication is general information about the law and does not constitute legal advice. It is not a substitute for advice tailored to your circumstances. OBOLUS accepts no liability for action taken or not taken on the basis of this material. For advice on your situation, contact info@oboluslaw.com.