AIF for Digital Assets: Where the Legal Lines Are Drawn

A fund manager building a digital-asset portfolio faces a question that looks administrative but is, in practice, strategic: does the vehicle constitute an alternative investment fund (a collective investment undertaking that raises capital from investors and invests it according to a defined policy) under the applicable regulatory regime, and if so, where should that fund sit? The answer determines which investors the fund may accept, which regulators will supervise it, how the assets must be custodied, and how much tax leakage accumulates over the life of the vehicle. Get the domicile wrong early, and the cost of unwinding it later – in legal fees, tax exposure and investor notice periods – can easily exceed the cost of getting it right at the outset.

As supervisory regimes converge on the MiCA model in Europe and as leading offshore hubs sharpen their own digital-asset rules, the question of whether a pooled crypto vehicle is an AIF (alternative investment fund) for regulatory purposes has become the threshold issue for every fund formation engagement we handle. This analysis maps the legal lines, contrasts the major domicile options and offers a decision matrix for operators choosing a structure today.

What Makes a Vehicle an AIF – and Why It Matters for Crypto Funds

A pooled vehicle crosses the AIF threshold when it raises external capital from two or more investors, pools that capital and invests it according to a defined policy for the benefit of those investors – without the investors exercising day-to-day control. That functional test, drawn from the EU's Alternative Investment Fund Managers Directive (AIFMD) and mirrored in varying degrees by non-EU regimes, applies regardless of the asset class. A fund holding Bitcoin, ether or tokenised real-world assets is no less an AIF than one holding hedge positions in listed equities.

The consequence of AIF status is managerial in nature: the entity managing the fund – the AIFM (alternative investment fund manager) – becomes a regulated person. It must be authorised or registered, must appoint a depositary (a form of independent custodian), must comply with leverage and liquidity reporting rules and, in the EU, must follow the AIFMD's investor-disclosure obligations. For a digital-asset fund, the depositary requirement alone creates a structural challenge that does not exist for a traditional equity fund: few bank-grade depositaries are operationally ready to hold crypto-native assets in the way AIFMD contemplates.

In our practice, the single most common structural mistake we see at the formation stage is a manager treating the vehicle as a simple limited partnership or special-purpose vehicle, only to discover – months later, when a bank or institutional investor requests regulatory documentation – that the vehicle has been operating as an unregistered AIF. The remediation path is costly and, in some jurisdictions, requires a full redomiciliation.

Does MiCA Change the AIFMD Perimeter for Crypto Funds?

MiCA and AIFMD operate on different regulatory tracks, and a fund holding crypto-assets is typically subject to both – not one or the other. MiCA regulates the issuance and service provision around crypto-assets; AIFMD regulates the management of collective investment vehicles. A fund that holds crypto-assets as defined under MiCA does not escape AIFMD simply because its assets are digital. Conversely, authorisation as a CASP (crypto-asset service provider) under MiCA does not confer any exemption from the fund-management regime.

The practical intersection appears at the portfolio level. Where a fund holds asset-referenced tokens (ARTs) or e-money tokens (EMTs) – the two regulated token categories under MiCA – the fund itself may indirectly be exposed to the MiCA reserve and redemption requirements applicable to those tokens' issuers. This is a second-order effect, not a direct obligation on the fund. But it affects liquidity modelling and the accuracy of the fund's risk disclosures. ESMA has flagged the interaction between MiCA and AIFMD in its supervisory convergence agenda, and national competent authorities are beginning to ask fund managers how they have mapped this interaction in their investment policies.

Where Does a Crypto AIF Sit? A Domicile Decision Matrix

The domicile question for a digital-asset AIF turns on four axes: the investor base, the asset mix, the manager's own licensing position and the fund's desired distribution reach. No single domicile is optimal on all four axes simultaneously, and any analysis that claims otherwise is simplifying for the sake of a commercial pitch.

Profile A – EU-distributed, institutional investor base. A manager seeking to distribute to EU institutional and professional investors needs either EU AIFMD authorisation or, for smaller managers, the national private-placement regime of each target member state. Luxembourg and Ireland remain the dominant EU fund domiciles for this profile. Both have transposed AIFMD fully; both have depositary ecosystems. The depositary gap for digital assets is real in both jurisdictions – most depositaries will hold digital assets only through a regulated sub-custodian – but the Luxembourg CSSF and the Irish Central Bank have each published guidance indicating that AIFMD-compliant digital-asset custody arrangements are permissible under the existing framework, provided the AIFM can demonstrate operational and legal segregation of assets. The authorisation timeline for a Luxembourg AIFM is measured in months; a faster path for a non-EU manager is a Luxembourg-domiciled self-managed AIF or a third-country AIFM relying on national private placement. Both paths carry compliance overhead that a sub-scale manager may find disproportionate.

Profile B – Non-EU institutional and family-office investors, liquid crypto. For a fund targeting US qualified purchasers, Asian family offices and Middle Eastern sovereign or private capital, an offshore domicile – typically Cayman Islands or BVI – remains the standard architecture. The Cayman Islands Monetary Authority (CIMA) regulates both open- and closed-ended funds; the VASP Act layer applies if the fund itself provides virtual-asset services beyond simple holding. In practice, a passive Cayman fund-of-one or a master fund in a master-feeder structure holding Bitcoin or ether is unlikely to require VASP registration under the Cayman regime, though the analysis depends on the precise activities performed at the fund level. Counsel should map this carefully before launch.

Profile C – Manager seeking a regulated hub with digital-asset-specific rules and cross-regional distribution. ADGM (Abu Dhabi Global Market) – regulated by the FSRA (Financial Services Regulatory Authority) – has developed a fund regime that explicitly accommodates virtual-asset funds, with a recognised virtual-assets list that determines which assets a fund may hold under the FSRA's framework. ADGM's proximity to Gulf sovereign capital and its growing fund ecosystem make it a credible alternative to Cayman for managers with a Middle East and Asia distribution mandate. The AIFC in Kazakhstan, regulated by the AFSA, offers a comparable common-law framework at lower cost, with growing traction among managers serving Central Asian and Eastern European investors.

Profile D – Token-native fund, liquid or illiquid, with on-chain distribution ambitions. Panama and Mauritius have attracted attention for tokenised-fund structures, partly because of their lighter-touch regulatory postures and partly because their corporate and fund laws do not presuppose a bank-held register of interests. For a fund distributing tokenised interests to accredited investors outside the EU and US, these jurisdictions offer structural flexibility that the mainstream Cayman form does not. The trade-off is limited depositary infrastructure and, for Mauritius, alignment with the VAITOS Act framework, which is evolving. We address this in more detail in our dedicated Panama and Mauritius structuring guides (links below).

CTA #1 – For operators mapping their domicile options for the first time: The four profiles above describe the standard archetypes. Your facts – investor nationality, asset liquidity, your own regulatory status, redemption mechanics – may point to a hybrid structure or a jurisdiction not on this list. To map the licence, banking and tax stack for your specific build, write to info@oboluslaw.com.

What Is the Depositary Gap, and How Do Crypto AIFs Work Around It?

The depositary requirement is the hardest practical obstacle for a digital-asset AIF operating under AIFMD. A depositary – typically a credit institution or a regulated investment firm – must hold the fund's assets and perform cash-flow monitoring and oversight duties. For traditional securities, "holding" means a book entry in a depository chain. For crypto-native assets, holding means control of private keys, which banks are structurally and operationally unprepared to perform in most markets.

The current market practice, accepted by the CSSF in Luxembourg and the Central Bank in Ireland, involves a three-party arrangement: the AIFM appoints a bank depositary; the depositary sub-delegates custody to a regulated crypto custodian (a CASP authorised for custody services under MiCA or the predecessor regime); the depositary retains liability to the fund for loss of the assets unless it can demonstrate that the loss arose from an external event beyond its control, and it has exercised due diligence in selecting the sub-custodian. The liability-chain mapping between depositary and crypto custodian is not standardised, and the negotiation of this agreement is one of the most time-consuming elements of any EU-domiciled digital-asset AIF launch.

Outside the EU, the constraint is softer but still present. CIMA's fund rules require a fund to maintain a form of independent oversight, though the specific depositary model is less prescriptive than AIFMD's. FSRA's rules in ADGM impose safeguarding requirements on the fund's investment manager in its capacity as a regulated entity. In both cases, the practical question is whether the prime broker or custodian engaged by the fund can demonstrate regulatory-grade key management, insurance coverage and proof of reserves in a form that satisfies the fund's investors and the regulator during a supervisory review.

Does the Digital-Asset Fund Manager Need a Licence?

In every major jurisdiction, managing a digital-asset AIF as a business – whether by making investment decisions, exercising portfolio discretion or managing risk on behalf of investors – requires authorisation or registration. The threshold for exemption is narrow and should not be assumed. A manager relying on a sub-threshold or family-office carve-out must document the basis for that reliance, because regulators in the EU, Hong Kong, Singapore and the UK have each demonstrated willingness to challenge informal or undocumented reliance on exemptions.

Under AIFMD, the relevant threshold is measured by assets under management. Below the threshold, a lighter-touch national registration applies; above it, full authorisation with capital, governance and reporting requirements kicks in. Both thresholds are set in the directive itself at the EU level and transposed by each member state. A manager approaching the threshold – a common scenario for a crypto fund that appreciates rapidly – should model the crossing scenario before the fund is launched, not after it has already exceeded the limit.

Outside the EU, the licensing map is as follows. In Singapore, a digital-asset fund manager managing capital for third parties requires a Capital Markets Services licence from the MAS if the digital assets constitute "capital markets products" under the Securities and Futures Act, or a Payment Services Act licence if its activities are payment-services-adjacent. In Hong Kong, managing a fund investing in virtual assets that are "securities" engages SFC licensing; managing a fund investing in non-security virtual assets may still engage the VASP licensing regime depending on the fund's activities. In the UK, managing a collective investment scheme triggers FCA authorisation under the Financial Services and Markets Act framework. In all cases, the applicable digital-asset-specific rules layer on top of, not instead of, the general fund-management licensing regime.

A point operators regularly miss: the manager's jurisdiction and the fund's domicile can differ, and both can impose licensing obligations independently. A Dubai-based manager of a Cayman-domiciled fund must satisfy both VARA (if its Dubai activities constitute a virtual-asset management activity within VARA's scope) and CIMA's rules for the fund itself. We regularly advise on exactly this dual-layer structure, and the analysis is rarely symmetrical between the two regimes.

How Does Cross-Border Investor Access Work for a Digital-Asset Fund?

Raising capital from investors across multiple jurisdictions adds a distribution compliance layer on top of the fund-formation and manager-licensing questions. This layer is often underestimated by first-time fund managers who focus on the structural question and treat fundraising as an afterthought.

In the EU, a non-EU AIFM seeking to raise capital from professional investors may rely on the national private-placement regimes of the member states it targets – but those regimes are not uniform. Some member states impose prior notification requirements; others impose registration obligations; a handful have effectively closed their national private-placement windows to non-EU AIFMs in certain asset classes. The mapping of which member states a given manager may approach, and on what terms, is a pre-marketing exercise that ESMA has formalised in its guidance on pre-marketing rules under AIFMD.

In the US, the relevant exemptions – Regulation D for domestic accredited investors, Regulation S for offshore transactions – operate alongside the Investment Advisers Act framework. A non-US manager of a non-US fund typically relies on Regulation S for its offshore fundraise and, if it accepts any US investors, structures the US tranche through a Regulation D offering with appropriate accredited-investor and qualified-purchaser gates. The SEC's evolving posture on crypto funds makes the US distribution leg particularly sensitive; we work through this with allied counsel in the US jurisdiction.

For a fund targeting Asian investors, the MAS regime in Singapore and the SFC regime in Hong Kong each impose restrictions on the distribution of funds not authorised in those jurisdictions to retail investors; institutional and professional-investor exemptions generally apply, subject to local conditions. The cross-border reality for a digital-asset fund seeking global distribution is that the compliance map is a matrix of jurisdictions, investor types and offer structures – not a single filing.

A Structural Issue Caught Before Launch: A Micro-Matter

Earlier this year, a digital-asset manager approached us with a proposed Cayman exempted limited partnership structure it had been advised to use for a Bitcoin and ether fund targeting both US qualified purchasers and European professional investors. The proposed structure had been designed primarily for the US feeder and had not been modelled for the European distribution leg. On review, we identified that the marketing activities of the manager's EU-based personnel would engage the national private-placement rules of two target member states, requiring prior notification filings that the manager had not anticipated. We also identified that the proposed depositary arrangement – a prime broker with a sub-custody delegation to an unregulated wallet provider – would not satisfy the due-diligence standards expected by the institutional investors the fund was targeting. We restructured the custody chain through a MiCA-authorised CASP, filed the required national notifications before any marketing activity commenced, and the fund launched on schedule with a clean regulatory position in all target markets.

A Common Assumption That Leads Managers Into Trouble

A common assumption in the digital-asset fund market is that any offshore vehicle works equally well for a crypto fund – that the Cayman limited partnership used for a private-equity fund is an adequate starting point for a liquid, 24-hour crypto fund with retail-adjacent investors. This assumption is wrong on at least three counts.

First, the redemption mechanics of a crypto fund are fundamentally different from those of a private-equity fund. Crypto assets trade continuously; liquidity gates designed for quarterly redemption windows may be commercially unworkable for investors who expect T+1 or T+2 settlement. The fund's constitutional documents – including the limited partnership agreement or the articles of association – must be drafted to reflect the actual redemption economics of the underlying assets.

Second, the tax treatment of a crypto fund is not a peripheral question. At the fund level, the characterisation of gains as income or capital, and the applicability of a double-tax treaty network, varies materially between Cayman, Luxembourg, Malta, ADGM and BVI. At the investor level, the fund's domicile affects whether a withholding tax applies on distributions and whether a controlled-foreign-company charge arises in the investor's home jurisdiction. A manager who selects a domicile without modelling the investor-level tax impact for its anchor investors may find that institutional investors decline to commit, not for regulatory reasons but for tax ones.

Third, the banking layer cannot be ignored. A fund domiciled in a jurisdiction that is on the FATF grey list – or that a correspondent bank treats as high-risk – will struggle to open and maintain the bank accounts needed to receive subscriptions and pay redemptions in fiat. The domicile decision and the banking strategy must be planned together.

CTA #2 – For managers who have already formed a fund structure and encountered an investor or regulator objection: A second structural read can identify the issue and the path to remediation. If a prior structure stalled or a distribution effort was blocked, write to info@oboluslaw.com or message us at t.me/oboluslaw.

Self-Assessment: Is Your Digital-Asset Vehicle Correctly Structured?

Before committing to a fund structure, a digital-asset fund manager should be able to answer each of the following questions with documented analysis, not assumption.

• Does the vehicle meet the AIF definition in the regulator's jurisdiction, and if so, is the manager authorised or registered in the relevant tier?
• Has the depositary or custody arrangement been confirmed in writing with a regulated entity capable of holding crypto-native assets?
• Have the target investor jurisdictions been mapped against their applicable distribution rules, and have pre-marketing or notification obligations been discharged?
• Has the fund's constitutional document been reviewed for compatibility with the redemption profile and liquidity characteristics of the underlying digital assets?
• Have the investor-level tax consequences of the chosen domicile been modelled for the anticipated anchor investor base?
• Has the fund's banking strategy – including the accounts needed for subscription and redemption flows – been confirmed with a banking institution that is operationally willing to service a digital-asset fund from the chosen domicile?
• Has the interaction between any MiCA-regulated tokens held by the fund and the fund's own regulatory obligations been mapped and disclosed in the investor documentation?

Operators we advise routinely discover, when working through this checklist before launch, that two or three items require remediation. The cost of addressing them at the formation stage is a fraction of the cost of addressing them under investor or regulatory pressure after the fund is live.

Related at OBOLUS

• Funds and Investment Vehicles for Digital-Asset Businesses – Our practice overview for digital-asset fund formation, manager licensing and investor structuring.
• Tokenised Fund Structuring in Panama – How Panama's legal architecture supports tokenised fund interests and on-chain distribution.
• Staking Service Legal Framework in Mauritius – The VAITOS Act regime and what it means for digital-asset fund activities in Mauritius.

FAQ

Where should a crypto fund be domiciled?

The right domicile depends on the investor base, the asset mix, the manager's own licensing position and the fund's distribution ambitions. Cayman remains the default for non-EU institutional capital. Luxembourg and Ireland serve EU-distributed institutional funds. ADGM is a credible option for Middle Eastern and Asian capital. Panama and Mauritius offer structural flexibility for tokenised-interest funds. No single domicile is universally optimal; the decision requires modelling the regulatory, tax and banking stack for your specific circumstances before formation.

Does a digital-asset fund manager need a licence?

In virtually every major jurisdiction, yes. Managing a pooled digital-asset vehicle as a business requires authorisation or registration – under AIFMD in the EU, under the MAS Payment Services Act or Capital Markets Services framework in Singapore, under SFC rules in Hong Kong, under FCA rules in the UK and under VARA in Dubai for in-scope activities. Sub-threshold exemptions exist in some regimes but are narrow. Reliance on an exemption must be documented and kept under review as assets under management grow.

How is custody arranged for a crypto fund?

For an EU AIF, custody typically involves a bank depositary that sub-delegates to a MiCA-authorised CASP providing custody services; the depositary retains liability to the fund subject to a due-diligence defence. Outside the EU, CIMA and FSRA regimes impose safeguarding requirements on the manager or prime broker rather than prescribing a bank depositary. In all cases, the custody arrangement must demonstrate regulated key management, operational segregation of assets and insurance or proof-of-reserves coverage that satisfies institutional investors and the relevant regulator.

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 entirety of our practice, and we act only for businesses – not retail participants. We match domicile to investor base, asset mix and redemption profile, and we have structured fund vehicles across the EU, the Gulf, Asia and the offshore centres. To discuss your situation, contact info@oboluslaw.com.

By Victor Olsen, Regulatory & Compliance Analyst – specialising in AIF regulatory perimeter analysis, AIFMD compliance and multi-jurisdiction fund manager licensing for digital-asset businesses.

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.