Asset Management Lawyers Luxembourg 2026, AIFMD II, AIFM & UCI Compliance Checklist

Luxembourg’s fund industry entered a new regulatory chapter on 16 April 2026, when the Law of 3 March 2026, transposing Directive (EU) 2024/927, widely known as AIFMD II, became applicable to every authorised AIFM and UCI in the Grand Duchy. For asset management lawyers Luxembourg practitioners advise, the compliance window that opened in April and runs through June 2026 is among the most operationally demanding since the original AIFMD transposition in 2013. This article delivers a role-by-role, deadline-by-deadline checklist covering governance, liquidity management tools, delegation oversight, reporting obligations and structuring choices that boards, compliance officers and depositaries must act on now.

It also addresses the parallel amendments to the UCI law, CSSF communication expectations and the emerging implications of Bill 8590 on carried interest.

Executive Summary, What Every Luxembourg AIFM Must Know

The core message is straightforward: the AIFM law 2026 amendments and the parallel UCI law 2026 changes are already in force. Industry observers expect the CSSF to begin supervisory engagement on the new requirements within the current reporting cycle. Every Luxembourg-domiciled AIFM, RAIF initiator, UCITS management company and depositary must verify compliance status immediately.

Five-step urgent checklist:

• Step 1. Confirm that the board has formally acknowledged the Law of 3 March 2026 and adopted a resolution mapping its provisions to the fund’s existing policies (target: completed by end of April 2026).
• Step 2. Implement at least two liquidity management tools for every open-ended AIF and UCI, including the newly mandatory provisions on redemption gates or notice periods, per the ESMA regulatory technical standards.
• Step 3. Re-assess all delegation arrangements, portfolio management, risk management and valuation, against the enhanced oversight requirements now codified in the amended AIFM law.
• Step 4. Update investor disclosures, the prospectus and, where applicable, the KIID/KID to reflect the new liquidity management disclosures and any changes to fee structures or delegation chains.
• Step 5. Prepare for the enhanced AIFM reporting regime, including expanded Annex IV data fields, and confirm the depositary has updated its own oversight procedures.

The sections below unpack each step with specific deadlines, responsible roles, template language and references to the applicable provisions of the Law of 3 March 2026, Directive (EU) 2024/927 and CSSF guidance.

What the Law of 3 March 2026 Changes, AIFMD II & UCI Overview

Summary of Legislative Changes

The Law of 3 March 2026, published in the Mémorial and accessible via Legilux, transposes Directive (EU) 2024/927 (AIFMD II) into Luxembourg national law. It simultaneously amends the law of 12 July 2013 on alternative investment fund managers (the AIFM law) and the law of 17 December 2010 relating to undertakings for collective investment (the UCI law). The directive itself was adopted at EU level to address gaps identified after a decade of AIFMD application, particularly around liquidity risk management, loan origination by AIFs, delegation supervision and regulatory reporting.

The principal changes introduced by the AIFMD II transposition include:

• Mandatory liquidity management tools (LMTs). Open-ended AIFs and UCIs must now select and activate at least two LMTs from a harmonised EU list, one of which must be either a redemption gate or a suspension of redemptions. The ESMA regulatory technical standards further specify calibration and disclosure obligations.
• Loan origination framework. AIFs that originate loans are subject to new risk-retention requirements, diversification limits and organisational standards, a first at EU level.
• Enhanced delegation rules. The substance requirements for AIFMs that delegate portfolio or risk management functions are reinforced, including stricter notification obligations to the CSSF and more granular board oversight duties.
• Expanded regulatory reporting. The Annex IV reporting template is broadened to capture data on delegation arrangements, leverage, liquidity profiles and ESG-related metrics, with reporting frequency increasing for larger AIFMs.
• Depositary regime adjustments. Depositaries face enhanced due-diligence obligations when sub-custodians are used and clarified liability provisions in cases of loss of financial instruments.
• Investor disclosure and cost transparency. AIFM pre-contractual disclosures must now include a more detailed breakdown of costs and charges, including those borne indirectly.

Which Luxembourg Vehicles Are in Scope

Virtually every regulated and semi-regulated Luxembourg fund vehicle falls within the perimeter of the 2026 changes. The following table maps the principal structures to their primary regulatory touchpoints under the amended legislation:

• UCITS (Part I UCI law funds). Affected by the LMT requirements and updated cost-disclosure provisions under the UCI law 2026 amendments.
• SIF (Specialised Investment Fund). Subject to the full AIFMD II regime through their mandatory appointment of an authorised AIFM.
• SICAR (Investment Company in Risk Capital). Covered where the SICAR is managed by an authorised AIFM; specific carve-outs may apply for sub-threshold managers.
• RAIF (Reserved Alternative Investment Fund). Not directly supervised by the CSSF at fund level, but indirectly captured because the managing AIFM must itself comply with the full amended AIFM law. Industry observers expect CSSF supervisory focus on RAIF managers’ compliance as a priority.
• Part II UCIs. Subject to the amended UCI law provisions on liquidity management and disclosure.

Asset management lawyers in Luxembourg consistently emphasise that the RAIF’s indirect supervision model does not exempt its manager from any AIFMD II obligation, the compliance burden attaches to the AIFM, regardless of the fund’s own regulatory status.

Key Dates & Compliance Timeline, Action by Role

The April-to-June 2026 window is critical. The timeline below sets out the principal deadlines and the role-holder responsible for each action. Dates are derived from the Law of 3 March 2026 as published on Legilux and from CSSF communications issued in early 2026.

Board & Governance Deadlines

The board of directors of each AIFM, or the management board of a société de gestion, bears ultimate responsibility for confirming that the entity is compliant with the amended AIFM law from 16 April 2026. In practice, this means convening a board meeting (or adopting a written resolution) that formally acknowledges the new requirements, approves updated internal policies and mandates the compliance function to report on implementation status. The board should also confirm that its own composition meets any enhanced substance or expertise requirements, particularly where the AIFM engages in loan origination.

Compliance Officer & Reporting Deadlines

The conducting officer responsible for compliance must ensure that: (i) the internal compliance monitoring plan has been updated to incorporate the new AIFMD II provisions; (ii) the liquidity management tools selected by the fund have been documented, tested and disclosed; and (iii) the enhanced Annex IV data fields are captured in the AIFM’s reporting systems before the first filing deadline. Early indications suggest that the CSSF will prioritise these areas during its 2026 supervisory review programme.

Depositary & Delegate Duties

Depositaries must update their own internal procedures to reflect: enhanced sub-custody oversight obligations; clarified safekeeping duties for crypto-assets (where relevant); and the revised liability standard for loss of financial instruments held in sub-custody. Delegates, particularly third-party portfolio managers or risk management providers, should expect to receive updated questionnaires and enhanced reporting requests from the AIFM’s board and compliance function as part of the delegation re-assessment exercise.

Operational Compliance, Liquidity Management Tools, RTS & Liquidity Risk

LMT Definitions Under AIFMD II

Directive (EU) 2024/927, as transposed by the Law of 3 March 2026, introduces a harmonised EU-wide list of liquidity management tools that open-ended AIFs and UCIs must incorporate. The list includes: redemption gates, notice periods, redemption fees, swing pricing, anti-dilution levies, redemption in kind and side pockets. Every open-ended fund must select at least two LMTs, and one of the two must be either a redemption gate or a suspension of redemptions. The selection must be disclosed in the fund’s constitutional documents and prospectus.

RTS Requirements, What to Document

The ESMA regulatory technical standards on LMTs, applicable from April 2026, specify the detailed calibration, activation and notification procedures that AIFMs and UCITS management companies must follow. Practically, the AIFM must document:

• The rationale for selecting each LMT, referencing the fund’s redemption profile, investor base and underlying asset liquidity.
• The quantitative thresholds or triggers for activating each tool.
• The governance process for activation, who decides, within what timeframe, and what notifications are required (to the CSSF, the depositary and investors).
• The results of at least one liquidity stress test conducted under the new RTS parameters before the first activation.

Implementing LMTs, Practical Checklist

The following step-by-step implementation checklist reflects both the legal requirements and emerging market practice among Luxembourg fund managers:

1. Policy drafting. Prepare or amend the fund’s liquidity risk management policy to incorporate the chosen LMTs, their activation triggers and the escalation governance chain.
2. Stress testing. Conduct a liquidity stress test under at least two adverse market scenarios, documenting the results and the board’s assessment of the fund’s resilience.
3. Prospectus and KIID/KID update. Insert the required LMT disclosures, including a clear description of each tool, the circumstances of activation and the potential impact on investors.
4. Operational systems. Confirm that the transfer agent, administrator and depositary systems can process gate activations, adjusted NAV calculations (swing pricing) and in-kind redemptions.
5. Staff training. Ensure that portfolio managers, risk officers and client-facing teams understand the new LMT framework and their role in the activation process.
6. Recordkeeping. Establish a log for all LMT-related decisions, stress-test results, CSSF notifications and investor communications.

Governance, Delegation & Depositary Duties Under AIFMD II

Delegation Re-Assessment Checklist

The AIFMD II amendments strengthen the EU-level framework governing AIFM delegation, directly addressing concerns that certain managers may operate as “letterbox entities” without genuine substance. Under the amended AIFM law, every Luxembourg AIFM that delegates portfolio management, risk management or valuation functions must now:

• Re-evaluate each delegation agreement to confirm it meets the enhanced substance, oversight and reporting requirements codified in the new law.
• Document the oversight framework in writing, including the frequency of delegate performance reviews, the specific KPIs monitored and the escalation procedure in the event of underperformance or breach.
• Notify the CSSF of any material changes to existing delegation arrangements and provide a comprehensive delegation register upon request.
• Ensure that at least two conducting officers are resident in Luxembourg and devote sufficient time to supervising delegated functions, a requirement the CSSF is expected to scrutinise with renewed vigour.

Depositary Oversight Changes

The revised depositary provisions clarify the liability regime for loss of financial instruments held through sub-custodians. Depositaries must now conduct enhanced due diligence on sub-custodian networks, including an assessment of insolvency risk, regulatory status and operational resilience. The practical effect for asset management lawyers in Luxembourg advising depositaries is that existing sub-custody agreements may require amendment to reflect the new liability allocation and information-sharing obligations.

Passporting, Marketing & Delegation, Immediate Decisions

AIFMD II does not fundamentally alter the existing passporting architecture, but it introduces additional notification requirements and supervisory co-operation mechanisms. Luxembourg AIFMs marketing funds cross-border should:

• Review and, where necessary, update their marketing passport notifications to host-state regulators, ensuring that the notifications reflect the current delegation structure and LMT framework.
• Verify that pre-marketing activities comply with the refined definitions and disclosure obligations introduced by the directive.
• Confirm that any third-country delegation arrangement satisfies the enhanced supervisory co-operation requirements between the CSSF and the third-country authority.

Structuring Choices, RAIF, SIF, SICAR, UCITS and AIFMs Under AIFMD II

The AIFMD II transposition alters the compliance calculus for fund structuring decisions. The table below compares the principal Luxembourg vehicles, their exposure to the new rules and the practical next steps for each.

Bill 8590 on Carried Interest, Practical Note

Alongside the AIFMD II transposition, Luxembourg’s legislative pipeline includes Bill 8590, which introduces a dedicated tax framework for carried interest distributions received by fund managers and investment professionals. While the bill’s final text and effective date remain subject to parliamentary process, the likely practical effect will be that fund documentation, particularly limited partnership agreements and management company agreements, must be reviewed and potentially amended to accommodate new carried interest allocation mechanics and tax reporting obligations. A dedicated deep-dive on Bill 8590’s implications for fund agreements and documentation is forthcoming.

Reporting & Disclosure, New Templates, Frequency and CSSF Communications

Reporting Checklist, Who Files What and When

The enhanced Annex IV reporting regime under AIFMD II significantly expands the data that Luxembourg AIFMs must submit to the CSSF. The following reporting calendar reflects the key obligations:

• Quarterly reporters (AIFMs managing AuM above EUR 1 billion). First enhanced filing due 30 June 2026 (for the Q1/Q2 2026 period); must include new data fields on delegation, leverage, liquidity profiles and ESG metrics.
• Semi-annual reporters. First enhanced filing due 30 June 2026 or 31 December 2026, depending on the AIFM’s reporting cycle.
• Annual reporters (smaller AIFMs). First enhanced filing due with the annual report for the financial year ending in 2026.

Disclosure to Investors and Prospectus Updates

Pre-contractual disclosures, the prospectus, the KIID/KID and any marketing materials, must be updated to reflect: the LMTs selected and their activation conditions; the revised cost and charges breakdown; and updated information on delegation arrangements. The CSSF communication on AIFMD II implementation is expected to provide further guidance on the format and timing of these updates. Funds distributing cross-border must also verify that host-state notification filings remain current.

Data and Recordkeeping Obligations

The amended AIFM law reinforces the data retention requirements applicable to AIFMs. All records relating to LMT activation decisions, stress-test results, delegation oversight reports and investor complaints must be retained for at least five years and made available to the CSSF upon request. Electronic recordkeeping systems must ensure data integrity, accessibility and audit-trail functionality.

Risk, Compliance Testing and Audit Readiness

Internal Audit Checklist

The internal audit function, or the external auditor where the AIFM has outsourced this function, should prioritise the following areas during the 2026 audit cycle:

• Completeness and accuracy of the LMT policy documentation and stress-test records.
• Adequacy of the delegation oversight framework, including the frequency and substance of delegate performance reviews.
• Compliance of the enhanced Annex IV filings with the new data-field requirements.
• Effectiveness of the cost-disclosure mechanisms and investor communication processes.

Questions for External Auditors and CSSF Engagement

Fund boards and compliance officers should proactively engage with their réviseur d’entreprises agréé to confirm audit scope coverage for AIFMD II provisions. Specific questions to raise include: whether the auditor’s testing plan addresses the new LMT activation governance; how delegation substance will be assessed; and whether the auditor has visibility of the CSSF’s 2026 supervisory priorities. Early engagement with the CSSF, particularly via the CSSF’s eDesk portal, is advisable where transitional questions arise.

Practical Precedent Clauses and Governance Templates

The following template excerpts are provided as starting points. They must be tailored to each fund’s specific circumstances and reviewed by qualified asset management counsel before adoption.

Board Resolution Template (Extract)

“The Board acknowledges the entry into force of the Law of 3 March 2026 transposing Directive (EU) 2024/927 (AIFMD II) and resolves to: (i) approve the updated Liquidity Risk Management Policy, including the selection of [redemption gate] and [swing pricing] as the Fund’s designated liquidity management tools; (ii) mandate the Compliance Officer to complete a delegation re-assessment within 60 days and report to the Board; (iii) authorise the update of the Prospectus and KIID to reflect the new regulatory requirements.”

Delegation Oversight Memo Template (Extract)

“Pursuant to Article [X] of the amended law of 12 July 2013, the AIFM confirms that it has conducted a comprehensive review of the delegation arrangement with [Delegate Name] covering portfolio management functions. The review assessed: (a) the Delegate’s regulatory status and authorisation; (b) operational and IT resilience; (c) compliance with the AIFM’s investment guidelines; and (d) the adequacy of reporting provided to the AIFM’s Board and Compliance function. The AIFM is satisfied that the delegation arrangement continues to meet the requirements of the amended AIFM law.”

Prospectus Disclosure Template (Extract)

“The Fund has adopted [redemption gate] and [swing pricing] as liquidity management tools in accordance with the Law of 3 March 2026 and the applicable ESMA regulatory technical standards. The Board of Directors may activate a redemption gate where net redemption requests on a single dealing day exceed [X]% of the Fund’s net asset value. In such circumstances, redemptions exceeding the threshold will be deferred to the next dealing day on a pro rata basis. Investors are referred to Section [Y] for a full description of the activation conditions and their potential impact.”

Conclusion, Acting Now on Asset Management Compliance in Luxembourg

The Law of 3 March 2026 is not a future event, it is the present regulatory reality for every Luxembourg AIFM, UCITS management company and depositary. The 16 April 2026 applicability date has passed, the enhanced Annex IV reporting deadline of 30 June 2026 is approaching rapidly, and the CSSF’s supervisory programme for 2026 is expected to prioritise AIFMD II implementation as a core review theme.

The practical steps are clear: adopt the board resolution, implement the liquidity management tools, re-assess delegation arrangements, update investor disclosures and prepare for expanded reporting. Each of these steps involves legal, operational and governance decisions that benefit from specialist guidance. Luxembourg remains Europe’s premier fund domicile precisely because its practitioners act promptly on regulatory change, and this cycle is no exception.

For fund managers, general counsel and compliance officers seeking a structured compliance review or assistance with documentation updates, connecting with experienced asset management lawyers in Luxembourg through the Global Law Experts asset management directory provides an efficient route to qualified practitioners who are actively advising on these changes.

Sources

1. CSSF, Commission de Surveillance du Secteur Financier
2. Legilux, Luxembourg Official Gazette
3. EUR-Lex, Directive (EU) 2024/927 (AIFMD II)
4. ALFI, Association of the Luxembourg Fund Industry
5. ESMA, European Securities and Markets Authority
6. Elvinger Hoss Prussen, Investment Funds
7. Arendt & Medernach