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Setting up a private credit fund in Luxembourg is operationally more demanding than most managers expect. AIFMD II, which came into force on 16 April 2026, introduces a harmonised European framework for loan origination by alternative investment funds and adds new operating requirements for any manager running a private credit strategy.
The latest available market data, from the KPMG/ALFI Private Debt Fund Survey 2025, puts the growth of private debt funds at 24.7% for 2024, taking assets under management from EUR 511 billion to well over EUR 630 billion. What the growth figures do not show is what it actually takes to get a private credit fund live in Luxembourg. The market is dominated by smaller and mid-sized funds: 45% of private debt funds have assets under management of up to EUR 100 million, and 31% sit between EUR 100 and 500 million. Most do not have the internal infrastructure to build the operational layer themselves. That is where things get complicated.
In brief: Setting up a private credit fund in Luxembourg involves more operational complexity than most managers anticipate. AIFMD II, which went into effect 16 April 2026, introduces a harmonised framework for loan origination by alternative investment funds, with new requirements around risk retention, leverage, liquidity management and reporting. Getting the vehicle choice, AIFM appointment and operational processes right from the start is what separates a fund that launches on time from one that does not.
- Private debt AuM in Luxembourg stood at over EUR 511 billion at end 2023 and grew by 24.7% through 2024 (source: KPMG/ALFI Private Debt Fund Survey 2025).
- AIFMD II has taken effect on 16 April 2026 and introduces, for the first time, a harmonised European framework for cross-border loan origination by alternative investment funds.
- Luxembourg has transposed AIFMD II without gold-plating via the law of 3 March 2026, amending the law of of 12 July 2013 on alternative investment managers
- 64% of private debt funds in Luxembourg are structured as Reserved Alternative Investment Funds (RAIFs). Setting up a RAIF legal structure can take up to three months and the full operational set up typically takes 3 to 4 months.
- 45% of private debt funds have AuM below EUR 100 million, meaning most managers operate without a full internal administrative infrastructure.
- An integrated fund services provider covering both fund administration and AIFM/ManCo reduces the coordination effort between parties and gets the fund to market faster.
What we see time and again with fund managers starting out in private credit in Luxembourg is that the plan on paper looks solid. The legal structure is thought through, the investor commitments are in place, and the strategy is clear. Then the operational reality sets in.
Five areas come up repeatedly.
RAIF, SIF, SCSp: the choice is often driven by what the manager has used before or what their lawyer is most familiar with. But each vehicle has different implications for your operational setup, your reporting obligations and your investor eligibility rules.
A RAIF is by far the most common choice for private debt in Luxembourg, accounting for 64% of funds according to KPMG/ALFI. It combines speed with flexibility: setup typically takes 4 to 6 weeks and the fund can be fully operational within 3 to 4 months. But a RAIF must appoint an authorised AIFM. That requirement is not optional, and sourcing the right AIFM partner is not a last-minute decision.
AIFMD II introduces a harmonised framework for loan origination by alternative investment funds across the EU. For funds that originate loans, this means new requirements: risk retention at a minimum of 5% of the notional value of originated loans, leverage caps, liquidity management tools, and expanded reporting obligations. These are not compliance checkboxes. They require processes, systems, and people to be in place before the fund starts deploying capital.
Luxembourg has transposed AIFMD II into national law on 3 March 2026. That means the directive applies as written at EU level, with no additional national requirements layered on top. That is a positive signal for managers, but it does not reduce the operational build-out required.
Once operational, many managers find themselves coordinating between a fund administrator, an AIFM or ManCo, a depositary, an auditor, and sometimes a compliance consultant. Each has its own systems, its own reporting cycle, and its own definition of done. At regulatory deadlines, Annex IV reporting rounds, or investor closing periods, that fragmentation shows up as delays, miscommunication, and management time spent on coordination that was never budgeted for.
When fund administration and AIFM functions sit with a single provider, the handoffs disappear. That is not a marginal efficiency. For a smaller fund without a dedicated COO or operations team, it can be the difference between meeting a deadline and missing it.
Managers often build their launch plans around the fastest possible scenario: RAIF in 4 to 6 weeks, service providers onboarded, investor documents ready. In practice, the full operational setup including KYC/AML onboarding, account opening with the depositary, and system configuration for loan administration adds 4 to 8 weeks on top of the legal timeline. If the AIFM appointment has not been confirmed, that adds further time.
Starting the operational conversation early, before term sheets are signed, consistently produces better outcomes than working back from a fixed closing date.
Private credit investors expect detailed reporting: loan-by-loan performance, interest coverage data, covenant status, default and recovery metrics. These requirements do not come from regulation alone. They come from LPs who are managing their own risk and liquidity positions. Building the reporting infrastructure from the start, rather than retrofitting it after the first reporting deadline, saves time and cost.
Open-ended structures, which doubled to 26% of the Luxembourg private debt market in 2024 according to EY Luxembourg, add another layer: ongoing liquidity reporting and NAV calculation become more frequent and more demanding.
The five areas above are not a checklist to hand to a lawyer. They are the operational decisions that shape whether your fund launches on time, stays within budget, and runs without avoidable friction once it is live.
The managers who navigate this well are the ones who start the operational conversation early and work with a provider that has done this before.
Trustmoore is an integrated fund services provider in Luxembourg, covering both fund administration and AIFM/ManCo services through Funds Avenue. For private credit managers setting up in Luxembourg or preparing for AIFMD II, that means a single point of contact for the full operational layer, from fund launch through to day-to-day administration and regulatory reporting.
Contact us to schedule a conversation about what your private credit setup involves operationally.
Working with an adviser on the legal or tax side of a private credit structure? We regularly work alongside legal counsel, tax advisers and M&A boutiques. If this article is useful for a client conversation, feel free to share it. We are happy to take the operational questions off your plate.
Luxembourg transposed AIFMD II ahead of the EU deadline, via the law of 3 March 2026, which amends the law of 12 July 2013 on alternative investment fund managers. The framework is therefore already in force. Managers running loan-originating funds in Luxembourg are now operating under the national law, not solely the EU Directive.
A Reserved Alternative Investment Fund (RAIF) is a Luxembourg fund vehicle that can be set up quickly, typically in 4 to 6 weeks, without prior regulatory approval from the CSSF. It must appoint an authorised AIFM. RAIFs account for 64% of private debt funds in Luxembourg, according to KPMG/ALFI, because they combine speed to market with operational flexibility.
AIFMD II introduces a harmonised EU framework for loan origination by alternative investment funds. Loan-originating funds must retain at least 5% of the notional value of originated loans, comply with leverage caps, implement liquidity management tools, and meet enhanced reporting obligations. In Luxembourg, these requirements are now governed by the law of 3 March 2026.
Yes. A RAIF must appoint an authorised Alternative Investment Fund Manager. This can be an external AIFM or ManCo. The AIFM is responsible for risk management, portfolio oversight and regulatory compliance. Identifying and appointing an AIFM is one of the first decisions in the setup process, not one of the last.
A RAIF structure can be legally established in 4 to 6 weeks. Full operational readiness, including service provider onboarding, account opening, system configuration and KYC/AML processes, typically takes 3 to 4 months from the start of the process.
A RAIF requires an authorised AIFM but does not need prior CSSF approval. A SIF (Specialised Investment Fund) is regulated and requires CSSF approval, which adds time. An SCSp (Special Limited Partnership) is a legal form rather than a regulated vehicle and is commonly used as a sub-fund structure. The right choice depends on your strategy, investor base and timeline, and requires input from legal counsel familiar with Luxembourg fund law.
Private credit investors typically expect loan-level performance data, interest coverage metrics, covenant status, and default or recovery information. For open-ended structures, which doubled to 26% of the Luxembourg private debt market in 2024, NAV calculations and liquidity reporting add further complexity. Building the reporting infrastructure at launch, not after the first reporting cycle, avoids costly retrofitting.
Using separate providers is common, but it puts the fund manager in the position of coordinating between them, particularly at reporting deadlines and investor closing periods. When fund administration and AIFM/ManCo services sit with a single provider, that coordination is handled internally. For smaller funds without a dedicated operations team, this removes a meaningful administrative burden and reduces the risk of gaps between parties.
Sub-threshold managers operating below the AIFMD thresholds (EUR 100 million for leveraged AIFs, EUR 500 million for unleveraged AIFs) are not required to obtain a full AIFM authorisation. However, if a private credit strategy grows above those thresholds, or if the fund structure requires an authorised AIFM regardless of AuM (as with a RAIF), a licensed AIFM must be in place before launch. Managers in this situation need legal advice on their specific structure and timeline.
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