The Luxembourg SCSp: a partnership built for investment structures

The Luxembourg SCSp — société en commandite spéciale, or special limited partnership — is frequently used in Luxembourg fund and private equity structures. It provides contractual flexibility, a general partner and limited partner split, and tax transparency at entity level subject to the municipal business tax and reverse-hybrid analyses described below.

The SCSp is governed by the law of 10 August 1915 on commercial companies and takes most of its structural features from the common limited partnership, the SCS, with one decisive difference. Unlike the SCS, the SCSp does not have legal personality.¹ It still has its own estate, separate from the partners, and assets are registered in the name of the partnership. But contractual flexibility is pushed much further, and the entity is read through the lens of its limited partnership agreement rather than through statutory default rules.

For private equity sponsors, holding groups and asset managers, this translates into three practical features. The LPA can shape the economics of the deal. The vehicle may remain outside Luxembourg entity-level direct taxation, subject to the exceptions analysed below. It can also serve as the legal form of an alternative investment fund, either without a Luxembourg product law or under a product-law framework such as a RAIF, SIF or SICAR. The supervisory position then depends on the framework: a RAIF is not authorised or supervised by the CSSF at product level, whereas SIFs and SICARs are. Practical setup and ongoing follow-through usually connect directly with company formation, Lux GAAP accounting and tax compliance, and often with dedicated Luxembourg SPV services for private equity.

1. Legal basis and the 2013 reform

The SCSp was introduced by the law of 12 July 2013 on alternative investment fund managers, which transposed the AIFMD into Luxembourg law and modernised the partnership regime of the 1915 law.² The objective was explicit. Luxembourg needed a partnership form that matched the expectations of international general partners and limited partners, with a contractual backbone comparable to the Anglo-American limited partnership.

The SCSp is now governed primarily by articles 320-1 and following of the coordinated 1915 law.¹ The provisions specific to the SCS remain the reference for the common limited partnership; the SCSp borrows several of them by reference, and adds its own rules on the absence of legal personality, the opposability of the limited partnership agreement and the treatment of partnership interests.

2. Partners and liability

The SCSp must have at least one general partner and at least one limited partner. The roles are sharply distinct and cannot be freely recombined.

Role	Liability	Typical profile
General partner (associé commandité)	Unlimited, joint and several	Luxembourg SA or SARL, including a company used as a SOPARFI holding, acting as GP
Limited partner (associé commanditaire)	Limited to committed contribution	Investors, institutional LPs, co-investors

In practice, the general partner is almost always a Luxembourg capital company, rarely an individual. Using a Luxembourg SARL or SA as GP places the SCSp’s unlimited general-partner liability at the level of that corporate entity and keeps management, signing authority and representation within a defined corporate layer. It does not exclude exposure under personal guarantees, directors’ duties, contractual undertakings or a person’s own conduct. The dedicated Luxembourg GP setup guide covers the corporate form, capital, 5% interest rule, carry routing and substance of the GP entity in detail. The limited partners’ exposure is in principle limited to their commitment, provided they do not take part in external management in a manner that affects their limited status and subject to their own contractual undertakings.

3. The limited partnership agreement

The limited partnership agreement is the central document of the SCSp. It is where the parties set the economics, governance, distribution waterfall, transfer restrictions, removal and default mechanics, and the commitments of each partner. The 1915 law leaves the agreement considerable room. Most statutory provisions on partnerships can be tailored or disapplied by the LPA, provided the core features of the vehicle and the rights of third parties are preserved.

Unlike the articles of association of a capital company, the LPA does not need to be filed or published in full. Only an extract is registered with the Luxembourg Trade and Companies Register and published in the RESA electronic gazette. That extract covers identification items such as the name, object, duration, registered office and the identity of the general partner, but stays short on economics. Commercially sensitive terms — carry mechanics, hurdle rates, clawback, key-person clauses and the detailed waterfall — remain inside a confidential partnership agreement.

This combination of statutory recognition and contractual confidentiality is one reason the SCSp is used for investor-facing Luxembourg structures. The LPA governs the partnership’s detailed economics and governance, while the public register contains the extract required by law.

4. Formation mechanics

The SCSp does not require a notarial deed. It is incorporated by private agreement among the partners, signed in electronic or paper form. There is no minimum capital. Contributions may be in cash, in kind or in industry, and the mix is structured through the LPA rather than constrained by statutory thresholds.

Registration with the Luxembourg Trade and Companies Register and publication of the extract in the RESA are mandatory and condition the opposability of the partnership to third parties. The vehicle must also be registered with the central register of ultimate beneficial owners and maintain its own register of partners.

The Luxembourg registered office is a practical anchor rather than a symbolic one. It grounds the governance, the books and records, and the tax residence claim at partner level where relevant. Many SCSp structures rely on a Luxembourg domiciliation framework to combine the registered office, the local meeting logistics and the substance indicators expected by counterparties and banks.

5. Tax transparency at Luxembourg level

For Luxembourg direct tax purposes, the SCSp is treated as transparent. It is not a separate taxpayer for corporate income tax, and net wealth tax does not apply at its level.³ Profits are attributed to the partners based on their rights under the LPA, and each partner is taxed in the state and on the basis that follows from its own status.

This transparency can suit investor-facing structures because profits are attributed to partners rather than taxed through a separate corporate-income-tax layer at SCSp level, subject to municipal business tax, reverse-hybrid rules and the partners’ own tax positions. Treaty access then needs to be assessed at investor level and, where relevant, at the level of an underlying Luxembourg capital company used as a SOPARFI blocker, rather than at SCSp level.

The transparency story does not, however, collapse all Luxembourg tax points into silence. Withholding, indirect tax, transfer pricing and reporting questions remain, and must be managed through the partners, the GP and the supporting Luxembourg entities. Partners whose share of the SCSp is attributed to a Luxembourg permanent establishment remain taxable in Luxembourg on that share of income. Since tax year 2022, the reverse hybrid rule of Article 168quater LIR can also subject an SCSp to corporate income tax where 50% or more of the partnership is held by associated non-resident entities that treat it as opaque, subject to the CIV carve-out clarified by the Luxembourg tax administration in 2025.

6. Municipal business tax and the AIF safe harbour

The boundary to watch is municipal business tax. Luxembourg tax transparency for income tax does not automatically extend to municipal business tax.³ An SCSp is subject to municipal business tax at entity level if it is considered to carry on a commercial activity. If it does, the partnership itself becomes liable for this layer of tax, even though corporate income tax and net wealth tax remain outside its perimeter.

The practical safe harbour comes from the alternative investment fund analysis. Under the position formalised in the 2015 circular L.I.R. n° 14/4, an SCSp that qualifies as an alternative investment fund is deemed not to carry on a commercial activity, and is therefore outside municipal business tax, to the extent that the general partner holds an interest of less than 5% in the partnership.³ For most fund structures, this safe harbour aligns naturally with the way sponsor economics are built. The GP takes a small equity slice, and carry is routed through a separate mechanism in the LPA.

Outside the AIF safe harbour, the analysis reverts to the nature of the activity. A partnership that limits itself to holding and managing its own wealth in a passive manner remains outside municipal business tax. A partnership whose activities are clearly of a business nature — active trading, operating assets, recurring fees generated for the partnership itself — crosses the line and becomes taxable.

7. AIF qualification and the AIFM framework

Most SCSps that raise money from external investors qualify as alternative investment funds under the AIFM Law.² That qualification is functional rather than elective. Once an SCSp raises capital from a number of investors and invests it according to a defined investment policy for their benefit, the AIF regime applies, and the SCSp must be managed by an authorised or registered alternative investment fund manager.

The absence of legal personality has a concrete consequence here. The SCSp cannot be authorised as an internally managed AIF. An external AIFM must be appointed, either the general partner acting in that capacity through a properly authorised corporate layer, or a third-party AIFM platform. The choice drives the rest of the operating model — depositary, central administration, valuation, risk and liquidity management, regulatory reporting and, at the more structured end, the marketing passport.

An SCSp can also be used under a fund product law. A RAIF, SIF or SICAR may use the SCSp form, with the product regime layered on top of the partnership framework. The SCSp provides the vehicle and the LPA, while the applicable product law supplies investor eligibility, investment restrictions and reporting. Product-level CSSF authorisation and supervision apply to SIFs and SICARs, but not to RAIFs; a RAIF instead requires an authorised external AIFM.

8. Accounting, annual obligations and ongoing governance

An SCSp keeps its own books and records, but it is outside the Luxembourg standard chart of accounts requirement regardless of turnover. Its accounting and public-filing position depends on the partnership, its partners and any product wrapper rather than on the ordinary capital-company process. The SCSp accounting and tax reporting guide separates those layers and the relevant Forms 200, 205 and 300.

The level of external audit depends on the structure, the LPA and the rules layered on top of the partnership. An SCSp used under the RAIF, SIF or SICAR product law follows that law’s audit framework, including coordination with the depositary and, for product regimes under direct supervision, the CSSF. In every case, governance and operating arrangements must be evidenced in line with the vehicle’s actual functions and applicable rules.

Tax filings typically follow at partner level. Where a Luxembourg partner holds an interest in the SCSp, its own corporate income tax return reflects the allocable share of partnership income, with appropriate documentation on the allocation, the nature of the income and any source-state withholding. Group structures may interact with a Luxembourg capital company used as a SOPARFI holding or with a real-estate structure, and the interaction must be tracked consistently across partners, LPA terms and accounting records.

9. When the SCSp fits and when it does not

The SCSp can fit when the structure is built around a general partner and external limited partners, when economics are carried by the LPA, and when tax transparency at Luxembourg level is relevant. It is used for private equity, venture capital, infrastructure, private debt, real estate and co-investment vehicles, as well as some deal-level or intermediate platforms.

The SCSp requires comparison with a corporate layer where the entity itself must claim treaty relief or where the activity is operational. A pure operating platform, a corporate holding for a small group of long-term shareholders or a domestic family-wealth vehicle may instead call for a capital company. For family-wealth logic, the SPF, SARL and SA sit in different legal and tax perimeters that must be tested against the assets and investors concerned.

Conclusion

The SCSp is a contractual partnership without legal personality whose governance and economics follow the LPA. Its tax, accounting, AIFM and product-law treatment depend on the activity, investors and any wrapper layered onto that form. The distinction between an unregulated SCSp and a RAIF-form SCSp therefore affects regulation without changing the underlying partnership form.

Footnotes

1. Articles 320-1 and following of the coordinated law of 10 August 1915 on commercial companies. ↩ ↩²

2. Law of 12 July 2013 on alternative investment fund managers, which introduced the SCSp and framed its use as an AIF vehicle. ↩ ↩²

3. Circular L.I.R. n° 14/4 of 9 January 2015 on the direct tax treatment of the SCS and the SCSp, including the AIF safe harbour from municipal business tax and the 5% GP threshold. ↩ ↩² ↩³