Luxembourg SCSp or RAIF for a European PE fund?
Last reviewed: 1 September 2026
For a closed-ended PE fund raising from institutional and professional investors across Europe, the SCSp (special limited partnership) and the RAIF (Reserved Alternative Investment Fund) are the two most common Luxembourg structures. SCSp is a contractual vehicle usually used inside a RAIF or as a standalone AIF. RAIF is a regulatory wrapper that skips CSSF product authorisation, relying on the AIFM authorisation instead.
The SCSp (société en commandite spéciale) was introduced by the Luxembourg law of 12 July 2013 as a partnership without legal personality, mirroring English LPs and Delaware LPs. Contractual freedom over economics and governance is broad. The SCSp itself is not regulated as a product; regulation attaches through the AIFM.
The RAIF (loi du 23 juillet 2016) is a fund label that removes the CSSF product-authorisation step. The trade-off: a RAIF must be managed by a fully-authorised AIFM (in Luxembourg or another EU member state under the AIFMD passport). Time to market is short, typically weeks, not months.
The two are commonly combined: a RAIF structured as an SCSp gets both the tax and legal familiarity of a partnership and the speed of the RAIF label. For a first-time PE fund without an in-house AIFM, using a third-party AIFM in Luxembourg is standard.
How Reuben AI compares
Luxembourg SCSp vs RAIF for a European PE fund.
| Attribute | Reuben AI | RAIF |
|---|---|---|
| Legal form | SCSp: contractual partnership | Regulatory wrapper (any form incl. SCSp) |
| CSSF product authorisation | SCSp: none | None (relies on AIFM authorisation) |
| Requires authorised AIFM | SCSp: only if AIF above threshold | Yes, always |
| Time to market | SCSp: weeks | Weeks |
| Retail investor access | SCSp: no | Well-informed investors only |
Frequently asked questions
Can a RAIF be an SCSp?
Yes, and it is the most common combination in Luxembourg PE. The RAIF is the regulatory label; the SCSp is the underlying legal form.
Does a RAIF need a Luxembourg AIFM?
It needs an authorised AIFM. That AIFM can be Luxembourg-domiciled or based in another EU member state operating under the AIFMD passport.
Can a first-time PE manager use a RAIF?
Yes, typically by appointing a third-party AIFM in Luxembourg. This is a standard route for managers below the assets-under-management threshold to launch an authorised AIFM themselves.
Does Reuben AI support SCSp and RAIF?
Yes. Both structures are supported natively with partner registers, capital accounts, waterfalls, AIFMD audit trail and LP reporting.
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