Ireland wins exchange-traded funds and most US equity mandates, because Irish funds pay 15% instead of 30% on US dividends and the country is common law and English-speaking. Luxembourg wins private markets, where the RAIF and SCSp launch without regulator approval and host most of Europe's long-term funds, and leads cross-border retail distribution. For ordinary UCITS, either works.
Two giants with different strengths
Luxembourg and Ireland host most of Europe's cross-border funds. Luxembourg's funds held about EUR 6.7 trillion in mid-2026 under CSSF supervision, plus some EUR 1.7 trillion more in unregulated vehicles such as the RAIF and the SCSp. Irish-domiciled funds held about USD 6.5 trillion at the end of 2025, more than four-fifths of it in UCITS.
The headline numbers hide the real split. Ireland dominates exchange-traded funds and is strong in liquid UCITS and hedge strategies. Luxembourg dominates private markets, cross-border retail distribution and the new European long-term funds. The right domicile follows from what the fund holds and who invests, not from which country is bigger.
Private markets and distribution
RAIF and SCSp without fund approval, 54% of Europe's ELTIFs, three working languages, civil law.
ETFs and liquid strategies
Largest European ETF domicile, 24-hour QIAIF approval, US treaty access for US equities, common law in English.
The vehicles, side by side
| Purpose | Luxembourg | Ireland |
|---|---|---|
| Retail, EU passport | UCITS: SICAV or FCP | UCITS: ICAV, plc, unit trust, CCF |
| Regulated AIF for professionals | SIF, SICAR, Part II UCI | QIAIF (and RIAIF for retail) |
| AIF without fund-level approval | RAIF, managed by an authorised AIFM | No equivalent; reform of the 1907 LP under consultation |
| Partnership | SCS, SCSp (unregulated, by private deed) | ILP (regulated, 2020 reform) |
| Long-term retail access | ELTIF (about 160 funds) | ELTIF |
| Investor threshold for professional funds | EUR 100,000 or certification | EUR 100,000 for QIAIF |
How each country taxes the fund
| Luxembourg | Ireland | |
|---|---|---|
| Tax on the fund | Subscription tax: 0.05% a year, 0.01% for institutional classes, SIFs and most RAIFs; 0% for ETFs, ELTIFs, SICARs | None (gross roll-up) |
| Distributions to foreign investors | No withholding tax | No Irish tax with a non-resident declaration |
| Management fees | VAT exempt | VAT exempt |
| US dividends received | 30% US withholding | 15% under the US–Ireland treaty |
| Treaty access | Limited for SICAVs, minimal for FCPs; broader for SICARs | ICAV and plc access Ireland's 75+ treaties |
| Residents investing at home | Not relevant for most foreign promoters | Exit tax 38% from 2026 |
The US withholding difference alone is worth about 30 basis points a year on a US equity fund yielding 2%. It is why almost every European US-equity ETF is Irish, and why Luxembourg rarely wins that mandate.
For a US equity ETF, Ireland is not a preference, it is arithmetic. For a private equity fund with European LPs, Luxembourg is the market standard.
Speed and supervision
- Luxembourg RAIF and SCSp. No CSSF approval for the fund. A RAIF needs an authorised AIFM and a notarial or private deed, and is registered within 20 working days; an SCSp is formed by private deed.
- Ireland QIAIF and ILP. Central Bank authorisation within 24 hours under the fast track, once all service providers are approved; full set-up typically six to twelve weeks.
- UCITS, SIF, Part II. Regulator approval in both countries; UCITS usually take three to six months.
- Fees. CSSF fees apply to supervised funds (a draft regulation would raise them by about 22%); RAIFs pay none. The Irish Central Bank levies at least EUR 8,734 a year per fund.
- AIFMD II. Applies in both since spring 2026: loan origination rules, liquidity tools and delegation disclosure. Luxembourg also requires two full-time EU-resident conducting officers per manager.
Luxembourg or Ireland for your fund?
Five questions. The picker is honest: it says Ireland when Ireland wins.
Luxembourg or Ireland for your fund?
Five questions. You get the domicile, the likely vehicle and the reasons.
What sits around a Luxembourg fund
A fund rarely stands alone. Private markets funds in Luxembourg invest through SPVs and holding companies, often in Luxembourg or the Netherlands, and those need their own directors, accounts and substance. Co-investment vehicles and feeder funds sit next to them.
US withholding at 15% instead of 30% decides US equity funds.
RAIF and SCSp launch without fund approval; 54% of ELTIFs.
Either works; distribution and team decide.
AIFMD II and UCITS apply in both; the vehicles and taxes differ.