Luxembourg SPF: A Sophisticated Vehicle for Private Wealth Management
For almost two decades, Luxembourg's société de gestion de patrimoine familial has offered families a narrow but well-defined wrapper for holding financial assets, exempt from Luxembourg corporate taxes in exchange for strict limits on what it may do. Since the reform that took effect on 1 January 2025, those limits are policed with real penalties, which makes understanding them a governance question as much as a tax one.
What an SPF is
The SPF was created by the Law of 11 May 2007 and has been amended several times since, most recently by a law of 20 December 2024. It is not a separate legal form but a tax status adopted by an ordinary Luxembourg company: a société à responsabilité limitée (S.à r.l.), a société anonyme (S.A.), a société en commandite par actions (S.C.A.), or a cooperative organised as a société anonyme. Its articles must state that it is subject to the SPF law, and, since 1 January 2025, its name must include the words "société de gestion de patrimoine familial" or "SPF".
The general company-law rules on capital therefore apply. An S.à r.l. requires a minimum share capital of €12,000; an S.A. requires €30,000. (Older market material sometimes quotes €31,000 for the S.A.; that figure predates the 2016 modernisation of Luxembourg company law.)
The defining feature is the statutory purpose. An SPF's exclusive object is the acquisition, holding, management and realisation of financial assets, with no commercial activity. "Financial assets" carries a technical meaning: financial instruments within the meaning of the Law of 5 August 2005 on financial collateral arrangements, together with cash and assets of any kind held in an account. In practice, that covers listed and unlisted shares, bonds, fund units, deposits and comparable instruments.
Who may hold it
The SPF is reserved for private wealth. The law admits three categories of investor:
individuals managing their private wealth;
private wealth management entities acting exclusively in the interest of the private wealth of one or more individuals, a category generally understood to include trusts, foundations and similar vehicles;
intermediaries acting on behalf of investors in either of the first two categories.
Commercial companies and operating groups cannot be shareholders. Each investor must confirm their eligibility in writing to the domiciliary agent or the managers, and SPF securities may not be offered to the public or listed on a stock exchange. Eligibility is a continuing condition, not a test applied once at incorporation, so it has to be checked again whenever shares change hands, whether by sale, gift or inheritance.
What it may and may not do
The restrictions are where most of the practical difficulty lies.
No commercial activity. The SPF may manage a portfolio, but it may not trade, provide services or run a business. Very frequent trading carries a risk of being characterised as commercial activity, so the line between active portfolio management and dealing deserves attention.
No interest-bearing loans. An SPF may not grant remunerated loans, including to companies in which it holds a participation. The Luxembourg direct tax administration (ACD) confirms one narrow exception: on an ancillary basis and entirely free of charge, the SPF may make an advance to such a company or guarantee its commitments. The often-repeated statement that an SPF "cannot lend at all" is therefore slightly too broad; an SPF cannot lend for a return.
No direct real estate. An SPF may not acquire real property directly. Since 1 July 2021, it may not hold real estate through tax-transparent partnerships or through investment funds organised as fonds communs de placement either. It may, however, hold shares in capital companies that own property.
Participations without management. An SPF may hold shares in other companies, including operating companies, provided it does not interfere in their management. A family that wants its holding vehicle to direct the strategy of a trading group is describing a different structure.
Taxation
At the level of the company, the regime is simple. An SPF is exempt from Luxembourg corporate income tax, municipal business tax and net wealth tax. In their place, it pays an annual subscription tax (taxe d'abonnement) of 0.25%, subject to a minimum of €1,000 (raised from €100 by the 2024 reform) and a maximum of €125,000. The tax is declared and paid quarterly.
The base consists of paid-up share capital and share premium, plus any portion of debt that exceeds eight times the paid-up capital and share premium. Since 2025, debt is measured on the first day of the financial year rather than on 1 January, and share premium is always included. A structure financed mainly by shareholder loans therefore needs to keep an eye on the eight-to-one ratio.
On distributions, dividends paid by an SPF are not subject to Luxembourg withholding tax. A non-resident shareholder is not taxed in Luxembourg on a gain from selling SPF shares. How a shareholder is taxed on dividends and gains at home is a separate question, governed by the law of their country of residence, which may include controlled-foreign-company or similar rules. Luxembourg-resident shareholders are taxed on SPF dividends and cannot apply the 50% partial exemption that applies to dividends from fully taxable companies.
Income received by the SPF may suffer withholding tax in the source country. The SPF cannot rely on the EU Parent-Subsidiary Directive, and practitioners have long treated it as unable to rely on Luxembourg's double tax treaties. Since a circular of 4 June 2024 (L.I.R. n° 159/2), the ACD has issued SPFs with certificates of residence based on domestic law. That certificate is useful, but whether a foreign tax authority grants treaty relief on the strength of it is a matter for that authority and the relevant treaty. It should not be assumed. Because the SPF is generally not treated as a VAT taxable person, VAT charged on its service providers' fees is usually a cost.
Governance, supervision and the 2024 reform
Supervision of SPFs lies with the Administration de l'enregistrement, des domaines et de la TVA (AED), not with the CSSF: the SPF is not a regulated investment fund. Each year, the SPF must file a certification with the AED by 31 July, electronically since 2025.
The law of 20 December 2024 changed the consequences of getting things wrong. For administrative failures, such as omitting the SPF designation or filing late, the AED may impose fines of up to half the annual subscription tax, or up to €10,000 where that tax cannot be determined. For serious breaches, which include ineligible investors, departing from the exclusive purpose, interfering in the management of participations and holding real estate, fines reach €250,000.
The AED may also order the SPF to remedy a breach within six months. If it does not, the AED director may permanently withdraw the SPF regime after inviting the company's observations. Withdrawal takes effect from the later of the first recorded breach and 1 January of the fourth year before the decision, and the company then falls under the ordinary tax regime. A company that loses the status and continues to call itself an SPF more than a month after notification faces fines of up to €5,000 per month. The sanctions apply to breaches occurring after the law entered into force in late December 2024.
SPF or ordinary holding company?
The comparison is usually with a fully taxable Luxembourg holding company, often called a SOPARFI. The two answer different questions.
A SOPARFI pays corporate taxes at an aggregate rate of 23.87% in Luxembourg City (tax year 2025), but qualifying dividends and gains can be exempt under the participation exemption. That generally requires a holding of at least 10%, or an acquisition cost of at least €1.2 million for dividends (€6 million for gains), held for at least twelve months. In return, a SOPARFI has full access to Luxembourg's treaty network and to the EU directives. It may lend at interest, hold real estate, accept corporate shareholders and play an active role in its subsidiaries. Its outbound dividends attract 15% withholding tax unless an exemption or treaty applies.
The SPF is the cleaner instrument for a passive, diversified portfolio held by a family. The SOPARFI is the more flexible one where there are operating businesses, real estate, financing within the group or a need for treaty protection.
A fictional illustration
The family and figures below are invented for illustration.
After selling her engineering business, Elena Marwick holds a portfolio of listed equities, bonds and fund units. She wants it under a single, well-governed structure that her three adult children, who live in three different countries, will one day share. Her advisers propose an S.à r.l. with SPF status, with paid-up capital of €500,000, share premium of €9.5 million and a shareholder loan of €30 million.
The subscription tax base is €10 million (capital plus premium). Eight times that figure is €80 million, so the €30 million loan adds nothing to the base. The annual tax is 0.25% × €10 million = €25,000.
Three later proposals test the structure. First, a son asks the SPF to lend €2 million at 6% to his start-up. An interest-bearing loan is prohibited, and even an interest-free advance would be permissible only as an ancillary measure to a company in which the SPF holds a participation. Second, Elena considers buying a flat in Lisbon through the SPF. Direct ownership is excluded, and holding it through a property company raises separate questions in the country where the flat is located and in each family member's country of residence. Third, a daughter proposes to hold her future shares through her own trading company. As a commercial company, it would not be an eligible investor. Each proposal could have triggered the post-2024 penalty regime.
Questions to ask before choosing an SPF
Is the wealth to be held genuinely financial and essentially passive?
Will every current and future shareholder, including heirs and any trust or foundation, be an eligible investor?
Does the family need the vehicle to lend at interest, hold property or direct operating companies?
How will each shareholder's country of residence tax distributions, gains and, potentially, the SPF's undistributed income?
Does the portfolio rely on reduced foreign withholding tax that might require treaty relief?
Holding an SPF confers no right of residence in Luxembourg or elsewhere. Immigration and tax residence are separate matters, with their own rules.
A short practical checklist
Confirm investor eligibility at incorporation and on every transfer.
Include "SPF" or "société de gestion de patrimoine familial" in the company name.
Keep assets within the statutory definition of financial assets: no direct real estate and no transparent property vehicles.
Make no interest-bearing loans and do not take part in managing participations.
Monitor the eight-to-one debt ratio on the first day of each financial year.
File quarterly subscription tax returns and the annual certification on time.
Review the shareholders' home-country tax position whenever circumstances change.
This article is general information, not legal or tax advice.
Sources
Administration de l'enregistrement, des domaines et de la TVA (AED). Circulaire n° 823 – SPF, 27 December 2024. https://pfi.public.lu/content/dam/pfi/pdf/circulaires/taxe-dabonnement/circulaire-n-823-spf.pdf
Administration des contributions directes (ACD). SPF – Société de gestion de patrimoine familial, last updated 1 July 2026. https://impotsdirects.public.lu/fr/az/s/spf.html
Administration des contributions directes (ACD). Circulaire L.I.R. n° 159/2 – Certificats de résidence à émettre au profit des SPF sur la base du droit interne, 4 June 2024. https://impotsdirects.public.lu/dam-assets/fr/legislation/legi24/lir-159-2-du-462024.pdf
Guichet.lu (Government of Luxembourg). Taxe d'abonnement, last modified 27 July 2026. https://guichet.public.lu/fr/entreprises/fiscalite/declaration/instruments-financiers/taxe-abonnement.html
Chambre des Députés. Projet de loi n° 8414 – dossier complet (incl. amendments to the SPF law), December 2024. https://wdocs-pub.chd.lu/docs/compilation/docpa/pdf/8414_Dossier_Complet.pdf
Luxembourg Trade & Invest / House of Entrepreneurship. How to Set Up a Business in Luxembourg – Legal Form, July 2020. https://luxembourgtradeandinvest.com/getmedia/d131ffd0-198a-42d4-bc97-d5fe8396b247/how-to-start-a-business-in-lux-2020-legal-form.pdf
PwC Worldwide Tax Summaries. Luxembourg – Corporate: Taxes on corporate income; Income determination; Withholding taxes, last reviewed 31 July 2026. https://taxsummaries.pwc.com/luxembourg/corporate/taxes-on-corporate-income
Mourant. Modernisation of the SPF tax regime: what you need to know, 21 March 2025. https://www.mourant.com/updates/modernisation-of-the-spf-tax-regime-what-you-need-to-know/
Harneys. Luxembourg société de gestion de patrimoine familial, 22 July 2024. https://www.harneys.com/insights/luxembourg-societe-de-gestion-de-patrimoine-familial/
Chevalier & Sciales (via Mondaq). Luxembourg SPF Residence Certificate: Key Tax Updates, 18 November 2024. https://www.mondaq.com/tax-authorities/1543230/luxembourg-spf-residence-certificate-key-tax-updates