Luxembourg created the SARL-S (Société à Responsabilité Limitée Simplifiée) in 2017 with a clear purpose: give individual entrepreneurs a fast, affordable way to incorporate without putting up €12,000 in share capital. You can start with as little as €1, skip the notary, and have a functioning legal entity registered with the RCS within days. That accessibility has made the SARL-S one of the most talked-about business structures in the Grand Duchy.
But accessibility and simplicity are not the same thing. Behind the low capital requirement sit real regulatory obligations, growth limitations, and strategic trade-offs that catch first-time founders off guard. At Financial Services Luxembourg, we walk entrepreneurs through every stage of SARL-S formation and business incorporation so they can make informed decisions rather than regret hasty ones.
What Exactly Is a SARL-S and Who Is It Designed For?
A SARL-S is a simplified version of Luxembourg’s standard private limited liability company (SARL). It was introduced by the law of 23 July 2016, which came into force on 16 January 2017, specifically to lower the barrier for micro-businesses and solo entrepreneurs. The idea was borrowed from similar structures in France (EURL) and Germany (UG haftungsbeschränkt), where reduced-capital vehicles had already proven popular.
In practical terms, the SARL-S differs from a standard SARL on a handful of key points. Share capital can range from €1 to €12,000 (once equity exceeds that threshold, you must convert to a standard SARL). Only natural persons can be shareholders, and no single individual may hold shares in more than one SARL-S at a time. Formation does not require a notarial deed; a simple private document (acte sous seing privé) is sufficient, which trims both cost and timeline.
Feature
SARL-S
Standard SARL
Minimum capital
€1
€12,000
Shareholders
1–100 (natural persons only)
1–100 (natural or legal persons)
Notary required
No (private deed)
Yes (notarial deed)
Legal reserve
5% of net profit until reserve = €12,000
5% of net profit until reserve = 10% of capital
Conversion obligation
Must convert to SARL when equity > €12,000
N/A
Eligible activities
Commercial, craft, intellectual
All lawful activities
“I see it every quarter: a founder picks the SARL-S because the €1 capital looks irresistible. Twelve months later, they land their first investor, and suddenly the whole structure has to be unwound. Notary fees, new RCS filings, updated bank documentation, weeks of lost momentum. Had they started with a standard SARL at €12,000, the investor could have come in with a simple share transfer. The SARL-S saves money on day one, but it can cost you three times as much on day three hundred.”
— Mickaël LOC, Managing Director, Financial Services Luxembourg
How to Incorporate a SARL-S in Luxembourg: Step by Step
Formation of a SARL-S follows a lighter procedure than a standard SARL, but it still involves several regulatory touchpoints. Here is the sequence we follow with our clients.
Define Your Business Activity and Check Eligibility
Not every activity qualifies for a SARL-S. You need to confirm that your planned business falls within the scope of commercial, craft, or liberal-profession activities permitted under the autorisation d’établissement framework. If your manager lacks the required professional qualifications or integrity criteria, the Ministry of Economy will refuse the business permit regardless of the corporate form you choose.
Reserve Your Company Name
Submit a name availability request electronically to the Luxembourg Business Registers (LBR). Every company name must be unique. We recommend preparing two or three alternatives in case your first choice is already taken. Keep in mind that the name must include the suffix “SARL-S” or “Société à responsabilité limitée simplifiée” in all official documents.
Draft the Articles of Association
Because a notarial deed is not required, the statutes can be drawn up as a private document. They must specify the company name, registered office address, corporate purpose, duration, amount of share capital, number and value of shares, and the identity of the manager(s). While skipping the notary saves money, it also means there is no automatic legal review of your statutes. We always have the document reviewed to catch drafting errors that could create problems later.
Deposit Share Capital and Open a Bank Account
Even at €1, you must deposit the subscribed share capital in a bank account opened in the name of the company in formation. The bank issues a certificate of deposit (attestation de blocage). In practice, most Luxembourg banks require a more substantial conversation than a one-euro deposit might suggest. They will ask for a business plan, KYC documentation (certified passport copies, proof of address, source-of-funds narrative), and a clear description of the intended activity.
“Founders assume a €1 company means a simple bank account opening. It is the opposite. When a bank sees a SARL-S with minimal capital, the compliance team asks harder questions, not fewer. They want a solid business plan, twelve-month cash-flow projections, and a clear source-of-funds story. Without that file ready before you walk in, the account opening stalls and your freshly registered SARL-S sits idle for weeks.”
— Mickaël LOC, Managing Director, Fiduciaire Comptable Financial Services Accountant Luxembourg
Register with the RCS and Obtain Your Business Permit
Once the articles of association are signed, file them with the Trade and Companies Register (RCS) for publication in the Recueil Électronique des Sociétés et Associations (RESA). At this point, your SARL-S gains legal personality. In parallel, apply for the autorisation d’établissement through the MyGuichet.lu portal. Processing usually takes five to fifteen working days depending on the activity.
Register for Tax and Social Security
After RCS registration, the company must register with the Administration des Contributions Directes (ACD) for corporate income tax and with the Administration de l’Enregistrement, des Domaines et de la TVA (AED) for VAT. If you plan to employ staff, registration with the Centre Commun de la Sécurité Sociale (CCSS) is also mandatory. You must also file a beneficial ownership declaration with the RBE within one month of registration.
What Does It Actually Cost to Set Up a SARL-S?
The €1 capital figure gets all the attention, but the real cost of incorporating a SARL-S goes well beyond the share capital deposit. You should budget for RCS registration fees (around €75 for the filing plus €14 for RESA publication), the autorisation d’établissement application fee (€50), professional fees for drafting the articles of association and handling administrative filings, and the cost of a registered office or domiciliation service if you do not have your own premises in Luxembourg.
All in, the typical cost for a professionally managed SARL-S formation sits between €1,500 and €3,000, well below the €3,000 to €8,000 range for a standard SARL or SA where notary fees add a significant layer. At Financial Services, we bundle formation, domiciliation, and initial compliance filings into a single package so founders know exactly what they are paying before they commit.
Tax Treatment of a Luxembourg SARL-S
Both types of entity carry the same corporate income tax, municipal business tax, and net wealth tax rules. For companies based in Luxembourg City, the combined effective corporate tax rate currently sits at approximately 23.87 %. Businesses with taxable income below €175,000 benefit from a reduced CIT rate of 14 %, which can make a real difference for early-stage ventures.
VAT registration is mandatory for any entity carrying out economic activities. The standard rate is 17 %, with reduced rates of 14 %, 8 %, and 3 % applying to certain goods and services. If your annual turnover stays below €35,000, you may qualify for the VAT franchise scheme, which simplifies your obligations significantly.
One mechanism unique to the SARL-S is the mandatory legal reserve. Five percent of annual net profits must be set aside until the reserve reaches €12,000. Once that threshold is hit, the company’s equity will have reached the level of a standard SARL, and Luxembourg law requires you to convert.
“People hear SARL-S and think tax advantage. But the SARL-S pays exactly the same corporate tax as a standard SARL. There is no special rate, no hidden exemption. What Luxembourg actually gives you is not a lower tax bill but a predictable, stable regulatory environment where your business structure will be respected by courts, banks, and counterparties across Europe for decades. That legal certainty is the real competitive edge, not the €1 share capital.”
— Mickaël LOC, Managing Director, Financial Services Luxembourg
When the SARL-S Is Not the Right Choice
The SARL-S works well for freelancers, consultants, and micro-businesses testing a market. But it has hard limits that can become obstacles as a company grows.
You cannot bring in a corporate shareholder. Only natural persons can hold shares in a SARL-S. If an investment fund, a family office, or another company wants to participate in your capital, you will need to convert first.
Credibility with banks and institutional partners can be an issue. A company capitalised at €1 sends a particular signal. Some banks apply stricter due diligence, and commercial partners may ask questions about the company’s financial standing. We have seen clients lose contracts because a prospective partner viewed the minimal capitalisation as a red flag.
Mandatory conversion creates a cliff. Once equity exceeds €12,000, you must convert to a standard SARL, which means notarial fees, RCS filing costs, and administrative downtime. If you anticipate rapid growth, starting with a SARL at €12,000 avoids that disruption entirely.
One SARL-S per person. Luxembourg law prevents any individual from holding shares in more than one SARL-S simultaneously. Serial entrepreneurs who want to operate multiple ventures need a different structure.
“A SARL-S capitalised at one euro tells a bank credit committee exactly one thing: the founder has not yet put skin in the game. That does not mean the bank will refuse you, but it does mean the burden of proof shifts entirely onto the quality of your file. I tell every SARL-S client the same thing: prepare your dossier as if you were applying for a loan, even if you only want a current account. Business plan, governance, projected cash flows, proof of substance. If the file is solid, the account opens. If it is not, no corporate form will save you.”
— Mickaël LOC, Managing Director, Fiduciaire Comptable Financial Services Accountant Luxembourg
Ongoing Compliance After Incorporation
A SARL-S is subject to the same annual compliance obligations as any Luxembourg commercial company. Annual accounts must be filed with the LBR via the eCDF platform. Corporate income tax returns must be submitted to the ACD. VAT declarations go to the AED on a monthly or quarterly basis depending on turnover. If you have employees, payroll declarations to the CCSS and compliance with Inspection du Travail et des Mines (ITM) rules are also in the mix.
The beneficial ownership register (RBE) must be kept up to date whenever there is a change in the shareholder or ultimate beneficial owner structure. Annual accounts must follow LuxGAAP standards, and if your SARL-S exceeds certain size thresholds (balance sheet total above €4.4 million, net turnover above €8.8 million, or more than 50 employees), an audit becomes mandatory.
At Financial Services, we take these recurring tasks off our clients’ desks entirely. Every client works with a named advisor who knows their file, prepares their filings on time, and flags potential issues before they become penalties.
Why Work with Financial Services Luxembourg?
Financial Services Luxembourg is a licensed fiduciary and domiciliary agent operating under a valid autorisation d’établissement issued by the Ministry of Economy. Our managing director, Mickaël LOC, brings over 17 years of hands-on experience in corporate finance, holding structures, and international advisory. As featured in Le Figaro, we are recognised as a trusted partner for both company creation and ongoing accounting in the Grand Duchy.
From a SARL-S to a standard SARL, an SA, or a SOPARFI holding vehicle, we handle the full lifecycle: structuring advice, formation, domiciliation, bookkeeping, eCDF filing, VAT and corporate tax compliance, payroll, and CFO advisory. We operate in English, French, German, and Luxembourgish.
Ready to move forward? Visit financialservices.lu or contact us directly at mickael.loc@financialservices.lu / +352 661 198 544. We are at 142 Boulevard de la Pétrusse, Luxembourg-Gare, Monday to Friday, 08:00 to 20:00.
About the Author
Mickaël LOC is the Managing Director of Financial Services Luxembourg (financialservices.lu), a licensed fiduciary and domiciliary agent specialising in company formation, corporate accounting, and international advisory. With over 17 years of experience in Luxembourg’s corporate services sector, Mickaël advises entrepreneurs, family offices, and international groups on structuring, compliance, and operational efficiency. Financial Services Luxembourg has been recognised by Le Figaro as a trusted expert in company creation and accounting in the Grand Duchy.
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