Foreign companies regularly need a French business identifier before they can invoice a customer, employ a person, rent operational premises or answer a bank\u2019s compliance request. That does not automatically mean incorporating a French SAS or SARL. A company formed abroad may, depending on the reality of its French activity, register an establishment, a branch or another qualifying presence while keeping its original legal personality. The French identifier is then connected to the foreign legal entity and to the French establishment; it is not proof that a new French subsidiary exists.<\/p>\n
Three questions must be kept separate. First, does the company have a French establishment or an activity that requires a French registration? Second, which filing creates the SIREN and SIRET numbers, and which register or administration records them? Third, does the company also need a French VAT registration, an employer account with URSSAF (the body that collects social-security contributions), or an e-reporting process? A SIRET answers only part of that chain. The firm\u2019s French corporate law and company-formation service page<\/a> provides the broader context for a board planning its French presence. This guide is for foreign legal entities and their boards. It does not treat the separate situation of an individual moving to France, and it does not turn a French tax analysis into a registration shortcut.<\/p>\n The first practical mistake is to treat every French number as if it meant the same thing. The SIREN is the nine-digit identifier of a legal unit. The SIRET is the fourteen-digit identifier of an establishment: it combines the legal unit\u2019s nine-digit SIREN with a five-digit NIC, or \u201cNum\u00e9ro Interne de Classement\u201d, for that particular location. The official INSEE definition of the SIREN<\/a> and its definition of the SIRET<\/a> should be kept with the company\u2019s filing records. A company can therefore have one SIREN and several SIRET numbers if it operates several French establishments.<\/p>\n The SIRET is not itself a company form. It does not create an SAS, a SARL or a French subsidiary. It does not prove that the company has a permanent establishment for corporate-tax purposes, and it does not activate a VAT number. It identifies an establishment in the French statistical and administrative registers. The VAT number, usually beginning with \u201cFR\u201d and containing the SIREN, follows a separate tax procedure. The number shown on a bank form, a purchase order or an invoice must therefore be matched with the exact legal entity, establishment address and tax status rather than copied without verification.<\/p>\n The Registre du commerce et des soci\u00e9t\u00e9s, or RCS, is the commercial and companies register. It is handled by the competent greffe, meaning the registry office attached to the commercial court. A Kbis is an official extract showing information recorded for an entity or establishment in the RCS; it is not a synonym for the SIRET and it is not always the document that proves an entity recorded only in another register. The Registre national des entreprises, or RNE, is the wider national register. The Guichet unique, operated through the INPI business formalities service<\/a>, receives the electronic formalities and routes the information to the relevant bodies. SIRENE is the national register managed by INSEE for enterprises and establishments; its purpose and scope are explained in the official SIRENE information<\/a>.<\/p>\n The starting point is Article L. 123-1 of the French Commercial Code. Its first paragraph states: The distinction is reinforced by Article L. 210-6 of the Commercial Code, which provides that The RNE also matters in cases where the company does not have a traditional French permanent establishment. Article L. 123-36 of the Commercial Code includes Finally, the legal number and the public notice are different items. A change, opening or closure can be reflected in the RNE, RCS, SIRENE records and, where required, in the BODACC, the \u201cBulletin officiel des annonces civiles et commerciales\u201d. A counterparty may ask for a Kbis, an INSEE SIRENE notice, a SIRET certificate, a VAT certificate or a tax letter. Before responding, identify what the request is meant to prove: legal existence, French establishment, VAT status, authority to contract, or the identity of the beneficial owner. One document rarely proves all five points.<\/p>\n The central question is not whether the founder wants a SIRET. It is what the foreign company actually does in France. A branch or succursale is a French establishment without a separate legal personality. An agency or representative office may also require analysis when it has a real operational function. A warehouse, workshop, staffed sales office, customer-support centre or place from which contracts are habitually performed can be materially different from a purely preparatory liaison office. A French address on a website, by itself, is not a safe test in either direction.<\/p>\n Article L. 123-11 of the Commercial Code requires a legal person seeking registration to justify premises, and it refers to The Cour de cassation has adopted a practical approach to a foreign company\u2019s French activity. In its decision of 20 June 2017, no. 14-85.879, the criminal chamber stated: An earlier decision illustrates the risk of leaving an autonomous activity unrecorded. In its decision of 26 October 2004, no. 03-86.970, the criminal chamber described the conduct in these terms: The most useful classification for a foreign board is the following.<\/p>\n There are also cases where a foreign company has no French permanent establishment but still needs a French administrative record. It may have French employees, a French VAT obligation, a regulated activity, a taxable event or a reporting duty. Article L. 123-36 should be read with the precise formalities and tax instructions applicable to the activity. The Ministry of the Economy\u2019s guide to establishing a foreign company in France<\/a> distinguishes the liaison office, branch and subsidiary and explains why the Guichet unique can be relevant even when the foreign company is not incorporating a French subsidiary.<\/p>\n The decision should therefore be based on four factual tests: where people work, where assets or stock are held, where contracts are negotiated or performed, and which French obligations have already arisen. Add a fifth test for regulated sectors: a financial, health, transport, food, construction or employment activity may require an authorisation or registration that has nothing to do with the SIRET itself. A French identifier cannot cure the absence of a required licence, and the absence of a SIRET cannot be used as evidence that no French activity exists.<\/p>\n Once the facts justify a French establishment or another qualifying registration, use the Guichet unique rather than sending disconnected requests to several administrations. Article L. 123-33 of the Commercial Code states: The formalities are routed from one electronic dossier to the bodies that need the information. Article R. 123-1 describes a single dossier and includes For a foreign legal person, Article R. 123-54 requires information about the foreign entity and its registration abroad. The rule refers to the public register\u2019s The minimum preparation list should usually cover the following items, with the exact list adapted to the company and the activity:<\/p>\n The filing should not use a generic \u201cFrench office\u201d description if the company is actually opening a branch, employing staff or storing inventory. The description should state what the establishment does and what it does not do. That precision helps separate the commercial-registration question from the permanent-establishment question. It also gives the tax administration, social-security bodies and a bank a common factual record.<\/p>\n Article R. 123-77 confirms that an application or document deposit is made through the single body: After submission, save the dossier number, the receipt, every message requesting a correction and the final registration evidence. Article R. 123-6 explains that the electronic receipt identifies the recipients and authorities and informs the declarant of decisions or requests for additional documents. The current wording is on L\u00e9gifrance, Article R. 123-6<\/a>. A foreign founder should nominate one person to monitor the portal and one lawyer or compliance lead to answer substantive requests. A request for a home-country extract, translation or premises proof should be answered with one dated and indexed package, not with a series of inconsistent uploads.<\/p>\n Do not file a second, slightly different establishment merely because the first SIRET has not appeared quickly. A duplicate can create two addresses, two commencement dates or two activity descriptions that later need to be reconciled. First identify whether the delay concerns INPI validation, a request from the greffe, an INSEE allocation, a tax registration or a missing document. The INPI explanation of the Guichet unique workflow<\/a> describes the transition from the pre-SIREN stage through validation, the final SIREN and transmission to the relevant administrations. The exact status shown on the portal should drive the next response.<\/p>\n The first post-registration task is to create a reconciliation table. Record the foreign legal name and registration number, the French SIREN, every French SIRET, the establishment address, the activity code, the RCS or RNE evidence, the VAT number if assigned, and the relevant tax service. Give that table to the bank, accountant, payroll provider and invoicing team. A SIRET may be assigned before a VAT number is activated, and a VAT number may be needed for a foreign company without a conventional branch. Those are different administrative events.<\/p>\n For VAT, start with the official French tax administration guidance on VAT registration<\/a> and the page for foreign companies<\/a>. The company may need to register because it makes taxable supplies in France, imports goods, holds stock, sells through a particular channel or must report transactions under the applicable rules. A company established in another European Union state and a company established outside the European Union do not always follow the same representative and filing rules. In particular, the tax administration may require a fiscal representative for a non-EU company that is liable for French VAT, subject to the applicable exceptions and treaty or statutory rules. Confirm the responsible tax service, often the Service des imp\u00f4ts des entreprises \u00e9trang\u00e8res, or SIEE, and the document list before invoicing.<\/p>\n The SIRET does not replace the VAT number. It also does not make every invoice subject to French VAT. A customer may need to apply reverse charge, a transaction may be outside French VAT, or a specific exemption may apply. The invoice should match the legal entity that made the supply, the establishment involved, the VAT place-of-supply analysis and the VAT number actually issued. If the French identifier is used on an invoice while the VAT registration is pending, explain the status to the customer and obtain tax advice before treating a number as proof of VAT entitlement.<\/p>\n The French electronic-invoicing and e-reporting reform adds a time-sensitive layer. The English guidance from the French tax administration on e-reporting for foreign companies without a permanent establishment<\/a> addresses foreign businesses that may have French VAT reporting obligations even without a French permanent establishment. The timetable announced by the administration distinguishes the first implementation date of 1 September 2026 for large and intermediate-sized businesses from the later 1 September 2027 date for small and medium-sized businesses, subject to the legal scope of the transactions and the company\u2019s category. The implementation must be tested against the company\u2019s turnover, customer type, VAT liability and invoicing flows. A SIRET is a useful identifier in that project, but it is not the e-reporting analysis.<\/p>\n If the company hires its first person in France, review the employer route separately. URSSAF is the French body that collects most social-security contributions; an establishment number is not an employer account, a payroll registration or a determination of the employee\u2019s social-security legislation. The payroll provider needs the exact French establishment, the employer\u2019s legal entity, the employee\u2019s place of work and the applicable employment status. A foreign company that sends an employee temporarily to France may also need an A1 certificate or another cross-border social-security document. A company that directly employs someone working in France may need a much broader employer setup. Do not present the SIRET as a substitute for those checks.<\/p>\n Corporate tax and permanent-establishment analysis must run in parallel. The French tax administration\u2019s page on a foreign company carrying on activity in France<\/a> is a useful starting point, but the facts of the group, treaty residence, authority of French staff, premises and revenue-producing functions still matter. The same address can be a simple correspondence address in one business model and a tax-sensitive operating location in another. The company should keep minutes, contracts, delegation documents, staff roles and premises descriptions aligned with the tax position it adopts.<\/p>\n For an establishment registered in the RCS, the Kbis or equivalent registry extract should be checked against the SIRET and the actual activity. For an entity recorded through the RNE or another route, use the official Annuaire des entreprises, the INSEE evidence and the applicable filing record. BODACC notices may be relevant for creation, modification, insolvency or closure events. A bank or customer that asks for a \u201cKbis\u201d may be using the word generically; give it the document that proves the requested fact and explain the difference if the foreign company is not in the same registry category as a French subsidiary.<\/p>\n The company must also maintain the establishment record. Article L. 123-33 governs the electronic route for amendments, and Article R. 123-75 contains the specific rule that When INPI, the greffe, INSEE or the tax administration says that the file is incomplete, use the following response sequence:<\/p>\n A formal refusal can sometimes be challenged or corrected, but the remedy depends on who refused the file and why. Article L. 123-3 allows the judge to order a registered person to make the required registration or amendment; the provision states that The most frequent operational errors are avoidable: using the parent\u2019s foreign number in a French establishment field, describing a branch as a subsidiary, filing an untranslated corporate extract, omitting the beneficial-owner chain, giving a domiciliation address with no evidence of the right to use it, or treating an assigned SIRET as proof that VAT is active. Correct those errors before the company sends the identifier to customers, banks, payroll providers or electronic-reporting software.<\/p>\n A foreign company can often obtain a French SIRET without creating a French subsidiary, but the correct route follows the real French activity. A branch or qualifying establishment may be registered while the foreign parent keeps its original legal personality. A company with no permanent establishment may still need an RNE record, a VAT registration, an employer process or e-reporting compliance. The number itself does not answer those questions.<\/p>\n Before filing, document the French premises, people, contracts, stock, services and start date. Decide whether the presence is a liaison office, a branch, an establishment or a French subsidiary. Prepare the home-country registry evidence, constitutional documents, corporate authority, beneficial-owner information, address proof, translation and authentication in one coherent file. After filing, preserve the Guichet receipt and separate the SIREN, SIRET, RCS, RNE, SIRENE, Kbis and VAT evidence. After assignment, reconcile the number with tax, URSSAF, payroll, invoicing and e-reporting obligations. When the facts change, update or close the establishment within the applicable time limit. This process gives a foreign board a usable French identifier without pretending that registration alone resolves tax, employment or regulatory exposure.<\/p>\n Book a telephone consultation within 48 hours with a lawyer from our firm.<\/p>\n We can review your French SIRET, INPI, VAT and e-reporting route and identify the documents still needed.<\/p>\nI. Can a foreign company obtain a French SIRET without creating a French subsidiary?<\/h2>\n
A. What do SIREN, SIRET, RCS, RNE and SIRENE actually identify?<\/h3>\n
\u00ab I.-Il est tenu un registre du commerce et des soci\u00e9t\u00e9s auquel sont immatricul\u00e9s, sur leur d\u00e9claration: \u00bb<\/q> The same provision expressly includes, in point 3\u00b0,
\u00ab Les soci\u00e9t\u00e9s commerciales dont le si\u00e8ge est situ\u00e9 hors d’un d\u00e9partement fran\u00e7ais et qui ont un \u00e9tablissement dans l’un de ces d\u00e9partements \u00bb<\/q>. The current text is available on L\u00e9gifrance, Article L. 123-1<\/a>. This is the legal bridge between a foreign commercial company and registration in France when it opens a qualifying establishment. It does not say that every foreign company with a French customer must create a French subsidiary.<\/p>\n
\u00ab Les soci\u00e9t\u00e9s commerciales jouissent de la personnalit\u00e9 morale \u00e0 dater de leur immatriculation au registre du commerce et des soci\u00e9t\u00e9s. \u00bb<\/q> That rule concerns the legal personality of French commercial companies. A foreign parent that registers a French establishment does not thereby acquire a second legal personality. The parent remains the contracting entity, subject to the consequences of the branch or establishment it operates. The exact text is on L\u00e9gifrance, Article L. 210-6<\/a>.<\/p>\n
\u00ab 6\u00b0 Les entreprises \u00e9trang\u00e8res sans \u00e9tablissement stable en France. \u00bb<\/q> The provision is available through L\u00e9gifrance, Article L. 123-36<\/a>. That wording is a warning against a simplistic rule that \u201cno permanent establishment\u201d always means \u201cno French administrative identity\u201d. A foreign company can have French formalities, VAT or reporting obligations even when the tax analysis does not classify its activity as a permanent establishment. The filing route and the tax route must be analysed together but not confused.<\/p>\n
B. Which French presence creates the right to an establishment number?<\/h3>\n
\u00ab l’agence, la succursale ou la repr\u00e9sentation \u00e9tablie sur le territoire fran\u00e7ais \u00bb<\/q> where the head office is abroad. The current wording is on L\u00e9gifrance, Article L. 123-11<\/a>. The evidence can include a commercial lease, a domiciliation agreement, a document proving the right to occupy the premises, or a coherent explanation of the establishment\u2019s function. A domiciliation address cannot be used to disguise a materially different operation. If the filing says \u201cadministrative address\u201d while the company stores stock, receives customers and employs staff there, the description may invite a correction request or a deeper tax review.<\/p>\n
\u00ab une soci\u00e9t\u00e9 commerciale immatricul\u00e9e dans un pays \u00e9tranger est tenue de s’immatriculer au registre du commerce et des soci\u00e9t\u00e9s fran\u00e7ais \u00bb<\/q> when it opens an establishment in a French department, on the basis of Articles L. 123-1, I, 3\u00b0, L. 123-11 and R. 123-35 of the Commercial Code. The decision is available on the official Cour de cassation record, no. 14-85.879<\/a>. The useful point for a board is not merely the citation: registering in the home country does not replace French registration for a French establishment.<\/p>\n
\u00ab Holger X… a exerc\u00e9 en France, une activit\u00e9 r\u00e9elle et permanente de transport routier de marchandises sans avoir requis l’immatriculation \u00bb<\/q> of the enterprise he directed. The exact decision is published by the Cour de cassation, no. 03-86.970<\/a>. That case is not a universal formula for every cross-border sale. It does show why the company\u2019s operational facts, not its preferred label, control the registration risk.<\/p>\n
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II. How should a foreign founder file for the French number and protect the next steps?<\/h2>\n
A. What should be filed through the INPI Guichet unique?<\/h3>\n
\u00ab Ce dossier est d\u00e9pos\u00e9 par voie \u00e9lectronique aupr\u00e8s d’un organisme unique d\u00e9sign\u00e9 \u00e0 cet effet. \u00bb<\/q> The current article, including the rule that a complete and regular filing is treated as the declaration, is available on L\u00e9gifrance, Article L. 123-33<\/a>. The official business formalities portal<\/a> also explains that the system applies to foreign businesses developing activity in France.<\/p>\n
\u00ab y compris les informations relatives au b\u00e9n\u00e9ficiaire effectif \u00bb<\/q>. That reference to the beneficial owner is important for foreign groups: an extract from the parent\u2019s home register is not always enough if the chain of ownership, control or voting rights is not clear. Read the current text on L\u00e9gifrance, Article R. 123-1<\/a> and prepare the ownership chart before the filing is started.<\/p>\n
\u00ab num\u00e9ro et lieu d’immatriculation dans un registre public \u00bb<\/q>. The full provision is on L\u00e9gifrance, Article R. 123-54<\/a>. A recent certified extract from the home register, the company\u2019s constitutional documents and the resolution approving the French establishment should be assembled in a consistent evidence pack. If the foreign country uses a different legal vocabulary, add an English explanation for the filing team and a French translation where the authority requires it.<\/p>\n
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\u00ab Toute demande d’inscription ou tout d\u00e9p\u00f4t d’acte ou de pi\u00e8ce au registre du commerce et des soci\u00e9t\u00e9s est effectu\u00e9 par l’interm\u00e9diaire de l’organisme unique \u00bb<\/q>. The provision is available on L\u00e9gifrance, Article R. 123-77<\/a>. The same article addresses electronic copies and signatures in the registration process. Article R. 123-5 also governs electronic signing and provides that, for the creation or modification of a business formalities file, a simple electronic signature can be used in the circumstances set out by the code. Its current text is on L\u00e9gifrance, Article R. 123-5<\/a>. Always follow the signature level displayed by the portal for the specific formalities rather than assuming that a scanned handwritten signature is sufficient.<\/p>\n
B. What must be done after the SIRET is assigned?<\/h3>\n
\u00ab La radiation de l’immatriculation secondaire de toute personne morale est demand\u00e9e dans le mois de la cessation d’activit\u00e9 dans le ressort du tribunal. \u00bb<\/q> The exact provision is on L\u00e9gifrance, Article R. 123-75<\/a>. When an office closes, staff leave, a branch stops trading or the company changes the establishment\u2019s activity, update the record promptly. Leaving a dormant SIRET active can lead to inconsistent tax, payroll, bank and public-register information.<\/p>\n
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\u00ab le juge peut enjoindre, le cas \u00e9ch\u00e9ant sous astreinte \u00bb<\/q> the person to make the required formalities. Read the current text on L\u00e9gifrance, Article L. 123-3<\/a>. That legal route is not a substitute for answering a routine missing-document request, but it explains why a carefully documented refusal should not simply be abandoned.<\/p>\n
Conclusion<\/h2>\n
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