You live in London, New York or Dubai, and an official-looking letter from the French tax administration has just landed on your desk or in the online mailbox of your French company. It announces a vérification de comptabilité, the full on-site audit of your company’s books. Your French accountant forwards the letter with a worried note, your co-founder asks whether the company’s bank account could be frozen, and you wonder whether you must fly to Paris immediately. This article answers those questions in order. It is written for foreign owners and directors of French companies, most often a société par actions simplifiée (SAS, a flexible limited company) or a société à responsabilité limitée (SARL, a more rigid limited company), run from abroad.
A tax audit in France is not an informal check. It is a formal adversarial procedure run by the Direction générale des Finances publiques (DGFIP, the French tax administration), usually through the Service des impôts des entreprises (SIE, the corporate tax office handling your company). Every step is governed by the Livre des procédures fiscales (LPF, the Tax Procedure Code), and most procedural mistakes by either side have direct consequences on whether the extra tax can stand. The procedure gives you real rights: advance notice, assistance by counsel, a capped on-site duration, a reasoned extra-tax proposal, and several levels of challenge. Deadlines are short and strict, and silence counts as acceptance.
Part I explains what the notice triggers, how the on-site audit works from abroad, how long it can last and which years can be reopened. Part II explains how to answer the proposition de rectification (the reasoned extra-tax proposal), how interest and penalties work, and how to contest the bill at each level. Each step gives the exact protective text and the practical move from abroad.
I. What the French tax audit notice really means for a company run from abroad
A. How to read the audit notice, the taxpayer charter and the on-site audit from abroad
The starting point is almost always a letter called the avis de vérification (audit notice). For a company, it announces a vérification de comptabilité, meaning the auditor will come and examine your books, invoices, contracts, bank statements and software on your premises. A related but lighter procedure exists, the examen de comptabilité, conducted remotely from the office on files you send, but foreign-owned operating companies most often face the full on-site verification. Do not confuse either with a simple contrôle sur pièces, a desk review where the office asks for documents by letter without coming to you. Only the verification and the personal examination trigger the full set of guarantees described below.
Read the notice line by line before anything else. It must state the years under audit and it must tell you that you may be assisted by counsel of your choice. The statute is blunt: “Cet avis doit préciser les années soumises à vérification et mentionner expressément, sous peine de nullité de la procédure, que le contribuable a la faculté de se faire assister par un conseil de son choix.” That phrase, Article L47 of the Tax Procedure Code, is your first checkpoint. If the notice omits the years or the warning about counsel, the whole procedure can be annulled. Keep the envelope, the registered-mail slip and the email headers proving the sending date, because the computation of every later deadline starts from receipt of a valid notice.
The notice also tells you that the charte des droits et obligations du contribuable vérifié (the charter of rights and obligations of the audited taxpayer) is available on the tax administration website or on simple request. Ask for it in writing and keep it. Auditors rely on it, judges cite it, and it summarises in plain language the adversarial principle that runs through the entire audit: the administration must discuss its findings with you before taxing you on them. From abroad, the most urgent practical step is to appoint a representative in France immediately. That can be your French accountant (expert-comptable), your lawyer, or both, with a written power of attorney allowing them to receive documents, attend audit sessions and sign minutes. The auditor will not pause the procedure because the director lives in another time zone. A company whose director is unreachable, whose accountant has no mandate and whose premises are closed on the day of the visit accumulates adverse inferences that later become very hard to undo.
Some founders discover the audit differently: inspectors show up without warning for material observations, count cash, check ticketing systems or inventory software, and only later send the formal notice. That surprise visit is lawful only within narrow limits. The statute provides that in case of an unannounced control aimed at material findings, the audit notice and the charter are handed over at the start of the material observations, and the substantive review of the accounts can only begin after a reasonable delay allowing the taxpayer to arrange assistance by counsel. Case law polices the boundary between a simple material check and the real start of the audit. In a judgment concerning a nightclub inspected in the middle of the night, the Bordeaux administrative court of appeal held that the inspectors had only recorded ticketing irregularities without comparing accounting entries to supporting documents, and concluded: “le contrôle en cause ne constitue pas un début de vérification de comptabilité.” The lesson for a foreign owner is concrete. If inspectors visit unannounced, note the exact time, ask what legal basis they invoke, accept only material observations, sign nothing substantive without your counsel, and demand the notice and the charter on the spot. What looks like cooperation in the moment can otherwise be reclassified later as the start of the audit with all guarantees attached, or, conversely, as a mere stock-check with no guarantees at all, depending on what was actually done.
Prepare the file your representative will show. French audits test coherence: reported turnover against bank credits, VAT returns against accounting revenue, payroll filings against actual staff, intra-group invoices against transfer-pricing documentation, and shareholder current accounts (comptes courants d’associés, the loans shareholders make to their own company) against written agreements and interest records. Companies run from abroad attract predictable questions: who actually manages the company and from where, where are the board minutes kept, why are supplier invoices paid from a foreign account, and whether management fees paid to the foreign parent correspond to real services. Gather the Kbis (the official company identity extract issued by the greffe, the commercial court registry), the articles of association, the beneficial-owner register, the last three years of filed accounts, VAT returns, payroll records, bank statements, major contracts and any transfer-pricing file before the first meeting. An auditor who finds an organised file asks fewer hostile questions than one who finds a shoebox and a director on another continent.
B. How long the on-site audit can last and which past years the tax office can reopen
The second checkpoint is duration. For most small and medium companies, the on-site verification cannot exceed three months, on pain of annulment of the resulting tax. The statute states: “Sous peine de nullité de l’imposition, la vérification sur place des livres ou documents comptables ne peut s’étendre sur une durée supérieure à trois mois en ce qui concerne :” followed by turnover thresholds for industrial, commercial, non-commercial and farming activities. If your French subsidiary is below those thresholds, count the days between the first on-site visit and the last one. An audit that drags on for five months on your premises without falling into one of the statutory exceptions produces assessments a court must annul. That is why your representative should keep a dated log of every visit, every document request and every meeting, with names and times.
The three-month cap is not absolute. The same article extends it, notably where the accounts are so irregular that they have no probative value, in which case the on-site audit can run up to six months, or where flagrant tax fraud was formally recorded, hidden activity is involved, or a criminal investigation is under way. The administration bears the burden of proving the exception it invokes. A few missing invoices do not equal accounts devoid of probative value. If the auditor claims the six-month extension, ask for the written reasoning immediately and have counsel test it against the case file, because the difference between a three-month and a six-month audit often decides the fate of the whole reassessment.
The third checkpoint is the look-back period: which years can still be taxed. The baseline rule is three years. Article L169 of the Tax Procedure Code provides: “Pour l’impôt sur le revenu et l’impôt sur les sociétés, le droit de reprise de l’administration des impôts s’exerce jusqu’à la fin de la troisième année qui suit celle au titre de laquelle l’imposition est due.” In plain terms, at the end of 2026 the administration can normally still assess corporate income tax for 2023, 2024 and 2025, but 2022 is time-barred unless an exception applies. The main exception is hidden activity (activité occulte): a company that never filed returns, never registered with the business formalities office, or operated unlawfully can be pursued for ten years. A related ten-year extension applies when mandatory foreign-asset or controlled-entity disclosures were ignored. Foreign founders sometimes trigger this trap without realising it: a French operating presence with staff, stock or a signed lease, run through a foreign company with no French registration, can be reclassified as an undeclared French establishment, and the ten-year clock starts running instead of three.
Two further timing rules matter from abroad. First, the general reply period in tax procedure is thirty days: “le délai accordé aux contribuables pour répondre aux demandes de renseignements, de justifications ou d’éclaircissements et, d’une manière générale, à toute notification émanant d’un agent de l’administration des impôts est fixé à trente jours à compter de la réception de cette notification.” That thirty-day period in Article L11 of the Tax Procedure Code appears again and again: observations on the draft assessment, requests for hierarchical review, applications for penalty relief. Diarise every deadline in both French and home-country time, because a letter received at your Paris accountant’s office while you are travelling still runs against you. Second, the proposition de rectification interrupts the limitation period, which is why auditors sometimes notify it just before 31 December. If you receive a proposal dated late December covering a year about to become time-barred, treat it as the administration protecting its right to tax and react within the reply period rather than hoping the year will expire quietly.
Finally, understand the scope. A verification usually covers corporate income tax (impôt sur les sociétés), value added tax (VAT, taxe sur la valeur ajoutée) and related withholding obligations over the notified years, and findings in one tax often spill into another. A turnover adjustment for corporate tax mechanically increases the VAT base. A reclassified contractor becomes undeclared salary with social and withholding consequences handled by other bodies such as the URSSAF (the social-security collection agency). Keep the audit perimeter in mind when you answer: a concession that looks cheap on corporate tax can become expensive once VAT, late interest and penalties follow. Useful public references for the procedure include the official BOFIP doctrine on rectification procedures and the English-language service-public pages on tax appeals, which your counsel can align with the file: BOI-CF-IOR-10-50-10 on the effects of the proposition de rectification, service-public.fr guide to informal tax appeals and service-public.fr guide to business tax disputes.
II. How to answer the extra tax bill and contest it from abroad
A. How to reply within 30 days to the reasoned tax proposal and limit interest and penalties
When the fieldwork ends, the administration sends the decisive document: the proposition de rectification. This is not yet a tax bill, but it becomes one if you let it stand. The law requires full reasoning: “L’administration adresse au contribuable une proposition de rectification qui doit être motivée de manière à lui permettre de formuler ses observations ou de faire connaître son acceptation.” That sentence in Article L57 of the Tax Procedure Code is the heart of the adversarial procedure. A proposal that states figures without explaining the legal basis, the facts found and the reasoning linking them to the adjustment is defective, and courts annul assessments built on it. The standard is demanding. As one court of appeal put it, “pour être régulière, une proposition de rectification doit comporter, outre la désignation de l’impôt concerné, de l’année d’imposition et de la base des redressements, ceux des motifs sur lesquels l’administration entend se fonder pour justifier les redressements envisagés qui sont nécessaires pour permettre au contribuable de formuler ses observations de manière entièrement utile.” Check every adjustment against that test: tax named, year stated, base quantified, and the specific reasons that let you usefully reply.
The proposal must also quantify the money at stake before you reply. Article L48 of the Tax Procedure Code requires that “l’administration doit indiquer, avant que le contribuable présente ses observations ou accepte les rehaussements proposés, dans la proposition prévue au premier alinéa de l’article L. 57 ou dans la notification mentionnée à l’article L. 76 , le montant des droits, taxes et pénalités résultant de ces rectifications.” Verify the arithmetic yourself: principal tax per year, late interest, and each penalty with its rate and legal basis. Errors in penalty computation are frequent and worth contesting line by line, because a 40 percent surcharge removed on a large base immediately changes the economics of any settlement.
You then have thirty days from receipt to accept or reply with observations, and you can ask for a thirty-day extension before the first period expires. Use the full time. A reasoned reply drafted with your accountant and lawyer should answer each adjustment separately: admit what is correct, dispute what is wrong with documents, propose alternative figures with workings, and request the discharge of penalties on specified legal grounds. Attach everything: contracts, bank proofs, time sheets, email trails showing real intra-group services, corrected returns where appropriate. The reply interrupts nothing against you and costs nothing, while silence is recorded as tacit acceptance and closes doors later. Foreign owners should sign the reply themselves or through a holder of an express written mandate, and send it by a traceable channel to the address stated in the proposal, keeping proof of receipt in both France and the home country.
Two money rules run alongside the reply. First, late interest accrues on any tax paid late, with statutory exemptions notably where the taxpayer flagged the uncertain point expressly in the return or where a genuine interpretative difficulty existed and a formal ruling request went unanswered. Second, penalties follow a ladder set by the General Tax Code. The baseline provision states: “Les inexactitudes ou les omissions relevées dans une déclaration ou un acte comportant l’indication d’éléments à retenir pour l’assiette ou la liquidation de l’impôt ainsi que la restitution d’une créance de nature fiscale dont le versement a été indûment obtenu de l’Etat entraînent l’application d’une majoration de : a. 40 % en cas de manquement délibéré ;” with 80 percent for abuse of law, fraudulent manoeuvres or concealment of part of a contract price. In practice, auditors often start high on penalties. Challenge the deliberate element (manquement délibéré) systematically: good-faith error, reliance on the accountant, first-time application of a complex rule and prompt correction all argue for zero or reduced penalties. A separate request for penalty relief (demande de remise gracieuse) can run in parallel for the principal penalties while you contest the base itself through the adversarial route.
Before the assessment becomes final, two free internal reviews exist and should be used from abroad by videoconference or through counsel. The hierarchical review (recours hiérarchique) brings a senior officer above the auditor, and the departmental interview (interlocution départementale) brings an independent departmental reviewer. Both can cancel or reduce adjustments and, just as importantly, create a written record of the administration’s final position that the later commission and court will read. Ask for them in the observations letter itself, propose concrete dates, and attend with counsel even remotely. Companies that skip these steps arrive before the commission or the judge with a thinner file and fewer admissions to exploit.
One more tool deserves attention while the audit is still open: regularisation during control. For certain errors made in good faith, the company can ask to correct them during the audit itself in exchange for reduced late interest, following the dedicated BOFIP procedure. Your accountant can tell within days whether a given VAT omission or asset misclassification qualifies. Where it does, voluntary correction during the audit is almost always cheaper than litigating the same point for three years with full interest and penalties attached.
B. How to challenge the bill before the commission, the tax office and the administrative court
If disagreement persists after your observations, the next shield is the independent commission. The statute provides: “Lorsque le désaccord persiste sur les rectifications notifiées, l’administration, si le contribuable le demande, soumet le litige à l’avis soit de la commission des impôts directs et des taxes sur le chiffre d’affaires prévue à l’article 1651 du code général des impôts” or, depending on the taxes and amounts, to one of the other competent national or departmental bodies. This referral is not automatic: you must request it, in writing, within the stated deadline after the administration confirms the adjustments. The commission hears both sides, examines the file and issues an opinion that the administration usually follows on questions of fact such as margins, stock valuation, transfer prices or the probative value of accounts. For a foreign-run company, commission hearings on valuation disputes are often the best value in the whole procedure: a half-day hearing with counsel and the accountant can remove or halve an adjustment that would otherwise require years of court proceedings. Prepare a short memorandum, a one-page computation and a bundle of exhibits, and bring the person who knows the business, even by video link where accepted, because commissioners respond to concrete business explanations better than to abstract legal argument.
The administration then issues the formal assessment and the collection notice (avis de mise en recouvrement). From that moment the debt is enforceable, but you are not without protection. File a formal claim (réclamation contentieuse) with the SIE, stating each ground of fact and law and attaching the evidence, and at the same time request a stay of payment (sursis de paiement) by offering the guarantees the law allows, typically a bank guarantee or a mortgage, so that enforcement is suspended while the claim is examined. The claim must be filed within the statutory deadline running from the collection notice or from the event giving rise to the dispute. Miss it and the assessment becomes definitive even if it was wrong. If the office rejects the claim expressly or by silence after six months, you can take the case to the administrative court (tribunal administratif) where your company’s French seat is located, then, if needed, to the administrative court of appeal and ultimately to the Conseil d’État on points of law. Each level reviews both the regularity of the procedure and the merits of the tax, which is why every procedural defect identified in Part I must be pleaded from the very first claim: nullity of the notice, breach of the three-month cap, time-barred years, unreasoned proposal, missing penalty breakdown. Judges decide on the file as built, and arguments raised for the first time on appeal face admissibility hurdles.
Litigation from abroad is entirely routine in Paris, Versailles, Montreuil and Lyon, the courts that handle most foreign-owned company files, and it runs on paper and through counsel. Your lawyer files the petition (requête) electronically, exchanges memoranda with the administration’s lawyer, and pleads at a public hearing you may attend or not. Deadlines are computed in months from notification and are strict, but distance itself is no excuse and no obstacle: powers of attorney, sworn translations of foreign documents, apostilled company papers and video preparation calls are everyday practice. Budget realistically. Court proceedings typically run eighteen months to three years at first instance, longer on appeal, with late interest continuing to accrue on any confirmed principal. That is why strong files settle: once the commission opinion or the first judicial exchange shows the administration’s weak points, a reasoned settlement proposal through counsel, including penalty relief and a payment plan (plan de règlement), often closes the case for less than the cost of winning it two years later.
Two traps specific to foreign owners deserve emphasis. First, keep the company’s French address alive throughout the dispute. Tax notices sent to the registered office (siège social), to the accountant’s address on file, or to the electronic professional account (espace professionnel on impots.gouv.fr) are deemed received even if you moved the management office, changed accountants or stopped checking the portal. Designate one person to open every letter and forward it the same day. Second, coordinate the French dispute with the home country. An adjustment that increases French taxable profit may create double taxation if the same profit is taxed abroad, and the protection then lies in the applicable double-tax treaty and the mutual agreement procedure between the two states, which runs on its own short deadlines. Tell your home-country adviser about the French audit in week one, not in year three when treaty deadlines have expired.
For readers who want the official backbone of this route, the procedure belongs to the adversarial rectification track defined by the Tax Procedure Code: Article L55 sends insufficiencies and inaccuracies to the contradictory procedure of Articles L57 to L61 A, the proposal interrupts prescription as the BOFIP confirms (BOI-CF-IOR-10-50-10), and practical claim routes are summarised for businesses on service-public.fr and for appeals on impots.gouv.fr. None of these pages replaces the file-specific analysis, but together with the cited statutes and judgments they let a foreign director check every statement the auditor makes instead of taking it on trust.
Conclusion
A French tax audit notice received from abroad is a serious but manageable event. Verify the notice against Article L47, appoint a mandated representative in France within days, log every visit against the three-month cap in Article L52, test every year against the three-year rule in Article L169, and answer the reasoned proposal point by point within thirty days under Articles L57, L48 and L11. Contest penalties under the General Tax Code interest and surcharge rules, use the hierarchical review and the departmental interview, request the commission under Article L59 where the facts are debatable, then claim, stay payment and litigate in that order. Foreign founders who follow that sequence, with documents organised and deadlines diarised, regularly see assessments reduced or annulled. Those who ignore the letter, change accountants mid-audit or reply in generalities pay the full bill plus interest. If the envelope on your desk bears the words vérification de comptabilité, start the clock today: mandate counsel, confirm the years and the arithmetic, and turn the procedure from a threat into a structured negotiation. For the wider journey of running the company once the audit is behind you, from accounts to VAT to payroll, see our pillar guide for setting up a company in France as a foreign founder.
Need a quick opinion on your case?
Get a phone consultation within 48 hours with a lawyer of the firm. Call +33 6 46 60 58 22 or write via our contact page. Our Paris office advises foreign founders and companies across France and internationally.