You live in London, New York, Dubai or Singapore. Your French company — a SAS (société par actions simplifiée, the flexible joint-stock company most foreign founders choose) or a SARL (société à responsabilité limitée, the limited liability company with a more rigid legal frame) — operates in France, invoices clients, and everything seemed fine. Then a letter arrives from the SIE (Service des impôts des entreprises, the local corporate tax office that handles your company): a VAT return is missing, a CA3 (the standard French VAT return, filed on form number 3310-CA3-SD) was never filed, and money is now due — tax, late interest, and a surcharge. If you ignore it, the amounts grow every month, and the SIE can move to forced recovery against the company’s French bank account.

This article explains, in plain English, how French VAT returns work when the owner lives abroad, what a missed CA3 really costs, and the exact path to fix it from outside France: file late but file now, cut the interest in half through spontaneous regularisation, keep the surcharge at 10% instead of 40%, and contest what is wrongly charged. Every French acronym is explained, every decisive legal statement is backed by the official text of the statute or the court decision it comes from, and every step can be done remotely through the impots.gouv.fr professional account, if needed with a French adviser acting under a written mandate.

The starting point matters. VAT registration itself — getting your French VAT identification number before you invoice — is a separate battle, covered in our guide on French e-invoicing and reporting duties for foreign companies and in our general hub for setting up a company in France as a foreign founder. This article takes over where those stop: you are registered, you have a SIREN (the unique identification number issued to every French company when it is entered on the RCS, the Registre du commerce et des sociétés, the commercial register kept by the greffe, the clerk’s office of the commercial court, which also issues your Kbis, the official certificate proving your company’s existence), and now the recurring returns must be filed on time — or repaired when they are not.

I. How do I file VAT in France for my company when I live abroad: monthly CA3 or yearly return?

France does not have a single VAT return rhythm. Your company falls under one of two regimes, and the regime decides what you file, when you pay, and therefore what goes wrong when you miss a deadline. A foreign owner who understands this split already avoids half of the penalties described below.

A. Do I file a CA3 every month or pay instalments once a year?

Most operating companies are under the régime réel normal (the standard VAT regime). The rule is stated in Article 287 of the CGI (Code général des impôts, the French Tax Code): “Tout redevable de la taxe sur la valeur ajoutée identifié conformément aux dispositions combinées des articles 286 ter et 286 ter A est tenu de remettre au service des impôts dont il dépend et dans le délai fixé par arrêté une déclaration conforme au modèle prescrit par l’administration.” In other words, every identified VAT payer must send its tax office the return the administration prescribes, within the deadline set by ministerial order. For companies under the standard regime, the same article continues: “Les redevables soumis au régime réel normal d’imposition déposent mensuellement la déclaration visée au 1 indiquant, d’une part, le montant total des opérations réalisées, d’autre part, le détail des opérations taxables.” Each month, you declare the total of your transactions and the detail of the taxable ones, and you pay the VAT due for that month at the same time.

The official tax portal states the same rule in operational terms: companies under the standard regime e-file a CA3 each month, computing the VAT that became chargeable during the previous month (see TVA — professionnels, impots.gouv.fr). Everything is dematerialised: you file and pay online through the company’s professional account on impots.gouv.fr, which your French accountant or tax adviser can access under mandate if you live abroad. The filing calendar depends on the location of your SIE — the tax administration publishes department-by-department CA3 deadlines (see Le régime réel normal — dates limites de transmission des CA3, impots.gouv.fr) — so the first task for a foreign owner is to confirm which SIE handles the company and which day of the month its CA3 is due.

There are two narrow exceptions to monthly filing. First, small payers under the standard regime may file quarterly: still under Article 287 of the CGI, “Lorsque la taxe exigible annuellement est inférieure à 4 000 €, ils sont admis à déposer leurs déclarations par trimestre civil.” For these small payers, the statute itself adds: “Lorsque la taxe exigible annuellement est inférieure à 4 000 €, ils sont admis à déposer leurs déclarations par trimestre civil.” (see Article 287 of the CGI, with a practical summary on TVA — professionnels, impots.gouv.fr). Second, smaller businesses may fall under the régime simplifié (the simplified regime), where there is no monthly CA3 at all: you pay two half-yearly instalments, in July and December — “Des acomptes semestriels sont versés en juillet et en décembre.” — equal to “55 % et 40 % de la taxe due au titre de l’exercice précédent avant déduction de la taxe sur la valeur ajoutée relative aux biens constituant des immobilisations”, and you file a single annual return that settles the balance (see Article 287 of the CGI). If you overpaid through instalments, the balance comes back to you; if you underpaid, you top it up when filing the annual return.

Why does this matter for a foreign founder? Because the most common mistake is assuming that a quiet company owes nothing and files nothing. A company with no transactions in a month under the standard regime still files its CA3 — a nil return — and a company under the simplified regime still pays its July and December instalments. The SIE’s computer does not know you were travelling, that your accountant changed, or that emails from impots.gouv.fr went to spam. It only sees a missing return, and the penalty machine described in Part II starts automatically. Foreign owners should therefore ask their adviser, in writing, three questions at the start of every year: which regime are we under, what is our exact filing calendar, and who files if our usual contact is unavailable.

One more identification duty is worth knowing, because it sits at the root of many files. Under Article 286 of the CGI, every VAT payer must, “Dans les quinze jours du commencement de ses opérations, souscrire au bureau désigné par un arrêté une déclaration conforme au modèle fourni par l’administration.” If your company started trading and nobody completed that step, or if the activity changed (new business line, first intra-EU purchases, first imports), the SIE may treat later returns with suspicion. Keeping the identification data current — address of the registered office, activity code, contact email on the professional account — costs nothing and prevents the kind of file mismatch that turns a simple late CA3 into a full audit.

B. Who pays the French VAT and which tax office handles my company from abroad?

The basic principle is simple and is stated in Article 283 of the CGI: “La taxe sur la valeur ajoutée doit être acquittée par les personnes qui réalisent les opérations imposables, sous réserve des cas visés aux articles 275 à 277 A où le versement de la taxe peut être suspendu.” Your French company, when it carries out taxable sales of goods or supplies of services in France, is the VAT payer: it charges VAT on its invoices, collects it from customers, deducts the VAT it paid on its own purchases, and sends the difference to the Treasury with its CA3.

Foreign founders are often surprised by the mirror rule that applies when the supplier is outside France. The same Article 283 of the CGI provides: “est effectuée par un assujetti établi hors de France, la taxe est acquittée par l’acquéreur, le destinataire ou le preneur qui agit en tant qu’assujetti et qui dispose d’un numéro d’identification à la taxe sur la valeur ajoutée en France” This is the reverse charge (autoliquidation): when a supplier established outside France sells to your French VAT-registered company, it is your company that accounts for the French VAT on its CA3, with the amount due shown separately on the Article 287 return. Many foreign groups discover this rule the hard way, when the parent company invoices the French subsidiary for management fees, IT services or brand royalties without French VAT, and nobody self-assesses it on the subsidiary’s CA3. Each such invoice is a missing VAT line that later produces back tax plus interest.

Invoicing discipline is therefore part of VAT compliance, not an administrative detail. Article 289 of the CGI states: “Tout assujetti est tenu de s’assurer qu’une facture est émise, par lui-même, ou en son nom et pour son compte, par son client ou par un tiers”. Every sale to another taxable business must be covered by a proper invoice, and since 1 September 2026 large and then progressively all French companies must also issue and receive invoices electronically and transmit transaction data to the administration — the e-invoicing and e-reporting reform described in our dedicated guide for foreign companies selling in France. A foreign owner should make sure the company’s billing tool produces compliant invoices with the French VAT number shown, sequential numbering, and the correct VAT rate per line: without clean invoices, the company’s deducted VAT (its input VAT refunds) is the first thing a controller attacks.

As for the tax office: a company with a French registered office files with the SIE of the district where that office sits, and all correspondence — formal notices (mises en demeure), reassessment proposals, collection notices (AMR, avis de mise en recouvrement, the formal document by which the Treasury bills tax after an audit or a default assessment) — comes from that office. Companies with no French establishment follow a dedicated national procedure for foreign businesses. Either way, from abroad everything passes through the impots.gouv.fr professional account: returns, payments by SEPA transfer, claims, and secure messages to the SIE. Practical advice that saves files every month: activate email alerts on the professional account, give access to two people (for example the foreign director and the French accountant), and treat any letter from the SIE — even in French you barely read — as urgent. The thirty-day clock described in Part II often starts on the day that letter is received.

II. I missed a French VAT return: how do I fix the CA3, cut penalties and contest from abroad?

A missed CA3 produces three layers of cost: the VAT itself, which remains due; late interest, which runs month by month; and a surcharge, whose rate depends on how quickly you react. The good news is that French law rewards taxpayers who come forward on their own, and that the surcharge is reviewable by a judge. The bad news is that every week of waiting makes both layers heavier. Here is the repair sequence, in order.

A. How do I file the late CA3 and stop interest running?

Step one is to file the missing return immediately, even if you cannot pay the full amount at once. Filing stops some clocks and always improves your position: the 10% surcharge (see below) applies whether or not you received a formal notice, provided you file within thirty days of it, while the 40% rate hits taxpayers who let the formal notice expire. File the exact missing period on the professional account, declare the real figures — output VAT collected, deductible input VAT with supporting invoices — and pay whatever you can. A wrong or deliberately understated late return is worse than a late honest one, because deliberate inaccuracies open the door to higher penalties.

Step two is to understand the interest meter, so you can stop it. Article 1727 of the CGI provides: “Le taux de l’intérêt de retard est de 0,20 % par mois.” That is 2.4% per year, and it applies to the tax due on top of any surcharge. The same article fixes the computation period: “L’intérêt de retard est calculé à compter du premier jour du mois suivant celui au cours duquel l’impôt devait être acquitté jusqu’au dernier jour du mois du paiement.” Interest therefore starts on the first day of the month after the missed deadline and stops at the end of the month in which you pay. A CA3 due in March and paid in September accrues roughly six months of interest — and paying on the 1st or the 30th of September costs the same, since the month counts in full either way.

Step three is to claim the reward the law gives to taxpayers who regularise spontaneously. The same Article 1727 of the CGI states: “Le montant dû au titre de l’intérêt de retard est réduit de 50 % en cas de dépôt spontané par le contribuable, avant l’expiration du délai prévu pour l’exercice par l’administration de son droit de reprise, d’une déclaration rectificative à condition, d’une part, que la régularisation ne concerne pas une infraction exclusive de bonne foi et, d’autre part, que la déclaration soit accompagnée du paiement des droits simples”. A spontaneous filing — before any audit notice or reassessment proposal — accompanied by payment of the principal can therefore halve the late interest. The conditions matter: the error must not be a deliberate fraud (a simple omission or accounting mistake qualifies; a hidden activity does not), and the principal must be paid with the corrective filing, or at the latest by the payment date on the assessment. If cash is short, do not wait: contact the SIE’s collection department (the comptable public, the public accountant in charge of recovery) to request a payment plan, and file the return anyway. A filed-but-unpaid return with a plan costs far less than an unfiled one.

Step four is to measure the surcharge grid, because it decides your urgency. Article 1728 of the CGI provides: “Le défaut de production dans les délais prescrits d’une déclaration ou d’un acte comportant l’indication d’éléments à retenir pour l’assiette ou la liquidation de l’impôt entraîne l’application, sur le montant des droits mis à la charge du contribuable ou résultant de la déclaration ou de l’acte déposé tardivement, d’une majoration de :” — then three rates: “10 % en l’absence de mise en demeure ou en cas de dépôt de la déclaration ou de l’acte dans les trente jours suivant la réception d’une mise en demeure d’avoir à le produire dans ce délai ;” and “40 % lorsque la déclaration ou l’acte n’a pas été déposé dans les trente jours suivant la réception d’une mise en demeure d’avoir à le produire dans ce délai ;” (with 80% reserved for hidden activity). In practice: file before any formal notice, or within thirty days of receiving it, and the surcharge is 10%. Miss that thirty-day window and it jumps to 40% of the tax due — four times more, on top of interest. For a company that owes 20,000 euros of VAT, the difference between reacting and sleeping is 2,000 versus 8,000 euros of surcharge, plus interest. From abroad, the single most valuable reflex is therefore to calendar every SIE letter and answer within days, through your adviser if your French is limited.

Step five is to know how far back the administration can go, because it sets your exposure. For turnover taxes, Article L.176 of the LPF (Livre des procédures fiscales, the Book of Tax Procedures that governs audits, time limits and disputes) provides: “Pour les taxes sur le chiffre d’affaires, le droit de reprise de l’administration s’exerce jusqu’à la fin de la troisième année suivant celle au cours de laquelle la taxe est devenue exigible”. The SIE can generally reassess VAT going back three years — ten in cases of hidden activity. A single missed CA3 from last year is therefore not an isolated incident in the eyes of a controller: it invites the SIE to check the surrounding periods. Regularising the whole gap at once, with consistent figures across returns, closes that door instead of leaving it open.

B. How do I challenge the 10% or 40% surcharge and get overpaid VAT back?

Paying to stop the bleeding does not mean accepting everything. French tax procedure gives you a structured path to challenge the surcharge, the interest, or the VAT itself — and recent case law has strengthened the judge’s power to reduce penalties that do not fit the behaviour.

The first tool is the réclamation contentieuse (the formal tax claim): a written, reasoned claim sent to the SIE, normally within the legal time limit after the assessment or collection notice, asking for discharge or reduction of the tax, interest or surcharge and explaining precisely why — wrong figures, VAT that was in fact deductible with invoices attached, formal notice never received, good faith, disproportionate penalty. Attach everything: the late CA3s, the invoices proving deductible input VAT, proof of the payment date, the envelopes and receipt dates of the SIE’s letters, evidence that the omission was an error (change of accountant, professional account locked, director abroad without access) rather than a scheme. If the SIE rejects the claim expressly or stays silent, you can take the dispute to the administrative court (tribunal administratif), which re-examines the whole file.

The strongest legal lever against a heavy surcharge is the judge’s duty to check proportionality. In a decision of 12 February 2025 (Court of Cassation, Commercial Chamber, appeal number 23-14.047, see Cass. com., 12 Feb. 2025, no. 23-14.047), the Court held: “Il résulte de ce texte qu’un recours de pleine juridiction doit être ouvert au contribuable pour permettre au juge de se prononcer sur le principe et le montant de la pénalité fiscale.” And it added the operational rule: “Le juge, saisi d’une demande en ce sens, doit vérifier que la pénalité fiscale est proportionnée au comportement du contribuable dans les circonstances de l’espèce.” In that case, the court of appeal had upheld an 80% penalty with a blanket statement that it was proportionate; the Court of Cassation quashed that part of the ruling because the lower court had not concretely assessed the penalty against the taxpayer’s actual behaviour. The lesson for a foreign company facing 40%: do not just state that the penalty is heavy — file a documented plea showing the context (first omission, immediate correction once alerted, no concealment, payment made, compliance since), and expressly ask the judge to moderate the penalty. The court has the power to reduce it when the facts justify it.

A second line of defence matters when the file slides toward fraud accusations. VAT omissions can, in serious cases, trigger both a tax surcharge and a criminal prosecution for tax fraud, but that combination is fenced in. The Criminal Chamber of the Court of Cassation (22 March 2023, appeal number 19-81.929, see Cass. crim., 22 Mar. 2023, no. 19-81.929) recalls, following the European case law on the matter, “que le prévenu de fraude fiscale doit avoir été en mesure de prévoir, au moment où l’infraction a été commise, que ses agissements étaient susceptibles de faire l’objet d’un cumul de sanctions fiscale et pénale.” For an ordinary foreign founder who simply missed returns, this case law is reassurance: your situation belongs to the administrative track — file, pay, claim, and if needed litigate the penalty — not the criminal one, which targets the most serious fraudulent schemes. Conversely, if you ever receive a summons or a fraud-related notice, treat it as a separate emergency and take criminal tax advice immediately, because statements made casually in the administrative file can be used elsewhere.

The third tool points the other way: when it is the Treasury that owes you money. If your claim succeeds — wrong VAT reassessed, deductible VAT finally admitted, surcharge discharged — the administration refunds the overpaid amounts, and the refund carries interest in your favour. Article L.208 of the LPF provides: “Quand l’Etat est condamné à un dégrèvement d’impôt par un tribunal ou quand un dégrèvement est prononcé par l’administration à la suite d’une réclamation tendant à la réparation d’une erreur commise dans l’assiette ou le calcul des impositions, les sommes déjà perçues sont remboursées au contribuable et donnent lieu au paiement d’intérêts moratoires dont le taux est celui de l’intérêt de retard prévu à l’article 1727 du code général des impôts.” Overpayments returned to you therefore bear moratory interest at the same 0.20% monthly rate. This is why, paradoxically, paying a disputed VAT bill quickly and claiming immediately is often better than refusing to pay: you stop your own interest meter, and if you win, the state’s meter runs for you.

Two practical warnings complete the picture for owners managing from abroad. First, never let a formal notice go unanswered because it is written in French: the jump from 10% to 40% turns on thirty days from receipt of the mise en demeure, and “I did not understand the letter” is not a legal defence — a local adviser or a sworn translator costs a fraction of the extra 30 points. Second, keep every invoice, contract and bank proof behind each CA3 line, in a form the administration accepts: Article 289 of the CGI requires that “Tout assujetti est tenu de s’assurer qu’une facture est émise, par lui-même, ou en son nom et pour son compte, par son client ou par un tiers”, and input VAT without a compliant invoice is routinely thrown out in audits. With electronic invoicing now mandatory in stages since September 2026, a billing system that is not compliant is itself a red flag — see our guide on e-invoicing duties for foreign companies.

Conclusion

A missed French VAT return is a solvable problem, but only if you treat it as urgent. Identify your regime — monthly CA3 under the standard regime, quarterly if your annual VAT is below 4,000 euros, half-yearly instalments under the simplified regime — and file the missing return now through the professional account, even from the other side of the world. Spontaneous regularisation with payment can halve the 0.20%-per-month late interest; reacting within thirty days of the formal notice keeps the surcharge at 10% instead of 40%; and if the penalty still does not fit the facts, the administrative judge must check its proportionality to your actual behaviour and can reduce it. Pay first and claim in parallel where the figures are disputed, because refunds carry moratory interest at the same rate. And use the scare as a reset: confirm your SIE and filing calendar in writing, secure your invoicing chain as electronic invoicing becomes the norm, and make sure two people — not one — monitor the professional account. Run from abroad, a French company stays compliant the same way it does business: with a calendar, a paper trail, and someone who answers the administration’s letters within days, not months.

Need a quick opinion on your case

Our firm offers a telephone consultation within 48 hours with a lawyer of the firm for any foreign founder or company facing a French VAT issue. Call 06 46 60 58 22 or write through our contact page with your SIE letter and your last CA3: we will tell you what to file, what to pay now, and what to contest.