You set up a French company from abroad, sales started, and then a letter arrives from the French tax office about a VAT return you never filed. Or your accountant tells you the CA3 for last month was never sent. Panic is understandable, but a missed French VAT return is a solvable problem if you move fast and in the right order. This guide explains, in plain English, which return France expects from you, when reverse charge or import VAT changes the picture, what a late or wrong return really costs in surcharges and lost deductions, and the four-step fix to put your company back in order this week. Every French acronym is explained, every key rule is quoted from the French Tax Code and recent court decisions, and the examples are written for foreign founders running a SAS, a SARL or a French branch. France takes VAT deadlines seriously: file late and a 10 percent surcharge applies at once, ignore a formal notice and it climbs to 40 percent, and if you wait too long you can lose your input VAT deduction for good. The good news is that a spontaneous late filing, immediate payment and a well-argued request for relief can sharply limit the damage. Read on to see exactly how.

I. Do you owe France a CA3 every month, a CA12 once a year, or nothing at all?

Before fixing anything, identify the return you actually owe. France does not have a single VAT return for everyone: the monthly CA3 is the default for operating companies, the annual CA12 covers small businesses under a simplified regime, and some foreign sellers escape the French return entirely through reverse charge or the EU One-Stop Shop. Filing the wrong form, or filing when reverse charge applied, creates as many problems as not filing at all.

A. The monthly CA3 is the default return for a French company with real activity

Value added tax in France is governed by the French Tax Code, known by its French initials CGI (Code général des impôts). Its scope is deliberately broad:

Article 256 of the French Tax Code provides: “Sont soumises à la taxe sur la valeur ajoutée les livraisons de biens et les prestations de services effectuées à titre onéreux par un assujetti agissant en tant que tel.”

In English: supplies of goods and services made for payment by a taxable person acting as such fall within French VAT. If your French SAS (société par actions simplifiée, the flexible limited company most foreign founders choose), your SARL (société à responsabilité limitée, the traditional private limited company) or your French branch sells goods or services in France, you are normally inside this scope from the first invoice.

Registration comes first. Article 286 of the French Tax Code provides: “Toute personne assujettie à la taxe sur la valeur ajoutée doit : 1° 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.”

In practice, a company created in France is identified for VAT when it registers with the business formalities office (the guichet unique run with the INPI, the French intellectual property and business registration institute), receives its SIREN number (the unique company identification number) and appears on the RCS (Registre du commerce et des sociétés, the Trade and Companies Register kept by the greffe, the registry office of the commercial court). The Kbis extract (the official ID card of a French company, issued by the greffe) proves the company exists, but it is the VAT identification number that lets you file returns with the SIE (service des impôts des entreprises, the business tax office your company depends on). If you run a company established outside the European Union, you generally act through a tax representative in France for registration and filing, so confirm that appointment before anything else.

Once identified, the core duty is the periodic return. Article 287 of the French Tax Code provides: “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.”

For companies under the standard regime (régime réel normal), Article 287 of the French Tax Code 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. La taxe exigible est acquittée tous les mois.”

That monthly declaration is the CA3. Each month you report total turnover and taxable transactions, subtract the VAT you paid on business purchases (input VAT), and pay the balance. Small but active companies get one relief, since Article 287 of the French Tax Code states: “Lorsque la taxe exigible annuellement est inférieure à 4 000 €, ils sont admis à déposer leurs déclarations par trimestre civil.” If your annual VAT bill is below 4,000 euros, you may file each calendar quarter instead of each month.

Very small businesses can fall under the simplified regime (régime simplifié d’imposition), with an annual CA12 return that sets the tax due for the year and the instalments for the following period. Article 287 of the French Tax Code fixes the payment rhythm: “Des acomptes semestriels sont versés en juillet et en décembre.” A foreign-owned startup with real French premises will rarely stay in this regime for long, but check which regime the SIE assigned you before assuming a missed month means a missed CA3: a company under the simplified regime misses instalments, not monthly returns. If you stop trading or sell the business, the same article 287 requires a final return within thirty days of the transfer or shutdown, sixty days under the simplified regime, so closing a French company without a last VAT return leaves an open file at the tax office.

For a fuller picture of creating and running the company around this VAT duty, from bank account to Kbis to first hire, see our hub guide for foreign founders: Setting Up a Company in France as a Foreign Founder: Bank Account, Kbis, VAT and Your First Hire.

B. Reverse charge, import VAT and online sales: when a foreign company owes French VAT without a French shop

Many foreign founders assume that without a French office they owe nothing in France. That is often wrong in both directions: sometimes France taxes your sale even though you invoice from abroad, and sometimes your French customer handles the VAT for you through reverse charge (autoliquidation), meaning your invoice must show no French VAT at all. Charging French VAT when reverse charge applied, or forgetting a return when France claims the tax, are two of the most expensive mistakes we see.

The starting point is where the service is deemed to take place. Article 259 of the French Tax Code provides: “Le lieu des prestations de services est situé en France : 1° Lorsque le preneur est un assujetti agissant en tant que tel et qu’il a en France : a) Le siège de son activité économique, sauf lorsqu’il dispose d’un établissement stable non situé en France auquel les services sont fournis ; b) Ou un établissement stable auquel les services sont fournis ; c) Ou, à défaut du a ou du b, son domicile ou sa résidence habituelle ;”

In plain terms: services sold to a French VAT-registered business are generally treated as French transactions. The decisive question is then who pays the VAT to the French Treasury. Article 283 of the French Tax Code provides: “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”. The amount due is then shown on the French VAT return, so the French customer self-assesses the tax instead of the foreign supplier.

And for cross-border business-to-business services, Article 283 of the French Tax Code adds: “Lorsque les prestations mentionnées au 1° de l’ article 259 sont fournies par un assujetti qui n’est pas établi en France, la taxe doit être acquittée par le preneur.”

Concretely, if your US or UK company sells consulting, software development or marketing services to a French SAS that holds a French VAT number, you invoice without French VAT and your French customer self-assesses it on its own CA3. Your company files no French return for that sale, but your invoice wording must be exact, and you must hold proof of your customer’s French VAT number. Mirror mistake: a French branch that receives such foreign services must self-assess the VAT on its own return, and founders who ignore these lines on the CA3 underpay without realising it until a tax audit (contrôle fiscal) arrives years later.

Goods are stricter. If you import goods into France through a port such as Le Havre or an airport such as Roissy, French import VAT is collected like customs duty. The Cour de cassation (the French supreme court for civil, commercial and criminal matters) confirmed the mechanism in a decision of 24 January 2024, commercial chamber, appeal number 22-13.103, ruling number 32 FS-B (read the full decision on the official Cour de cassation website): “Aux termes de l’article 1695, I, du code général des impôts, dans sa rédaction issue de la loi n° 2014-1655 du 29 décembre 2014, la taxe sur la valeur ajoutée est perçue, à l’importation, comme en matière de douane.”

The facts of that case should alarm every foreign importer. A French company imported goods through a freight forwarder and a licensed customs broker, paid the import VAT amount to its forwarder, but the broker went bankrupt without paying the customs office. Customs then issued a recovery notice (AMR, avis de mise en recouvrement, the formal bill used to collect tax debts) against the importing company itself as the real consignee of the goods, and the Cour de cassation rejected the company’s challenge: paying your intermediary does not discharge you if the Treasury never received the money. Check your customs broker’s payments with your own statements, never assume a forwarder’s invoice proves the Treasury was paid, and keep the import documents that let you recover that VAT on your CA3.

The same decision carries a second warning about procedure (Cour de cassation, commercial chamber, 24 January 2024, appeal no. 22-13.103). The importer argued it had received no prior adversarial discussion before the recovery notice, but the Court replied: “Lorsque les droits impayés ont été déclarés par le redevable ou son représentant, sans que l’administration remette en cause leur montant, le principe du respect des droits de la défense n’impose pas la mise en oeuvre d’un échange contradictoire préalable à l’émission de l’avis de mise en recouvrement.”

When the debt simply repeats what was declared, the administration can issue the recovery notice without a prior contradictory exchange. Do not count on a warning letter giving you time to organise: for declared but unpaid amounts, the AMR can arrive directly, and enforcement follows.

Online sellers face a parallel trap. If you sell goods over the internet to French consumers from another EU country, you may declare that VAT through the EU One-Stop Shop (OSS, the single EU portal for distance sales) instead of a French CA3. But goods stored in a French warehouse, goods shipped from French stock, or sales through a French fulfilment centre still pull you into the French return. Confirm the boundary with your adviser before skipping a CA3, because an OSS filing in another country never excuses a missing French return that France claims. And since 1 September 2026, France has rolled out mandatory electronic invoicing and electronic reporting for business transactions, which gives the tax office a near-real-time view of your sales: missing returns are now spotted by computers, not by chance. Our detailed English guide is here: French E-Invoicing from 1 September 2026: What Foreign Companies Selling in France Must Report.

II. Your return is late or wrong: what it costs and how to fix it this week

Once you know which return you owed, measure the damage honestly. French VAT penalties are automatic surcharges computed on the tax due: they do not require the tax office to prove bad faith for the basic rates, and they stack with late-payment interest and the possible loss of your input VAT deduction. The earlier you file on your own initiative, the lower the surcharge.

A. Surcharges of 10, 40 or 80 percent, lost deductions and the recovery notice

The basic penalty for a missing or late return is set by Article 1728 of the French Tax Code, which 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 : a. 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 ; b. 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 ;”

Three practical consequences follow. First, a CA3 filed spontaneously late, before any formal notice (mise en demeure, the registered letter ordering you to file), costs 10 percent of the VAT due: painful but contained. Second, once the SIE sends that formal notice, you have thirty days to file and still stay at 10 percent; after thirty days of silence the surcharge jumps to 40 percent. Third, the same article raises the surcharge to 80 percent where a hidden business activity is discovered, which is the risk for a foreign company that traded in France for months with no registration at all. Open the tax office’s letters the day they arrive, diary the thirty-day window, and never let a mise en demeure expire unanswered.

A wrong return is punished separately. Article 1729 of the French Tax Code provides: “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 ;”

Understated sales, invented input VAT or a VAT credit wrongly reclaimed therefore attract a 40 percent surcharge once the administration characterises the error as deliberate, and higher rates apply to fraud schemes and abuse of law. On top of every surcharge, late-payment interest runs month by month until the money actually reaches the Treasury, so the meter keeps turning while you hesitate. The assessment arrives as an AMR recovery notice, enforceable without a court judgment, and as seen above it can be issued without prior discussion when it simply collects declared amounts.

The most underestimated cost is not a surcharge at all: losing your input VAT deduction. Many founders reason that filing late only delays the payment, forgetting that the VAT they paid to suppliers can evaporate if declared too late. The Cour de cassation settled the point strictly on 1 October 2025, commercial chamber, appeal number 24-14.456, ruling number 495 F-D (read the full decision on the official Cour de cassation website): “Il résulte de la combinaison de ces textes que le client d’un assujetti, lorsque cet assujetti a opté pour le paiement de la TVA d’après les débits, doit déclarer la TVA déductible figurant sur les factures dans le mois de leur réception et au plus tard le 31 décembre de la deuxième année suivante. A défaut de déclaration dans ces délais, le crédit de TVA ne peut donner lieu ni à imputation ni à remboursement.”

Miss the declaration deadline and the VAT credit can neither be offset nor refunded: the money is gone for good, even if the supplier genuinely charged it. File every return on time even in a month with no sales, because a nil return preserves your rights and keeps the chain of deductions intact, while a missing return breaks it. Founders who discover a backlog of unfiled CA3s should therefore reconstruct input VAT month by month from supplier invoices now, before old periods fall outside the deduction window.

One last pillar of the system is invoicing discipline. Article 289 of the French Tax Code provides: “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 : a. Pour les livraisons de biens ou les prestations de services qu’il effectue pour un autre assujetti, ou pour une personne morale non assujettie, et qui ne sont pas exonérées en application des articles 261 à 261 E ;”

No valid invoice, no deduction: the SIE rejects input VAT claimed on estimates, pro-forma documents or missing invoices during every audit. Keep every supplier invoice for the full retention period, check that reverse-charge wording appears where required, and align the invoice dates with the months in which you claim the deduction.

B. The four-step fix: file, pay, correct and ask for relief

Act in this order and you will usually contain the damage within days. First, file the missing return immediately, on your own initiative, before any formal notice arrives. A spontaneous filing locks the surcharge at 10 percent of the VAT due under article 1728, whereas waiting for the mise en demeure starts the thirty-day countdown to 40 percent. File online through your professional tax account (espace professionnel on impots.gouv.fr, the portal of the DGFIP, the French public finances directorate), reconstruct each missing month separately rather than lumping everything into the current CA3, and file nil returns for months with no activity so the file shows continuity. If you are outside the EU with no French tax representative yet, appoint one in parallel: the return must still be filed on time, and representative paperwork never suspends the deadline.

Second, pay the VAT shown on the late return the same day, or at least pay the largest share you can. Surcharges are computed on the tax due and interest runs until payment, so every week of delay after filing still costs money. If cash is genuinely short, file anyway and immediately request a payment schedule (délai de paiement) from the SIE: a granted schedule does not erase the debt but it stops enforcement action such as bank seizures while you pay in instalments, and it shows good faith that later supports a relief request. Never reverse the order by negotiating first and filing later, because the surcharge clock only stops when the return is lodged and the interest clock only stops when the money lands.

Third, correct errors in returns you already filed before the tax office finds them. A corrective CA3 that fixes an understatement spontaneously is far cheaper than the same correction discovered during an audit, where the 40 percent deliberate-failure surcharge of article 1729 becomes the starting assumption. Recompute the reverse-charge lines, the import VAT lines and the OSS boundary for every corrected month, attach the missing supplier invoices, and keep a dated copy of each correction with proof of filing. Where a filed return wrongly charged French VAT on a transaction that belonged under reverse charge, correct it by credit note and reissue the invoice with the proper wording, then reflect both movements on the corrective return: netting the error silently inside the next normal CA3 invites the auditor to treat the whole period as unreliable.

Fourth, ask the SIE for discretionary relief of the surcharges (remise gracieuse des majorations) once the principal and interest are paid or scheduled. This written request explains the cause of the delay in concrete terms: a foreign founder unfamiliar with the CA3 calendar, a first hire who missed the filing, a change of accountant, a blocked bank account that delayed payment. Attach the filed returns, the payment proofs, the Kbis extract and evidence that the company is now compliant, and quantify the Effort already made. Relief is never automatic and full cancellation is rare, but partial reductions are regularly granted for first-time, good-faith delays, and a refusal can be escalated through a formal tax claim within the deadline printed on the notice, with a lawyer drafting the legal grounds. At the same time, calendarise the future: monthly CA3 reminders, quarterly checks against the 4,000-euro threshold, instalment dates for any simplified-regime company, and a pre-filing review of reverse-charge and import lines every single month.

Conclusion

A missed French VAT return feels like a crisis, but French law prices it precisely: 10 percent if you file on your own, 40 percent if you ignore the formal notice, 80 percent for hidden activity or fraud, plus interest and the possible loss of input VAT that was never declared in time. The foreign founder who files spontaneously, pays fast, corrects errors before the audit and then asks for relief in a documented letter will almost always pay far less than the founder who waits for the recovery notice to force action. Identify whether you owe a monthly CA3 or an annual CA12, check every cross-border sale against reverse charge and import VAT rules, keep every invoice, and treat each mise en demeure as a thirty-day emergency. VAT compliance in France is a monthly discipline, not an annual event, and once the routine is in place your company can trade, deduct and grow without fear of the next envelope from the SIE.

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