You live in London, New York or Dubai. Two years ago you set up a French company, usually a SAS, the société par actions simplifiée, France’s flexible limited company, and the bank agreed to lend to it only because you signed a personal guarantee, in French a cautionnement. The company received its Kbis, the official identity certificate issued by the greffe, the clerk’s office of the commercial court, and trading began. Then cash ran short, instalments were missed, and a letter from the bank’s lawyer arrives at your foreign address: you personally owe 80,000, 150,000 or 300,000 euros, payable now, in France. Panic is understandable, but payment on the spot is not your only option. French law surrounds personal guarantors with some of the strongest protective rules in Europe, and several of them were confirmed by the Cour de cassation, France’s supreme court for civil and commercial matters, in 2025 and 2026. This guide explains, entirely from official texts and recent supreme court decisions, how a foreign director or shareholder checks whether the guarantee is even valid, how yearly information failures cut the interest bill, how a manifestly excessive amount is reduced to what you could actually afford, and how a French judge can grant you up to two years to pay while freezing enforcement. Every French acronym is translated, every decisive statement is linked to its official source, and every remedy described here can be used from abroad through a French avocat, a lawyer admitted to a French Bar.

I. The bank demands payment under my French personal guarantee: what must it prove before I pay a single euro?

A. Was my guarantee validly signed, for a capped amount, as a joint or a simple guarantee?

A French personal guarantee is a contract in which a person, the caution, promises a creditor that she will pay the debtor’s debt if the debtor defaults. Article 2288 of the Civil Code states it word for word: “Le cautionnement est le contrat par lequel une caution s’oblige envers le créancier à payer la dette du débiteur en cas de défaillance de celui-ci. Il peut être souscrit à la demande du débiteur principal ou sans demande de sa part et même à son insu.” In plain English, the bank can ask you to guarantee your French company’s loan even though you signed nothing on the day the company was formed, and the guarantee can cover obligations that already exist or will exist later. Article 2292 confirms that breadth: “Le cautionnement peut garantir une ou plusieurs obligations, présentes ou futures, déterminées ou déterminables.” That is why a guarantee signed for “all sums owed by the company” can surprise a foreign founder: it may legally extend beyond the single loan you had in mind, unless the deed itself caps it.

The first document to demand from the bank, from abroad, is therefore the signed guarantee deed itself, with every page. Two questions decide the rest of your defence. First, are you a simple guarantor or a joint-and-several guarantor, in French a caution solidaire? Article 2290 provides: “Le cautionnement est simple ou solidaire. La solidarité peut être stipulée entre la caution et le débiteur principal, entre les cautions, ou entre eux tous.” A simple guarantor enjoys two shields: the bénéfice de discussion, the right to require the bank to seize the company’s assets first, and the bénéfice de division, the right to split the claim between several guarantors. A joint-and-several guarantor gives up both shields, and the bank can come straight after her personal assets, including assets outside France once the French judgment is recognised. Banks almost always impose joint-and-several liability on foreign directors, which makes the second question even more important.

The second question is whether the deed respects the mandatory handwritten formality, because a failure here destroys the guarantee entirely. Since the reform of 2021, in force from 1 January 2022, article 2297 of the Civil Code provides: “A peine de nullité de son engagement, la caution personne physique appose elle-même la mention qu’elle s’engage en qualité de caution à payer au créancier ce que lui doit le débiteur en cas de défaillance de celui-ci, dans la limite d’un montant en principal et accessoires exprimé en toutes lettres et en chiffres. En cas de différence, le cautionnement vaut pour la somme écrite en toutes lettres. Si la caution est privée des bénéfices de discussion ou de division, elle reconnaît dans cette mention ne pouvoir exiger du créancier qu’il poursuive d’abord le débiteur ou qu’il divise ses poursuites entre les cautions. A défaut, elle conserve le droit de se prévaloir de ces bénéfices. La personne physique qui donne mandat à autrui de se porter caution doit respecter les dispositions du présent article.” Read that text against your own deed. Did you personally handwrite the undertaking, with the maximum amount written out both in words and in figures? If the figures and the words differ, only the words count. Did you expressly acknowledge giving up the rights to require prior pursuit of the company and division among guarantors? If that sentence is missing, you keep both shields even though the deed calls you a joint-and-several guarantor. For guarantees signed before 2022, an older version of the same formality applied, so the applicable date matters and your lawyer will check which wording governed on your signing date. The official business information service describes the same framework for company founders on its enterprise portal: the service-public.fr guide to guaranteeing a debt with a cautionnement walks through formation, drafting rules and the creditor’s information duties in plain language.

For a foreign founder, this first audit is often the most profitable hour of the whole dispute. Guarantees signed hastily at a distance, returned by email, pre-filled by the branch, or signed through a representative without the representative reproducing the formality, are the ones that most often fail the article 2297 test. And because the sanction is nullity of your undertaking, a winning formality defence ends the case: no capped amount, no reduced amount, nothing owed at all. If you set up your company following the standard formation path, from capital deposit to Kbis to VAT number, described in this guide to setting up a company in France as a foreign founder, keep the guarantee file next to the formation file: the two belong together, and the bank must produce a complete, compliant deed before it can demand a euro from you.

B. Did the bank warn me before I signed and inform me every year afterwards?

A validly signed guarantee is only the beginning of the bank’s obligations. French law then imposes three information and warning duties on professional creditors, and each breach takes money directly off your bill. The first duty arises before signature. Article 2299 of the Civil Code provides: “Le créancier professionnel est tenu de mettre en garde la caution personne physique lorsque l’engagement du débiteur principal est inadapté aux capacités financières de ce dernier. A défaut, le créancier est déchu de son droit contre la caution à hauteur du préjudice subi par celle-ci.” In other words, when the company’s own borrowing was already beyond its means, the bank had to warn you, and its silence costs it the part of the claim that the warning would have prevented.

The Cour de cassation applies this duty with a nuance that foreign directors must know honestly. On 12 February 2025, in case no. 23-13.899, Société générale against a guarantor who was an engineer, a company shareholder and repeatedly president of companies in the group, the commercial chamber recalled: “la banque est tenue à un devoir de mise en garde à l’égard d’une caution non avertie lorsque, au jour de son engagement, celui-ci n’est pas adapté aux capacités financières de la caution ou s’il existe un risque de l’endettement né de l’octroi du prêt garanti, lequel résulte de l’inadaptation du prêt aux capacités financières de l’emprunteur.” The key phrase is caution non avertie, an uninformed guarantor. An experienced business director can be treated as an informed guarantor who needed no warning, and in that 2025 case the guarantor’s claim for damages failed for exactly that reason. Do not hide this from your strategy: if you ran several companies and read balance sheets for breakfast, plead the warning duty secondarily, and put your main effort into the yearly-information and disproportion defences below, where director experience does not protect the bank at all.

The second duty is the annual information letter, and it is the bank’s most frequently breached obligation. Article 2302 of the Civil Code requires the professional creditor, every year before 31 March and at its own expense, to tell every individual guarantor the principal, interest and charges still owed at the previous 31 December: “Le créancier professionnel est tenu, avant le 31 mars de chaque année et à ses frais, de faire connaître à toute caution personne physique le montant du principal de la dette, des intérêts et autres accessoires restant dus au 31 décembre de l’année précédente au titre de l’obligation garantie, sous peine de déchéance de la garantie des intérêts et pénalités échus depuis la date de la précédente information et jusqu’à celle de la communication de la nouvelle information.” Missed letters mean forfeiture of the contractual interest and penalties for the whole gap period. On a 200,000 euro loan at 5 percent left uninformed for three years, that single breach erases roughly 30,000 euros of interest, and the debtor’s interim payments are then credited against principal first, which shrinks the base for future interest as well.

The third duty triggers at the first missed payment. Article 2303 orders the bank to inform every individual guarantor of the principal debtor’s default as soon as the first missed payment stays unpaid one month after due date: “Le créancier professionnel est tenu d’informer toute caution personne physique de la défaillance du débiteur principal dès le premier incident de paiement non régularisé dans le mois de l’exigibilité de ce paiement, à peine de déchéance de la garantie des intérêts et pénalités échus entre la date de cet incident et celle à laquelle elle en a été informée. Dans les rapports entre le créancier et la caution, les paiements effectués par le débiteur pendant cette période sont imputés prioritairement sur le principal de la dette.” Banks that “wait and see” while penalties accumulate, then present the guarantor with a maximised bill two years later, pay for that silence with the same forfeiture.

Two recent supreme court rulings make these information duties sharper still. On 26 November 2025, in case no. 23-19.203 against a Crédit Mutuel bank that had guaranteed a 52,000 euro business loan, the commercial chamber held: “Il résulte de ce texte que l’obligation d’information annuelle de la caution doit être respectée jusqu’à l’extinction de la dette garantie, laquelle ne procède pas de la clôture du compte courant.” The bank had argued that closing the company’s current account ended its yearly-letter duty; the Court answered no, only extinction of the guaranteed debt ends it, quashed the appeal judgment on that point and sent the case back to the Angers court of appeal. In the same decision, the Court added a procedural gift to guarantors: when you oppose the bank’s interest claim by invoking forfeiture for missing annual information, you raise an ordinary substantive defence, so you do not need to have spelled it out in the operative part of your final pleadings. The Court’s words: “lorsqu’une caution, pour obtenir le rejet de la demande de l’établissement de crédit créancier tendant au paiement d’intérêts échus, lui oppose la déchéance de ceux-ci, faute de l’avoir informée annuellement conformément aux dispositions de l’article L. 313-22 du code monétaire et financier, alors applicable, elle invoque un moyen de défense au fond”, a defence on the merits. Practically, ask the bank in writing for copies of every annual letter and every default notice since signature. Every missing year is a discount, and the bank, not you, must prove it sent them.

II. Living abroad, how do I reduce the amount and obtain time to pay?

A. Is the guaranteed amount manifestly disproportionate to my income and assets at the signing date?

The heaviest weapon of the individual guarantor is the disproportion rule, now codified at article 2300 of the Civil Code: “Si le cautionnement souscrit par une personne physique envers un créancier professionnel était, lors de sa conclusion, manifestement disproportionné aux revenus et au patrimoine de la caution, il est réduit au montant à hauteur duquel elle pouvait s’engager à cette date.” Three features make this text remarkable. First, the assessment date is frozen at signature: later wealth never validates an excessive guarantee, and later poverty never creates disproportionality that did not exist at the start. Second, the comparison covers both income and assets together: a modest salary with a large property portfolio can support a bigger guarantee than the salary alone suggests, while heavy existing debts count against you. Third, the sanction is reduction, not cancellation: the judge cuts the guarantee down to the amount you could reasonably have undertaken, which on a 300,000 euro guarantee signed on a 60,000 euro income can mean dividing the claim by three or four.

The freshest illustration comes from the Cour de cassation itself, on 17 June 2026, in case no. 24-20.640, Société générale against a guarantor of the company Orion Holding, later renamed OHM. Between 2010 and 2012 the bank had granted the company five loans totalling 1,790,087 euros in principal plus a cash facility, and the guarantor had signed a chain of guarantees. The Paris court of appeal had declared the guarantees manifestly disproportionate, and the commercial chamber reviewed that assessment in detail: “la cour d’appel, qui a ainsi pris en compte les revenus de M. [Q], a néanmoins considéré, eu égard à la valeur du patrimoine financier de la caution, que les cautionnements litigieux n’en restaient pas moins manifestement disproportionnés aux biens et revenus de la caution.” Note the method the supreme court endorses: yearly income of 120,000 euros taken from the signed asset statement, financial assets valued realistically, later guarantees examined against the unchanged situation, and each guarantee in the chain tested separately. The Court partly quashed on the later guarantees and sent them back to Paris, which shows judges examine guarantee by guarantee rather than waving through a whole series. For your file, that means assembling the snapshot of your means exactly as they stood on signing day: foreign tax returns, payslips, property valuations, bank statements, existing loans, and the asset form you filled in for the bank, because the bank will use your own form against you and you must correct it with evidence.

Two tactical points complete the picture. The guarantor carries the burden of proving manifest disproportionality at the conclusion date, so start collecting that snapshot before the bank sues, not after. And the comparison must use net, realisable wealth: shares in the very company that just defaulted, or in subsidiaries loaded with the debt the loans financed, may be worth little, a point litigated precisely in the June 2026 case over the nominal value of company shares. A foreign founder whose visible wealth sits abroad should also expect the bank to demand disclosure of foreign assets and income; organising translated, certified evidence early, through your avocat and your accountant, turns a painful disclosure into the engine of your reduction claim. Finally, remember that article 2293 frames the whole analysis by requiring a valid underlying obligation in the first place: “Le cautionnement ne peut exister que sur une obligation valable. Néanmoins, celui qui se porte caution d’une personne physique dont il savait qu’elle n’avait pas la capacité de contracter est tenu de son engagement.” If the company’s loan itself were void, the guarantee would fall with it, a rare but worth-checking argument when the lending file shows anomalies.

B. Can I get a court-ordered payment schedule, use my company’s defences and recover the money later?

Even a valid, proportionate guarantee does not mean immediate ruin, because French judges can rewrite the payment timeline. Article 1343-5 of the Civil Code provides: “Le juge peut, compte tenu de la situation du débiteur et en considération des besoins du créancier, reporter ou échelonner, dans la limite de deux années, le paiement des sommes dues. Par décision spéciale et motivée, il peut ordonner que les sommes correspondant aux échéances reportées porteront intérêt à un taux réduit au moins égal au taux légal, ou que les paiements s’imputeront d’abord sur le capital. Il peut subordonner ces mesures à l’accomplissement par le débiteur d’actes propres à faciliter ou à garantir le paiement de la dette. La décision du juge suspend les procédures d’exécution qui auraient été engagées par le créancier. Les majorations d’intérêts ou les pénalités prévues en cas de retard ne sont pas encourues pendant le délai fixé par le juge. Toute stipulation contraire est réputée non écrite. Les dispositions du présent article ne sont pas applicables aux dettes d’aliment.” These délais de grâce, grace periods, are tailor-made for the foreign guarantor: up to two years of instalments, possibly at the reduced legal interest rate with payments credited to principal first, no late penalties during the schedule, ongoing seizures suspended, and any contract clause purporting to exclude them treated as unwritten. The judge weighs your situation, including residence abroad, irregular foreign income and currency constraints, against the bank’s needs, so a documented payment proposal with foreign bank statements and a realistic monthly figure is far more persuasive than a bare request for time.

While negotiating or litigating that schedule, the guarantor can also borrow the company’s own weapons. Article 2298 states: “La caution peut opposer au créancier toutes les exceptions, personnelles ou inhérentes à la dette, qui appartiennent au débiteur, sous réserve des dispositions du deuxième alinéa de l’article 2293. Toutefois la caution ne peut se prévaloir des mesures légales ou judiciaires dont bénéficie le débiteur en conséquence de sa défaillance, sauf disposition spéciale contraire.” Concretely, if the loan’s interest rate is challengeable, if payments were misallocated, if the bank committed a fault in granting or managing the credit, or if part of the debt is time-barred, you can raise every one of those arguments even though the company itself stays silent, whether it is dormant abroad or in insolvency proceedings. The only arguments you cannot borrow are the legal protections the debtor enjoys precisely because it defaulted, such as insolvency stays, unless a special provision says otherwise. This is why your avocat will audit the company’s loan file as carefully as your guarantee deed: a flaw in the principal debt reduces your accessory debt automatically.

And if, despite everything, you must pay, payment is not the end of the story. Article 2308 gives the paying guarantor a personal claim back against the company: “La caution qui a payé tout ou partie de la dette a un recours personnel contre le débiteur tant pour les sommes qu’elle a payées que pour les intérêts et les frais. Les intérêts courent de plein droit du jour du paiement. Ne sont restituables que les frais postérieurs à la dénonciation, faite par la caution au débiteur, des poursuites dirigées contre elle. Si la caution a subi un préjudice indépendant du retard dans le paiement des sommes mentionnées à l’alinéa premier, elle peut aussi en obtenir réparation.” Interest runs automatically from the day you pay, and independent losses can be compensated on top. Declare your claim in the company’s insolvency proceedings if any are open, register it, and preserve it: a guarantee paid in 2026 can still be recovered from a company that returns to profit, or from co-guarantors. The closing rule of the chapter confirms the symmetry between the two debts in article 2313: “L’obligation de la caution s’éteint par les mêmes causes que les autres obligations. Elle s’éteint aussi par suite de l’extinction de l’obligation garantie.” Whatever extinguishes the company’s debt, payment, set-off, or release, extinguishes your guarantee to the same extent, so every euro the company itself repays, every successful challenge to the loan, and every limitation period that runs in the company’s favour works for you as well.

All of this is litigated in France, in French, normally before the tribunal judiciaire, the general civil court, for individual guarantors, with representation by a French avocat required or strongly advised. Living abroad changes none of your rights; it only changes the logistics. Powers of attorney can be signed at a distance, exhibits can be exchanged electronically through your lawyer, and your personal appearance is rarely indispensable when your file speaks: the signed deed with or without the handwritten note, the bank’s annual letters or their absence, the asset snapshot at signature date, and a reasoned payment proposal. French judgments publish through open data on the Cour de cassation’s Judilibre database and on Légifrance, which is exactly how the 2025 and 2026 decisions quoted in this guide were verified, and your own case will be decided under the same published rules. Start with a registered letter demanding the complete guarantee and lending file, diary every deadline, from the one-month information notice to the two-year grace horizon, and never sign a repayment acknowledgement or a new guarantee amendment without advice, because an ill-worded letter can waive defences worth tens of thousands of euros.

Conclusion

A French bank’s demand letter to a foreign guarantor looks final, but French law treats it as the opening of a four-stage audit, not the end of the story. First, the deed: without your personal handwritten undertaking stating the maximum in words and figures, with express waiver of prior pursuit and division for joint guarantees, the bank holds nothing. Second, the bank’s own correspondence: every missing annual statement before 31 March and every late default notice strips contractual interest and penalties from the claim, year after year, until the debt itself is extinguished, as the Cour de cassation confirmed in November 2025. Third, the amount: a guarantee manifestly excessive against your income and assets at signature is cut down to what you could afford, guarantee by guarantee, under the method the supreme court applied again in June 2026. Fourth, the timeline and the defences: up to two years of court-ordered instalments with suspended enforcement, every company defence borrowed for your account, and a full personal recovery action against the company once you have paid. Run these four checks in order, through a French avocat who can litigate from Paris while you stay abroad, and the terrifying six-figure demand usually shrinks to a manageable, scheduled, legally verified sum. The founders who pay the full sticker price are rarely those who owed it; they are those who answered the demand letter with a wire transfer instead of a file request. With the method in this guide, and the formation discipline of setting up the French company correctly from day one, you now belong to the group that negotiates from the texts, not from fear.