A French subsidiary can be funded by its foreign parent through share capital, a shareholder current account, or an intra-group loan. The resulting interest payment may look like an ordinary treasury transaction, but it creates several separate legal questions. Is the debt real? Is the rate supported by evidence from independent financing conditions? Can the French company deduct the interest when calculating French corporate income tax (impôt sur les sociétés, or IS)? Does France have a withholding obligation at the time of payment? Can a tax treaty reduce that obligation, and which documents must be held before money leaves France?

The answer is not a universal withholding rate applied to every payment made to a non-resident parent. The instrument, the recipient, the source rule, the parent’s tax residence, the beneficial-owner analysis, the existence of an applicable treaty, and any non-cooperative territory rule must be examined together. A French subsidiary also needs a corporate approval trail and accounting records that agree with the bank flows. A late attempt to reconstruct those documents after an audit is materially weaker than a file prepared when the facility is signed.

This guide is written for a foreign founder, finance director, or parent company financing a French subsidiary. It focuses on a practical, defensible process: establish the legal debt, price it as parties acting independently would have done, classify the income correctly, document treaty relief before payment, and preserve an evidence pack that can answer both a French tax question and a corporate-governance question. It complements the firm’s guide to doing business and creating a company in France, while addressing a narrower financing problem.

I. How should a French subsidiary document and price an intra-group loan?

A. When is interest deductible and what evidence must the foreign parent provide?

The first question is whether the payment is genuinely interest on a genuine debt. A parent cannot turn every transfer of cash into deductible interest merely by adding the word “loan” to an invoice or a bank reference. The documents, conduct, accounting treatment, repayment expectations, and financial capacity of the French subsidiary must point in the same direction.

Start with the legal relationship. Identify the lender, the French borrower, the ultimate controlling persons, the currency, the amount committed, the amount drawn, the purpose of the funds, the maturity, the repayment schedule, the interest dates, the default mechanics, any security, and the ranking of the debt. If the parent may demand repayment at any time, the subsidiary is thinly capitalised, the loan is repeatedly rolled over, and no repayment is ever contemplated, the tax authority may ask whether the arrangement behaves more like equity than ordinary debt. That does not decide the issue by itself, but it makes the distinction important.

An intra-group loan also needs to fit the regulated-activity framework. Article L. 511-7, I, 3° of the French Monetary and Financial Code recognises the ability to conduct treasury transactions with companies connected by capital links that give one of the companies effective control over the others. The text refers to the power to “Procéder à des opérations de trésorerie avec des sociétés ayant avec elle, directement ou indirectement, des liens de capital”. This is a legal basis for a properly structured group treasury transaction; it is not a blanket permission to operate a public lending business or a substitute for checking the group’s facts.

The agreement should explain why the French entity needs the funds. Working capital, launch costs, acquisition funding, equipment, a temporary liquidity gap, and a defined project are easier to analyse than an unexplained permanent balance. The loan should be approved by the competent body under the French company’s articles and the parent’s own corporate rules. Keep the signed agreement, board or shareholder minutes, delegations of authority, proof of the transfer, and the ledger entry together. The foreign parent should retain its certificate of incorporation, constitutional documents, tax-residence evidence, ownership chart, and proof that the signatory had authority to bind it.

For a French société par actions simplifiée (SAS), an agreement with a parent or a person connected to the company can also fall within the related-party convention procedure. Article L. 227-10 of the French Commercial Code covers agreements involving, among others, the president, a manager, a shareholder holding more than 10% of voting rights, or the controlling company. The statutory report and approval route must be checked against the company’s exact governance structure. The article states that “Les associés statuent sur ce rapport.” The approval is a corporate safeguard. It does not prove that the rate is arm’s length, that the debt is commercially necessary, or that a treaty exemption applies.

The basic deduction rule is in Article 39, 1, of the French General Tax Code (CGI), under which “Le bénéfice net est établi sous déduction de toutes charges”. That principle does not make every intra-group charge deductible. The expense must be connected with the business, recorded in the correct accounting period, supported by evidence, and not excessive or artificial. Interest must therefore be tied to a real financing need and to a debt that a business could reasonably have accepted.

The more specific related-party limitation appears in Article 212 of the CGI. It addresses interest on amounts made available by an associated or related enterprise and says, in its opening words, “Les intérêts afférents aux sommes laissées ou mises à disposition d’une entreprise”. In practical terms, the French company must test the contractual rate against the statutory reference rate or, where higher, against the rate it could have obtained from an independent financial institution in analogous conditions. The higher independent rate is not self-proving: it requires a credible comparison of the borrower, debt, currency, maturity, security, subordination, and market date.

Article 212 is only one layer. The deduction can also be affected by the net financial expense limitation in Article 212 bis of the CGI. The article refers to a ceiling based on “dans la limite du plus élevé des deux montants suivants : 1° Trois millions d’euros ; 2° 30 %”. The relevant tax computation depends on the company’s net financial expenses, tax EBITDA, group status, and the other statutory adjustments. A group should not assume that a commercially supportable rate automatically produces a full current-year deduction. Conversely, a limitation of deduction does not transform the interest into a dividend; the accounting, withholding, and legal classification still have to be performed separately.

The special rule in Article 238 A of the CGI deserves particular attention where the foreign lender benefits from a privileged tax regime. The French debtor must be able to demonstrate that the expense corresponds to a real transaction and is not abnormal or excessive. An intercompany schedule that merely shows a balance and an annual percentage is not enough if the counterparty’s tax regime, beneficial ownership, and commercial substance create additional risk. Obtain an up-to-date residence and tax-status package rather than relying on an old group certificate.

The parent’s evidence should answer five questions. First, who legally lent the money, and who ultimately owns or controls that lender? Second, where did the money come from and where did it go? Third, why was debt chosen instead of equity or a dividend? Fourth, how was the rate determined on the date of commitment and on each material renewal? Fifth, what would have happened if an independent lender had required repayment, security, covenants, or a lower amount? If the parent is a conduit with no employees, capital, decision-making, or ability to bear the risk, the group should expect closer scrutiny of the beneficial-owner and substance analysis.

Do not confuse a shareholder current account, known in French practice as a compte courant d’associé or CCA, with a casual cash sweep. The ledger should identify advances, withdrawals, accrued interest, repayments, foreign-exchange movements, and any capitalised interest. A CCA may be useful for a start-up, but an indefinite debit or credit balance can have company-law, tax, and director-liability implications. The parent should reconcile its receivable to the French subsidiary’s payable at every closing.

The INPI explanation of beneficial owners is useful for the control map. INPI is the French National Institute of Industrial Property and operates the business-formality infrastructure. Its guidance explains that a beneficial owner is a natural person exercising effective control directly or indirectly, including through more than 25% of capital or voting rights. That filing is not a treaty certificate and does not decide the tax result, but an ownership chart used for treaty relief should be consistent with the French company’s declared corporate information.

Finally, separate interest from other parent-company charges. A payment labelled “interest and management support” should not be left as one undifferentiated line. Management, technical, accounting, software, trademark, guarantee, and financing services can each have a different transfer-pricing and source-tax treatment. If the parent provides services, preserve service descriptions, deliverables, time records, allocation keys, and benefit evidence. A financing file is stronger when it does not use interest to conceal an unrelated service fee.

B. How do transfer-pricing, interest-rate and net-finance rules apply?

Transfer pricing asks whether the French subsidiary paid more than an independent borrower would have paid, or whether the parent received a return that the functions and risks did not support. Article 57 of the CGI allows the administration to restore profits indirectly transferred between enterprises under common control. The analysis is not limited to the nominal percentage. It includes the amount of debt, the ability to service it, the lender’s functions, guarantees, implicit group support, covenant package, currency, maturity, ranking, and the alternatives available to the borrower.

Build the rate memo on the date the parent commits the funds, not only at year-end. It should state the currency, drawdown date, term, amortisation, security, seniority, borrower credit profile, purpose, and any parent guarantee. Search for comparable external borrowings by the French company, comparable third-party loans to similarly rated borrowers, or a reliable market spread analysis. A group treasury policy can be a starting point, but it is not a comparable by itself. The memo should explain exclusions as well as selected comparables: a secured euro loan cannot be copied into an unsecured, subordinated dollar loan without an adjustment.

If the parent charges a fixed rate on a revolving facility, review whether the commitment fee, unused amount, default margin, and currency basis are separately priced. If the facility is subordinated or has no realistic maturity, the group should test whether the instrument contains an equity-like feature. If the French subsidiary has no independent rating, record the methodology used to derive a borrower risk category. If the parent guarantees the facility, analyse whether the guarantee changes the rate and whether a guarantee fee is itself justified. Avoid circular reasoning in which the interest rate is justified by a parent guarantee and the guarantee fee is justified by the same unexplained interest rate.

French administrative litigation shows why a file must demonstrate the value and the counterparty, rather than merely show that money changed hands. In Conseil d’État, 16 March 2016, no. 372372, the court examined a pricing difference involving related foreign transactions and accepted that the administration had proved an advantage to be restored, using the formulation “l’administration doit être regardée comme établissant l’existence d’un avantage qu’elle est en droit de réintégrer”. The lesson for an interest file is not that every difference is unlawful; it is that unexplained differences need a contemporaneous commercial explanation.

In Conseil d’État, 11 June 1982, no. 16187, a payment to a United States parent was analysed as an advantage that “constituait un avantage particulier consenti, sans nouvelles contreparties”. That decision is a warning against paying a related party without identifying what the French company received and why the amount was justified. For financing, the counterparty is normally access to funds on defined terms; the agreement and the cash-flow evidence must make that exchange visible.

The opposite point matters as well. In Conseil d’État, 30 March 1987, no. 52754, the court recognised that “l’avantage accordé à la société suisse avait une contrepartie suffisante”. A French subsidiary should therefore document the business benefit of the financing: it might have avoided a bank refusal, supported a launch, funded an acquisition, or covered a short-term cash requirement on terms that were commercially available to the group. The existence of a parent relationship is not a reason to reject a useful loan; it is a reason to make the comparison more disciplined.

The rate must also be considered with the amount. A parent cannot necessarily lend an amount that an independent lender would never have advanced and then defend the interest percentage alone. Prepare a debt-capacity analysis showing expected revenue, operating costs, cash runway, debt-service capacity, existing bank facilities, and the assumptions used. If the parent funded an acquisition, keep the acquisition model and evidence of the subsidiary’s expected benefit. If the financing was emergency funding, explain the emergency conditions and why the rate reflects risk without becoming punitive.

French courts also insist on a real comparative demonstration. CAA Versailles, 9 February 2021, nos. 18VE04115 and 19VE00405 concerned costs borne in a foreign-group structure and observed: “Ces faits révèlent que la Société Générale a supporté des coûts incombant normalement à ses filiales étrangères.” The principle applies by analogy to a financing review: identify which entity bears the funding cost, which entity benefits from the funds, and whether the contractual flow places the cost in the right company.

In CAA Paris, 6 June 2024, no. 22PA04259, the court stated that “aucune disposition du code général des impôts n’impose à une société commerciale de faire des bénéfices”. This does not authorise an artificial interest rate or a loss-making financing arrangement. It means that the administration still has to establish the relevant tax advantage; a French subsidiary’s lack of profit, on its own, is not a substitute for an arm’s-length analysis. A start-up can incur a loss, but the group must show why the financing and the pricing remain commercially coherent.

The treatment of guarantees, cash pooling, and back-to-back funding deserves its own line of enquiry. If the foreign parent borrows from a bank and on-lends to France, compare the parent’s external funding cost with the French subsidiary’s risk and the treasury function actually performed. A spread may be justified by coordination, liquidity, currency, or risk assumption, but it should not be calculated as an unexplained percentage. In a cash pool, establish who controls the pool, who can access liquidity, where funds are deposited, how overnight balances are priced, and who bears the risk of a bank or participant failure.

Net financial expense rules can produce a different result from the transfer-pricing adjustment. Assume, for illustration, that a subsidiary owes €1,000,000 and pays 6%, or €60,000, for a year. A reference rate or independent borrowing analysis might support only 4.5%, or €45,000, unless the subsidiary proves why its actual risk justifies the higher rate. The potential €15,000 pricing adjustment is one question. Whether the remaining €45,000 is currently deductible under Article 212 bis is another. Whether France must withhold on the payment is a third. Keep separate workpapers for each.

The annual review should not be a mechanical roll-forward. Ask whether the French company’s credit profile changed, whether the facility was drawn as planned, whether the maturity was extended, whether interest was paid or capitalised, whether a bank facility became available, whether the parent’s residence or tax status changed, and whether France or the parent’s state changed its treaty position. A rate agreed in a low-interest market may be indefensible after a major change in currency, risk, or maturity. The file should record the date and conclusion of the review, even when the conclusion is that no amendment is needed.

II. How can the group avoid withholding-tax and payment failures?

A. When must France withhold tax, and how do treaty or ETNC rules change the analysis?

Withholding tax begins with classification. A French subsidiary should not ask only, “Is the parent abroad?” It should ask, “What income is being paid, to whom, under which French source rule, and does a treaty or special anti-abuse rule apply?” Ordinary interest on a loan, interest on a current account, a bond coupon, a dividend, a royalty, a guarantee fee, and a management service fee do not automatically share the same treatment.

Article 124 of the CGI treats various interest and similar returns as income, including interest on current accounts. A shareholder current-account balance should therefore be identified clearly in the accounts and in the tax analysis. Do not call the payment a dividend merely because it is made to a shareholder, and do not call a dividend interest merely because the parent financed the company.

The source rules in Article 119 bis of the CGI concern specified income from French capital, including the categories referred to by the statute. The fact that a foreign parent receives money from a French subsidiary does not, without classification, establish that the ordinary interest on every bilateral loan falls within the dividend withholding regime. A payment on a negotiable instrument, a bond, or another instrument may have a different analysis from a straightforward shareholder loan. Confirm the instrument and the source rule before selecting a rate or filing route.

The ETNC rules are a separate hazard. ETNC means État ou territoire non coopératif, or non-cooperative State or territory. Article 125 A, III, of the CGI contains a special withholding mechanism for certain income whose debtor is established or domiciled in France and which is paid outside France to an ETNC. Article 187 of the CGI sets rates for the statutory categories, including special rates in ETNC situations. A group must verify the current list, the precise income category, the payment date, and any statutory exception. It should never apply an ETNC rate from an old spreadsheet without checking the current legal text.

Treaty relief is not a slogan such as “the parent is tax resident in the United Kingdom” or “the group has a treaty.” The relevant treaty must be identified, the article on interest must be read, and the recipient must meet its conditions. The analysis can involve residence, beneficial ownership, a permanent establishment receiving the interest, the debt claim’s connection with France, limitation-on-benefits or anti-abuse rules, associated-enterprise provisions, and the treaty’s procedural requirements. Some treaties allocate a reduced source-tax right; some require a residence certificate and a refund or relief-at-source process; domestic law can still matter where the treaty condition is not met.

Use the French tax administration’s guidance for a French company paying income to non-residents as an official starting point, but do not treat general guidance as a substitute for the specific treaty. The page distinguishes categories of payments and explains that some payments to non-residents require withholding and reporting. The finance team should prepare a written classification memo stating why the payment is ordinary loan interest, a dividend, a service fee, a royalty, or another category.

This distinction prevents a common error. Article 182 B of the CGI targets specified payments to non-residents, including income from professional, non-commercial, intellectual-property, artistic, and sporting activities. It can matter for a parent’s management or technical services, but it should not be used mechanically to label ordinary loan interest as a service payment. Conversely, the group should not place genuine services in a loan-interest line to avoid a service withholding analysis.

Where the relevant capital-income withholding falls within the scope of the statute, Article 1673 of the CGI provides that the withholding is declared and collected under rules fixed by regulation. The operational filing and payment calendar must be confirmed for the exact category and payment channel. Keep proof of the tax return, payment, gross amount, net amount, date, recipient, and any relief applied. If a treaty procedure requires relief at source, retain the form or certificate used and the basis on which the payer concluded that the conditions were met.

The treaty file should normally include a current tax-residence certificate for the legal recipient, a group chart, the lender’s constitutional documents, confirmation of beneficial ownership, a statement about any permanent establishment connected with the debt, the executed loan agreement, and the legal analysis of the relevant treaty article. If the parent is fiscally transparent, has assigned the receivable, or acts as an agent, the named recipient may not be the person entitled to treaty relief. Escalate that issue before payment instead of assuming that an incorporation certificate answers it.

The term “beneficial owner” does not mean simply the entity shown on the bank account. Ask who has the right to enjoy the interest, who can use it, whether a contractual or legal obligation passes it to another person, and whether the recipient has real control over the income. This tax analysis must remain consistent with the corporate ownership and control information maintained for the French company. A mismatch between the treaty certificate, the ownership chart, and the beneficial-owner filing will be difficult to explain.

Payment mechanics matter. If the subsidiary pays €60,000 gross and no withholding is due, the bank instruction and ledger should say so. If withholding is due, decide whether the agreement states a gross amount or a net amount protected by a gross-up clause. A gross-up changes the economic cost and may itself need to be considered in the transfer-pricing memo. If the subsidiary capitalises unpaid interest, offsets it against another intercompany balance, or books it as a payable without a cash transfer, determine when the relevant tax event and reporting obligation arise. “No cash left the bank” is not always a complete answer.

If the parent’s residence, beneficial ownership, or treaty eligibility is uncertain, pause the payment long enough to obtain a documented answer. That is a payment-control decision, not a conclusion that withholding must be applied at the highest possible rate. Where relief was not obtained at source, the group should record whether a refund claim or other procedure is available, who will file it, and how the cash and accounting entries will be reconciled while the claim is pending.

B. What should a foreign founder do before paying, filing and defending the position?

A foreign founder should treat the first interest payment as a closing checklist, not as a routine bank transfer. The following sequence gives the French finance team, the parent, and the external advisers a common record.

1. Map the parties and the instrument. Identify the borrower, lender, ultimate owners, legal form, residence, tax status, currency, drawdowns, maturity, security, ranking, and any intermediary. State whether the instrument is a bilateral loan, a shareholder current account, a bond, a cash-pool balance, or another claim. If the parent’s receivable has been assigned, include the assignment chain.
2. Confirm corporate authority. Check the French articles, delegation rules, parent approvals, signatures, related-party convention procedure, and any restrictions on borrowing or granting security. For an SAS, document the route under Article L. 227-10 when applicable. The corporate approval should describe the transaction accurately; it should not approve an amount or rate that differs from the signed agreement.
3. Test the business purpose and debt capacity. Keep the budget, cash-flow forecast, acquisition model, launch plan, or emergency-funding explanation that justified the funds. Record why debt was selected, the expected repayment source, and the effect of the debt on solvency. Update the analysis if the facility is extended, increased, or repeatedly capitalised.
4. Prepare the transfer-pricing memo. Explain the comparable data, date, currency, borrower risk, term, security, subordination, parent guarantee, and any adjustment. Reconcile the chosen rate to the agreement, invoices or statements, general ledger, and bank entries. Analyse commitment fees, default margins, guarantee fees, and cash-pool spreads separately.
5. Run the French deduction tests. Apply Article 39, the related-party interest rule in Article 212, the net financial expense limit in Article 212 bis, and the real, non-abnormal, non-excessive expense test in Article 238 A where relevant. Calculate the accounting interest, the tax deduction, any deferred or restricted amount, and any transfer-pricing adjustment as separate figures.
6. Classify the payment for source tax. Decide whether it is ordinary interest, a capital-income payment subject to a particular withholding rule, a dividend, a royalty, a service fee, a guarantee payment, or another category. Check the payment date, the recipient’s status, the current ETNC position, and any permanent-establishment connection. Do not rely on a label in the payment reference.
7. Assemble treaty evidence before payment. Obtain the current residence certificate, beneficial-owner evidence, corporate and ownership chart, treaty article, relief-at-source form or refund procedure, and a signed internal conclusion. If a document is not available, record whether the payment should be delayed, made with withholding, or escalated for a formal opinion.
8. Execute and reconcile. Match the gross interest, withholding if any, net remittance, bank value date, ledger, parent receivable, and tax filing. Store the receipt and filing confirmation. If a gross-up or offset is used, calculate the additional amount and explain its treatment.
9. Review annually and at every material change. Refresh the rate, residence certificate, treaty analysis, beneficial-owner position, debt capacity, ETNC check, and outstanding balance. Re-perform the review after a refinancing, acquisition, parent restructuring, assignment, change of currency, change of control, or significant change in French tax law.

The evidence pack should be readable by someone who did not negotiate the transaction. Put an index at the front. A useful index can contain:

• the executed agreement and amendments;
• parent and subsidiary corporate approvals and signing authorities;
• ownership, control, and beneficial-owner documents;
• drawdown notices, bank statements, repayment schedules, and ledger reconciliations;
• the rate, credit, debt-capacity, cash-pool, guarantee, and transfer-pricing analyses;
• the tax-residence certificate and treaty-relief documents;
• the source-tax classification, filing, payment receipt, and any refund correspondence;
• the French tax computation showing Article 212 and Article 212 bis workpapers;
• the annual review note and the list of assumptions that changed or remained constant.

When a French tax audit begins, preserve the original versions and the dates of creation. A file generated after the first information request can still contain truthful evidence, but it may not prove what the directors, treasury team, and parent understood when the money was advanced. Answer the question asked, provide the agreement and reconciliation first, and avoid sending a large unindexed export that hides the relevant facts. If the administration challenges the rate, respond with the comparable analysis and commercial facts rather than only repeating the contractual percentage.

If a mistake is discovered before the audit, quantify it. The group may need to correct the French tax computation, pay withholding, amend a return, adjust the parent’s accounting, revise the agreement prospectively, or seek treaty relief. Do not backdate a loan, replace a missing board approval with an invented minute, or alter a rate memo so that it appears to have existed earlier. A transparent correction with an action plan is safer than an inconsistent historical file.

The financing should also be coordinated with the wider French-company compliance calendar. The parent may already have separate files for the French business account, VAT registration, beneficial-owner filings, annual accounts, and corporate tax. The same legal entity, ownership chain, and signatory information should be used across those files. INPI’s business-formality resources explain the French formalities infrastructure; they do not replace the tax analysis, but they help the group keep its corporate identity data aligned.

The group should distinguish a subsidiary from a French branch. A subsidiary is a French legal person with its own debt, accounts, and corporate approvals. A branch is an establishment of the foreign company, so a payment between the head office and its French establishment is not analysed as interest paid by one separate legal person to its parent in exactly the same way. The financing, permanent-establishment, profit-attribution, and withholding questions can therefore change. A founder should resolve that structural distinction before adapting this checklist.

One final control is communication. The person pressing “pay” may be in the foreign parent’s treasury team, while the French accounting team books the expense and a local adviser prepares the tax filing. Write down who owns each conclusion: legal debt, rate, deduction, withholding, treaty evidence, and filing. A short sign-off matrix with names, dates, and source documents prevents a common failure in international groups: each participant assumes that another participant verified the issue.

Conclusion

Interest paid by a French subsidiary to a foreign parent is defensible when the group can show a real debt, a real business purpose, a commercially supported price, and a complete tax classification. Article 39 does not replace the related-party limits in Article 212, the net financial expense rule in Article 212 bis, or the special evidence required by Article 238 A. A signed agreement does not replace an arm’s-length analysis, and corporate approval does not create treaty relief.

The safest sequence is to document the loan before drawdown, approve it under the French company’s governance rules, price it using the borrower’s actual risk, reconcile every movement, classify the income before payment, and obtain residence and beneficial-owner evidence before relying on a treaty. Check ETNC rules and service-fee rules separately. Preserve the tax computation, filing proof, and annual review so that the parent and the French subsidiary tell the same story.

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