A French bank may ask a British resident to complete a tax-residence self-certification and then restrict the account while its compliance team checks the answer. That sequence is alarming, but the request does not automatically mean that the bank has assessed French tax, accused you of fraud or decided that Brexit has made your account unlawful. It usually combines two different controls: the Common Reporting Standard (CRS), which identifies accounts that may be reportable to a tax authority, and French anti-money-laundering checks, which test identity, the purpose of the relationship and the origin of funds.

The practical problem is that a bank’s message may use one vague word—“compliance”—for several different events. A missing self-certification, an unexplained change of address, a mismatch between France and the United Kingdom, an unusual transfer and a proposed account closure do not have the same legal consequences. Your response should therefore establish what is actually blocked, which document is missing, which tax residence you are declaring and whether the bank is imposing a temporary operational restriction or giving notice to terminate the account.

This guide is for a British citizen living in France or maintaining a French personal account after Brexit. It explains the evidence to assemble, the distinction between CRS and tax assessment, the limits of the French droit au compte (right-to-account procedure), and the steps available if access is not restored. It does not concern the purchase of French property or the creation of a company.

I. Why is a French bank asking for tax-residence evidence and freezing my account?

A. What does CRS self-certification require from a British resident?

CRS means the Common Reporting Standard, the international framework under which participating jurisdictions exchange financial-account information. France and the United Kingdom both operate automatic exchange rules. In the United Kingdom, HM Revenue & Customs (HMRC) describes automatic exchange of information as a system under which financial institutions review accounts and report information about reportable account holders. The current HMRC guidance on automatic exchange of information explains the CRS framework and the continuing review of accounts.

For a personal account, a self-certification is the customer’s signed statement of the jurisdiction or jurisdictions in which the customer is tax resident and of the relevant taxpayer identification number, commonly called a TIN. A French bank may also ask for your name, address and date of birth. This is not the same document as a French tax return, an HMRC tax-residence certificate or a bank statement. It is the bank’s evidence for classifying the account under the reporting rules.

French law gives the request a specific basis. Article 1649 AC of the General Tax Code requires financial institutions to collect and report information needed for automatic exchange. The article says that “les titulaires de compte remettent aux institutions financières les informations nécessaires à l’identification de leurs résidences fiscales”. The quotation means that the customer must supply the information needed to identify tax residence; it does not mean that the bank can invent a residence on the customer’s behalf. Read the official wording of Article 1649 AC of the French General Tax Code before signing a form that contains a conclusion you dispute.

The implementing rules are set out in the decree of 5 December 2016 concerning automatic exchange of financial-account information. For a new individual account, Article 46 requires the French reporting financial institution to obtain a self-certification so that it can determine the customer’s tax-residence address or addresses and to check whether the answer is plausible against information collected when the account is opened, including anti-money-laundering documents. The official text is available at Article 46 of Decree No. 2016-1683. The bank is therefore allowed to compare the form with your address, identification document and onboarding file.

A British passport does not, by itself, establish UK tax residence. Citizenship, domicile, immigration status and tax residence are different concepts. A British citizen can be tax resident in France, tax resident in the United Kingdom under the relevant UK rules, or treated as resident in one country under a treaty tie-breaker after both domestic systems have been considered. Conversely, a French residence permit does not automatically answer the tax question. The self-certification should state the position supported by your facts and the applicable rules, not simply the country of your passport.

Multiple tax residences are possible. The French tax guidance on account holders recognises that an individual can be fiscally resident in more than one jurisdiction. The official BOFiP guidance on account holders explains that a natural person or an entity may be tax resident in one or several states or territories. If you spend substantial time in France while retaining a home, work, family or economic base in the UK, do not delete one country from the form merely because the bank’s online questionnaire appears to expect a single answer.

The information normally expected in a valid self-certification includes:

• Your full legal name, matching the passport and the bank’s account record.
• Your current residential address and, if relevant, a separate correspondence address.
• Each jurisdiction in which you consider yourself tax resident for the relevant period.
• The correct TIN for each reportable jurisdiction, or a clear explanation if that jurisdiction does not issue one to a person in your circumstances.
• Your date of birth and the signature or authentication required by the bank’s form.
• The date on which the information was provided and an explanation of any change since your previous self-certification.

The French tax administration’s BOFiP guidance on self-certification states that the declaration should be dated and signed or authenticated and contain the name, address, tax-residence jurisdiction or jurisdictions, TIN and date of birth. It can cover more than one tax residence. A form that says “France only” when your facts point to a possible UK residence can trigger a later review, while a form that lists the UK without explaining that you moved permanently to France can create a different inconsistency.

Do not confuse a TIN with an immigration number. In France, the relevant number is generally the numéro fiscal, the tax identification number shown on tax correspondence. In the United Kingdom, the identifier requested depends on your status and the reporting context. It may be a taxpayer reference or another identifier accepted for the particular form; a National Insurance number is not automatically the correct answer to every CRS question. If the bank’s form does not explain which identifier it wants, ask for the name of the jurisdiction, the field description and the acceptable reason for not having a number before entering data.

A change of circumstances can invalidate or call into question a previous declaration. Moving your main home from the UK to France, obtaining a French tax number, returning to UK employment, selling the French home, changing your family’s habitual residence or opening a new account can all justify a request for updated information. HMRC’s internal guidance says a self-certification remains valid unless the institution knows or has reason to know that it is incorrect. It also explains that the institution must obtain a new valid self-certification or a reasonable explanation and supporting documents when circumstances change. See HMRC’s guidance on changes to a self-certification.

That “reason to know” standard matters in practice. A French bank may see a new French address, a French residence card, regular French salary credits, a French tax notice or a long period of activity in France. It may then ask whether the original UK-only declaration remains correct. The bank is not deciding a treaty dispute in the same way as a tax court; it is deciding whether it has enough reliable information to classify and report the account. Give the bank a reasoned answer, and reserve any disagreement with a tax assessment for the tax authority or the appropriate appeal route.

HMRC’s guidance also explains that a self-certification should allow the financial institution to determine tax residence and should be checked for plausibility against anti-money-laundering and know-your-customer information. It lists the core identity information and confirms that there is no single mandatory form. See HMRC’s official guidance on the content of self-certifications. A French bank can therefore use its own bilingual questionnaire, provided the substance of the information required by the law is captured.

The reporting does not mean that every card payment is sent annually to HMRC. CRS reporting generally concerns account-holder identity, tax residence, TIN, account balance or value and specified income such as interest, dividends or gross proceeds. The bank’s separate anti-money-laundering review may look at individual transactions, payment destinations and the origin of money. This distinction is important when you write to the bank: an answer about tax residence may not satisfy a separate request for proof of funds.

There is also a UK tax compliance dimension. A French account may be a foreign financial account for a US person, but a British resident should separately consider UK tax reporting on interest and other income, as well as any French filing obligations after becoming resident in France. The UK government’s guidance on UK income when living abroad is a useful starting point for UK-source income, but it does not determine French residence. The bank’s CRS form should never be used as a substitute for tax advice in either country.

B. When can a tax-residence query become an operational freeze?

The bank’s power to pause activity usually comes from the interaction of identification, customer knowledge and transaction-monitoring duties. Article L. 561-4-1 of the Monetary and Financial Code requires vigilance measures to be based on an assessment of risk. The assessment can consider the customer, the products or services, the transaction channels, geography and the destination of funds. The official provision is available at Article L. 561-4-1 of the Monetary and Financial Code.

Before or during the relationship, Article L. 561-5 requires the institution to identify the customer and verify the identification using reliable evidence. It refers to “tout document écrit à caractère probant”, meaning written evidence with probative value. See Article L. 561-5. A bank can therefore ask for a passport, proof of address, residence documentation or other evidence where the existing file no longer permits a reliable identification.

Article L. 561-5-1 adds a purpose test. The institution collects information about the object and nature of the relationship and keeps that information current. The text requires it to “recueillent les informations relatives à l’objet et à la nature de cette relation”. See Article L. 561-5-1. For a personal account, the answer might be ordinary living expenses in France, pension receipts, rent, family support or payment of French taxes. If the account was opened for one reason but now receives large transfers connected with a property sale, inheritance or business, the bank may ask for a new explanation.

Article L. 561-6 requires “une vigilance constante” throughout the business relationship and an examination of transactions consistent with the bank’s updated knowledge of the customer. See Article L. 561-6. A request several years after the account opened is therefore not necessarily unlawful or evidence that the bank has discovered a tax offence. The bank’s knowledge may have become incomplete because your address changed, your passport expired, your tax status changed or your transaction pattern became different from the original profile.

When the risk appears high, Article L. 561-10-1 requires enhanced vigilance measures. See Article L. 561-10-1. An international customer who has moved after Brexit, keeps accounts in both countries, receives a pension from the UK and transfers money between jurisdictions may be placed in a higher-review workflow without that classification proving misconduct. The bank should still request information connected to a legal purpose rather than asking you to make an open-ended disclosure of every aspect of your private life.

Article L. 561-10-2 requires an enhanced examination of an operation that is particularly complex, unusually large or apparently lacking an economic justification or lawful purpose. It refers to an “examen renforcé” and to information about the origin and destination of funds, the purpose of the operation and the identity of the beneficiary. See Article L. 561-10-2. This is the legal reason a tax-residence question may be accompanied by requests for a sale completion statement, inheritance papers, pension statements or bank statements showing the build-up of savings.

The decisive provision for a freeze is Article L. 561-8. If the institution cannot satisfy the identification or relationship-purpose obligations, it does not execute the operation or establish or continue the business relationship. The article says that it “n’exécute aucune opération” in that situation. See Article L. 561-8. The same provision expressly addresses a credit institution designated through the right-to-account procedure. A bank cannot treat a designation as permission to ignore mandatory identity and anti-money-laundering controls.

The restriction can affect only one function or the whole usable balance. A transfer may be held while card payments continue. Online banking may show the balance while outbound payments fail. Direct debits may be rejected even though incoming pension payments arrive. The bank may call the restriction a “security block”, “compliance review”, “account limitation” or “temporary suspension”. Those labels are not enough. Ask which operations are unavailable, the date of the first restriction, whether scheduled payments will be honoured, and what document will allow a review.

A CRS query and an anti-money-laundering query can overlap but they should not be collapsed into one accusation. A tax-residence form classifies the account for automatic exchange. An origin-of-funds request explains a particular movement or accumulated balance. An identity request establishes who controls the account. If the bank asks for all three, prepare three indexed answers. This makes it harder for a compliance agent to mark the file incomplete because a tax document was supplied in response to a source-of-funds question.

A French bank may be unable to tell you whether it has made or considered a suspicious-transaction report. The rules protecting the reporting process mean that an answer such as “we cannot give you the reason” does not necessarily prove that no review exists. You can still ask for the objective category of missing information, the documents accepted, the status of ordinary living payments and the complaint route. Do not demand that an employee disclose a confidential internal alert if the law prevents disclosure; focus the written request on restoring lawful access and completing the file.

The bank’s special AML duty also has a defined legal purpose. In a publication discussing Commercial Chamber, 4 March 2026, appeal no. 24-19.588, the Court of Cassation recalls that the customer-vigilance obligation has “pour seule finalité la lutte contre le blanchiment de capitaux et le financement du terrorisme”. That decision does not grant a customer an automatic right to every payment during a review. It does show why the bank’s AML powers should not be presented as a general answer to an unrelated dispute, such as a disagreement over the amount of French income tax.

Retention rules can also explain why the bank asks for older material. Article L. 561-12 of the Monetary and Financial Code requires certain identification and transaction information to be kept for five years after the end of the relationship or after the operation. See Article L. 561-12. You may therefore be asked to reconnect a recent transfer to a source that arose several years ago. Provide only relevant, proportionate documents, but do not destroy the chain showing how the money moved from the original source to the French account.

Finally, a freeze is not automatically a closure. A closure is a decision to end the account relationship; a freeze is a restriction on activity that may be lifted after review. Service Public explains that a bank may generally close an active account by following the account agreement and giving written notice, normally at least two months, subject to exceptions. See Service Public’s page on bank-initiated account closure. That ordinary notice rule should not be used to assume that every urgent compliance restriction must wait two months. Ask the bank which event it has actually initiated.

II. What should a British resident do to unblock the account and challenge an excessive restriction?

A. Which documents and written requests should you send?

Start by preserving evidence before changing anything. Download or screenshot the bank’s message, the account balance, failed-payment notices, the date and time of each restriction, and the exact list of documents requested. Save the original email headers where possible. If a branch employee speaks to you by telephone, send a short follow-up message stating what was said and asking the bank to correct any misunderstanding. A chronological file is more persuasive than a series of angry messages that does not establish when access was lost or which documents were supplied.

Then identify your legal and factual position for the period under review. Write down where you lived, where you worked, how many days you spent in France and the UK, where your immediate family lived, where your main home was available, and where your economic interests were concentrated. A tax-residence analysis is not reduced to a passport or a number of nights. Under Article 4 B of the General Tax Code, one key French test refers to “leur foyer ou le lieu de leur séjour principal”. Read Article 4 B of the French General Tax Code and compare it with the UK statutory-residence analysis rather than choosing the answer that seems most convenient.

Prepare a residence bundle with a short index. It may contain:

• Your passport and, if relevant, your French residence card or other document proving the lawful basis of your settled stay.
• A recent French proof of address, such as a lease, utility bill, insurance certificate or tax document, with an explanation if the address is shared or seasonal.
• Your French tax number and the latest tax notice or filing acknowledgement, if you have filed in France.
• UK HMRC correspondence, a UK tax-residence certificate or other evidence relevant to your UK status, if the bank has asked about UK residence.
• A travel-day schedule and a short explanation of any split-year or transition period after moving.
• Documents explaining a spouse’s or civil partner’s different residence, if the bank’s form has treated the household as a single tax person.

Do not call every document a “tax-residence certificate”. A French income-tax notice may show that a return was processed but may not answer every treaty question. An HMRC letter may confirm a particular status or period but may not prove where your centre of vital interests was under French domestic law. Label each document accurately and state what it proves. If the bank wants a formal certificate, ask which authority must issue it, the period covered, the language accepted and whether a certified translation is required.

Prepare a separate identity and account-purpose bundle. Check every spelling, hyphen, middle name and date against the passport. Explain whether the account receives a UK State Pension, a private pension, rental income, salary, dividends, family support or proceeds from a sale. If your ordinary use is changing because you are moving permanently to France, say so. The purpose explanation should be short and concrete: “monthly living expenses and pension receipts”, “payment of French household bills” or “temporary receipt of inheritance pending distribution”, rather than a vague assertion that the money is personal.

For a source-of-funds review, follow the money backwards. A pension source may be documented by pension statements and the originating bank’s statements. Employment savings may require payslips, tax returns and bank statements. A property sale may require the completion statement, the solicitor’s client-account statement and the statement showing receipt of proceeds. An inheritance may require the grant of probate or equivalent succession document, the notary’s certificate, the estate account and the transfer record. A family gift may require a written gift document and evidence of the donor’s funds. Redact unrelated account numbers and spending details, but leave names, dates, amounts and account ownership visible enough to connect the chain.

Send the self-certification through the bank’s secure channel and keep a copy of the signed form. If the bank’s form forces you to choose one tax-residence jurisdiction when you have a genuine multi-country situation, do not select at random. Ask for a manual form or a compliance-team review. State in writing that the answer depends on the facts and that you are supplying the explanation to avoid an inaccurate declaration. A false answer may create more serious problems than a short delay.

Ask the bank to confirm whether your response is complete. A useful message includes five requests:

1. Confirm the account’s current operational status and list the payment functions that are restricted.
2. Identify each missing or rejected document by name and explain whether a copy, certified copy or translation is required.
3. Confirm the tax-residence jurisdictions and TIN fields that remain unresolved.
4. State whether the review concerns CRS classification, identity, source of funds, transaction monitoring, account closure or more than one category.
5. Confirm how urgent living expenses, pension credits and essential direct debits will be handled while the review is pending.

The fourth request does not ask the bank to reveal a confidential suspicious-transaction report. It asks for an objective description of the administrative category and the documents required to close the file. If the answer is necessarily limited, ask the bank to say so and to provide its internal complaint address. Use neutral language. The aim is to produce a record that a mediator, regulator or judge can understand without reconstructing the dispute from informal calls.

If the bank has rejected a document, ask why. Common problems include a document that is too old, a scan that is unreadable, an address that does not match the account, a name that differs from the passport, a tax form that lacks a signature or a certificate that covers the wrong year. Correct the defect directly. If the rejection appears legally irrelevant, explain the relevance in one paragraph and offer an alternative. A bank may not accept a document simply because it is official; it may need a document that answers the specific identification or residence field.

For an English-speaking customer, ask whether the bank will accept documents in English or requires a traduction certifiée, a certified translation. Do not have every page translated without first asking; that can create unnecessary cost and delay. A concise English cover note can identify the French terms used by the bank: résidence fiscale means tax residence, justificatif de domicile means proof of address, origine des fonds means source of funds, and bénéficiaire effectif means beneficial owner. Use the French term from the bank’s message in the subject line so the compliance team can route the answer correctly.

Keep enough money available through a lawful alternative account to pay rent, utilities, insurance, taxes and food while the review continues. This is a risk-management step, not an admission that the bank is entitled to keep your funds indefinitely. Do not move money to conceal its origin or ask another person to receive funds on your behalf without a clear explanation. A sudden series of transfers between family accounts can create the very anomaly that the bank is asking you to explain.

If the account is jointly held, establish which holder the request concerns. One holder’s change of address or tax residence can trigger a review of the whole account. If a power of attorney exists, identify the grantor and attorney and supply the document if requested. If the account belongs to an estate, stop treating it as an ordinary personal account: the bank may require the notary, executor or heirs to establish authority and tax status. The answer must match the legal holder, not simply the person who is sending the email.

Where the bank’s general terms allow it, make a formal complaint after supplying the documents. Mark the message “réclamation” (formal complaint) and set out the requested outcome: restore specified payment functions, confirm the self-certification, return a wrongly rejected transfer or provide written notice if the bank intends to close the account. Attach the evidence index, not a disorganised archive. Keep the original complaint and proof of receipt. A bank’s customer-service conversation and its formal complaint process are not interchangeable.

For a cross-border file, keep a tax matrix with four columns: fact, document, country concerned and conclusion requested from the bank. For example, “main home available in France”, “French lease and utility bill”, “France”, “include France as a possible tax-residence jurisdiction”; or “UK pension payer”, “annual pension statement”, “United Kingdom”, “identify UK-source payment, not automatically UK tax residence”. This prevents the bank from receiving a stack of documents without knowing which question each document answers.

B. What remedies exist if the bank will not restore access or closes the account?

First determine whether you are dealing with an existing-account restriction, a refusal to open a new account or a closure notice. The remedies differ. The French right-to-account procedure is not a universal way to force a bank to reactivate an account that is already open. Article L. 312-1 of the Monetary and Financial Code concerns a person who is deprived of a deposit account in France and meets the statutory conditions. The official provision is available at Article L. 312-1.

A British citizen who is legally domiciled in France may fall within the category of a person domiciled in France, subject to the other conditions and the absence of another French deposit account. A person who merely visits France while remaining resident in the UK should not assume that British nationality alone gives access to the same procedure. After Brexit, the separate category for an individual legally resident in another European Union Member State does not become available simply because the applicant is British. Obtain the refusal evidence and have the statutory eligibility checked against your actual residence.

If you are eligible and have no other French deposit account, request a written refusal attestation from the bank. If the bank does not respond within the relevant period, the evidence of your application and receipt may become important. The Banque de France can then designate an institution under the right-to-account procedure. Its official right-to-account information explains the refusal evidence and the documents generally required. The process creates access to a basic deposit account, not an automatic right to overdraft, premium card, foreign-currency service or investment product.

The designated bank still has to conduct compliance checks. Article L. 561-8 expressly applies where a credit institution designated through Article L. 312-1 cannot satisfy the identification or relationship-purpose requirements. That is why a British applicant should prepare the identity, address, tax and source-of-funds file before the designation rather than assuming that the Banque de France route removes the need for CRS information. A designation can cure an access problem; it cannot cure an unidentified customer or an unexplained transaction.

If the current bank gives a closure notice, read the account agreement and the reason stated, if any. Service Public’s official guidance explains that a bank may generally close an active account even when it is operating normally, provided it respects the agreement and gives written notice, normally two months. It also explains that a customer cannot simply contest the bank’s commercial decision as such, but can seek help where the notice, procedure or resulting conduct is defective. The page is available at Clôture d’un compte bancaire par la banque.

That general rule has important exceptions. A bank may need to act more quickly where law, sanctions, fraud risk or an unresolved identification problem prevents it from continuing the relationship. If the notice is silent, ask whether the bank is giving ordinary contractual notice or relying on a legal restriction. Do not assume that the bank must describe a protected internal report. Instead, ask for the closure date, the destination and method for paying out the positive balance, the treatment of pending payments, and the documents you need to open a replacement account.

A closure is not a tax assessment. It does not establish that you were resident in France, resident in the UK or liable for a particular amount. If the bank has sent information to a tax authority under CRS, that exchange may lead to questions from the authority, but the authority must apply its own tax rules. Keep the self-certification, correspondence, account statements and documents that show what you declared. If a tax authority later challenges your residence, answer that process separately and within its deadline.

Use the bank’s internal complaint process first when the problem is a missing document, a wrong name or a failure to react after a complete response. If no practical solution follows, request the contact details of the appropriate banking mediator, called the médiateur bancaire. Mediation does not normally order a bank to ignore anti-money-laundering duties, and it may not be suitable for an urgent payment restriction, but it creates a structured review of the contractual complaint. The bank’s refusal and the date of the complaint should be retained.

A report to the Autorité de contrôle prudentiel et de résolution (ACPR), the French banking supervisor, is different from a claim for immediate access to funds. A supervisor may receive information about a regulatory practice, but it generally does not act as your private lawyer or replace an urgent court application. If the account is needed for essential payments or a substantial lawful transfer, obtain advice quickly on the contract, the evidence and the competent court. A French lawyer can assess whether an urgent référé application, a claim for payment, a challenge to an irregular closure or another procedure is available on the facts.

The legal basis for a court claim should be chosen carefully. If the issue is a payment that was wrongly refused or not executed, the relevant payment-services rules and the account agreement may be more important than the CRS provisions. If the issue is an unlawful closure, the notice and contractual obligations matter. If the issue is an inability to complete identification, the court will expect you to show precisely what reliable documents were supplied and why the bank’s response was disproportionate or procedurally defective. Do not plead that the bank breached AML duties merely because you dislike the questions; the special vigilance rules serve the fight against money laundering and terrorist financing.

Article L. 312-1-1 of the Monetary and Financial Code requires written information about the account’s terms and a written account agreement setting out the principal rules for opening, operating and closing the account. See Article L. 312-1-1. Ask for the version of the agreement and tariff applicable when the restriction or closure occurred. A customer cannot evaluate notice, fees or payment treatment without the contractual documents.

If the bank says your self-certification is incomplete, it may also refer to the French reporting penalties. Article L. 102 AG of the Tax Procedures Code sets out a process for identifying account holders who have not supplied the required information after a further request and the expiry of the relevant period. See Article L. 102 AG. Article 1740 C of the General Tax Code provides a financial penalty for a failure to provide information covered by the reporting rules in the circumstances defined by law. See Article 1740 C. The possibility of a penalty is not a reason to sign an inaccurate form; it is a reason to respond promptly and accurately or explain why a field cannot be completed.

Ask the bank to confirm whether its request is a first request, a reminder or a second request under its reporting procedure. The distinction can affect the urgency and the consequences of silence. If you have already answered, attach the earlier submission and proof of delivery. Many disputes arise because a bank’s automated system sends a reminder after a document was delivered to a branch but not linked to the compliance file.

If your account contains pension income or money needed for daily life, explain the immediate harm without overstating it. Give the dates of rent, mortgage, care, insurance and tax payments. Request a limited solution, such as allowing identified essential direct debits or transferring the undisputed positive balance to an account in your name, while the review of a separate transaction continues. A targeted request is easier for the bank to assess than a demand for unrestricted activity when the file still contains a genuine identity or source-of-funds gap.

Do not use a third party’s account to evade the restriction. Do not open a series of accounts with inconsistent tax-residence answers. Do not backdate a self-certification or alter a statement. If a document contains a genuine error, mark the error, explain it and ask the issuing body for a corrected version. A transparent correction normally creates a better record than a form that appears complete but later conflicts with a tax return or immigration document.

Finally, connect the banking dispute to the correct wider file. If the account is being used to receive a UK pension, the pension’s tax treatment and the France–UK treaty should be examined separately. If funds arose from a French property sale, the sale and capital-gains file is separate from the bank’s source-of-funds review. If funds come from an inheritance, the succession and estate documents should be coordinated with the bank’s authority checks. The existing guide on a French bank closing a British resident’s account after Brexit addresses the distinct closure scenario; this article concerns the earlier tax-residence and CRS evidence problem.

A concise escalation pack for a lawyer should contain the account agreement, the bank’s request, every document sent, proof of delivery, the failed-payment list, the chronology, the self-certification, the relevant tax correspondence from France and the UK, and a statement of the outcome you need. Add a clear financial schedule showing the funds at risk and the urgent payments affected. This allows the legal analysis to focus on the precise restriction rather than spending the first meeting reconstructing a missing paper trail.

There is no universal deadline for every bank response, complaint or court procedure. The date of a refusal, the date of a closure notice, the date a payment failed and the date a tax authority writes to you can each start a different timetable. Record them separately. If a court or authority has already imposed a deadline, follow that document rather than relying on the general timeframes described in a bank’s customer-service message.

Conclusion

A French bank’s request for CRS self-certification is a request to classify and report the account correctly; it is not, by itself, a finding that you owe French tax. A restriction may nevertheless become operational when the bank cannot verify identity, understand tax residence, establish the purpose of the relationship or explain the origin of a transaction. The key is to separate the questions and answer each with the right evidence.

Send an accurate, signed self-certification, identify every relevant tax-residence jurisdiction, provide the correct TIN or a documented explanation, and keep a complete copy. Supply residence evidence separately from source-of-funds evidence. Ask the bank in writing what is blocked, what remains missing and whether it is reviewing a temporary restriction or giving closure notice. If the bank closes the account, distinguish the ordinary contractual notice rules from urgent legal exceptions. If you have no French deposit account and are legally domiciled in France, investigate the right-to-account procedure, remembering that it does not remove CRS or anti-money-laundering checks.

Where access to essential funds remains restricted, a formal complaint, banking mediation and urgent legal advice may be appropriate. The strength of the case will depend on the documents, the chronology, the account agreement and the exact reason for the restriction—not simply on the fact that the customer is British or that the transfer crossed the Channel.

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