For a British citizen living in France, a power of attorney can be the difference between completing an urgent legal step and having a bank, notary or public authority put the file on hold. Brexit did not make every UK power of attorney unusable in France. It did, however, make the cross-border proof exercise more visible: the recipient must be satisfied about the document’s authenticity, the identity and capacity of the person who signed it, the exact powers granted, the continuing effect of the mandate, and the French translation and legalisation formalities that apply to that document. A document that is perfectly effective in the United Kingdom may therefore be incomplete for a French recipient.

The word “power of attorney” also covers several different instruments. An ordinary authority to deal with a bank is not the same as an English and Welsh lasting power of attorney (LPA), and neither should be confused with a French mandat de protection future, meaning a French future-protection mandate designed to operate if the person can no longer look after their own interests. The practical response to a refusal is not to order an apostille in isolation. It is to identify the act, map the authority required, build a document pack, and ask the recipient to state precisely what is missing.

This guide is about the authority of a person to act in France, including for banking, administration, succession and personal affairs. It does not replace the separate rules for buying French property or creating a company. Those matters can require their own formal instruments, tax checks and professional process.

I. Can a UK power of attorney be used in France after Brexit?

A. What apostille and French translation does a British document need?

A UK document is not made substantively valid merely because it bears an apostille. An apostille is an international certificate that authenticates the origin of a public document: in practical terms, it confirms the signature, the capacity in which the signatory acted and, where relevant, the seal or stamp. It does not certify that the powers in the document are wide enough, that the donor understood the document, or that a bank must accept the instruction.

The GOV.UK legalisation guidance explains that the Legalisation Office checks the signature, stamp or seal on a document and attaches an apostille when the document can be legalised. The guidance gives a power of attorney as an example of a document that may first need certification by a UK notary public or solicitor. “Notary public” is a UK professional function; it is not automatically equivalent to a French notaire, the civil-law public officer who authenticates certain legal instruments. That distinction matters when the French recipient is asking whether the instrument has the evidential status required for a particular act.

Start by classifying the document. A solicitor’s certified copy, a signature witnessed by a solicitor, a deed prepared by a UK notary public, an ordinary letter of authority, and an LPA are not interchangeable. If the document is private, the UK authority may need to certify the signature or convert the relevant act into a public form before an apostille can be issued. French public-service guidance on apostille and legalisation states that an apostille certifies the origin, signature and capacity of the signatory, not the content of the document; it also explains that a private document cannot simply receive an apostille as though it were a public act.

For a French recipient, the normal document pack should be prepared in the following order, subject to the instructions of the bank, notary or authority receiving the file:

• the original power of attorney or a properly certified copy, with every page and schedule included;
• evidence of the donor’s identity and address, and of the attorney’s identity and address;
• the UK certification of the signature or public character of the document, where required;
• the apostille issued through the competent UK process, attached to the document or certified copy as instructed;
• a complete French translation by a traducteur habilité, meaning a translator authorised or listed for official legal translations in France, if the recipient requires one;
• evidence that the mandate is still in force, has not been revoked, and has not been limited by a later document; and
• a short explanatory letter identifying the precise act the attorney must perform and the clause that grants that power.

Service-Public’s page on a foreign public document used in France identifies a notarial act or procuration as a type of public document that may require formal authentication. “Procuration” is the French word commonly used for a power of attorney. The same guidance explains that the applicable formality depends on the convention and on the country concerned, and that a French-authorised translation may be required. A recipient should be asked whether it wants the translation before or after the apostille, because attaching a translation in the wrong sequence can create a new delay even when the underlying document is sound.

For an English or Welsh document, the UK side should be checked on the day of submission. The GOV.UK lasting-power-of-attorney guidance distinguishes property and financial affairs LPAs from health and welfare LPAs, explains the registration process, and states that an LPA is legally binding only in England and Wales. Scotland and Northern Ireland have different instruments and registration systems. A British family should therefore identify the jurisdiction in which the document was made before describing it to a French institution as an LPA.

The French recipient is entitled to ask a question that an apostille cannot answer: what exactly may the attorney do? Under Article 1984 of the French Civil Code, “Le mandat ou procuration est un acte par lequel une personne donne à une autre le pouvoir de faire quelque chose pour le mandant et en son nom.” In English, a mandate or power of attorney is an act by which one person gives another the power to do something for the principal and in the principal’s name. The provision describes the relationship; it does not give a general document unlimited powers.

Article 1985 of the French Civil Code says, “Le mandat peut être donné par acte authentique ou par acte sous seing privé, même par lettre.” That means a mandate can be granted by a formal authentic deed or by an acte sous seing privé, meaning a private deed signed by the parties, even by letter. The provision also recognises verbal authority subject to proof rules. This flexibility in the domestic French definition does not remove the documentary requirements of a cross-border file. A bank may still require a written form, an authenticated signature, an apostille, a translation and its own compliance checks.

Do not assume that a general authority includes a power to perform a serious disposal act. Article 1988 of the French Civil Code provides that a mandate expressed in general terms covers only acts of administration, while a power to sell, mortgage or perform another act involving ownership must be express. If a French recipient is being asked to accept a document for a high-value act, the clause should identify the act and, where relevant, the asset, account, transaction, counterparty and limits. A clause saying “manage my affairs” may be adequate for routine administration but not for signing a deed or transferring ownership.

The safest question is therefore not “Does Brexit invalidate my power of attorney?” It is “What French act must be done, what authority does that act require, and how will the recipient verify the UK document?” A document pack built around that question is more likely to be accepted than a generic request for recognition.

B. Is an ordinary power of attorney the same as an English and Welsh lasting power of attorney?

No. An ordinary power of attorney usually gives authority for identified acts while the donor has capacity. It can be limited by purpose, amount, account, date or transaction. It may end on revocation, on a date stated in the document, or on an event specified by the governing law. An LPA is a statutory instrument made under the law of England and Wales, registered before it can be used, and designed to continue when the donor loses capacity. The distinction affects both the evidence that France may request and the answer to the question whether the authority is still operative.

GOV.UK explains that an LPA may appoint attorneys for property and financial affairs, including dealing with bank accounts, paying bills, managing investments or selling a home, and may separately address health and welfare. A French bank will not necessarily treat the label “LPA” as self-explanatory. It may ask for the registered instrument, the registration evidence, confirmation that no revocation has been recorded, proof that any condition for use has occurred, and a French translation. A health and welfare LPA should not be presented as authority to operate a bank account merely because both instruments are called LPAs.

A French mandat de protection future is a different domestic mechanism. Article 477 of the French Civil Code states: “Toute personne majeure ou mineure émancipée ne faisant pas l’objet d’une mesure de tutelle ou d’une habilitation familiale peut charger une ou plusieurs personnes, par un même mandat, de la représenter pour le cas où […] elle ne pourrait plus pourvoir seule à ses intérêts.” In English, a qualifying adult may appoint one or more people to represent them if they later cannot look after their own interests. It is a French legal instrument with French execution formalities, not a translation of an English LPA.

A French future-protection mandate may be made by authentic deed before a French notaire or under private-deed rules. The private-deed route is governed by Article 492 of the French Civil Code, which says: “Le mandat établi sous seing privé est daté et signé de la main du mandant. Il est soit contresigné par un avocat, soit établi selon un modèle défini par décret en Conseil d’Etat.” The attorney must also accept the mandate by signing. If a British resident is planning for future incapacity in France, it can be useful to compare the UK instrument with this French route before a crisis occurs. That is a planning decision, not an automatic consequence of Brexit.

The effect of a foreign incapacity mandate requires a separate analysis of applicable law. In Cour de cassation, First Civil Chamber, 27 January 2021, no. 19-15.059, the court considered a foreign incapacity mandate and the distinction between the law governing validity and the law governing exercise. The case concerned a Swiss instrument, not a UK LPA, so it is an important cross-border reference rather than a guarantee that every British document will be accepted. The point for a British resident is practical: identify the donor’s habitual residence, the document’s governing law, the place where it will be used and the control mechanism before asking France to implement it.

Activation evidence can be decisive. Article 481 of the French Civil Code provides that the French mandate takes effect when the donor can no longer look after their interests and states: “Le mandataire produit au greffe du tribunal judiciaire le mandat et un certificat médical.” The greffe is the registry of the court, and the tribunal judiciaire is the ordinary civil court. A UK LPA may have its own registration and activation evidence, but a French recipient needs to understand that evidence in its own legal context. A doctor’s letter alone will not necessarily prove that the UK instrument is registered and usable.

Ordinary authority also ends in defined circumstances. Article 2003 of the French Civil Code states, “Le mandat finit : Par la révocation du mandataire, Par la renonciation de celui-ci au mandat, Par la mort […] soit du mandant, soit du mandataire.” A power of attorney cannot be used as a substitute for estate authority after the donor has died. If the issue is a French bank account or property forming part of an estate, the attorney may need to act as executor, heir or appointed representative under the succession process. A separate article on a UK executor and a French inheritance addresses that different situation.

The donor can generally revoke a French mandate at will under Article 2004 of the French Civil Code. The operational lesson is to notify every known recipient, retrieve copies where possible, and obtain written confirmation that the old authority has been removed from the account or file. If the bank continues to rely on an old document, or if an attorney acts after revocation, the dates and delivery evidence will become central.

Finally, an LPA or ordinary authority does not eliminate the recipient’s duties relating to fraud, money laundering, sanctions, capacity or identity. It only identifies who may act for the donor. A French bank may ask both for the power of attorney and for proof of source of funds, address, tax residence, identity and the economic reason for the transaction. A French notary may ask for civil-status records, a certified translation and evidence that the donor understood and accepted the act. These checks are not necessarily a Brexit refusal; they are often a request to separate authority from compliance.

II. What should you do if a French bank or notary refuses the document?

A. How should you prove the scope, validity and continuing effect of the mandate?

First, obtain the refusal in writing. A telephone statement that “the document is not accepted” is not enough to decide whether the problem is the apostille, the translation, the scope of the clause, the donor’s capacity, the attorney’s identity, the age of the document, a missing page or a compliance concern. Ask the recipient to identify the exact missing item and to say whether a corrected document would be considered. Use a short, neutral request in French or bilingual form so that the response can later be shown to a lawyer, notary or court.

Then divide the refusal into four questions:

• Is the document authentic and complete? Check the original, signatures, certification, apostille, page numbering, attachments and translation.
• Does the person have the power to perform this exact act? Compare the request with the wording of the mandate, including any limits, conditions, dates and account or asset references.
• Is the authority still in force? Check revocation, death, renunciation, expiry, incapacity conditions, LPA registration and any later instrument.
• Is the recipient refusing for a separate compliance reason? Identity, tax residence, sanctions screening, source of funds and anti-money-laundering evidence may still be required even after the mandate is accepted in principle.

This classification prevents a common mistake: sending a second apostille when the real problem is that the document only grants authority to receive statements, not to close an account or transfer money. The reverse mistake is also common: rewriting the mandate when the bank only needs a certified translation and identity evidence.

The scope should be tested against the act in concrete language. “Manage my finances” may cover ordinary administration, but a request to open or close an account, make a large transfer, release assets, sign a settlement, instruct a notary or execute a disposal may require a more specific clause. Under Article 1988 of the Civil Code, the French distinction between administration and an express power for a serious property act gives the recipient a reason to insist on precision. The wording does not need to be artificially long; it needs to make the intended act identifiable.

The risk of an overbroad or ambiguous document is illustrated by Cour de cassation, First Civil Chamber, 14 April 2016, no. 15-18.157. In that Australian case, the court examined a power of attorney signed before a “Notary Public” and the consequences of the notary’s limited intervention. It expressly stated that “l’apostille dont l’acte est revêtu ne saurait authentifier que la signature du Notary Public” — the apostille could authenticate only the Notary Public’s signature, not the other circumstances surrounding the act. The case is not a rule that every UK power of attorney fails. It is a warning that the apostille cannot prove that the donor received an explanation, understood the consequences or granted the power claimed by the recipient.

For that reason, a high-value or high-risk file should include an evidence note explaining:

• when and where the donor signed;
• which professional witnessed, certified or received the signature;
• what identity checks were completed;
• what language the donor understood and whether the document was explained;
• what act the attorney is authorised to perform;
• whether the attorney accepted the authority and any duties to report or account; and
• why the authority remains live on the date of the French transaction.

Article 1998 provides the baseline risk allocation. It states: “Le mandant est tenu d’exécuter les engagements contractés par le mandataire, conformément au pouvoir qui lui a été donné. Il n’est tenu de ce qui a pu être fait au-delà, qu’autant qu’il l’a ratifié expressément ou tacitement.” The principal is bound by commitments made within the authority, but not by acts beyond it unless they are expressly or tacitly ratified. A bank or notary therefore has a legitimate interest in seeing the exact power before allowing the act, particularly where the transaction is irreversible.

Cour de cassation, First Civil Chamber, 28 September 2022, no. 20-21.631 confirms why the recipient’s verification cannot be treated as a formality. The case concerned a Portuguese power of attorney used in a major property transaction and attached without translation. The court required the circumstances, the seriousness of the act and the parties’ quality to be considered when deciding whether a third party could rely on the apparent authority without checking its extent. The lesson for a British donor is to provide the translation and express authority before the appointment or transaction, not after a dispute starts.

The same principle appears in Cour de cassation, First Civil Chamber, 24 April 2013, no. 11-27.082. The court held that, where the existence or validity of a power is challenged, a court must examine the existence and regularity of the mandate authorising the representative; it cannot simply rely on the fact that an authentic deed mentions that a power of attorney exists. A French notary’s reference to a UK document is therefore not a substitute for the UK document itself, its translation and evidence of its scope.

Do not leave revocation and death evidence until the last day. If a donor has died, Article 2003 changes the analysis and the attorney’s ordinary authority cannot be used to bypass the estate process. If a donor is alive but has revoked or replaced the document, deliver the revocation to the bank, notary and any other recipient through a method that proves receipt. If a dispute concerns an LPA, obtain the relevant UK registration and revocation evidence rather than relying on an informal family statement.

If the donor’s capacity is questioned, separate the two possible arguments. The first is whether the donor had capacity when the power of attorney was signed. The second is whether a continuing instrument has been activated in accordance with its own rules. A medical report can be relevant, but it does not answer the formal question by itself. For a French future-protection mandate, Article 481 requires the mandate and a medical certificate to be presented to the court registry before the registrar dates its effect. A UK LPA has a different statutory pathway; a French institution must be shown the correct UK evidence, not a French form that happens to look similar.

When the act relates to a succession, identify the person’s legal capacity in the estate. A power of attorney granted by the deceased is not the same as authority held by a named executor, administrator or heir. If a British executor is asking a French bank to release funds, the bank may need the grant of probate, a death certificate, the will, an apostille and a sworn French translation, in addition to a power of attorney authorising a French representative. This is why a broad “UK power of attorney in France” request can produce a refusal even though the underlying document is genuine: the wrong legal role is being presented.

Where a new document is needed, ask the recipient for wording requirements before signing. The instructions should specify whether it needs an original, a certified copy, a French translation, an apostille, a maximum age, a statement of no revocation, a separate specimen signature or a corporate compliance form. The request should also state whether the recipient wants authority to receive information only or to give binding instructions. That distinction can save a British resident from granting a much wider mandate than intended.

B. Which complaint, mediation and court steps can a British resident take?

The remedy depends on who refused and why. A UK legalisation problem must first be corrected through the UK certification and apostille route. A French translation problem is usually cured by commissioning a complete authorised translation, including schedules and apostille pages. A bank-compliance refusal requires an internal complaint and supporting evidence. A notarial refusal relating to the validity or scope of an act may require a French civil-law analysis and, where necessary, court proceedings. Treating all four as a generic “Brexit refusal” wastes time.

For a bank, send a formal complaint to the complaints department, not only to the branch employee who first refused the document. Attach the power of attorney, translation, apostille, identity documents, the written refusal and a numbered response to each objection. Ask for a reasoned answer and a list of any remaining documents. Keep proof of delivery and a timeline. Do not send passwords, card PINs or unnecessary account data in an ordinary email; redact unrelated information while leaving the authority and transaction visible.

If the dispute concerns banking services provided to a consumer, Article L. 316-1 of the French Monetary and Financial Code states: “Tout consommateur a droit de recourir gratuitement à un médiateur.” In English, a consumer has a right to use a mediator free of charge under the applicable conditions for a dispute with a credit institution or other listed financial provider. A médiateur is an independent dispute-resolution intermediary, not a judge. Mediation may help obtain a review of the file, but it does not automatically validate the power of attorney or create an emergency order.

Check the bank’s mediation notice and eligibility rules. Normally, the consumer must have made a prior written complaint and wait for the stated period or receive a final refusal. A dispute about an account closure is also different from a refusal to act on a representative’s instruction. Article L. 312-1-1 of the Monetary and Financial Code contains rules about the written deposit-account agreement and, for an indefinite account, a notice period of at least two months for termination by the bank. That provision should not be presented as a universal right to force a bank to accept an inadequate or unverified power of attorney.

For a notary, request the refusal or the list of objections in writing and ask whether the difficulty is with the document’s authenticity, its translation, the attorney’s powers, the donor’s capacity, the civil-status evidence or the act itself. A French notaire is not merely a private conveyancer: for many acts, the notary has a public role and must ensure that the formal conditions and consent are reliable. If the document is intended for a property transaction, the purchase or sale process has its own professional route and is outside this article’s general relocation focus; the key point here is that a broad authority should not be assumed to cover a specific disposal act.

A refusal can be legally justified even when the donor has followed every UK formality. For example, a UK solicitor may certify a signature, the FCDO may issue an apostille, and the French recipient may still be unable to rely on the document because the clause does not expressly authorise the act. Conversely, a French recipient may be applying an excessive requirement when the document, apostille, translation and express authority satisfy the relevant rule. The difference can only be assessed by comparing the written refusal with the governing law and the exact act required.

If the refusal threatens a deadline, an urgent payment, access to essential funds or a transaction that cannot be postponed, obtain advice before attempting self-help. A French lawyer may be able to send a formal legal response, negotiate a corrected form, refer the matter to the notary’s professional body or prepare an application to the competent court. Depending on the dispute, the court may need to decide whether the mandate exists, whether the representative had the required power, whether the refusal caused loss, or whether a different representative or protective measure must be appointed.

Urgency does not remove the need for evidence. Prepare a single indexed PDF and keep a paper file containing:

• the refused UK power of attorney and every annex;
• the apostille and any UK certification;
• the full French translation and translator details;
• identity, address and civil-status documents for donor and attorney;
• the LPA registration or activation evidence, if applicable;
• proof that the donor is alive and that no revocation has been served, where relevant;
• the bank or notary’s written refusal and the date it was received;
• the transaction deadline and the financial or personal consequence of delay; and
• all delivery receipts, emails, call notes and previous versions of the mandate.

Courts look at the document and the circumstances, not just the title placed at the top. If the donor’s instructions are disputed, evidence of explanation and understanding may matter. If the attorney’s act is disputed, the precise clause and the surrounding communications may matter. If the recipient claims compliance risk, the source-of-funds and identity material may matter more than the apostille. A good response addresses the actual objection rather than repeating that the document is “official”.

There may also be a cross-border choice-of-law issue. The 2021 Cour de cassation decision on a foreign incapacity mandate shows that the law of the donor’s habitual residence at the time of the instrument and the law of the place of exercise can play different roles. A British resident who signed a document in England, later moved to France, and then became unable to manage affairs should not assume that one country’s form automatically answers every question. The document’s wording, any choice-of-law clause, the donor’s residence at signing and at use, and the French procedure proposed by the recipient should be reviewed together.

The answer may be negotiation rather than litigation. A bank may accept a short supplemental deed signed before a UK notary public, apostilled and translated, if it expressly confirms the account number, the authorised operation and the attorney’s limits. A notary may accept a corrected translation or a fresh certificate from the UK professional who received the signature. A family may decide to sign a French future-protection mandate for future incapacity while using the existing UK authority for a present administrative task. Each solution has a different cost and legal effect; none should be described as a universal Brexit form.

Do not conceal the refusal from another recipient. A second bank or notary may apply a different internal checklist, but recycling the same incomplete document can create inconsistent statements and additional suspicion. State what happened, provide the refusal, and ask the new recipient to confirm its requirements in advance. Consistency is especially important where the donor is elderly, vulnerable, subject to an incapacity concern, or involved in a large transfer or succession.

Finally, check the date of every document. Apostilles do not usually expire merely because time has passed, but a recipient may require a recent certified copy, an updated civil-status record, a current proof of address, a recent capacity certificate or confirmation that no revocation has occurred. A UK LPA may remain registered while the bank’s internal policy requires current identity evidence. A dated refusal and a dated document pack make it possible to show what the recipient knew at the time.

Conclusion

A UK power of attorney can be used in France after Brexit, but acceptance depends on more than the presence of a signature or apostille. The document must be the right type for the act, grant sufficiently precise powers, remain in force, and be supported by the certification, apostille, authorised French translation and identity evidence required by the recipient. An English or Welsh LPA is not the same instrument as a French future-protection mandate, and a succession authority after death is not the same as an ordinary lifetime power.

If a French bank or notary refuses the document, obtain the refusal in writing, separate formal authentication from scope and compliance, cure the specific defect, and preserve a complete evidence trail. The French Civil Code and the case law show why a recipient must be able to verify the authority and why an apostille cannot prove the donor’s understanding or expand the attorney’s powers. Where the refusal causes real urgency or loss, a focused cross-border review is safer than repeatedly submitting the same document.

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