Through several decisions in recent years, the Conseil d'Etat has clarified the scope of the obligation to report foreign accounts under article 1649 A of the French Tax Code. Three key lessons emerge: (1) the notion of an account “used” is interpreted broadly, as a single incoming or outgoing transaction is enough to establish use; (2) the obligation covers both the identity of the holder and the capacity of the user (holder, proxy, authorised signatory); (3) the penalties under article 1736 IV apply per account and per year not reported, with no overall cap. This page summarises the main contributions of the case law and their practical consequences.
Since the regime was extended to accounts that are used (and no longer only to accounts that are held), litigation over the scope of the obligation has multiplied. The Conseil d'Etat has consistently held that the notion of an account used must be interpreted broadly: a single transaction (funds coming in or going out) is enough to establish use, regardless of the amount.
As a consequence, a taxpayer who holds a power of attorney over the foreign account of a relative or an employer may be required to report it, but only if that power of attorney confers genuine effective management authority (ownership rights, opening/closing, operation of the account). A mere power of attorney limited to viewing operations is not sufficient to trigger the obligation. Since 1 January 2019 (2019 Finance Act, art. 7), the obligation also applies to all accounts opened, held, used or closed abroad, including dormant accounts. The administrative guidelines confirm this reading (BOI-CF-CPF-30-20).
This extensive interpretation exposes a wide audience: heirs pending distribution of an estate, executives of foreign subsidiaries, spouses of internationally active business owners, family caregivers holding a power of attorney over the account of an expatriate relative. Vigilance and preventive voluntary disclosure are essential.
The notion of use has been clarified by the Conseil d'Etat: a single transaction, incoming or outgoing, during the year is enough to establish use, regardless of the amount. Since 1 January 2019 (2019 Finance Act, art. 7), the reporting obligation further covers all accounts opened, held, used or closed abroad, including accounts that remained dormant during the year, as the administrative guidelines have explicitly confirmed (BOI-CF-CPF-30-20).
A power of attorney or an authorised signature over a foreign account does not automatically entail the reporting obligation: it must also confer genuine effective management authority over the account (ownership rights, opening/closing, operation). A power of attorney limited to viewing operations or to strictly circumscribed transactions does not, on its own, trigger the obligation. The characterisation must be assessed case by case, in light of the actual extent of the powers conferred.
An executive or employee who holds signing authority over a business account of a foreign entity (subsidiary, branch) is in principle subject to the reporting obligation in a personal capacity, including for purely business accounts. A merely « technical » signature attached to a corporate office can therefore trigger the obligation.
The fines under article 1736 IV apply per account and per year not reported, with no overall cap. On a multi-account portfolio open for several years (for example, 5 accounts over 6 years), the fines can reach EUR 45,000 under the standard penalty or EUR 300,000 under the increased penalty. The financial cost of an omission can be very heavy.
Article L.169 paragraph 5 of the French Book of Tax Procedures extends the reassessment period available to the tax authorities to 10 years where the obligation has been breached. This period applies to income derived from the unreported accounts (interest, capital gains, dividends), with late-payment interest and potential surcharges (40% for deliberate breach, 80% for fraudulent conduct). The overall bill can be considerable.
The firm regularly conducts wealth audits to identify foreign accounts that have been overlooked or mischaracterised (powers of attorney, joint accounts, third-party accounts used, business accounts). The objective is to regularise the situation through voluntary disclosure before any audit, and thus benefit from reduced penalties.
In open disputes (information request, reassessment proposal), we build the defence on the precise characterisation of the use of the account, the applicable case law and the mitigation of penalties.
According to the case law of the Conseil d'Etat, an account is used as soon as it records at least one transaction, incoming or outgoing, during the year, whatever the amount. This broad reading means that an account left dormant is in principle outside the obligation for the year concerned, but that a single transfer (even symbolic) is enough to trigger the reporting obligation for that year.
Not systematically. A power of attorney or an authorised signature over a foreign account entails the reporting obligation only where it confers genuine effective management authority (ownership rights, opening/closing, operation of the account). A purely formal power of attorney, or one limited to viewing operations, is not sufficient. A typical case: the spouse or adult child holding a general power of attorney over the account of an expatriate parent is in principle required to report it; conversely, a proxy whose powers are strictly circumscribed may, depending on the circumstances, fall outside the obligation. The analysis of the power-of-attorney instrument is decisive. Since 1 January 2019 (2019 Finance Act, art. 7), the obligation also covers all accounts opened, held, used or closed abroad, including dormant accounts (BOI-CF-CPF-30-20).
In principle, yes, in a personal capacity, even where the account is purely a business account belonging to a foreign entity. The authorised signature of an executive or employee over the account of a foreign subsidiary in principle falls within the obligation. Limited exceptions may exist (accounts opened in the name of the French legal entity in the course of its business, where careful attention must be paid to the precise characterisation).
Yes. The fines under article 1736 IV apply per account and per year not reported. For a single account left unreported for 6 years, the fine is EUR 1,500 x 6 = EUR 9,000 (or EUR 60,000 where the country provides no assistance). For 5 accounts over 6 years, the total reaches EUR 45,000 (standard penalty) or EUR 300,000 (increased penalty). There is no overall cap.
Voluntary disclosure is almost always the best option. Regularising the situation with the local tax office (SIP) with a complete file (accounts, balances, income, amended returns) generally makes it possible to obtain a reduction of the penalties. The firm structures voluntary disclosures to optimise the balance between the required transparency and the limitation of penalties.
The reporting obligation has been extended to life-insurance policies taken out outside France (form 3916 bis since 2014). The same penalties apply (EUR 1,500 / 10,000 per policy per year), together with the same extended reassessment period (10 years). The report covers the identity of the policy, the institution and its characteristics (subscription date, term, value). Particular attention should be paid to Luxembourg or Irish policies held by French tax residents.
General framework of the obligation and the reporting procedure.
Voir la page Foreign accountsVoluntary disclosure procedure and negotiation of penalties.
Voir la page Non-residents practiceGeneral framework: minimum rate, social levies, tax treaties.
Voir la page WealthDetermination of tax residence and its reporting consequences.
Voir la pageAn initial confidential conversation to audit your positions and organise a preventive voluntary disclosure, or to defend your interests in the event of an audit.
© BENSAID Avocats. The information on this site does not constitute legal advice and cannot substitute for personalised tax analysis.