Foreign bank accounts: how to report them, what are the risks, what defense?
Tax lawyer in Paris – 20 years of expertise in account regularization
Summary
- Reporting obligation: every foreign bank account, life insurance policy or fintech account must be declared using form no. 3916-3916-bis, to be filed with the income tax return (end of May / early June depending on the département).
- Fixed penalty: €1,500 per account (increased to €10,000 if the account is held in a State or territory that has not concluded an administrative assistance agreement with France) in the event of an omission or error.
- Tax surcharge: up to 80% on the additional tax under article 1729-0 A of the French General Tax Code (CGI) where concealment is established.
- Tax lawyer: compliance audit, voluntary regularization, adversarial defense and negotiation of penalties.
What are my tax obligations if I hold a bank account abroad?
- Tax resident? Any person domiciled in France – whether an impatriate, an expatriate retiree who keeps a pied-à-terre, or a tax-transparent SCI – must report every account “opened, used or closed” outside France. The obligation arises from article 1649 A of the CGI and applies even if the balance is zero or no income was received during the year.
- Accounts concerned: the rule covers traditional banks, neobanks (Revolut, Wise), Luxembourg life insurance policies, crypto platforms (Binance, Kraken) as well as PayPal or Stripe payment accounts with flows exceeding €10,000. Linked digital vaults must also be reported when they store tokenized assets.
- Formalities: a separate form 3916-3916-bis must accompany the online return 2042. On it you enter the country, IBAN or public address, opening and closing dates and the maximum annual balance converted at the Banque de France rate.
- Extended limitation period: in the event of non-reporting, the tax authorities have 10 years not only to claim the per-account penalty, but also to reconstruct untaxed interest, dividends or capital gains. This extension is intended to neutralize international financial concealment strategies.
- Account income: interest is entered on line 2TS / 2TR, dividends on 2DC, and crypto capital gains on 3AN. Incorrect reporting exposes you to cumulative taxes and penalties, even if the account itself was properly reported.
What are the risks and penalties in the event of an omission or error?
Type de manquement | Amende forfaitaire | Majoration d'impôt | Peine pénale possible | Base légale |
Omission simple (État coopératif) | 1500€/compte | 40% (défaut déclaratif) | CGI 1736 IV | |
Omission (État non coopératif) | 10 000€/compte | 40% | CGI 1736 IV-bis | |
Dissimulation volontaire | Amende ci-dessus | 80% (1729-0 A) | CGI 1736-0 A | |
Blanchiment aggravé | Amende ci-dessus | 80% | 3M€ + 7 ans de prison | C.pén. 324-1 |
How do you correctly report a bank account held abroad?
- List all accounts: draw up an exhaustive list including banks, fintechs, life insurance policies and crypto exchanges, without overlooking inactive accounts. Also check powers of attorney or joint signatures, as they create a reporting obligation identical to that of the account holder.
- Download the reference statements: obtain the balances at January 1 of year N as well as the maximum balance for the year. These documents will make it possible to justify any discrepancy when CRS/DAC2 data is cross-checked and to demonstrate the consistency of your converted amounts.
- Complete each 3916-3916-bis: enter the IBAN, country, opening date, highest balance, currency and, for crypto, the main public address and the exchange used. Make sure the country codes are accurate; a simple typographical error can invalidate the declaration.
- Report the corresponding income: enter interest, dividends and capital gains in the appropriate boxes of form 2042. Indicate the single flat-rate levy (prélèvement forfaitaire unique) or the progressive scale option to avoid being taxed twice and, if necessary, attach form 2074.
- Keep supporting documents for 10 years: keep account opening agreements, transaction histories, conversion tables and bank certificates. In the event of an audit, the burden of proof lies with you and the absence of documents leads to an automatic assessment (taxation d’office).
- Check consistency with CRS data: compare your balances with those automatically transmitted to the French tax administration (Bercy) in order to identify any suspicious discrepancy before filing. Correct if necessary, as the scoring algorithm first detects these automatic inconsistencies.
- Meet the deadline: file online before the end of May – early June (depending on the département).
How do you regularize an undeclared foreign account before an audit?
- Voluntary amended return: file corrected forms 3916-3916-bis and 2042 for the ten years not yet time-barred, together with a letter explaining the origin of the funds and your spontaneous approach. This initiative demonstrates your good faith.
- Detailed financial simulation: calculate the additional tax, late-payment interest (0.20% per month) and the per-account penalty. This budgetary anticipation facilitates negotiation with the tax collection department and avoids an aggravating payment default.
- Negotiation of penalties: invoke article L247 of the French Tax Procedure Code (LPF) to obtain an additional discretionary remission (remise gracieuse), subject to payment in cash or a serious settlement plan.
- Secured payment plan: request up to 36 months, backed by a guarantee (pledge, bank guarantee) in order to convince the public accountant. A lawyer can structure the security to minimize costs and protect your assets.
- Comprehensive support from the lawyer: they collect the documents, draft a detailed brief, liaise with the DNVSF (national department for tax investigations of individuals) and follow up on the acknowledgment of debt.
FAQ
Why do the tax authorities require me to report my foreign accounts?
Thanks to the Common Reporting Standard, more than 120 countries send France each year the balances, interest and dividends received by French taxpayers. By requiring systematic reporting, the tax authorities check the consistency between your worldwide income and your national taxation, detect discrepancies that may conceal fraud and ensure equal treatment among residents.
The obligation also helps combat money laundering and terrorist financing, as undeclared capital is frequently used in opaque or criminal arrangements.
How can I prove the lawful origin of the funds in my foreign account?
Put together a chronological file: payslips, invoices, share transfer agreements, capital gains statements, notarial deeds of gift or inheritance and, where applicable, certificates of foreign tax residence.
For each credit, attach the corresponding supporting document, indicate the conversion at the official rate of the day and mention the legal basis for the exemption or the double taxation already paid. This traceability demonstrates that the sums have been rightly taxed or exempted, thus limiting their requalification as income taxable in France.
What should I do if I receive a €10,000 penalty for an undeclared account?
First check whether the bank is actually located in a State or territory that has not concluded an administrative assistance agreement with France; if not, you can request a reduction to €1,500. Then, within 30 days, contact the local tax office with a reasoned response: attach form 3916-3916-bis, explain the good-faith error and offer immediate payment of any tax due.
At the same time, a lawyer can argue that the penalty is disproportionate and request a partial discretionary remission, especially for a first failure or where little tax is at stake.
Glossary & checklist
“Used” account: An account on which at least one transaction was recorded during the year.
CRS: Automatic exchange of banking information between 120 countries.
3916-3916-bis: Form to be attached to return 2042 for each foreign account.
Checklist: “5 steps to report”
□ List banks, fintechs, crypto exchanges
□ Download balances at January 1
□ Complete one 3916-3916-bis per account
□ Report income on lines 2TS / 3AN
□ Keep documents for 10 years
Further reading
- Full text of article 1649 A of the CGI and BOFiP commentary BOI-CF-CPF-30-20.
- CRS 2025 analysis: extension to crypto platforms and raising of reporting thresholds.
