Sending money to a relative in Morocco, paying for a wedding in Thailand from a French account, or supporting a student child in Canada every month are common situations, but they trigger tax obligations that many taxpayers discover too late, during an audit or a follow-up from the administration.
Money transfers abroad and reporting obligations: what the bank reports before you do
Since the transposition of the 6th EU anti-money laundering directive, payment institutions (traditional banks, as well as Wise, Revolut, and other neobanks) have strengthened their detection scenarios for international transfers. Tracfin receives automatic reports as soon as an atypical flow is detected, even for an individual.
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In practice, recurring or fragmented transfers to the same beneficiary abroad are enough to trigger a request for supporting documents. It is often thought that only large amounts attract attention, but it is the regularity of the flow that raises alarms, not just the individual sum.
For those looking to understand how to declare money sent abroad for tax purposes, the starting point is to know that the transfer itself is not taxed. It is the nature of the transferred money (income, gift, alimony) and the existence of an account abroad that create obligations.
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Foreign bank account: the declaration that everyone forgets
Funding a relative’s account outside France does not pose a tax problem in itself. However, if you are the account holder, co-holder, or have power of attorney on an account opened abroad, you must declare it every year using form 3916. This obligation applies to all accounts, including those opened with foreign neobanks or on payment platforms.
France fully utilizes automatic information exchange under the OECD/CRS standard. In practice, the bank in the recipient country reports the existence of the account to the French tax administration. In other words, failing to declare an account that the administration already knows about through CRS significantly worsens the situation in the event of an audit.
What CRS changes for taxpayers
We are no longer limited to a simple administrative obligation. There is now a systematic confrontation between what the taxpayer declares and the information received from partner jurisdictions. An undeclared account held in a CRS-signatory country (the vast majority of countries) will be identified without even launching an individual audit.
The fine for failing to declare a foreign account is fixed, per account and per undeclared year. Reports vary on the exact amount applied depending on the situations, but the cumulative amount over several years can represent a heavy sum.
Alimony paid abroad: tax deduction and supporting documents
Paying alimony to a parent residing outside France is a common case. The Civil Code (articles 205 to 207) provides for a maintenance obligation towards ascendants, descendants, in-laws, sons-in-law, and daughters-in-law. Article 156 II. 2° of the General Tax Code allows for the deduction of this assistance from taxable income.
- The alimony must correspond to the actual needs of the beneficiary and the resources of the payer. There is no legal cap on the amount, but the administration assesses proportionality.
- Supporting documents to keep include transfer statements, proof of the beneficiary’s financial situation (foreign tax notices, income certificates), and any document showing the family relationship.
- Assistance paid to siblings, uncles, or cousins is not deductible, as there is no legal maintenance obligation towards these individuals.
- This alimony may constitute taxable income for the beneficiary according to the tax legislation of their country of residence.
The amount paid is declared in the section dedicated to alimony on the income tax return. A common mistake is to deduct without keeping transfer receipts or proof of the beneficiary’s need.
Cash transfers and customs declaration: the threshold not to ignore
When physically transporting cash out of France or entering the country, a customs declaration is mandatory above a certain threshold. This obligation also applies to checks, money orders, and other financial instruments transported physically.
Failing to declare exposes one to partial or total seizure of funds and fines. Customs collaborates with Tracfin, and an undeclared transport can trigger a broader tax situation review.
Bank transfers and cash: two distinct regimes
A bank transfer abroad does not require a customs declaration, as it is tracked by financial institutions. The customs declaration only concerns the physical transport of valuables. Confusing the two regimes is a common mistake.
Foreign source income and transfers to France
Money does not flow in just one direction. Receiving a transfer from abroad can also create a reporting obligation. If the amount received corresponds to income (rent, salary, dividend from a foreign investment), it must be included on the French income tax return, even if tax has already been withheld in the country of origin.
Bilateral tax treaties between France and the relevant country determine whether a tax credit applies to avoid double taxation. Each treaty has its own rules depending on the type of income. A family gift received from abroad, on the other hand, falls under gift tax and not income tax.
The common point among all these situations remains traceability. The tax administration has cross-information channels (CRS, Tracfin, bank reports) that make concealment not only risky but also ineffective. Properly declaring each flow, keeping receipts for each transfer, and checking the box on form 3916 every year: this is the only way to secure perfectly legal money transfers.