French tax audit notice: what to do upon receipt

Receiving a registered letter from the French tax authorities announcing a tax audit triggers immediate concern. The financial stakes may be substantial and every step counts in the subsequent proceedings. This article explains what a French tax audit notice is, which procedures it concerns, the applicable timelines and the first steps to take.

What is a French tax audit notice?

A tax audit notice (avis de vérification) is the document by which the French tax authorities inform a taxpayer, whether an individual or a business, that an in-depth audit procedure has been initiated against them. It is governed by article L. 47 of the French Tax Procedures Code (LPF), which sets out mandatory information.

To be valid, the notice must indicate:

• the identity of the auditor and the issuing service;
• the tax years under audit;
• the taxes, duties and charges concerned;
• the type of procedure (on-site tax audit of accounts or personal tax situation review);
• the taxpayer's right to be assisted by counsel of their choice (lawyer, chartered accountant).

Omission of mandatory information may constitute a procedural defect capable of invalidating the entire proceedings.

Three types of French tax audit to distinguish

Not every form of French tax audit involves a tax audit notice. Three procedures must be distinguished:

1. Desk audit (contrôle sur pièces)

This is the most common form of audit. The authorities review tax returns from their office, using information already available. No tax audit notice is issued, but a proposed tax adjustment notice may be sent directly. This procedure does not require any on-site visit.

2. On-site tax audit of accounts (vérification de comptabilité)

This procedure applies to businesses and professionals. Governed by articles L. 13 and following of the LPF, it consists of an on-site review of accounts and supporting documents. It must always be preceded by a tax audit notice. For SMEs, article L. 52 of the LPF caps the on-site audit duration at three months.

3. Personal tax situation review (ESFP)

The ESFP (examen contradictoire de la situation fiscale personnelle) applies to individuals and focuses on the consistency between declared income on the one hand, and personal assets, cash flow and lifestyle on the other. Governed by article L. 12 of the LPF, its maximum duration is one year from receipt of the tax audit notice, except in specific extension cases provided by law.

First checks to perform on the notice

Upon receiving the notice, several items should be verified:

• Signature and issuing service: an unsigned notice or one issued by an incompetent service may be challenged.
• Tax years covered: only years within the statutory assessment period may be audited (generally three years for income tax and corporation tax, article L. 169 LPF).
• Taxes concerned: the audit must remain limited to the taxes listed in the notice.
• Mention of the right to be assisted by counsel: its omission constitutes a substantial procedural irregularity.
• Date of first intervention: a reasonable period must be left for the taxpayer to organise and consult counsel. The authorities' practice retains a minimum two business days.

A precise review of these items allows any procedural irregularities to be identified from the outset.

Documents to prepare

The documents required depend on the type of procedure. For an on-site tax audit of accounts:

• mandatory accounting records (general ledger, journal, inventory book);
• supporting documents for recorded transactions (invoices, contracts, professional bank statements);
• tax and social security filings for the audited years;
• the file of accounting entries (FEC), mandatory since 2014 and typically requested at the start of the audit.

For a personal tax situation review (ESFP):

• bank statements for all accounts (personal, joint, foreign accounts);
• supporting documents for non-salary income (rent, dividends, capital gains);
• wealth-related documents (notarial deeds, real estate acquisitions, gifts);
• lifestyle evidence if there is an apparent gap with declared income.

Rights of the taxpayer during the audit

The taxpayer enjoys statutory rights, further detailed in the Charter of Rights and Obligations of the Audited Taxpayer, which is handed over with the audit notice. Among these rights:

• Right to be assisted by counsel at every stage of the procedure;
• Right to an oral and adversarial discussion with the auditor, who must address proposed adjustments before closing the audit;
• Right to information on the sources of data used by the authorities;
• Right to challenge proposed tax adjustments within statutory deadlines.

These rights are only effective when actually exercised. Sending documents to the auditor without first assessing the consequences, or answering difficult questions on the spot, is usually counterproductive.

Common mistakes to avoid

• Ignoring the letter: lack of response does not suspend the procedure. The authorities may proceed with an ex officio assessment if the taxpayer does not appear.
• Sending documents without preparation: each item sent to the auditor may be used to support an adjustment. Centralising requests and organising responses is strongly recommended.
• Spontaneously admitting an omission: good faith sometimes protects the taxpayer, but a poorly worded admission may worsen the situation.
• Not seeking assistance: the complexity of French tax rules and the technicality of the procedures justify engaging a lawyer upon receipt of the notice.

Value of early lawyer involvement

A French tax lawyer may step in from the moment the audit notice is received to:

• assess the formal validity of the notice and identify any procedural defects;
• frame exchanges with the auditor and prepare the documents to be delivered;
• build the legal and factual arguments to oppose any proposed adjustment;
• safeguard the taxpayer's rights at every stage, up to litigation if required.

Early intervention often helps avoid preventable adjustments or limit their scope.

What happens after the audit

Three outcomes are possible at the end of the audit:

• A notice of no adjustment: the authorities retain no reassessment.
• A proposed tax adjustment notice: the authorities notify the proposed reassessments. The taxpayer has 30 days to respond, extendable by another 30 days upon written request (see our article dedicated to the proposed tax adjustment notice).
• Persistent disagreement: several remedies are available (hierarchical appeal, departmental commission, then litigation before the administrative court).

Each step is bound by strict deadlines whose breach may forfeit the right to challenge the assessment. VV Avocat, based at 9 allées François Verdier in Toulouse, assists both French-speaking and English-speaking taxpayers facing audits in France.