Tax Audit: Rights and Obligations of the Business

A tax audit is not a negotiation, but it is not a one-way procedure either. The tax administration has broad powers; the company has guarantees whose violation results in the nullity of the procedure. Knowing these guarantees before the audit, not during it, changes the outcome more reliably than any argument on the merits.

Three forms of audit, three regimes

The desk audit is conducted from the tax administration's offices, based on the filed returns. It gives rise to requests for information, clarification, or supporting documents. These requests are not trivial: some open a response deadline whose expiration allows for an ex officio assessment.

The accounting audit takes place on the company's premises and covers the entire accounting records. This is the heaviest form, and the one that offers taxpayers the most guarantees.

The remote accounting examination is an intermediate form, conducted remotely based on the accounting entries file that the company transmits. It avoids an on-site presence while covering the same elements.

Guarantees before the audit

An accounting audit cannot begin without the prior sending of a notice of audit. This notice states the years subject to the audit, the taxes concerned, and informs the company of its right to be assisted by an advisor of its choice.

Two practical consequences:

• The company must have a reasonable period between receipt of the notice and the first intervention, in order to arrange for this assistance. An intervention that comes too soon after is an irregularity.
• The mention of the right to assistance is substantial. Its omission results in the nullity of the procedure.

The notice is accompanied by the charter of rights and obligations of the audited taxpayer, some provisions of which are enforceable against the tax administration.

The proceedings and the oral exchange

An on-site audit requires an oral and adversarial exchange with the auditor. This is not a courtesy formality: its absence is grounds for nullity. In practical terms, the company must have had the opportunity to discuss the points examined before the conclusions are finalized.

The duration of an on-site audit is limited to three months for companies whose revenue does not exceed certain thresholds. This cap protects small businesses from an audit that would drag on indefinitely; it is set aside in a few situations, notably in the event of serious accounting irregularities.

The company, for its part, must present the requested accounting documents and hand over its accounting entries file in electronic form. Failure to provide this file, or its non-compliance with the required format, is sanctioned by a fine and weakens the company's overall position — this is the point where the quality of upstream documentary processes pays off or costs dearly, as illustrated by the requirement for a reliable audit trail.

The proposed adjustment and response deadlines

At the end of the audit, the tax administration notifies either a notice of no adjustment, or a proposed adjustment. This document must be justified: it states the proposed adjustments, their legal basis, and their amount, with sufficient precision to allow for a meaningful response. Insufficient justification is challengeable in itself.

The company has a period of thirty days to respond, extendable by an additional thirty days upon simple request. This extension is granted as a matter of right: requesting it is almost always worthwhile, if only to build a well-documented response.

Silence maintained during this period constitutes tacit acceptance of the adjustments. This is the most costly and most common mistake, as it is irreversible on the very principle of the adjustment.

Remedies after the response

If disagreement persists, several levels open up successively, and it is possible to pursue all of them:

• The hierarchical appeal to the auditor's supervisor.
• Referral to the departmental ombudsman, a higher level.
• Referral to the commission on direct taxes and turnover taxes, which has jurisdiction over questions of fact — its opinion is not binding but carries weight.
• The formal claim, followed by referral to the competent court.

These remedies are not mutually exclusive and do not suspend collection, unless a request for deferred payment is made, which may be conditioned on the provision of guarantees.

Penalties: what distinguishes a mistake from a failure

The final amount depends less on the adjustment itself than on the classification applied.

The late payment interest applies in all cases: it compensates the Treasury for the cash-flow harm and is not considered a penalty. Depending on the established conduct, the following may be added:

• A surcharge in the event of a deliberate failure, when the tax administration establishes intent.
• A significantly heavier surcharge in the event of fraudulent maneuvers or abuse of law.
• Specific surcharges in the event of failure to file or late filing.

The line between a good-faith error and a deliberate failure is determined by concrete factors: whether it is repetitive, the significance of the amounts involved, and the existence of prior warnings. Rigorous accounting records, in which depreciation and provisions are individually justified, argue in favor of good faith far more effectively than a mere statement of intent.

Use cases

Receipt of a notice of audit. Immediately check three things: the years covered, the period before the first intervention, and the mention of the right to assistance. Notify your advisor before the first meeting, not after.

Proposed adjustment received. Systematically request the thirty-day extension, then respond point by point, providing supporting documents. Silence constitutes acceptance.

Persistent disagreement. Pursue the remedies in order, without skipping any: each level is an opportunity for review, and the tax commission rules usefully on questions of fact.

Frequently asked questions

Can the tax administration audit without giving notice? An accounting audit requires prior notice and a sufficient period. A desk audit, on the other hand, takes place without an on-site intervention and is carried out through written requests.

How many years does the audit cover? The standard statute-of-limitations period covers the three preceding fiscal years, with extended periods in certain situations, notably in the case of undisclosed activity.

Can the company be assisted? Yes, by an advisor of its choice. The notice of audit must mention this right, and omitting this mention results in the nullity of the procedure.

What is the deadline for responding to a proposed adjustment? Thirty days, extendable by thirty additional days upon simple request. Silence constitutes acceptance of the proposed adjustments.

Does the hierarchical appeal suspend payment? No. Only a request for deferred payment suspends collection, and it may be conditioned on the provision of guarantees.

How can the surcharge for deliberate failure be avoided? By demonstrating good faith, which must be prepared in advance: complete supporting documents, well-documented positions, consistency over time. This is a matter of building a file, not making arguments.

Key takeaways

Three moments determine the outcome of an audit. The receipt of the notice, when the formal guarantees are checked — sufficient notice period, mention of the right to assistance — the irregularity of which taints the entire procedure. The proceedings, which require an effective oral and adversarial exchange. And the thirty-day period following the proposed adjustment, which is extendable, and whose silent expiration constitutes acceptance.

Ahead of these three moments, what protects a company remains the quality of its supporting documents, a topic covered in our article on corporate taxation. An audit is not won through argumentation: it is won through a file built before it even begins.