Traverser un contrôle fiscal

The French tax audit procedure, from the first letter to the court: at every stage, what the tax authority may do, what you can raise against it, and within what deadline.

Receiving a letter from the tax authority announcing an audit almost always triggers the same reaction: you read it three times, you look for what could have set it off, and you wonder how long you have to react. The answer to that last question is written in the texts, and it is often more favourable than people think. A tax audit is a procedure: it has forms, deadlines, safeguards and appeal routes. Every stage opens a right for the taxpayer, and every right is lost if it is not exercised within the prescribed deadline. This guide describes that procedure from the first letter to the court, stating at each stage what the authority may do, what you can raise against it, and within what deadline. The document is informational and procedural: it contains no tax-optimisation advice, no technique for reducing tax, and no way to escape an audit. It does not replace professional advice — as soon as a significant financial issue appears, get assistance from a tax lawyer or a chartered accountant. Audience: small-business owners, self-employed professionals and nonprofits under audit. Delivered as PDF, EPUB, Markdown and HTML, updated as of 31/07/2026. The e-book is written in French (it deals with French procedure).

What you get

• The procedure described in order, from the first letter to the court
• At every stage: what the authority may do, what you can raise against it, within what deadline
• Taxpayer safeguards and appeal routes, stage by stage
• The principle that costs the most: a right not exercised within the deadline is lost
• Written for small-business owners, self-employed professionals and nonprofits
• No optimisation advice, no tax-reduction technique, no way to escape an audit — stated upfront
• The alert threshold: when to hand over to a tax lawyer or a chartered accountant
• 4 reading formats: PDF, EPUB, Markdown (source) and HTML — updated as of 31/07/2026

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