French Labour Law

URSSAF Audit: Risks for Employers

DAIRIA Law · 2026-06-23 · 4 min

URSSAF Audit: Risks for Employers

Companies face URSSAF audits, whose consequences can be significant, both financially and in terms of reputation. Understanding the risks associated with these audits is essential for anticipating and better managing them.

Understanding the URSSAF Audit Process

A URSSAF audit generally starts with the sending of a control notice, which is a mandatory notification specifying the date and nature of the upcoming checks. This notice must be communicated at least seven days in advance for small and medium-sized enterprises and fifteen days for larger companies. URSSAF has the right to verify the compliance of your declarations and payments in various areas, including social security contributions, professional training contributions, and complementary pensions.

Main Risks:

  • Financial Reassessment: If irregularities are found, this may lead to a reassessment of the contributions owed.
  • Penalties and Increases: In case of non-payment or under-declaration, increases may be applied, worsening your company’s financial situation.
  • Reputational Impact: Compliance issues can also tarnish your company’s image in the eyes of your clients and partners.

Assessment of Bases and Extrapolation Methods

During an audit, URSSAF has several methods at its disposal to determine the base of contributions.

  1. Real Verification: This involves examining accounting documents, pay slips, and other supporting documents. It is the most precise and direct method, but also the most time-consuming.

  2. Sampling - Extrapolation: In cases of large volumes of data, URSSAF may choose to proceed through sampling. This means that a subset of the data will be examined, and the results will be extrapolated to the entire set of declarations. Although this method is faster, it carries a risk since the conclusions apply to all employees or periods checked.

  3. Flat-Rate Taxation: If URSSAF is unable to establish a precise figure, it may impose a flat-rate tax based on an estimate. This method is often contested by companies as it can significantly increase the amounts owed.

  • Article L.243-7 of the Social Security Code, which establishes the framework for contribution checks.

Steps of the Contradictory Period

Once URSSAF has conducted its audit, it sends an observation letter summarizing its conclusions. You have a period, generally of thirty days, to respond and contest these observations. This phase is crucial for defending your company.

  • Contradictory Period: It is imperative to respond in detail and in a structured manner to each point raised by URSSAF, providing arguments and documents to recreate your compliance. Ignoring this step can lead to tacit acceptance of URSSAF’s findings.

  • Formal Notice and Enforcement: If no amicable solution is found, URSSAF can issue a formal notice to demand payment of the reassessed contributions, potentially followed by enforcement if the amount remains unpaid within the stipulated time frame.

URSSAF Litigation: From Introduction to Court

In the event of a persistent disagreement, you can contest the reassessment before the judicial court, usually at the social division. It is advisable to be represented by a lawyer specialized in social security law to strengthen your position.

  • Increases and Penalties: An uncontested reassessment may result in financial penalties. Therefore, it is crucial to closely observe the contested amounts and prepare a solid defense.
  • Prescription: Keep in mind that URSSAF has a fixed period to conduct its audits, usually three years. After this period, reassessment is no longer possible.

Negotiation and Transaction: An Alternative Path

It is often possible to reach an amicable agreement with URSSAF through negotiations. This may involve a settlement allowing for a reduction of the contributions to be paid or spreading out payments. This option is particularly appealing as it helps to avoid lengthy and costly litigation.

Frequently Asked Questions

What is a URSSAF audit?

A URSSAF audit is a verification conducted by the organization to ensure that contributors comply with their obligations regarding social contributions and declarations.

What are the prescription periods for a URSSAF audit?

The prescription period for URSSAF audits is generally three years from the due date of the contributions.

What should I do if I receive a control notice?

It is important to take this notice seriously and prepare your accounting documents. You may also contact a specialized lawyer to assist you in this process.

What risks does my company face in the event of a reassessment?

In the event of a reassessment, your company may face increased amounts due, penalties, and also repercussions on its image.

How can I contest a URSSAF decision?

You can contest a decision by sending a reasoned response to URSSAF during the contradictory period, and if necessary, by making an appeal to the competent court.

Conclusion

Proactive work and preparation for URSSAF audits are essential to minimize risks. By regularly analyzing your compliance and establishing transparent relationships with URSSAF, you can not only avoid complications but also protect your business in the long term. DAIRIA Law Firm is at your disposal to assist you and secure your commitments to URSSAF.

📌 This article is part of the complete file URSSAF Audit: The Employer’s Guide.

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